KIS REST API MCP Server
The KIS REST API MCP Server acts as a Model Context Protocol interface to the Korea Investment & Securities REST API, enabling stock trading and market data retrieval for both domestic and overseas markets.
Domestic Stock Trading:
Inquire real-time stock prices (
inquery-stock-price) and bid/ask information (inquery-stock-ask)Place buy/sell orders (
order-stock)Check account balances (
inquery-balance)Retrieve order history (
inquery-order-list) and details (inquery-order-detail)Access daily stock price information (
inquery-stock-info) and historical data (inquery-stock-history)
Overseas Stock Trading:
Place buy/sell orders for international stocks (
order-overseas-stock)Inquire real-time prices for stocks in major markets including US (NASDAQ, NYSE, AMEX), Japan, China, Hong Kong, and Vietnam (
inquery-overseas-stock-price)
Integrates with Python 3.13+ as the required runtime environment for the MCP server, as indicated by both the badge and requirements section.
Uses Shields.io badges to display Python version requirements and license information in the README.
Click on "Install Server".
Wait a few minutes for the server to deploy. Once ready, it will show a "Started" state.
In the chat, type
@followed by the MCP server name and your instructions, e.g., "@KIS REST API MCP Servercheck Samsung Electronics current stock price"
That's it! The server will respond to your query, and you can continue using it as needed.
Here is a step-by-step guide with screenshots.
Korea Investment & Securities (KIS) REST API MCP (Model Context Protocol)
This is a server that calls the Korea Investment & Securities (KIS) REST API as MCP tools. It provides domestic/foreign stock inquiries, account inquiries, and order-related APIs through both catalog-based general tools and frequently used convenience tools.
Key Features
API Catalog-based Calls
Provides 166 REST APIs across 8 groups
Check API groups/IDs, paths, HTTP methods, TR_ID candidates, and request parameters
Provides Korean labels, input guides, example values, and major code values for each parameter
Full list:
API_CATALOG.md
Domestic Stocks
Inquire current price, period/daily quotes, quotes (order book), industry indices, and basic information
Inquire balance, investment account asset status, buyable amount, and sellable quantity
Inquire orders/order history/correctable/cancellable orders
Foreign Stocks
Supports market codes for US, Japan, China, Hong Kong, and Vietnam
Inquire current price, balance, current balance based on execution, margin by currency, and buyable amount
Automatic selection of order TR_ID based on market/buy-sell direction
Execution/Operation
Supports
stdio,sse, andstreamable-httptransportsConfiguration based on
.envor command-line argumentsAutomatic completion of account number, account product code, and authentication values
Token cache based on app key and account type
Default rejection of unknown request parameters
Default blocking of order/correction/cancellation APIs
Related MCP server: kiwoom-mcp
Safety Defaults
APIs that change account status, such as orders/corrections/cancellations, are blocked by default.
KIS_ENABLE_TRADING=trueStatus change APIs are executed only when the above value is explicitly set. Do not set this if you are only using inquiry APIs.
Requirements
Python >= 3.13
uv
Installation
Proceed with installation based on INSTALL.md. LLMs or MCP clients should also read this file first when configuring.
INSTALL.md includes the following content:
uv-based dependency installation.envcreation and settingKIS_APP_KEY,KIS_APP_SECRET,KIS_CANO,KIS_ACNT_PRDT_CDExamples for registering with Codex CLI, Claude Code, Claude Desktop, and general MCP clients
KIS_MCP_TOOLSET=catalogsetting for context savingcall-kis-apiexamples for balance, buyable amount, and current price inquiries
Quick local setup:
pip install uv
uv sync
cp .env.example .env
chmod 600 .envThen, set the following values in .env. Refer to INSTALL.md for detailed value descriptions and registration commands for each client.
KIS_APP_KEY="발급받은 앱키"
KIS_APP_SECRET="발급받은 시크릿키"
KIS_ACCOUNT_TYPE="REAL" # REAL 또는 VIRTUAL
KIS_CANO="계좌번호 앞 8자리"
KIS_ACNT_PRDT_CD="01"
KIS_MCP_TOOLSET="catalog"Execution
# stdio, 로컬 MCP 클라이언트 권장
uv run python server.pyYou can also configure it via command-line arguments.
uv run python server.py \
--app-key "앱키" \
--app-secret "시크릿키" \
--account-type "REAL" \
--cano "계좌번호" \
--acnt-prdt-cd "01"Transport selection:
MCP_TYPE=stdio uv run python server.py
MCP_TYPE=streamable-http MCP_HOST=127.0.0.1 MCP_PORT=8000 MCP_PATH=/mcp uv run python server.py
MCP_TYPE=sse MCP_HOST=127.0.0.1 MCP_PORT=8000 MCP_PATH=/sse uv run python server.pyMCP client registration example:
Below is a minimal example for a general MCP client. Use INSTALL.md for Codex CLI, Claude Code, and Claude Desktop commands.
{
"mcpServers": {
"kis-mcp-server": {
"command": "uv",
"args": ["run", "python", "server.py"],
"cwd": "<project-root>",
"env": {
"KIS_MCP_TOOLSET": "catalog",
"KIS_MCP_LOG_LEVEL": "WARNING"
}
}
}
}MCP Tool Configuration
Catalog Tools
Tool | Description |
| Inquire list based on API group/search term |
| Check path, TR_ID candidates, and parameters for a single API |
| Call catalog API with |
list-kis-api-specs returns labels, example values, and major code values for required parameters together.
get-kis-api-spec returns label, guide, examples, values, default, and auto_fill information for all parameters, allowing the LLM to immediately verify the input format required for the call.
call-kis-api performs the following common processing:
Automatic input of account number/account product code based on environment variables
Authentication token issuance and caching
GET/POST request configuration
Automatic selection of order TR_ID among multiple TR_IDs
Application of safety gate for status change APIs
Default rejection of parameters not in the catalog
Convenience Tools
Frequently used domestic/foreign stock functions are also provided as separate MCP tools.
Tool | Description |
| Domestic stock current price inquiry |
| Domestic stock balance inquiry |
| Domestic stock daily order/execution inquiry |
| Domestic stock order detail inquiry |
| Domestic stock daily quote inquiry |
| Domestic stock period quote inquiry |
| Domestic stock quote (order book) inquiry |
| Domestic industry/index current price inquiry |
| Domestic stock basic info inquiry |
| Foreign stock current price inquiry |
| Domestic stock buy/sell order |
| Foreign stock buy/sell order |
Order tools will not execute without KIS_ENABLE_TRADING=true.
Tool Loading Optimization
MCP clients load tool names, descriptions, and input schemas into the context when connecting to the server. Since exposing more convenience tools increases context usage at the start of a conversation, you can use a lightweight mode that exposes only the 3 catalog tools if necessary.
KIS_MCP_TOOLSET=catalog uv run python server.pyValue | Number of exposed tools | Exposed tools | Purpose |
| 15 | Catalog tools + all convenience tools | Compatible with existing behavior |
| 3 |
| Low context usage |
catalog mode is for reducing the MCP tool schema load. While convenience tools are hidden, all 166 APIs can still be called via call-kis-api. You can find the necessary API with list-kis-api-specs and look up required detailed parameters with get-kis-api-spec as needed.
Recommended usage flow:
Search for an API with
list-kis-api-specs.Check required parameters, example values, and code values with
get-kis-api-spec.Call the actual API with
call-kis-api.
You only need to add environment variables in the MCP client settings as well.
