Check for Breaking Changes Before Upgrading
Pull current documentation to understand what changed in a new library version before upgrading.
Look Up Package Documentation
Fetch current documentation for any npm package without leaving your development environment.
Quick answer: Use the Library Docs tool through ToolRouter to look up package documentation directly from Claude, ChatGPT, Microsoft Copilot, and OpenClaw — connect once, then drive it with plain-language prompts. No code required.
ToolSwitching to a browser to look up an API method, check a configuration option, or find the correct import path breaks the development flow more than it should. The documentation is often scattered across a README, separate docs sites, and version-specific changelogs, making it slow to find the specific answer you need.
The resolve_library and get_docs skills pull documentation for any npm package on demand — resolve the library by name, then retrieve the relevant documentation section. You get accurate, version-aware content from the canonical source rather than a cached training data answer that may be outdated.
Developers integrating new packages, engineers checking if a method signature has changed between versions, and teams onboarding to unfamiliar libraries all use this to stay in context rather than tab-switching to documentation sites.
How to look up package documentation with Claude, ChatGPT, Microsoft Copilot, and OpenClaw
Connect ToolRouter
1Open connector settings Open Settings
2Add a custom connector with these details
Name
ToolRouterURL
https://api.toolrouter.com/mcp3Let Claude set you up Open Claude
Claude fetches live documentation and immediately applies it to your question — it does not just return the raw docs but answers your specific question using current content. You get a practical explanation rather than a raw reference paste.
How to look up package documentation
Once connected (see setup above), use the Library Docs tool — the same steps work with Claude, ChatGPT, Microsoft Copilot, OpenClaw, and any MCP client:
- Ask: "Get the documentation for the axios package"
- Claude resolves the library and retrieves the relevant docs
- Ask a specific question: "What are the available config options for an axios instance?"
- Claude answers using current documentation content
Example prompt
Try this with the Library Docs tool
Look up the current documentation for the zod library and show me how to define a schema that validates an email address and a number between 1 and 100.
Tips
- Ask about a specific method or feature rather than requesting the full docs
- Specify the version if you are working with a specific release rather than the latest
- Ask Claude to compare docs across two versions to understand what changed
Frequently Asked Questions
How do I look up package documentation with an AI assistant?
Fetch current documentation for any npm package without leaving your development environment. Connect the Library Docs tool to Claude, ChatGPT, Microsoft Copilot, and OpenClaw through ToolRouter, then ask the assistant in plain language. For example: Ask: "Get the documentation for the axios package" Claude resolves the library and retrieves the relevant docs
Which AI assistants can look up package documentation?
Claude, ChatGPT, Microsoft Copilot, and OpenClaw can all look up package documentation using the Library Docs tool through ToolRouter, with no API keys or coding required.
What does the Library Docs tool do?
Pull current documentation for any npm package or open-source library on demand.
Related Use Cases
Generate Integration Code from Current Docs
Pull live library documentation and generate working integration code grounded in the current API.