Marketplace · API · x402

chain.openverbs.com/v1/bytecode

Fetch deployed EVM contract runtime bytecode and its Keccak-256 code hash to fingerprint or compare contracts, or feed a disassembler. Supports Ethereum, Base, Arbitrum, Optimism and Polygon, with optional historical block reads. Returns full hex code, byte size and isContract; an empty-code address returns 0x and a null hash. Key-free RPC with endpoint fallback; code capped at 256 KiB.

Endpoint	`https://chain.openverbs.com/v1/bytecode`
Trust	✓ Verified callable · 100% uptime over 1 checks · ~893 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	0xb3f4de103F34b99f0Da19B4F16D6B53a14C2194A
method	POST
last updated	2026-10-28T22:55:51.836Z

Use it

Call it (an x402 client pays automatically)

curl -i https://chain.openverbs.com/v1/bytecode
# 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-e03af8dae34e8227

Search the whole marketplace from your agent (MCP)

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