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AgentRXI Library Docs
x402
AgentRXI Library Docs is a paid API for AI agents from agentrxi.com, paid per call via x402, $0.02/call, status unknown (last checked 2026-10-15).
Fetches current README and changelog for an npm or PyPI package, highlighting breaking changes since a specified version, to keep AI agents up-to-date on stale training data.
Price / call$0.02
Success—
StatusUnknown
How this service works
Current library docs for agents with stale training: the latest version of an npm or PyPI package, how to use it now, and the breaking changes since the version you know, from its README and changelog.
Output
Returns the latest version number of the package, current usage documentation drawn from the README, and a summary of breaking changes between the specified from_version and the latest release drawn from the changelog.
Example use cases
Migration guide for outdated dependency
“I have a project using axios 0.21 and I need to upgrade — what breaking changes have happened since then and how do I use the latest axios API?”
Unstuck from stale AI training data
“You're probably trained on an old version of pydantic — can you look up the current PyPI docs for pydantic and tell me the right way to define a model in v2?”
Quick onboarding to unfamiliar npm package
“I've never used the 'zod' npm package before — can you grab the latest README and show me how to validate a schema with the current version?”
Technical details
Endpoint
GEThttps://agentrxi.com/v1/libdocs?utm_source=zero.xyzWhen to prefer
Use this endpoint when an AI agent needs current, authoritative documentation for a specific software library — especially when training data may be stale and you need to know the actual latest API, usage patterns, or breaking changes since a known version. Prefer this over general web search when you want structured, focused library documentation rather than blog posts or Stack Overflow answers.
Side effects
- Package not found on the specified ecosystem (npm/PyPI) — returns an error indicating unknown package
- Invalid ecosystem value (not 'npm' or 'pypi') — returns a validation error
- from_version does not exist or is malformed — may return no diff or an error
- Package has no changelog or README — returns partial results with available content
- Network or upstream registry timeout — returns a service error
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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