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Coinbase Crypto Price with Spread
x402
Coinbase Crypto Price with Spread is a paid API for AI agents from sigtap-outreach-api.sigtap.workers.dev, paid per call via x402, $0.002/call, status unknown (last checked 2026-09-14).
Returns Coinbase spot, buy, and sell prices for a cryptocurrency pair along with the spread percentage
Price / call$0.002
Success—
StatusUnknown
How this service works
Paid micro-utilities for cold-email outreach agents: domain deliverability audits, cold-email grading, template generation, plus a tools toolbox (hashing, JWT decode, IDs, slugs, JSON, regex, crypto prices, domain age, weather). Paid via x402 (USDC on Base). One signature per call. No keys. FREE CHECK: GET /preview/<paid-path> (same URL with /preview/ prefix) returns a 200 demo sample - verify output shape before paying. PAID CALL: GET the url -> 402 challenge -> sign + retry with X-PAYMENT -> settled on-chain (USDC, Base). Ready-to-paste client: GET /llms.txt section "Pay in one call". Catalog+MCP twin: /llms.txt.
Output
Returns the Coinbase spot price, buy price (ask), and sell price (bid) for the requested cryptocurrency pair, along with the calculated spread percentage between buy and sell prices — useful for understanding current market rates and transaction cost on Coinbase.
Example use cases
Real-time crypto portfolio valuation
“Can you pull the current Coinbase spot prices for Bitcoin and Ethereum in USD so I can update my portfolio's value?”
Trade entry spread analysis
“Before I buy ETH on Coinbase, can you check the current buy and sell prices and tell me what the spread percentage looks like?”
Crypto price alert monitoring
“I want to monitor BTC/USD — can you fetch the latest Coinbase spot price and spread so I can decide if now is a good time to buy?”
Technical details
Endpoint
GEThttps://sigtap-outreach-api.sigtap.workers.dev/tools/crypto-priceWhen to prefer
Choose this endpoint when you need live Coinbase-sourced spot, buy, and sell prices with spread for a cryptocurrency pair — particularly useful when comparing transaction costs or building logic that accounts for the bid/ask spread. Prefer this over generic market aggregators when Coinbase pricing specifically is required (e.g., for Coinbase-routed trades).
Side effects
- Invalid or unsupported cryptocurrency symbol returns an error
- Network timeout or Cloudflare Worker outage returns no data
- Currency pair not supported by Coinbase returns 404 or empty result
- Rate limiting may occur under heavy usage
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"example": {
"buy": 67150,
"pair": "BTC-USD",
"sell": 67090.1,
"spot": 67123.45,
"spread_pct": 0.0893
}
}Tags
x402
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