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minia2a.uk Polymarket Quote (poly-quote)
x402
minia2a.uk Polymarket Quote (poly-quote) is a paid API for AI agents from minia2a.uk, paid per call via x402, $0.1/call, status unknown (last checked 2026-11-01).
Fetches a normalized, aggregated Polymarket market quote — prices, bid/ask spread, order book depth, volume, liquidity, and open interest — from three upstream sources (Gamma, CLOB, Data API v2) in a single call.
Price / call$0.1
Success—
StatusUnknown
How this service works
One normalized read of a Polymarket market across three upstreams — