Service metadata, supported chains & live sample

Code snippets

curl "https://api.oanor.com/bytecode-api/v1/meta" \
  -H "x-oanor-key: oanor_test_..."

await fetch("https://api.oanor.com/bytecode-api/v1/meta", {
  headers: { "x-oanor-key": "oanor_test_..." }
});

$ch = curl_init("https://api.oanor.com/bytecode-api/v1/meta");
curl_setopt($ch, CURLOPT_HTTPHEADER, ["x-oanor-key: oanor_test_..."]);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
$out = curl_exec($ch);

import requests
requests.get(
    "https://api.oanor.com/bytecode-api/v1/meta",
    headers={"x-oanor-key": "oanor_test_..."}
)

Example response

A real response from this endpoint, captured by the latest health check.

{
    "data": {
        "chains": [
            "ethereum",
            "base",
            "arbitrum",
            "optimism",
            "bsc",
            "polygon",
            "avalanche",
            "gnosis",
            "fantom",
            "linea",
            "scroll",
            "blast"
        ],
        "sample": {
            "chain": "ethereum",
            "selectors_found": 5
        },
        "source": "public JSON-RPC nodes (publicnode.com) via eth_getCode; EVM disassembly computed locally",
        "service": "bytecode-api",
        "endpoints": {
            "GET /v1/meta": "This document.",
            "GET /v1/bytecode": "Deployed runtime bytecode of a contract (chain, address).",
            "GET /v1/selectors": "4-byte function selectors from the contract dispatcher (chain, address).",
            "GET /v1/disassemble": "Full opcode disassembly, paged (chain, address, limit, offset)."
        },
        "description": "Fetch any contract's deployed EVM bytecode live via public JSON-RPC, disassemble it into opcodes, and extract its 4-byte function selectors — works on verified AND unverified contracts. The reverse-engineering layer for auditors, MEV searchers and security tools. Live, short cache only.",
        "upstream_status": "ok"
    },
    "meta": {
        "timestamp": "2026-06-14T08:04:12.463Z",
        "request_id": "9294c2c6-a8b7-43f7-9002-c6778cfa2107"
    },
    "status": "ok",
    "message": "Meta",
    "success": true
}