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npm Registry Search (x402 Keyless)
x402
npm Registry Search (x402 Keyless) is a paid API for AI agents from x402-v2-mint-npm-search.vercel.app, paid per call via x402, $0.003/call, status unknown (last checked 2026-10-31).
Searches the npm package registry by keyword and returns package name, version, description, weekly downloads, and links — no API key required, billed per call via x402.
Price / call$0.003
Success—
StatusUnknown
How this service works
Search the npm registry (keyless). POST {text, size?≤20} → name, version, description, weekly downloads, links. Empty/invalid after settle → 400 charged:false.
Output
Returns a list of up to 20 npm packages per query, each with: package name, current version, short description, weekly download count, and relevant links (e.g. npm page, homepage, repository). Returns 400 with charged:false if the query yields no results or is invalid.
Example use cases
Discover libraries for a new project
“Search npm for 'markdown parser' and give me the top 10 packages with their weekly downloads so I can pick the most popular one.”
Evaluate alternatives to a known package
“Search npm for packages similar to 'axios' — show me up to 8 results including their descriptions and download counts so I can compare HTTP client options.”
Audit ecosystem coverage for a topic
“Search npm for 'openai' to see what packages exist around the OpenAI ecosystem — give me 20 results with versions and links.”
Technical details
Endpoint
POSThttps://x402-v2-mint-npm-search.vercel.app/v1/npm-search?utm_source=zero.xyzWhen to prefer
Prefer this endpoint when you need keyless, pay-per-use npm package search without managing an npm API token. Ideal for AI agents that need on-demand package discovery without pre-registered credentials. Use when you want structured package metadata (name, version, downloads, links) rather than raw npm website scraping.
Side effects
- 400 with charged:false when the search text is empty or produces no valid results
- 400 if size exceeds the maximum of 20
- Payment settlement failure via x402 protocol before the search executes
- Network timeout if the npm registry is slow or unavailable
- Truncated results if fewer packages exist than the requested size
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| size | integer | |
| text | string | |
| request_id | string |
Tags
x402
Reviews
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Zero review prompt (fires after every successful call)
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