Marketplace · API · x402

x402.pkgproof.net/v1/verify

Call before an agent runs npm install or pip install. Checks one npm or PyPI package against the registry, OSV advisories, install scripts, typosquat and combosquat names and repository provenance, and flags hallucinated or slopsquatted names. Answers safe, caution, block or does_not_exist; every reason is sourced and labelled fact or heuristic.

Endpoint	`https://x402.pkgproof.net/v1/verify`
Trust	100% uptime over 1 checks · ~621 ms
Pricing	Pay per call with x402, no account. Call it to get an exact quote before paying.
network	eip155:8453
scheme	exact
pay to	0xB1fe0fd90C16800C3D5e811c6f07972dE9d2b98E
method	POST
last updated	2026-11-12T02:19:45.509Z

Use it

Call it (an x402 client pays automatically)

curl -i https://x402.pkgproof.net/v1/verify
# 402 reply -> sign PAYMENT-REQUIRED with an x402 client (e.g. @x402/fetch) -> retry with PAYMENT-SIGNATURE

This listing as JSON

curl https://aipaygen.com/v1/catalog/api/x402-e3843a197d9e832c

Search the whole marketplace from your agent (MCP)

{
  "mcpServers": {
    "aipaygen": {
      "url": "https://aipaygen.com/mcp"
    }
  }
}