# Crypto Exchange Ranking

> Crypto Exchange Ranking is a paid API for AI agents from bess-x402.onrender.com, paid per call via x402, $0.002/call, status unknown (last checked 2026-10-28).

Returns centralized crypto exchanges ranked by trust score or adjusted 24h volume, including name, volume, markets, supported fiat currencies, website, and notices like hacks.

## Facts

- Endpoint: GET https://bess-x402.onrender.com/v1/crypto/exchanges?utm_source=zero.xyz
- Price: $0.002/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-28
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/crypto-exchange-ranking-28336fe2
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_YNCS-O9hM55kjm73S7TTK

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 crypto-exchange-ranking-28336fe2
```

Example prompt: Give me the top 20 centralized crypto exchanges ranked by trust score, including their 24h volume, number of markets, supported fiat currencies, and any hack notices.

## When to prefer this

Use this endpoint when you need a ranked overview of centralized exchanges by trust or volume, want to compare venues before routing a trade, need to check security history of an exchange, or want to identify which platforms support specific fiat currencies. Prefer over manual research or unranked lists.

## Known failure modes

- limit parameter out of range (must be 1–100) returns validation error
- upstream data provider unavailable causes 503 or empty response
- stale data if CoinGecko source is delayed
- no filtering by fiat or region — full list only

## How this service works

Centralized crypto exchanges ranked by trust score or adjusted 24h volume: name, volume, markets, supported fiat currencies, website and notices such as hacks. Use to pick a venue or check one.

## Output

A ranked list of up to 100 centralized crypto exchanges, each including exchange name, trust score, adjusted 24h trading volume, number of markets, supported fiat currencies, official website URL, and any notable notices such as past hacks or security incidents.

## 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",
      "HEAD",
      "DELETE"
     ],
     "type": "string"
    },
    "queryParams": {
     "type": "object",
     "required": [],
     "properties": {
      "limit": {
       "type": "integer",
       "description": "Maximum number of results (1-100)"
      }
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/crypto-exchange-ranking-28336fe2/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from bess-x402.onrender.com](https://www.zero.xyz/host/bess-x402.onrender.com/llms.txt)