# TrollBridge MEV Scan

> TrollBridge MEV Scan is a paid API for AI agents from mini-tollbooth.onrender.com, paid per call via x402, $0.05/call, status unknown (last checked 2026-10-11).

Fetches recent Flashbots relay payloads showing MEV builder activity, extracted ETH value, and gas usage across recent blocks

## Facts

- Endpoint: GET https://mini-tollbooth.onrender.com/mev-scan?utm_source=zero.xyz
- Price: $0.05/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-11
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/trollbridge-mev-scan-d047125c
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_CxtQzXw64alMOyRRQS1XE

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability trollbridge-mev-scan-d047125c
```

Example prompt: Pull the last 50 Flashbots relay payloads and show me which MEV builders are most active, how much ETH they extracted, and how much gas they used.

## When to prefer this

Use this endpoint when you need real-time insight into Flashbots MEV builder activity, want to monitor block-level extraction patterns, or need to assess current MEV pressure on Ethereum. Prefer this over generic blockchain explorers when you specifically want builder competition data, relay payload stats, and extracted ETH value aggregated across recent blocks in a single call.

## Known failure modes

- Invalid limit parameter (outside 1-100 range) returns an error
- Flashbots relay API unavailable causes empty or error response
- limit defaulting to 20 if not specified may not cover desired range
- Payment of $0.05 USDC required per call via x402 protocol; missing payment returns 402

## How this service works

The insurance booth for AI agents, with Mini's Agent Supply Store on the side of the road. One hundred checkpoints: pre-transaction safety lanes (honeypot, approval-risk, rug-score, receipt-check, tx-dryrun, permit-scan, airdrop-verdict, deployer-history, wallet-watch, secret-scan at $0.02 USDC per call; the protection tier — /contract-check, /approval-screen, /tx-plain-english, /honeypot-check, /tx-simulate, /redteam, /skill-scan, /verdict, /egress-audit, /tool-gate, /airlock, /repo-scan, /prove, /task-scope — at $0.10; the one-call /shield don't-get-rugged screen at $0.25; the full /preflight bundle at $0.05), bounty intel (bounties, fresh, verdicts, deadlines, sweepstakes, opportunities) at $0.02 USDC per call, trader intel (/prices and /quant at $0.02; /enrich and /token-check at $0.05; /contract-check and /honeypot-check at $0.10; /sec-facts at $0.05), market intel (/markets and /search at $0.05; /grants at $0.02), DeFi intel (/yields and /new-pairs at $0.05; /gas and /defi at $0.02), AI intel (/models at $0.02), agent-ops intel (/prompt-cost, /model-picks, /rpc-speed, /terms-tldr, /scrape, /gigs, /retry-verify, /idempotency, /verify-independent at $0.02; /site-watch, /wallet-check, /code-run, /regulatory-pack, /sage, /cron-watch, /caveat-check, /tripwire, /escrow, /trust, /bridge-fees, /dao-votes, /dev-activity, /dex-arb, /dydx-perps, /funding-rates, /gas-predict, /hack-tracker, /long-short-ratio, /lp-yields, /mev-scan, /open-interest, /perp-basis, /polymarket-odds, /rwa-watch, /sentiment, /stablecoin-flows, /tokenomics, /top-movers, /whale-watch, and /yield-stable at $0.05; /approval-screen, /tx-plain-english, /tx-simulate, and /task-scope at $0.10; /scam-scan deep scan at $5.00 or 30-day subscription at $30.00), supply store (/road-pack combo meal at $0.05; curated datasets, the /audit-prep pre-audit review, and the /prove-state symbolic-execution run at $1.00; the /audit AI-agent audit at $25.00). Every lane answers before money moves — heuristic verdicts, not audits. Don't get rugged.

## Output

Returns a JSON object with the scanned block count, per-block details (slot, block number, transaction count, gas used, gas limit, extracted ETH value, builder pubkey, proposer fee recipient), aggregate stats (average gas used, total ETH value, distinct builder count), and a plain-English description of the lane.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "GET"
     ],
     "type": "string"
    },
    "queryParams": {
     "type": "object",
     "required": [],
     "properties": {
      "limit": {
       "type": "integer",
       "maximum": 200,
       "minimum": 1,
       "description": "Max items to return. Omit for the full feed."
      }
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "lane": "/mev-scan",
  "count": 3,
  "limit": 3,
  "blocks": [
   {
    "slot": 15375733,
    "num_tx": 212,
    "gas_used": 17585324,
    "gas_limit": 36000000,
    "value_eth": 0.00908,
    "block_number": 23214510,
    "builder_pubkey": "0xb7c5e609f8a0d2ea...",
    "proposer_fee_recipient": "0x..."
   }
  ],
  "avgGasUsed": 17585324,
  "description": "MEV builder activity ($0.05) — recent Flashbots relay payloads: builder, extracted value, gas.",
  "totalValueEth": 0.0263,
  "distinctBuilders": 3
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/trollbridge-mev-scan-d047125c/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from mini-tollbooth.onrender.com](https://www.zero.xyz/host/mini-tollbooth.onrender.com/llms.txt)