Marketplace · API · x402

ens-resolver.underscoredone.com/resolve

Look up an ENS name or an Ethereum address and get back the matching one, automatically figuring out which direction you need.

Endpoint	`https://ens-resolver.underscoredone.com/resolve`
Trust	✓ Verified callable · 100% uptime over 1 checks · ~170 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	0xE9740820225B3918b4ddd1292C7cA4Ca0e2C2F08
method	POST
last updated	2026-11-08T13:53:57.025Z

Use it

Call it (an x402 client pays automatically)

curl -i https://ens-resolver.underscoredone.com/resolve
# 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/x402-119b5bea1aa2722a

Search the whole marketplace from your agent (MCP)

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

ENS name lookup (AIPayGen)
API$0.001/call

ens-resolver.underscoredone.com/resolve

Use it

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