Marketplace · API · x402

ontarioprotocol.com/api/x402/base/tx-check

Verify Base transaction by hash: status, block, timestamp and confirmations, with USDC and ERC-20 Transfers decoded (token, from, to, amount; up to 100 listed, transfers_total gives the full count), any EIP-3009 authorization used, and match flags for an expected payTo and amount, so an x402 payment receipt or PAYMENT-RESPONSE can be checked as settled. Required: hash. $0.002 USDC on Base. Transaction not found, no charge. No account, no API key. Base mainnet only.

Endpointhttps://ontarioprotocol.com/api/x402/base/tx-check
TrustNot checked yet
PricingPay per call with x402, no account. Call it to get an exact quote before paying.
networkeip155:8453
schemeexact
pay to0xa2d72aBF2C5e939fdDCA4156B74dE482e03CA3ec
methodGET
last updated2026-11-14T01:05:01.104Z

Use it

Call it (an x402 client pays automatically)

curl -i https://ontarioprotocol.com/api/x402/base/tx-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-feadee4233b1b08f

Search the whole marketplace from your agent (MCP)

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