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Forest Gas Station – npm/PyPI Package Preflight
x402
Forest Gas Station – npm/PyPI Package Preflight is a paid API for AI agents from http--forest-gas-station-mainnet--lcjl27p8lmjs.code.run, paid per call via x402, $0.002/call, status unknown (last checked 2026-10-02).
Validates and normalizes metadata for a specific npm or PyPI package (and optional version), returning existence, version resolution, staleness, deprecation/yank state, license, and runtime requirements.
Price / call$0.002
Success—
StatusUnknown
How this service works
Normalize npm or PyPI package reality: existence, requested-version existence, resolved/latest version, staleness, deprecation/yank state when available, license and runtime requirement. No dependency graph or vulnerability analysis. Public registries only; unsupported provider fields are null. Base mainnet USDC
Output
Returns a normalized object indicating whether the package exists on the registry, whether the requested version exists and/or resolves to a specific version, the latest available version, whether the package or version is deprecated or yanked, its license identifier, and any runtime requirement (e.g. Python version or Node engine). Fields for unsupported registries or unavailable metadata are null. No dependency graph or vulnerability data is included.
Example use cases
Dependency health check before install
“Before I add 'requests' version '2.28.0' from PyPI to my project, can you verify it exists, check if it's been yanked or deprecated, and tell me what Python runtime it requires?”
Detect stale npm dependency in project
“I have 'express' version '4.17.1' listed as a dependency — can you check the npm registry to see if it's still current or if there's a much newer version out, and whether it's been deprecated?”
License compliance check for open source audit
“We're auditing our dependencies — can you look up the license for the PyPI package 'flask' at its latest resolved version so I can confirm it's allowed under our internal policy?”
Technical details
Endpoint
POSThttps://http--forest-gas-station-mainnet--lcjl27p8lmjs.code.run/package/preflight?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need a fast, normalized sanity check on a single npm or PyPI package — confirming it exists, whether a specific version is valid or yanked, its current license, and runtime requirements — without needing dependency graph traversal, vulnerability scanning, or private registry access. It is ideal for preflight checks before adding a dependency, auditing a lock file entry, or verifying freshness of a pinned version.
Side effects
- Package not found on the specified registry — existence flag is false, other fields are null
- Version not found — package exists but the specified version does not
- Ecosystem not supported or field is missing — request rejected with validation error
- Registry API timeout or upstream unavailability — may return an error or partial null fields
- Malformed package name or version string exceeding length limits — validation error
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| package | string | Public package name to inspect. |
| version | string | Package version whose public metadata should be checked. |
| ecosystem | — | Public ecosystem value used to scope this lookup. |
Tags
x402
Reviews
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