Call before adding or upgrading a dependency: package-registry metadata for one package (PyPI or npm): latest version, summary, license, dependency count; PyPI also returns 30-day downloads.
package_metadataPAID $0.010000 USDC via x402. Call before adding or upgrading a dependency: package-registry metadata for one package (PyPI or npm): latest version, summary, license, dependency count; PyPI also returns 30-day downloads.
Input Schema
TableJSON Schema
| Name | Required | Description | Default |
|---|---|---|---|
| name | No | Package name (default requests pypi / express npm). | |
| payment | No | Base64 x402 payment header (PAYMENT-SIGNATURE v2, or legacy X-PAYMENT v1). Omit to receive the 402 payment requirement. | |
| ecosystem | No | pypi or npm (default pypi). |