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relay402 NPM Package Check
x402
relay402 NPM Package Check is a paid API for AI agents from relay402.georgespring.workers.dev, paid per call via x402, $0.01/call, status unknown (last checked 2026-09-14).
Checks an npm package name for security risk signals, returning a risk score, risk level, and supporting metadata — pay-per-call via USDC on Base, no API key required.
Price / call$0.01
Success—
StatusUnknown
How this service works
Typosquat and quality signals for an npm package before installing it: weekly downloads, latest version, license, deprecation notice, repository link, and computed risk flags (low_downloads, deprecated, no_repository, no_license, not_found). A package with 12 weekly downloads pretending to be a popular library is the classic supply-chain attack on coding agents. Pairs with the package-vulns endpoint for CVE checks.
Output
Returns a risk score (numeric), risk level (e.g. low/medium/high), and supporting package metadata and security signals for the queried npm package name.
Example use cases
Pre-install dependency security check
“Before I install 'axios' as a dependency in my project, can you check its npm security risk score and tell me if there are any red flags I should know about?”
Vetting an unfamiliar open-source package
“I found this npm package called 'colors2fast' and I've never heard of it — can you run a security check on it and give me a risk level before I trust it in my build pipeline?”
Automated agent supply-chain guard
“My agent is about to install 'node-fetch' — can you verify it's not a risky or malicious npm package and confirm the risk score is acceptable before proceeding?”
Technical details
Endpoint
GEThttps://relay402.georgespring.workers.dev/api/npm-package-checkWhen to prefer
Choose this endpoint when an AI agent or autonomous workflow needs to programmatically vet an npm package for security risk without managing API keys or subscriptions — payment is the authentication via USDC on Base (x402 protocol). Ideal for supply-chain security checks embedded in CI/CD agents or coding assistants.
Side effects
- Invalid package name format returns a 400 error
- Package not found on npm registry returns an error or null result
- Payment not included or insufficient causes a 402 Payment Required response
- Network or upstream registry timeout may return a 5xx error
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object |
Tags
x402
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