{
"env": {
"KIS_MCP_TOOLSET": "catalog"
}
}If you want to expose frequently used convenience tools directly in the tool list, use the default value full.
call-kis-api Examples
Domestic stock current price:
{
"group": "domestic_stock",
"api_type": "inquire_price",
"params": {
"fid_cond_mrkt_div_code": "J",
"fid_input_iscd": "005930"
}
}Foreign stock balance:
{
"group": "overseas_stock",
"api_type": "inquire_balance",
"params": {
"ovrs_excg_cd": "NASD",
"tr_crcy_cd": "USD"
}
}Foreign stock current balance based on execution:
{
"group": "overseas_stock",
"api_type": "inquire_present_balance",
"params": {
"wcrc_frcr_dvsn_cd": "01",
"natn_cd": "000",
"tr_mket_cd": "00",
"inqr_dvsn_cd": "00"
}
}Foreign stock buyable amount:
{
"group": "overseas_stock",
"api_type": "inquire_psamount",
"params": {
"ovrs_excg_cd": "NASD",
"ovrs_ord_unpr": "1",
"item_cd": "QQQ"
}
}Major API Groups
Group | Description | Number of APIs |
| Authentication | 2 |
| Domestic Stocks | 74 |
| Foreign Stocks | 34 |
| Domestic Bonds | 14 |
| Domestic Futures/Options | 20 |
| Foreign Futures/Options | 19 |
| ELW | 1 |
| ETF/ETN | 2 |
Full API IDs, paths, TR_IDs, and required parameter guides are summarized in API_CATALOG.md.
Environment Variables
Name | Description | Default |
| KIS App Key | - |
| KIS Secret Key | - |
|
| - |
| First 8 digits of account number | - |
| Account product code |
|
| Token cache file |
|
| Enable order/correction/cancellation APIs | Disabled |
| MCP tool exposure scope ( |
|
| Log level |
|
|
|
|
| HTTP/SSE host |
|
| HTTP/SSE port |
|
| HTTP/SSE path |
|
Development/Verification
uv run python -m compileall main.py server.py example.py tests
uv run python -m unittest discover -v
git diff --checkLicense
MIT
Available Tools
10 toolsinquery-balanceB
Get current stock balance information from Korea Investment & Securities
| Name | Required | Description | Default |
|---|---|---|---|
No parameters | |||
TDQS
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
With no annotations provided, the description carries full burden but only states what the tool does, not how it behaves. It doesn't disclose whether this requires authentication, has rate limits, returns real-time vs. cached data, what format the balance information comes in, or any error conditions. The description adds no behavioral context beyond the basic purpose.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.
Is the description appropriately sized, front-loaded, and free of redundancy?
The description is a single, efficient sentence that communicates the essential purpose without any wasted words. It's appropriately sized for a simple read operation and front-loads the key information ('Get current stock balance information').
Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.
Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
For a financial data tool with no annotations and no output schema, the description is insufficient. It doesn't explain what balance information is returned (cash balance, stock positions, margin status, etc.), the data format, whether authentication is required, or any limitations. Given the complexity of financial systems and lack of structured documentation, more context is needed.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.
Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
The tool has zero parameters with 100% schema description coverage, so the schema already fully documents the parameter situation. The description appropriately doesn't mention parameters since none exist. A baseline of 4 is appropriate for zero-parameter tools where the schema handles documentation.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.
Does the description clearly state what the tool does and how it differs from similar tools?
The description clearly states the action ('Get') and resource ('current stock balance information') with specific context ('from Korea Investment & Securities'). It distinguishes from siblings by focusing on balance rather than orders, prices, or history. However, it doesn't explicitly differentiate from potential similar tools like account summaries.
Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.
Does the description explain when to use this tool, when not to, or what alternatives exist?
No guidance is provided about when to use this tool versus alternatives. While the name suggests it's for balance inquiries (vs. order or price queries), the description doesn't mention when this specific balance tool should be used over other financial data tools or what prerequisites might exist.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
inquery-order-detailC
Get order detail from Korea Investment & Securities
| Name | Required | Description | Default |
|---|---|---|---|
| order_no | Yes | ||
| order_date | Yes |
TDQS
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
With no annotations provided, the description carries the full burden of behavioral disclosure. It states the tool retrieves order details, implying a read-only operation, but doesn't cover aspects like authentication needs, rate limits, error handling, or response format. This is a significant gap for a tool with zero annotation coverage.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.
