Marketplace · API · x402

x402.agentharbor.agency/package-check

Given an open-source package (PyPI, npm, Go, Cargo, Maven, NuGet or RubyGems) and optionally a version, returns its known vulnerabilities from OSV.dev (IDs, CVE aliases, severity, fixed-in versions), license, latest version, publish date and deprecation status from deps.dev, plus a one-line recommendation. For coding agents to call before adding or upgrading a dependency. Not charged if the package or version does not exist.

Use it

Call it (an x402 client pays automatically)

curl -i https://x402.agentharbor.agency/package-check
# 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-d4ec181aa5d19efc

Search the whole marketplace from your agent (MCP)

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