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claw402 Coinank Coin Market Cap
x402
claw402 Coinank Coin Market Cap is a paid API for AI agents from claw402.ai, paid per call via x402, $0.002/call, status unknown (last checked 2026-09-15).
Retrieves cryptocurrency market capitalization data for a specified base coin via a pay-per-call x402 USDC payment gateway
Price / call$0.002
Success—
StatusUnknown
How this service works
Backed by vergex.trade. Pay for any API with USDC. No API keys. No registration. Just a wallet.
Output
A JSON object with a code field (0 for success) and a data array containing market capitalization information for the specified cryptocurrency. The structure is minimal and may include market cap values, rankings, and related coin metrics depending on the baseCoin queried.
Example use cases
Ethereum market cap lookup
“What's the current market capitalization of Ethereum? Pull it from the x402 market cap endpoint and pay with USDC from my wallet — no API key needed.”
Altcoin ranking and size check
“I need to know how large Solana's market cap is right now compared to other top coins. Fetch that data using the pay-per-call USDC gateway — no registration required.”
On-demand crypto portfolio valuation
“For each of the tokens in my portfolio — BTC, ETH, and SOL — grab their current market cap data. Use the x402 USDC micropayment endpoint so we don't need any API credentials.”
Technical details
Endpoint
GEThttps://claw402.ai/api/v1/coinank/coin/market-capWhen to prefer
Choose this endpoint when you need cryptocurrency market cap data without registering for an API key or managing credentials — ideal for lightweight, on-demand lookups paid per-call with USDC via the x402 protocol. Best suited for agents operating in a crypto-native environment with wallet-based micropayment capability.
Side effects
- Payment not received or insufficient USDC balance — returns 402 Payment Required
- Missing or invalid baseCoin query parameter — may return empty data array or error code
- Unknown or unsupported coin symbol — returns empty data array
- Service downtime from vergex.trade backend — returns 5xx error
- Rate limiting or wallet-based throttling — returns 429 Too Many Requests
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"type": "json",
"example": {
"code": 0,
"data": []
}
}Tags
x402
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