SignalDesk AI – PyPI Release Lookup

x402

SignalDesk AI – PyPI Release Lookup is a paid API for AI agents from x402-agent.kariguetoazul.workers.dev, paid per call via x402, $0.002/call, status unknown (last checked 2026-10-09).

Fetches metadata and file download links for a specific PyPI package version, including file hashes, sizes, upload times, and dependency information.

Price / call$0.002

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StatusUnknown

How this service works

Evidence-backed autonomous AI jobs and paid data tools. Queue/D1/cron run outside the chat; free quotas and bounded execution apply.

Output

Returns a JSON object containing the package name, version, and summary; a list of distribution files each with their URL, filename, size, SHA256 hash, and upload timestamp; the source metadata provenance (provider, fetch time, expiry); project URLs (homepage, docs, source repo); requires_dist dependency strings; and the requires_python version constraint.

Example use cases

Verify package integrity before install

“Can you fetch the SHA256 hash and download URL for the requests 2.32.3 wheel from PyPI so I can verify its integrity before installing it in my pipeline?”

Check Python version compatibility

“What is the minimum Python version required by numpy 1.26.4 according to its PyPI release metadata?”

Audit dependency list for a release

“Pull up the full dependency list for the urllib3 2.2.1 release on PyPI — I need to see everything listed in requires_dist.”

Technical details

Endpoint

GEThttps://x402-agent.kariguetoazul.workers.dev/api/dev/pypi-release?utm_source=zero.xyz

When to prefer

Use this endpoint when you need authoritative, structured PyPI release metadata for a specific package version — especially file hashes, download URLs, and dependency lists — without scraping PyPI directly. Prefer it over pip show or manual PyPI web browsing when you need machine-readable data about a pinned release. Best suited for dependency auditing, supply chain verification, or programmatically resolving download URLs for a known version.

Side effects

Package name not found on PyPI returns an error or empty result
Exact version string does not exist for the package (version mismatch or typo)
Version string fails regex validation (must match ^[A-Za-z0-9.+_-]+$)
PyPI upstream unavailable or rate-limiting causes fetch failure
Cached metadata may be up to 24 hours stale based on expires_at field

Input

Schema · Request body

Field	Type	Description
inputrequired	object
output	object

Output

Schema · Response

{
  "type": "json",
  "example": {
    "files": [
      {
        "url": "https://files.pythonhosted.org/packages/f9/9b/335f9764261e915ed497fcdeb11df5dfd6f7bf257d4a6a2a686d80da4d54/requests-2.32.3-py3-none-any.whl",
        "size": 64928,
        "sha256": "70761cfe03c773ceb22aa2f671b4757976145175cdfca038c02654d061d6dcc6",
        "filename": "requests-2.32.3-py3-none-any.whl",
        "upload_time": "2024-05-29T15:37:47.027275Z"
      },
      {
        "url": "https://files.pythonhosted.org/packages/63/70/2bf7780ad2d390a8d301ad0b550f1581eadbd9a20f896afe06353c2a2913/requests-2.32.3.tar.gz",
        "size": 131218,
        "sha256": "55365417734eb18255590a9ff9eb97e9e1da868d4ccd6402399eaf68af20a760",
        "filename": "requests-2.32.3.tar.gz",
        "upload_time": "2024-05-29T15:37:49.536140Z"
      }
    ],
    "source": {
      "provider": "PyPI public metadata",
      "expires_at": "2026-10-03T09:44:48.710Z",
      "fetched_at": "2026-10-02T09:44:48.710Z",
      "source_url": "https://pypi.org/pypi/requests/2.32.3/json",
      "transformed": true
    },
    "package": "requests",
    "summary": "Python HTTP for Humans.",
    "version": "2.32.3",
    "project_urls": {
      "Source": "https://github.com/psf/requests",
      "Homepage": "https://requests.readthedocs.io",
      "Documentation": "https://requests.readthedocs.io"
    },
    "requires_dist": [
      "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\""
    ],
    "requires_python": ">=3.8"
  }
}

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