Marketplace · API · x402

sendcheck-x402.pennyforge.workers.dev/check

SendCheck: pre-send verification of any EVM address on one chain (EIP-55 checksum, wallet-vs-contract, outgoing activity, balances, verdict). POST {address, chain}

Endpointhttps://sendcheck-x402.pennyforge.workers.dev/check
Trust100% uptime over 1 checks · ~95 ms
PricingPay per call with x402, no account. Call it to get an exact quote before paying.
networkeip155:8453
schemeexact
pay to0x9504A5939AB5be2B2B1F8beA7D7ebeCcd96c485D
methodPOST
last updated2026-11-04T04:04:02.045Z

Use it

Call it (an x402 client pays automatically)

curl -i https://sendcheck-x402.pennyforge.workers.dev/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-b258adfbf0e79212

Search the whole marketplace from your agent (MCP)

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

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