Popular MCP Servers

Gateway connector between LLM agents and world data, providing access to financial market prices, macroeconomic indicators, and news through a bundled endpoint catalog.

Discover and pay for APIs and MCP tools per call over Bitcoin Lightning (L402): search the bolthub marketplace, preview prices, and pay from your own wallet (LND, NWC, LNbits) with hard budgets, prepaid credit, scoped sub-agent delegation, and verifiable receipts. Non-custodial and works without a wallet for search and free tools.

Prediction-market quant tools — expected value, Kelly sizing, Bayesian updating, odds conversion, base-rate gaps, cross-platform arbitrage, and mispricing edge — for Kalshi and Polymarket contracts, exposed as a remote MCP server.

Fail-closed evidence manifests for financial AI research: one manifest records evidence artifacts, cutoff timestamps, checks, AI usage and human approval — one verdict before anything ships. MCP tools: gov_check, gov_report, gov_init.

Enables interaction with the public Digital Asset Scan API to analyze digital assets, list assets, retrieve methodology, and poll asynchronous analysis jobs over MCP.

Provides AI agents with direct access to the Ray Group DeFi UX rubric, named patterns, and cognitive-bias glossary for grounded UX assessments of DeFi protocols.

Records and scores prospective equity earnings predictions made by AI agents, allowing comparison of different agent configurations.

Paper-trade crypto spot, futures, and prediction markets on CoinRithm with a user-minted API key. Simulated funds only; includes 21 MCP tools and Agent Arena performance tracking.

Enables interaction with the ChartMogul API to manage subscription data, customer relationships, and sales CRM activities. It allows users to retrieve key business metrics like MRR and churn while performing data operations on plans, invoices, and contacts.

Provides 14 read-only tools to query USDD stablecoin protocol data across TRON, Ethereum, and BSC, enabling AI agents to fetch supply, APY, collateral, and vault configurations.

Official reference MCP server for A202, the Verifiable Agreement Protocol for Agent-Led Commerce. Gives an agent the seven capabilities two organisations need to buy and sell directly: issue a mandate, check what an agent may do under it, approve an act needing a person, form an agreement, exchange obligations, verify a record by replay, and read the transaction record back.

Provides real-time stock market data and company search functionality for the Colombo Stock Exchange (CSE). It enables AI assistants to retrieve current prices, change percentages, and ticker information for Sri Lankan listed companies.

Enables AI agents to issue, correct, and register legally compliant Spanish electronic invoices with AEAT VeriFactu, supporting F1/F2 types, R1–R5 correctives, and NIF validation from Claude, ChatGPT, Cursor, or VS Code.

Local Ethereum wallet for AI agents — read balances and history, request payments that a human approves by password in the app popup, and fetch x402-paywalled resources with USDC on Base. Keys are encrypted on-device and never leave your Mac.

Model Context Protocol (MCP) server for United Arab Emirates Electronic Invoicing (PINT AE / Peppol 5-Corner Model). Provides tools to validate, generate, and explore API specifications for FTA / Peppol interoperability.

Enables AI assistants to search car inventory, estimate import taxes (ISV) and resale values, and request quotes from Clara Carros, a Portuguese used and imported cars marketplace.

The official crypto yield data MCP server: native Claude access to live and historical crypto lending, savings, staking, borrowing, stablecoin, price, coin metadata, and market data.

MCP server for the Tradallo Verified Record Protocol — query cryptographically-verified human and AI-agent trading reputations (track records, agent version history, paginated UTRs, on-chain Solana memo notarization). Every response is JCS-canonicalized + ed25519-verified locally before returning.

MCP server for Crypto APIs Blockchain Fees product, providing fee recommendations and gas estimates for UTXO, EVM, and XRP blockchains.

Read-only MCP server for Gryps venue state, enabling Claude to query live markets, fee schedules, funding parameters, and open interest.