Is the description appropriately sized, front-loaded, and free of redundancy?
The description is a single, efficient sentence with no wasted words. It's front-loaded and directly states the tool's purpose without unnecessary elaboration.
Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.
Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
Given the lack of annotations, no output schema, and 0% schema description coverage, the description is incomplete. It doesn't provide enough context for the agent to understand behavioral traits, parameter usage, or expected outcomes, which is inadequate for a tool with two required parameters.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.
Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
The description adds no information about the parameters beyond what the input schema provides. Since schema description coverage is 0%, the description doesn't compensate by explaining the meaning or format of 'order_no' and 'order_date'. However, with only 2 parameters and no complex schema, the baseline score of 3 is appropriate as the schema itself is minimal.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.
Does the description clearly state what the tool does and how it differs from similar tools?
The description clearly states the action ('Get') and resource ('order detail from Korea Investment & Securities'), making the purpose understandable. However, it doesn't explicitly differentiate this tool from sibling tools like 'inquery-order-list' or 'inquery-balance', which prevents a perfect score.
Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.
Does the description explain when to use this tool, when not to, or what alternatives exist?
The description provides no guidance on when to use this tool versus alternatives. It doesn't mention prerequisites, context, or exclusions, leaving the agent to infer usage based on the name alone.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
inquery-order-listC
Get daily order list from Korea Investment & Securities
| Name | Required | Description | Default |
|---|---|---|---|
| start_date | Yes | ||
| end_date | Yes |
TDQS
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
No annotations are provided, so the description carries full burden. It states 'Get' implying a read operation, but doesn't disclose behavioral traits such as authentication needs, rate limits, pagination, or response format. For a financial data tool with no annotations, this is a significant gap in transparency about how the tool behaves and any constraints.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.
Is the description appropriately sized, front-loaded, and free of redundancy?
The description is a single, efficient sentence that front-loads the core purpose ('Get daily order list') and specifies the source. There is zero waste or redundancy, making it highly concise and well-structured for quick understanding.
Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.
Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
Given the tool's complexity (financial data retrieval with date parameters), lack of annotations, no output schema, and low schema coverage, the description is incomplete. It doesn't cover authentication, error handling, return values, or how to interpret results, leaving critical gaps for an AI agent to use the tool effectively in a real-world context.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.
Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
Schema description coverage is 0%, so the description must compensate. It mentions 'daily order list' which implies date-based filtering, aligning with the 'start_date' and 'end_date' parameters. However, it doesn't add meaning beyond this implication—no details on date format, timezone, or what 'daily' entails (e.g., if it aggregates by day). With two undocumented parameters, the description provides minimal semantic value.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.
Does the description clearly state what the tool does and how it differs from similar tools?
The description clearly states the verb ('Get') and resource ('daily order list'), specifying the source ('from Korea Investment & Securities'). It distinguishes from siblings like 'inquery-balance' or 'inquery-order-detail' by focusing on daily order lists rather than balances or detailed orders. However, it doesn't explicitly differentiate from 'order-stock' or 'order-overseas-stock', which might be related write operations.
Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.
Does the description explain when to use this tool, when not to, or what alternatives exist?
No explicit guidance on when to use this tool versus alternatives like 'inquery-order-detail' for specific orders or 'inquery-balance' for account balances. The description implies usage for retrieving daily order lists, but lacks context on prerequisites, exclusions, or comparisons to sibling tools, leaving the agent to infer based on tool names alone.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
inquery-overseas-stock-priceC
Get overseas stock price from Korea Investment & Securities
| Name | Required | Description | Default |
|---|---|---|---|
| symbol | Yes | ||
| market | Yes |
TDQS
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
With no annotations provided, the description carries full burden for behavioral disclosure but provides minimal information. It states what the tool does but doesn't describe response format, error conditions, rate limits, authentication requirements, or whether this is a read-only operation. For a financial data query tool with zero annotation coverage, this leaves significant behavioral questions unanswered about how the tool actually behaves when invoked.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.
