Marketplace · API · x402

api.vrsai.tech/v1/capabilities/package_install_preflight

Check an exact npm or PyPI package version immediately before installation using current registry, vulnerability, malicious-package, withdrawal/deprecation, and verified provenance evidence. Returns ALLOW, REVIEW, BLOCK, or UNKNOWN with machine-readable reasons.

Endpoint	`https://api.vrsai.tech/v1/capabilities/package_install_preflight`
Trust	100% uptime over 1 checks · ~390 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	0x6746dFF7bDB1ED4940DBe50024795AD97CbA09Af
method	POST
last updated	2026-11-11T14:54:16.219Z

Use it

Call it (an x402 client pays automatically)

curl -i https://api.vrsai.tech/v1/capabilities/package_install_preflight
# 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-a0a08d3311e920b9

Search the whole marketplace from your agent (MCP)

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