Marketplace · API · x402

x402-niche-briefs.fly.dev/v1/listing-quality-teaser

Scored snapshot of x402 listings from the CDP Bazaar and PayAI catalogs: top 3 most concentrated calls-vs-unique-payers rows (price, payers_per_call, reason, next check), catalog aggregates (risk counts, price spread, host concentration), up to 5 prioritized findings quoting real numbers, quick wins and the scoring rules. Optional ?resource=<url or host> looks up one listing's row and rank. Heuristic, not a finding about any seller. Full list: /v1/listing-quality ($0.01).

Endpointhttps://x402-niche-briefs.fly.dev/v1/listing-quality-teaser
TrustNot checked yet
PricingPay per call with x402, no account. Call it to get an exact quote before paying.
networkeip155:8453
schemeexact
pay to0x847f54ae8dDFD71ed7bC930C1f7a73576FAb03A9
methodGET
last updated2026-11-14T02:18:03.588Z

Use it

Call it (an x402 client pays automatically)

curl -i https://x402-niche-briefs.fly.dev/v1/listing-quality-teaser
# 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/x402-59c810b7f393bbf7

Search the whole marketplace from your agent (MCP)

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