PyPI Package Info

Get a Python package's details from PyPI: version, dependencies, supported Python versions, release history and licence.

Pay by wallet (x402) pypi-package-info

Example

Input

{
  "package": "requests"
}

Answer

{
  "name": "requests",
  "author": "Kenneth Reitz",
  "license": "Apache Software License",
  "summary": "Python HTTP for Humans.",
  "version": "2.32.5",
  "homepage": "https://requests.readthedocs.io",
  "keywords": [],
  "package_url": "https://pypi.org/project/requests/",
  "dependencies": [
    "charset_normalizer<4,>=2",
    "idna<4,>=2.5",
    "urllib3<3,>=1.21.1",
    "certifi>=2017.4.17",
    "PySocks!=1.5.7,>=1.5.6; extra == \"socks\"",
    "chardet<6,>=3.0.2; extra == \"use-chardet-on-py3\""
  ],
  "project_urls": {
    "Source": "https://github.com/psf/requests",
    "Homepage": "https://requests.readthedocs.io",
    "Documentation": "https://requests.readthedocs.io"
  },
  "total_releases": 157,
  "python_versions": [
    "3",
    "Only",
    "3.10",
    "3.11",
    "3.12",
    "3.13",
    "3.14",
    "3.9",
    "CPython",
    "PyPy"
  ],
  "recent_releases": [
    {
      "version": "2.9.2",
      "upload_date": "2016-04-29T21:57:23.021820Z",
      "python_requires": null
    },
    {
      "version": "2.9.1",
      "upload_date": "2015-12-21T14:55:10.646407Z",
      "python_requires": null
    },
    {
      "version": "2.9.0",
      "upload_date": "2015-12-15T15:30:34.276097Z",
      "python_requires": null
    },
    {
      "version": "2.8.1",
      "upload_date": "2015-10-13T12:56:41.375848Z",
      "python_requires": null
    },
    {
      "version": "2.8.0",
      "upload_date": "2015-10-06T14:47:57.677398Z",
      "python_requires": null
    },
    {
      "version": "2.7.0",
      "upload_date": "2015-05-03T15:01:28.821871Z",
      "python_requires": null
    },
    {
      "version": "2.6.2",
      "upload_date": "2015-04-23T16:30:52.318157Z",
      "python_requires": null
    },
    {
      "version": "2.6.1",
      "upload_date": "2015-04-23T02:27:04.893535Z",
      "python_requires": null
    },
    {
      "version": "2.6.0",
      "upload_date": "2015-03-14T16:44:37.146829Z",
      "python_requires": null
    },
    {
      "version": "2.5.3",
      "upload_date": "2015-02-24T16:33:49.703522Z",
      "python_requires": null
    }
  ],
  "requires_python": ">=3.9",
  "description_content_type": "text/markdown"
}

Inputs

Field	Type	Required	What it is
`package`	string	Yes	—

Output fields

How reliably each field appears in a successful answer.

Field	Type	Appears
`name`	string	Always (present in every successful answer)
`summary`	string	Always (present in every successful answer)
`version`	string	Always (present in every successful answer)
`dependencies`	array	Always (present in every successful answer)
`recent_releases`	array	Always (present in every successful answer)

How to call it

The same tool through each route. MCP clients reach it through Strale’s server at https://api.strale.io/mcp; the call below is what the agent sends.

# Needs an API key. max_price_cents caps what this call may cost.
curl -X POST https://api.strale.io/v1/do \
  -H "Authorization: Bearer $STRALE_API_KEY" \
  -H 'Content-Type: application/json' \
  -d '{
    "capability_slug": "pypi-package-info",
    "inputs": {
      "package": "requests"
    },
    "max_price_cents": 5
  }'

{
  "tool": "strale_execute",
  "arguments": {
    "slug": "pypi-package-info",
    "inputs": {
      "package": "requests"
    },
    "max_price_cents": 5
  }
}

import { Strale } from "straleio";

const strale = new Strale({ apiKey: process.env.STRALE_API_KEY! });
const result = await strale.do({
  capability_slug: "pypi-package-info",
  inputs: {
    "package": "requests"
  },
  max_price_cents: 5,
});

import os
from straleio import Strale, DoRequest

strale = Strale(api_key=os.environ["STRALE_API_KEY"])
result = strale.do(DoRequest(
    capability_slug="pypi-package-info",
    inputs={
        "package": "requests",
    },
    max_price_cents=5,
))

# No account. The first request answers 402 with the price in USDC;
# an x402 client pays it from your wallet and repeats the request.
curl -i 'https://api.strale.io/x402/v2/pypi-package-info?package=requests'

Limitations

Private packages and alternative indexes are excluded
Queries the public PyPI registry — private packages and packages hosted on alternative indexes (e.g., Artifactory) are not accessible
What to do instead: For private packages, query your organisation's Python package index directly

Related tools

GitHub Repo Comparison €0.05
npm Package Info €0.05