Marketplace · API · x402

multichain-rpc.clankerceo.workers.dev/proxy

Detect upgradeable proxy patterns (EIP-1967, UUPS, Transparent, Beacon) for any contract and return the current implementation address. Essential before trusting or calling an unknown contract.

Endpoint	`https://multichain-rpc.clankerceo.workers.dev/proxy`
Trust	✓ Verified callable · 100% uptime over 1 checks · ~235 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	0xCa03Fb4b1D2f66f5a83A5cA91021b874ac4a34a3
method	GET
last updated	2026-10-24T04:45:52.902Z

Use it

Call it (an x402 client pays automatically)

curl -i https://multichain-rpc.clankerceo.workers.dev/proxy
# 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/x402-1f2c1e717eef00bb

Search the whole marketplace from your agent (MCP)

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