# claw402 CoinMarketCap MCP Data Endpoint

> claw402 CoinMarketCap MCP Data Endpoint is a paid API for AI agents from claw402.ai, paid per call via x402, $0.015/call, status unknown (last checked 2026-09-15).

Fetches cryptocurrency market data from CoinMarketCap via a pay-per-call x402 USDC gateway, no API key required

## Facts

- Endpoint: GET https://claw402.ai/api/v1/crypto/cmc/mcp
- Price: $0.015/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/claw402-coinmarketcap-mcp-data-endpoint-9d5bfda6
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_0G6Zg8spDCHi6yzhegcRx

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 claw402-coinmarketcap-mcp-data-endpoint-9d5bfda6
```

Example prompt: Can you pull me the latest CoinMarketCap market data for Bitcoin and Ethereum — just pay the $0.015 USDC fee per call from my wallet, no API key needed.

## When to prefer this

Choose this endpoint when you need CoinMarketCap market data without registering for an API key or managing credentials — ideal for agents that can pay in USDC via the x402 protocol and want frictionless, pay-per-call crypto market lookups at $0.015 per request.

## Known failure modes

- Payment not received or insufficient USDC balance — 402 Payment Required response
- Invalid or malformed properties parameter — returns empty data array
- CoinMarketCap upstream API unavailable — propagated error in code field
- Wallet not configured or x402 protocol not supported by client — payment handshake fails
- Rate limiting from upstream CMC — delayed or empty response

## How this service works

Backed by vergex.trade. Pay for any API with USDC. No API keys. No registration. Just a wallet.

## Output

Returns a JSON object with a status code (code: 0 for success) and a data array containing CoinMarketCap market data such as coin listings, prices, market caps, or rankings depending on the properties queried.

## Request schema (JSON Schema)

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

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "code": 0,
  "data": []
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/claw402-coinmarketcap-mcp-data-endpoint-9d5bfda6/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from claw402.ai](https://www.zero.xyz/host/claw402.ai/llms.txt)