# Messari Exchange Metrics API

> Messari Exchange Metrics API is a paid API for AI agents from api.messari.io, paid per call via x402, $0.35/call, status unknown (last checked 2026-09-15).

Retrieves spot volume, futures volume, and open interest metrics across cryptocurrency exchanges.

## Facts

- Endpoint: GET https://api.messari.io/metrics/v1/exchanges/metrics
- Price: $0.35/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/messari-exchange-metrics-api-a13b3c0c
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_A9NFbQWloJhbRQI28Egaw

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 messari-exchange-metrics-api-a13b3c0c
```

Example prompt: Pull the latest spot volume, futures volume, and open interest metrics across crypto exchanges from Messari so I can see where the most trading activity is happening right now.

## When to prefer this

Use this endpoint when you need aggregated exchange-level trading metrics — specifically spot volume, futures volume, and open interest — across multiple crypto exchanges in a single call. Ideal for institutional analysis, derivatives market monitoring, or comparing exchange liquidity. Prefer this over asset-specific metric endpoints when the focus is on exchange behavior rather than individual token performance.

## Known failure modes

- 402 Payment Required if x402 payment not included or insufficient
- 401 Unauthorized if API key missing
- 429 Rate limit exceeded
- 503 Service unavailable during maintenance
- Empty or stale data if exchange feeds are delayed

## How this service works

Find exchange metrics for spot volume, futures volume, and open interest.

## Output

Returns exchange-level metrics including spot trading volume, futures trading volume, and open interest figures, enabling comparison and analysis of trading activity across cryptocurrency exchanges.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {}
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/messari-exchange-metrics-api-a13b3c0c/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from api.messari.io](https://www.zero.xyz/host/api.messari.io/llms.txt)