Tools / Library Docs

Resolve Library

Search for a library by name and return its Context7-compatible library ID along with metadata like trust score, available versions, and snippet count. Always call this first to get the ID needed by get_docs.

Returns: List of matching libraries with Context7 IDs, trust scores, available versions, and documentation coverage

Parameters

library_name *stringLibrary or framework name to search for (e.g. "react", "next.js", "prisma", "tailwindcss")

querystringOptional natural language context to help rank results (e.g. "React hooks for state management")

Example

Find the library ID for React

curl -H "Authorization: Bearer $TOOLROUTER_API_KEY" \
  -d '{
  "tool": "library-docs",
  "skill": "resolve_library",
  "input": {
    "library_name": "react"
  }
}' \
  https://api.toolrouter.com/v1/tools/call

Get Documentation

Fetch up-to-date documentation and code examples for a library using its Context7-compatible ID. Returns relevant snippets ranked by the query. Use after resolve_library to get the library ID.

Returns: Markdown documentation and code examples relevant to the query, ranked by relevance

Parameters

library_id *stringContext7-compatible library ID in format "/owner/repo", "/owner/repo/version", or "/owner/repo@version" — obtained from resolve_library

query *stringNatural language question or topic to fetch relevant documentation for (e.g. "how to use useEffect", "server actions")

tokensnumberMaximum tokens of documentation to retrieve (default: 5000, increase for more context)

topicstringOptional focused topic filter to narrow results (e.g. "hooks", "routing", "authentication")

Example

Get React hooks documentation

curl -H "Authorization: Bearer $TOOLROUTER_API_KEY" \
  -d '{
  "tool": "library-docs",
  "skill": "get_docs",
  "input": {
    "library_id": "/facebook/react",
    "query": "how to use useEffect",
    "topic": "hooks"
  }
}' \
  https://api.toolrouter.com/v1/tools/call

Quick Start

MCP (Claude Code)

claude mcp add --transport stdio \
  --env TOOLROUTER_API_KEY=YOUR_API_KEY \
  toolrouter -- npx -y toolrouter-mcp

REST API

curl -H "Authorization: Bearer $TOOLROUTER_API_KEY" \
  -d '{"tool":"library-docs","skill":"resolve_library","input":{}}' \
  https://api.toolrouter.com/v1/tools/call