Is the description appropriately sized, front-loaded, and free of redundancy?
The description is extremely concise - a single sentence that gets straight to the point without unnecessary words. It's front-loaded with the core functionality. While perhaps too brief given the lack of other documentation, the sentence itself is efficient and doesn't waste space on redundant information.
Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.
Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
Given the tool's financial query nature, 2 required parameters, 0% schema coverage, no annotations, and no output schema, the description is insufficiently complete. It states what the tool does at a high level but provides none of the operational details needed to use it effectively. Users need to understand parameter formats, response structure, and behavioral characteristics that are completely missing from this minimal description.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.
Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
With 0% schema description coverage and 2 required parameters, the description provides no information about parameter meaning or usage. It doesn't explain what 'symbol' and 'market' represent, what formats they accept, or provide examples. The description doesn't compensate for the complete lack of schema documentation, leaving users to guess about parameter requirements for this overseas stock price query.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.
Does the description clearly state what the tool does and how it differs from similar tools?
The description clearly states the action ('Get') and resource ('overseas stock price from Korea Investment & Securities'), making the purpose immediately understandable. It distinguishes itself from siblings like 'inquery-stock-price' by specifying 'overseas' scope, though it doesn't explicitly contrast with all siblings. The description avoids tautology by providing meaningful context beyond just restating the tool name.
Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.
Does the description explain when to use this tool, when not to, or what alternatives exist?
The description provides no guidance on when to use this tool versus alternatives. It doesn't mention when this overseas stock price query is appropriate compared to domestic tools like 'inquery-stock-price' or other overseas-related tools like 'order-overseas-stock'. There's no indication of prerequisites, constraints, or typical use cases for this specific overseas price query functionality.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
inquery-stock-askC
Get stock ask price from Korea Investment & Securities
| Name | Required | Description | Default |
|---|---|---|---|
| symbol | Yes |
TDQS
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
No annotations are provided, so the description carries the full burden of behavioral disclosure. It states the tool retrieves ask prices but doesn't mention whether this is a read-only operation, requires authentication, has rate limits, returns real-time or delayed data, or handles errors. For a financial data tool with zero annotation coverage, this is a significant gap in transparency.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.
Is the description appropriately sized, front-loaded, and free of redundancy?
The description is a single, efficient sentence that directly states the tool's purpose without unnecessary words. It's appropriately sized and front-loaded, making it easy to parse quickly.
Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.
Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
Given the complexity of financial data queries, no annotations, no output schema, and incomplete parameter documentation, the description is inadequate. It doesn't explain what the ask price represents, the data format returned, or how it differs from related tools, leaving too many gaps for effective agent use.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.
Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
The input schema has 1 parameter with 0% description coverage, and the tool description provides no information about the 'symbol' parameter. It doesn't specify the expected format (e.g., ticker symbols for Korean stocks), examples, or constraints, failing to compensate for the lack of schema documentation.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.
Does the description clearly state what the tool does and how it differs from similar tools?
The description clearly states the action ('Get') and resource ('stock ask price') with specific source ('Korea Investment & Securities'), making the purpose understandable. However, it doesn't explicitly differentiate from sibling tools like 'inquery-stock-price' or 'inquery-overseas-stock-price', which likely provide similar price information but for different markets or price types.
Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.
Does the description explain when to use this tool, when not to, or what alternatives exist?
