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Polkadot Bid-Ask Spread Check
x402
Polkadot Bid-Ask Spread Check is a paid API for AI agents from market.datapackvibe.com, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-02).
Calculates the latest absolute and percentage bid-ask spread for Polkadot (DOT-USD) using Coinbase Exchange public market data.
Price / call$0.01
Success—
StatusUnknown
How this service works
Polkadot Bid-ask spread check: Calculate the latest absolute and percentage bid-ask spread. Coinbase Exchange public USD market data; not investment advice.
Output
Returns the current best bid price, best ask price, absolute spread (ask minus bid in USD), and percentage spread (spread relative to mid-price) for the DOT-USD pair sourced from Coinbase Exchange public market data.
Example use cases
Pre-trade slippage assessment
“Before I put in a buy order for DOT, can you check what the current bid-ask spread looks like for DOT-USD on Coinbase? I want to know how wide the spread is in both dollar and percentage terms.”
Market liquidity monitoring alert
“I'm watching the Polkadot market — can you pull the current DOT-USD bid-ask spread so I can see how liquid the market is right now?”
Arbitrage opportunity evaluation
“Can you check the DOT-USD spread on Coinbase for me? I need the absolute and percentage spread to figure out if there's a viable arbitrage window.”
Technical details
Endpoint
POSThttps://market.datapackvibe.com/x402/demand-market-polkadot-spread-check?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you specifically need real-time bid-ask spread data for Polkadot (DOT) denominated in USD from Coinbase Exchange. It is ideal for pre-trade analysis, liquidity checks, and slippage estimation when trading DOT. Prefer this over general price endpoints when the spread width (not just price) is the key metric.
Side effects
- Invalid product ID returns an error — only valid Coinbase USD product IDs are accepted
- Coinbase API unavailability may cause stale or missing data
- Market closed or illiquid conditions may result in unusual spread values
- Malformed request body may return a validation error
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| product | string | Coinbase USD product ID; defaults to DOT-USD. |
Tags
x402
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