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dep.halowerk.com Deprecation Check
x402
dep.halowerk.com Deprecation Check is a paid API for AI agents from dep.halowerk.com, paid per call via x402, $0.003/call, status unknown (last checked 2026-10-14).
Checks whether a package in npm, PyPI, crates.io, or Maven Central is deprecated, yanked, or removed, returning registry metadata with source and age disclosure.
Price / call$0.003
Success—
StatusUnknown
How this service works
Checks current registry metadata for deprecated, yanked or removed releases. Missing facts are returned as null and named in unavailable_fields where applicable. Derived values disclose their method; source-backed values disclose source, time window and age.
Output
Returns current registry metadata indicating whether the package is deprecated, yanked, or removed. Missing facts are returned as null with field names listed in unavailable_fields. Source-backed values include their source, time window, and data age; derived values disclose their derivation method.
Example use cases
Auditing dependencies before release
“Before we ship this release, can you check if 'log4j' on Maven is deprecated or removed from the registry?”
CI pipeline dependency safety gate
“In our build pipeline, check whether the PyPI package 'pycrypto' has been yanked or deprecated so we can block the build if it has.”
Vetting a new open source dependency
“I'm thinking of using the crates.io crate 'rustls' — can you confirm it hasn't been deprecated, yanked, or removed from the registry?”
Technical details
Endpoint
POSThttps://dep.halowerk.com/v1/deprecation-check?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need a definitive, source-backed answer on whether a specific package is deprecated, yanked, or removed from its registry. It is preferable to general package metadata endpoints when the specific concern is package withdrawal status, and better than manual registry inspection when you need machine-readable results with data provenance. It supports npm, PyPI, crates.io, and Maven Central in a single API.
Side effects
- Package name not found in the specified ecosystem — fields returned as null
- Unsupported ecosystem value — validation error returned
- Registry temporarily unavailable — partial or null response with unavailable_fields populated
- Malformed request (missing name or ecosystem) — 400-level error
- Payment not completed — 402 response blocking access
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| name | string | |
| ecosystem | string |
Tags
x402
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