code402 / tools / crypto-ticker

Crypto ticker — pay-per-call API

$0.002 per call · 20 free calls/day · no signup · pay with card credits or a signed USDC voucher (x402)

Current spot price (USD) for a symbol via the public CoinGecko API; common tickers (btc, eth, …) are mapped to CoinGecko ids automatically. Cached 60s server-side; preflighted so you never pay during an API outage.

Honest scope: Spot price from the public CoinGecko API, cached 60 s server-side. Not a trading feed.

Try it (first 20 calls/day free)

curl -X POST https://code402.dev/v1/tools/crypto-ticker/call \
  -H "content-type: application/json" \
  -d '{"symbol":"btc"}'

No key needed for the free tier. When the free quota is used up, the API replies HTTP 402 with the exact price — agents sign the x402 voucher and retry; humans buy card credits. Every paid response carries a signed receipt you can verify offline.

Run it in the playground (free)Pay by card — credits, no crypto

Input parameters

FieldTypeMeaning
symbol (required)stringTicker symbol (btc, eth, sol, …) or a CoinGecko asset id (bitcoin, ethereum, …).

Response

Top-level fields: tool, valid, symbol, coingecko_id, price_usd, currency, cached, fetched_at, reason, retryable, scope. Paid responses also carry a signed XDR-1 receipt.

All code402 tools

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Machine-readable catalog: llms-full.txt · MCP manifest · OpenAPI. Operated by JUANA LIMITED (UK Co. No. 14043409). Non-custodial: USDC settles payer→seller directly on Base.