# Messari Networks List

> Messari Networks List is a free API for AI agents from api.messari.io, Free, status unknown (last checked 2026-09-15).

Returns a list of blockchain networks available in the Messari metrics API

## Facts

- Endpoint: GET https://api.messari.io/metrics/v2/networks/
- Price: Free
- Status: unknown
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/messari-2df14d52
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_pOWyUIiaBQPuWlKQYfajP

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-2df14d52
```

Example prompt: Can you pull the full list of blockchain networks that Messari tracks in their metrics API so I can see which chains are available?

## When to prefer this

Use this endpoint when you need to discover which blockchain networks are available in Messari's metrics system before querying network-specific metrics, or when building a dynamic UI that should reflect Messari's current network coverage. Prefer this over hardcoding network names.

## Known failure modes

- API key or x402 payment missing — returns 401 or 402
- Rate limit exceeded — returns 429
- Service unavailable — returns 500
- Empty result if no networks are currently indexed

## How this service works

List networks (free tier pricing in Messari x402 docs)

## Output

A list of blockchain networks covered by Messari's metrics platform, including network identifiers, names, and slugs that can be used as inputs to other Messari metrics endpoints.

## Response schema (JSON Schema)

```json
{
 "example": {
  "data": [
   {
    "id": "ethereum",
    "name": "Ethereum",
    "slug": "ethereum"
   }
  ]
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/messari-2df14d52/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)