The description provides no guidance on when to use this tool versus alternatives. With siblings like 'inquery-stock-price' and 'inquery-overseas-stock-price' available, there's no indication of whether this tool is for Korean stocks specifically, real-time vs. historical data, or ask price vs. other price types, leaving usage context unclear.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
inquery-stock-historyC
Get daily stock price history from Korea Investment & Securities
| Name | Required | Description | Default |
|---|---|---|---|
| symbol | Yes | ||
| start_date | Yes | ||
| end_date | Yes |
TDQS
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
With no annotations provided, the description carries the full burden of behavioral disclosure. It states the tool retrieves historical data but doesn't specify aspects like rate limits, authentication requirements, data format, error handling, or whether it's a read-only operation. This leaves significant gaps for an agent to understand how to interact with it safely and effectively.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.
Is the description appropriately sized, front-loaded, and free of redundancy?
The description is a single, clear sentence that directly states the tool's purpose without any fluff. It's appropriately sized and front-loaded, making it easy for an agent to parse quickly.
Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.
Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
Given the complexity of a financial data tool with 3 required parameters, no annotations, and no output schema, the description is incomplete. It lacks details on parameter semantics, behavioral traits, and expected outputs, which are crucial for an agent to use this tool correctly in a real-world context.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.
Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
The schema description coverage is 0%, meaning none of the three parameters (symbol, start_date, end_date) have descriptions in the schema. The tool description doesn't compensate by explaining what these parameters mean, their expected formats (e.g., date format like YYYY-MM-DD), or valid ranges. This leaves the agent guessing about input requirements.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.
Does the description clearly state what the tool does and how it differs from similar tools?
The description clearly states the action ('Get daily stock price history') and specifies the data source ('from Korea Investment & Securities'), which distinguishes it from general stock price queries. However, it doesn't explicitly differentiate from sibling tools like 'inquery-stock-price' or 'inquery-overseas-stock-price' in terms of scope or granularity.
Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.
Does the description explain when to use this tool, when not to, or what alternatives exist?
The description provides no guidance on when to use this tool versus alternatives. It doesn't mention prerequisites, limitations, or compare it to siblings such as 'inquery-stock-price' (which might provide current prices) or 'inquery-overseas-stock-price' (which might handle non-Korean stocks).
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
inquery-stock-infoC
Get daily stock price information from Korea Investment & Securities
| Name | Required | Description | Default |
|---|---|---|---|
| symbol | Yes | ||
| start_date | Yes | ||
| end_date | Yes |
TDQS
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
With no annotations provided, the description carries the full burden of behavioral disclosure. It states the tool retrieves 'daily stock price information,' implying a read-only operation, but fails to mention critical details like authentication requirements, rate limits, data freshness, or error handling. This leaves significant gaps in understanding how the tool behaves in practice.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.
Is the description appropriately sized, front-loaded, and free of redundancy?
The description is a single, efficient sentence that directly states the tool's purpose without any unnecessary words. It is front-loaded and appropriately sized for its content, making it easy to parse quickly.
Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.
Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
Given the complexity of a financial data tool with 3 required parameters, no annotations, and no output schema, the description is incomplete. It lacks details on parameter semantics, behavioral traits, and expected outputs, leaving the agent with insufficient information to use the tool effectively in context.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.
Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
Schema description coverage is 0%, meaning parameters are undocumented in the schema. The description does not add any meaning beyond the parameter names (e.g., it doesn't explain what 'symbol' represents, date formats for 'start_date' and 'end_date', or valid ranges). This fails to compensate for the low schema coverage, making parameter understanding inadequate.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.
Does the description clearly state what the tool does and how it differs from similar tools?
The description clearly states the action ('Get daily stock price information') and the resource ('from Korea Investment & Securities'), which is specific and unambiguous. However, it doesn't explicitly differentiate from sibling tools like 'inquery-stock-price' or 'inquery-stock-history', which likely serve similar purposes, preventing a perfect score.
Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.
Does the description explain when to use this tool, when not to, or what alternatives exist?
