Marketplace · API · x402

x402-data-api.sigrunner.workers.dev/chain/code

Contract-code check for a Base mainnet address (is_contract + code size + EIP-7702 delegated-EOA detection). Use when an agent must check whether a Base address is a contract or an EOA before interacting.

Endpointhttps://x402-data-api.sigrunner.workers.dev/chain/code
Trust✓ Verified callable · 100% uptime over 1 checks · ~148 ms
PricingPay per call with x402, no account. Call it to get an exact quote before paying.
networkeip155:8453
schemeexact
pay to0x5765ae06a52dc7A0BB71c36A11db512c7ea9ed10
methodGET
last updated2026-11-11T05:17:15.245Z

Use it

Call it (an x402 client pays automatically)

curl -i https://x402-data-api.sigrunner.workers.dev/chain/code
# 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/x402-40e894923d5cc364

Search the whole marketplace from your agent (MCP)

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

Related