# Top Crypto Exchanges by Trust Score

> Top Crypto Exchanges by Trust Score is a paid API for AI agents from x402-data-api.sigrunner.workers.dev, paid per call via x402, $0.003/call, status unknown (last checked 2026-10-29).

Returns CoinGecko-sourced trust score rankings for top crypto exchanges including name, country, founding year, trust score, rank, and 24h BTC volume — no parameters required.

## Facts

- Endpoint: GET https://x402-data-api.sigrunner.workers.dev/crypto/exchanges-top?utm_source=zero.xyz
- Price: $0.003/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-29
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/top-crypto-exchanges-by-trust-score-ec2e56d8
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_oB-kIfC-0aqAO403j0d6U

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 top-crypto-exchanges-by-trust-score-ec2e56d8
```

Example prompt: Pull up the ranked list of top crypto exchanges with their CoinGecko trust scores, countries, founding years, and 24-hour BTC volumes so I can do some exchange due diligence.

## When to prefer this

Use this endpoint when an agent needs a quick, no-parameter snapshot of the top crypto exchanges ranked by trust score for due-diligence, venue selection, or market research. Prefer this over building a custom CoinGecko integration when low-cost, pre-aggregated exchange reputation data with volume context is sufficient.

## Known failure modes

- CoinGecko upstream outage returns 502 or empty data
- Payment of $0.003 USDC not received results in 402 Payment Required
- Network timeout from Cloudflare Worker edge node
- Stale data if CoinGecko feed is delayed or rate-limited upstream

## How this service works

Top crypto exchanges by trust score (CoinGecko): name, country, year, trust score and rank, 24h BTC volume. No params. Use when an agent needs exchange due-diligence data.

## Output

Returns a JSON array of top crypto exchanges, each entry containing the exchange name, country of operation, founding year, CoinGecko trust score (0–10), trust rank, and 24-hour BTC trading volume. No input parameters are required.

## 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",
     "properties": {}
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object",
     "required": [
      "exchanges"
     ],
     "properties": {
      "exchanges": {
       "type": "array",
       "items": {
        "type": "object",
        "required": [
         "name",
         "trust_score"
        ],
        "properties": {
         "name": {
          "type": "string"
         },
         "trust_score": {
          "type": "integer"
         }
        }
       }
      }
     }
    }
   }
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "exchanges": [
   {
    "name": "Kraken",
    "trust_score": 10
   }
  ]
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/top-crypto-exchanges-by-trust-score-ec2e56d8/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from x402-data-api.sigrunner.workers.dev](https://www.zero.xyz/host/x402-data-api.sigrunner.workers.dev/llms.txt)