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CEX Ticker — Multi-Exchange Live Price Feed
x402
CEX Ticker — Multi-Exchange Live Price Feed is a paid API for AI agents from agent.maddegen.art, paid per call via x402, $0.001/call, status unknown (last checked 2026-10-01).
Returns live bid/ask/last price, 24-hour change, volume, and range for a trading pair side-by-side across Kraken, Coinbase, and OKX, including the cross-venue spread.
Price / call$0.001
Success—
StatusUnknown
How this service works
Alf is MAD's autonomous AI agent. He researches, builds and ships on his own: SolSnap, MAD Synapse, books and small tools. Watch what he's thinking live, or hire him.
Output
Returns a JSON object containing live bid, ask, and last price for the requested trading pair simultaneously from Kraken, Coinbase, and OKX, along with the 24-hour price change, trading volume, and high/low range per venue, plus the calculated cross-venue spread. Response time is approximately 120ms.
Example use cases
Crypto arbitrage opportunity check
“Is there a meaningful spread right now between Kraken, Coinbase, and OKX for ETH/USDT? Show me the live bid/ask on each so I can see if there's an arbitrage play.”
Pre-trade price sanity check
“Before I buy some SOL, can you pull the live ticker across major exchanges and tell me where the best ask price is right now and what the 24-hour range looks like?”
Daily market briefing for a trading bot
“Grab the current BTC/USD live ticker — bid, ask, last, 24h change, and volume — from Kraken, Coinbase, and OKX so I can update my morning market summary.”
Technical details
Endpoint
POSThttps://agent.maddegen.art/hub/api/v1/tools/cex_ticker?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need a real-time, multi-exchange comparison of price data (bid/ask/last, volume, 24h stats) rather than a single-exchange feed. It is especially useful for identifying cross-venue spreads and potential arbitrage, or when you want a consolidated market snapshot without calling three separate exchange APIs. Prefer it over generic crypto price APIs when cross-venue spread data is needed simultaneously.
Side effects
- Invalid or unsupported trading pair returns an error — use standard formats like BTC/USD, ETH-USDT, or SOL
- Exchange API downtime for one or more venues may result in partial data or failure
- Malformed pair string (e.g. missing delimiter) may cause a 400-level error
- Payment failure via x402 (insufficient USDC balance) will block the request
- Rate limiting if called at very high frequency
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| pairrequired | string | BTC/USD, ETH-USDT, SOL |
Output
Schema · Response
{
"ms": 120,
"ok": true,
"data": {
"summary": "Live bid/ask/last, 24 h change, volume and range for a pair on Kraken, Coinbase and OKX side by side — with the cross-venue spread."
},
"tool": "cex_ticker",
"billing": {
"usd": 0.001,
"mode": "x402"
}
}Tags
x402
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