The description provides no guidance on when to use this tool versus alternatives, such as how it differs from 'inquery-stock-price' or 'inquery-stock-history' among the sibling tools. It lacks any context about use cases, prerequisites, or exclusions, leaving the agent with minimal direction.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
inquery-stock-priceC
Get current stock price information from Korea Investment & Securities
| Name | Required | Description | Default |
|---|---|---|---|
| symbol | Yes |
TDQS
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
With no annotations provided, the description carries the full burden of behavioral disclosure. It states what the tool does but lacks critical behavioral details such as whether this is a read-only operation, potential rate limits, authentication requirements, or error handling. For a financial data tool with zero annotation coverage, this is a significant gap.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.
Is the description appropriately sized, front-loaded, and free of redundancy?
The description is a single, efficient sentence that directly states the tool's purpose without unnecessary words. It's appropriately sized and front-loaded, with every word contributing to understanding what the tool does.
Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.
Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
Given the complexity of financial data queries, no annotations, no output schema, and 0% schema description coverage, the description is inadequate. It doesn't explain what information is returned (e.g., price, currency, timestamp), how current the data is, or any limitations. For a tool that likely provides time-sensitive financial information, this leaves too many questions unanswered.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.
Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
The input schema has 1 parameter with 0% description coverage, and the tool description provides no information about the 'symbol' parameter. It doesn't explain what format the symbol should be in (e.g., ticker symbols for Korean stocks), valid examples, or any constraints. The description fails to compensate for the complete lack of schema documentation.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.
Does the description clearly state what the tool does and how it differs from similar tools?
The description clearly states the tool's purpose with a specific verb ('Get') and resource ('current stock price information'), and specifies the data source ('Korea Investment & Securities'). However, it doesn't explicitly differentiate from sibling tools like 'inquery-overseas-stock-price' or 'inquery-stock-info', which likely serve related but distinct purposes.
Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.
Does the description explain when to use this tool, when not to, or what alternatives exist?
The description provides no guidance on when to use this tool versus alternatives. It doesn't mention sibling tools like 'inquery-overseas-stock-price' for overseas stocks or 'inquery-stock-info' for general stock information, leaving the agent to infer usage context without explicit direction.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
order-overseas-stockC
Order overseas stock (buy/sell) from Korea Investment & Securities
| Name | Required | Description | Default |
|---|---|---|---|
| symbol | Yes | ||
| quantity | Yes | ||
| price | Yes | ||
| order_type | Yes | ||
| market | Yes |
TDQS
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
With no annotations provided, the description carries the full burden of behavioral disclosure. While 'Order' implies a write/mutation operation, the description doesn't address critical behavioral aspects: whether this executes immediately or places an order, what permissions are required, whether it's reversible, confirmation requirements, rate limits, or what happens on failure. For a financial transaction tool with zero annotation coverage, this represents a significant gap in behavioral transparency.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.
Is the description appropriately sized, front-loaded, and free of redundancy?
The description is appropriately concise at just one sentence that states the core purpose. There's no unnecessary verbiage or repetition. However, the structure could be improved by front-loading more critical information about when to use this tool versus its sibling 'order-stock'.
Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.
Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
For a financial transaction tool with 5 required parameters, no annotations, no output schema, and 0% schema description coverage, the description is incomplete. It doesn't explain parameter meanings, behavioral characteristics, success/failure conditions, or differentiation from the sibling 'order-stock' tool. The description fails to provide the contextual information needed for safe and correct tool invocation.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.
Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
With 0% schema description coverage for all 5 required parameters, the description provides no information about what any parameter means or how to use them. The description doesn't explain what 'symbol' represents, what 'order_type' options exist, what 'market' refers to, or the units/format for 'price' and 'quantity'. For a tool with 5 undocumented parameters, this is insufficient compensation for the schema coverage gap.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.
Does the description clearly state what the tool does and how it differs from similar tools?
The description clearly states the action ('Order overseas stock') and specifies the resource ('from Korea Investment & Securities'), with the parenthetical '(buy/sell)' providing additional context about the transaction type. However, it doesn't explicitly differentiate this tool from its sibling 'order-stock' which appears to handle domestic orders, leaving some ambiguity about when to use each.
Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.
Does the description explain when to use this tool, when not to, or what alternatives exist?
The description provides no guidance on when to use this tool versus alternatives. With a sibling tool named 'order-stock' that likely handles domestic orders, there's no indication of when to choose overseas vs domestic ordering. No prerequisites, constraints, or comparison with other tools are mentioned.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
order-stockC
Order stock (buy/sell) from Korea Investment & Securities
| Name | Required | Description | Default |
|---|---|---|---|
| symbol | Yes | ||
| quantity | Yes | ||
| price | Yes | ||
| order_type | Yes |
TDQS
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
With no annotations provided, the description carries the full burden of behavioral disclosure. It mentions 'buy/sell' but doesn't clarify if this is a live trade execution, a simulation, or requires confirmation. It omits critical details like authentication needs, rate limits, transaction costs, or whether the order is immediate or pending.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.
Is the description appropriately sized, front-loaded, and free of redundancy?
The description is a single, efficient sentence that gets straight to the point without unnecessary words. It's appropriately sized for a tool with four parameters, though it could benefit from slightly more detail given the lack of annotations and schema coverage.
Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.
Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
Given the complexity of a financial trading tool with no annotations, 0% schema coverage, and no output schema, the description is incomplete. It doesn't address behavioral traits, parameter meanings, or expected outcomes, leaving significant gaps for an AI agent to understand how to use it correctly.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.
Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
Schema description coverage is 0%, so the description must compensate but fails to do so. It doesn't explain what 'symbol', 'quantity', 'price', or 'order_type' mean in this context (e.g., currency units, order type options like market/limit). The description adds no semantic value beyond the bare parameter names.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.
Does the description clearly state what the tool does and how it differs from similar tools?
The description clearly states the action ('Order stock') and specifies the resource (stock from Korea Investment & Securities), distinguishing it from sibling tools that are primarily query operations (e.g., 'inquery-balance', 'inquery-stock-price'). However, it doesn't explicitly mention the buy/sell aspect beyond the parentheses, which could be more prominent.
Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.
Does the description explain when to use this tool, when not to, or what alternatives exist?
The description provides no guidance on when to use this tool versus alternatives like 'order-overseas-stock' or the various 'inquery' siblings. It lacks context about prerequisites, such as authentication or account setup, and doesn't specify scenarios where this tool is appropriate.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
Tool Schema Changelog
Recent tool additions, removals, and schema changes observed during successful MCP inspections. Dates show when Glama detected each change.
10 tool updates
- First observed
inquery-balance - First observed
inquery-order-detail - First observed
inquery-order-list - First observed
inquery-overseas-stock-price - First observed
inquery-stock-ask - First observed
inquery-stock-history - First observed
inquery-stock-info - First observed
inquery-stock-price - First observed
order-overseas-stock - First observed
order-stock
TDQS
The tools have clear distinctions between querying (inquery-*) and ordering (order-*), but within the querying tools there is significant overlap that could cause confusion. For example, inquery-stock-price, inquery-stock-info, and inquery-stock-ask all seem to retrieve stock price-related data with subtle differences that may not be immediately clear to an agent.
All tool names follow a consistent hyphen-separated pattern with a clear verb-noun structure (e.g., inquery-balance, order-stock). The naming is predictable and uniform across all 10 tools, making it easy for an agent to parse and understand the purpose of each tool.
With 10 tools, the count is well-scoped for a securities trading API, covering key operations like querying balances, orders, stock prices, and placing orders. Each tool appears to serve a distinct function within the domain, and the number is neither too sparse nor overwhelming.
The tool set provides comprehensive coverage for core trading operations, including querying various data (balances, orders, prices) and executing orders (domestic and overseas). A minor gap is the lack of tools for modifying or canceling orders, which might be necessary for full lifecycle management, but agents can likely work around this with the existing query and order tools.
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