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api2pdf

by io.usefulapi

Merge PDFs (PDFSharp)

api2pdf_merge_pdfs
Destructive

Merge several existing PDFs (given as URLs, in order) into a single PDF. Returns a { FileUrl } (valid ~24h). BILLED. Api2Pdf API: POST /pdfsharp/merge.

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
urlsYesURLs of the PDFs to merge, in the order they should appear (at least two).
inlineNoIf true (Api2Pdf default), the generated file is served inline; if false, as an attachment.
optionsNoEngine-specific render options (page size, margins, orientation, headers/footers, etc.). Passed through verbatim to Api2Pdf.
storageNoCustom storage target, used when useCustomStorage is true.
fileNameNoA name for the generated file, e.g. 'invoice.pdf'.
output_binaryNoIf true, return the raw file bytes as base64 instead of a FileUrl. Default false (recommended for agents — returns a short-lived link).
extraHTTPHeadersNoExtra HTTP headers Api2Pdf forwards when it fetches a source URL (e.g. auth for a protected page/file).
useCustomStorageNoIf true, Api2Pdf uploads the result to your own storage (see `storage`) instead of hosting it.

Schema Changelog

Changes observed during successful MCP inspections. Dates show when Glama detected each change.

  1. First observed

TDQS

A4.2/5.0
Behavior4/5

Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?

Annotations already include destructiveHint=true, and the description does not contradict that. It adds useful behavioral context: returns a { FileUrl } valid ~24h, is billed, and uses the API endpoint POST /pdfsharp/merge. It does not discuss auth or rate limits, but those are secondary given the 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.

Conciseness5/5

Is the description appropriately sized, front-loaded, and free of redundancy?

Three short sentences deliver the core action, input format, output behavior, billing warning, and endpoint with no filler. The most important information is front-loaded.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Completeness4/5

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

There is no output schema, so explicitly stating the return type and 24-hour validity is valuable. The description covers the core call pattern and the schema documents all remaining parameters. It lacks error-behavior or side-effect clarification, but the essential information for a successful call is present.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Parameters3/5

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

Schema description coverage is 100%, and all parameters already have individual descriptions. The tool description mostly reinforces the urls behavior ('given as URLs, in order') and describes the result rather than adding substantial new parameter-level meaning. Baseline 3 is appropriate.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Purpose5/5

Does the description clearly state what the tool does and how it differs from similar tools?

The description names a specific operation ('Merge'), a specific resource ('several existing PDFs'), and adds ordering and URL constraints. It clearly distinguishes this from sibling tools like extract_pages or compress_pdf, and the API endpoint further removes ambiguity.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Usage Guidelines4/5

Does the description explain when to use this tool, when not to, or what alternatives exist?

The description gives clear input requirements ('given as URLs, in order') and explains the output format and billing implication. It does not explicitly name alternatives or state when not to use this tool, but the context is specific enough to guide an agent.

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.

All api2pdf toolsInspect
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TDQS

A4.3/5.0
Disambiguation5/5

Each tool targets a distinct operation: conversions, PDF manipulations, file deletion, and account/service info are clearly separated. Even the three HTML-to-PDF tools are distinguished by source type or rendering engine.

Naming Consistency5/5

All tools follow a consistent api2pdf_ prefix with snake_case verb-based names such as add_password, merge_pdfs, and url_to_pdf. The pattern is predictable and makes it easy to infer what each tool does.

Tool Count4/5

Sixteen tools is slightly above the typical 3-15 range, but the count is justified by the breadth of Api2Pdf's functionality spanning creation, manipulation, conversion, deletion, and account management.

Completeness5/5

The surface covers the full PDF lifecycle: generate from multiple sources, manipulate via merge/extract/compress/password, convert to markdown, delete files, plus billing and status checks. No obvious missing operations for the documented purpose.

Resources