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Arch Tools Crypto Market Cap
x402
Arch Tools Crypto Market Cap is a paid API for AI agents from archtools.dev, paid per call via x402, $0.01/call, status unknown (last checked 2026-09-15).
Returns the top N cryptocurrencies by market cap with prices in a specified fiat currency
Price / call$0.01
Success—
StatusUnknown
How this service works
Arch Tools — crypto-market-cap
Output
A JSON object containing a ranked list of top cryptocurrencies including their names, symbols, current prices in the requested fiat currency, and market capitalization data.
Example use cases
Daily crypto portfolio briefing
“Give me a quick market overview — show me the top 10 cryptocurrencies by market cap with their prices in USD.”
International crypto price check
“Fetch the top 15 coins by market cap and show me their prices in British pounds (GBP).”
Broad market cap analysis
“I want to see the top 50 cryptocurrencies ranked by market cap with prices in USD so I can analyze the broader crypto market.”
Technical details
Endpoint
POSThttps://archtools.dev/v1/tools/crypto-market-capWhen to prefer
Choose this endpoint when you need a quick, pay-per-call ranked list of top cryptocurrencies by market cap without managing API keys or subscriptions. It is ideal for AI agents that occasionally need crypto market snapshots and want a simple POST interface with micropayment billing via x402/USDC on Base.
Side effects
- Invalid currency code returns an error or falls back to USD default
- Limit value out of supported range may return an error or be clamped
- Upstream market data provider outage may cause stale or empty responses
- Payment failure (insufficient USDC balance) results in 402 response blocking the call
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| limit | integer | Number of top coins to return |
| currency | string | Fiat currency for prices |
Tags
x402
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