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PyPI Package Lookup
x402
PyPI Package Lookup is a paid API for AI agents from the-stall.intuitek.ai, paid per call via x402, $0.034/call, status unknown (last checked 2026-09-14).
Fetches metadata for a Python package from PyPI, including version, author, license, dependencies, and classifiers.
Price / call$0.034
Success—
StatusUnknown
How this service works
Python package metadata from PyPI. Returns latest version, summary, author, license, Python version requirement, install dependencies, release date, and download URLs. Also supports fetching a specific version. Use before integrating a Python library: check if it's actively maintained, what license it uses, and whether it's compatible with your Python version. Free upstream: PyPI JSON API (no key, no rate limit for normal use).
Output
A JSON object containing the package's name, current version, author and email, license, summary description, required Python version, list of dependencies (requires_dist), all available versions, classifiers, PyPI URL, project URL, and latest upload timestamp.
Example use cases
Example prompt
“Can you look up the PyPI metadata for the 'anthropic' package — I want to know the latest version, its license, what Python versions it supports, and its dependencies.”
Technical details
Endpoint
GEThttps://the-stall.intuitek.ai/cap/pypi-lookupWhen to prefer
Use this endpoint when you need structured PyPI package metadata programmatically — especially when you need version lists, dependency trees, license info, or classifier data without scraping the PyPI website. Prefer over raw PyPI JSON API access when operating in an x402 pay-per-call agent context with no API key management.
Side effects
- Package name not found on PyPI — returns error or empty result
- Requested specific version does not exist — version not in all_versions list
- Typo in package name returns no results
- Network or upstream PyPI API unavailability causes timeout
- Payment failure (insufficient USDC balance) prevents request from completing
Input
{
"input": {
"type": "http",
"method": "GET",
"queryParams": {
"package": "requests"
}
}
}Schema · Request body
| Field | Type | Description |
|---|---|---|
| required | string | |
| properties | string |
Output
{
"ts": "2026-06-12T05:08:53.603Z",
"name": "requests",
"author": "Kenneth Reitz <me@kennethreitz.org>",
"license": "Apache-2.0",
"summary": "Python HTTP for Humans.",
"version": "2.34.2",
"keywords": null,
"pypi_url": "https://pypi.org/project/requests/",
"home_page": null,
"classifiers": [
"Development Status :: 5 - Production/Stable",
"Environment :: Web Environment",
"Intended Audience :: Developers",
"License :: OSI Approved :: Apache Software License",
"Natural Language :: English",
"Operating System :: OS Independent",
"Programming Language :: Python",
"Programming Language :: Python :: 3",
"Programming Language :: Python :: 3 :: Only",
"Programming Language :: Python :: 3.10",
"Programming Language :: Python :: 3.11",
"Programming Language :: Python :: 3.12",
"Programming Language :: Python :: 3.13",
"Programming Language :: Python :: 3.14",
"Programming Language :: Python :: 3.15",
"Programming Language :: Python :: Free Threading :: 2 - Beta",
"Programming Language :: Python :: Implementation :: CPython",
"Programming Language :: Python :: Implementation :: PyPy",
"Topic :: Internet :: WWW/HTTP",
"Topic :: Software Development :: Libraries"
],
"project_url": "https://github.com/psf/requests",
"all_versions": [
"2.9.2",
"2.9.1",
"2.9.0",
"2.8.1",
"2.8.0",
"2.7.0",
"2.6.2",
"2.6.1",
"2.6.0",
"2.5.3",
"2.5.2",
"2.5.1",
"2.5.0",
"2.4.3",
"2.4.2",
"2.4.1",
"2.4.0",
"2.34.2",
"2.34.1",
"2.34.0.dev1"
],
"author_email": "Kenneth Reitz <me@kennethreitz.org>",
"latest_upload": "2026-05-14T19:25:27",
"requires_dist": [
"charset_normalizer<4,>=2",
"idna<4,>=2.5",
"urllib3<3,>=1.26",
"certifi>=2023.5.7",
"PySocks!=1.5.7,>=1.5.6; extra == \"socks\"",
"chardet<8,>=3.0.2; extra == \"use-chardet-on-py3\""
],
"requires_python": ">=3.10"
}Tags
x402
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