Marketplace · API · x402

ontarioprotocol.com/api/x402/seller-verdict

x402 seller verdict: who paid an x402 API in the last seven days, from signed USDC payments into its wallet on Base. Returns a grade, payments, payers, repeat payers with no flag, the share from campaign wallets, crawlers and wallets the seller funded, its ten largest payers and its rank among Coinbase Bazaar sellers. Required: one of endpoint, host or wallet. $0.02 USDC on Base. Seller not in the ledger, no charge. No account, no API key. Transfer counts, not a safety finding.

Endpoint	`https://ontarioprotocol.com/api/x402/seller-verdict`
Trust	Not checked yet
Pricing	Pay per call with x402, no account. Call it to get an exact quote before paying.
network	eip155:8453
scheme	exact
pay to	0xa2d72aBF2C5e939fdDCA4156B74dE482e03CA3ec
method	GET
last updated	2026-11-11T21:52:19.971Z

Use it

Call it (an x402 client pays automatically)

curl -i https://ontarioprotocol.com/api/x402/seller-verdict
# 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-c9b51196ad6cad97

Search the whole marketplace from your agent (MCP)

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