{
 "id": "5876fef8fd87",
 "url": "https://agent402.tools/api/mev-builder-share",
 "host": "agent402.tools",
 "method": "POST",
 "type": "http",
 "x402Version": 2,
 "scheme": "exact",
 "network": "eip155:8453",
 "net": "base",
 "testnet": false,
 "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
 "price_atomic": "2000",
 "price_usd": 0.002,
 "band": "under-1c",
 "payTo": "0xaBF4FAbd7c416fB67202E5f9002389Fc75e2a9D0",
 "networks": [
  "eip155:8453",
  "eip155:137",
  "eip155:42161",
  "eip155:143",
  "eip155:43114",
  "eip155:1329",
  "eip155:10",
  "eip155:4663",
  "eip155:42220",
  "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
  "stellar:pubnet"
 ],
 "description": "Builder market share aggregated over the last N MEV-Boost blocks via the Flashbots relay. Returns per-builder block count, share percent, total ETH paid to proposers, and average per block. Use to track block-builder concentration or detect a new builder gaining share.",
 "serviceName": "MEV builder share",
 "tags": [
  "crypto",
  "mev",
  "flashbots",
  "builder-share",
  "concentration"
 ],
 "mimeType": null,
 "iconUrl": "https://res.cloudinary.com/bdb-prod/image/upload/c_fill,ar_1:1,w_256,h_256,f_auto,q_auto/v1788138502/bazaar-icons/478aced8e219894c.png",
 "bazaar": {
  "info": {
   "input": {
    "body": {
     "window": 100
    },
    "bodyType": "json",
    "method": "POST",
    "type": "http"
   },
   "output": {
    "type": "json",
    "example": {
     "builders": [
      {
       "avgEthPerBlock": 0.082305,
       "blocks": 42,
       "builderPubkey": "0x9000...",
       "builderShort": "0x90000000…abcdef",
       "sharePct": 42,
       "totalEthToProposers": 3.456789
      }
     ],
     "relay": "flashbots",
     "uniqueBuilders": 5,
     "windowBlocks": 100
    }
   }
  },
  "has_schema": true
 },
 "quality": {
  "calls30": 2,
  "payers30": 1,
  "lastCalledAt": "2026-09-22T11:47:01.998Z"
 },
 "catalogs": [
  {
   "name": "cdp",
   "lastUpdated": "2026-09-30T20:44:30.488Z",
   "seen_at": "2026-09-30T23:10:40.669Z"
  },
  {
   "name": "payai",
   "lastUpdated": "2026-07-01T05:22:59.753Z",
   "seen_at": "2026-09-30T23:10:40.669Z"
  }
 ],
 "catalog_names": [
  "cdp",
  "payai"
 ],
 "first_seen_catalog": "2026-07-01T05:22:59.753Z",
 "last_updated_catalog": "2026-09-30T20:44:30.488Z",
 "first_seen": "2026-09-30",
 "templated": false,
 "category": "crypto-data",
 "probe": {
  "at": "2026-09-30T23:39:02.725Z",
  "head_status": 402,
  "get_status": 402,
  "is_402": true,
  "status": "live",
  "body_json": true,
  "has_accepts": true,
  "accepts_count": 12,
  "accepts0": {
   "scheme": "exact",
   "network": "eip155:8453",
   "amount": "2000",
   "payTo": "0xaBF4FAbd7c416fB67202E5f9002389Fc75e2a9D0",
   "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
   "maxTimeoutSeconds": 300,
   "extra": {
    "name": "USD Coin",
    "version": "2"
   }
  },
  "price_matches_catalog": true,
  "payto_matches_catalog": true,
  "x402Version": 2,
  "has_bazaar_ext": true,
  "has_payment_required_header": false,
  "mpp_header": "Payment id=\"l6-ZK73sfWCVy0uEKMJMOw45ZmE6",
  "channel": "body",
  "content_type": "application/json",
  "latency_ms": 3245,
  "error": null,
  "cors": "*",
  "ratelimit_headers": false,
  "server": "railway-hikari",
  "error_text": "Payment required",
  "resource_url_in_402": "https://agent402.tools/api/mev-builder-share"
 },
 "onchain": {
  "resolved": true,
  "source": "forensics-2026-09-30",
  "payers": 120,
  "payments": 1253,
  "usd": 12.287524,
  "median_usd": 0.003,
  "first": "2026-06-18T00:26:59.000000Z",
  "last": "2026-09-30T22:30:07.000000Z",
  "sampler_share": 0.618,
  "non_sampler_payers": 2,
  "is_contract": true,
  "name": "EIP7702StatelessDeleGator"
 },
 "status": "live",
 "valid_402": true,
 "dead": false,
 "verdict": "live",
 "live_reprobe": null,
 "featured": null,
 "page": "https://bazaar.agentexchange.work/r/5876fef8fd87",
 "seller": "https://bazaar.agentexchange.work/seller/agent402.tools",
 "seller_json": "https://bazaar.agentexchange.work/seller/agent402.tools.json",
 "paid": {
  "probe_now": {
   "url": "https://bazaar.agentexchange.work/r/5876fef8fd87/probe.json",
   "price_usd": 0.01,
   "protocol": "x402"
  },
  "feature": {
   "url": "https://bazaar.agentexchange.work/featured",
   "method": "POST",
   "body": {
    "id": "5876fef8fd87"
   },
   "price_usd": 1,
   "protocol": "x402"
  }
 },
 "license": "CC BY 4.0"
}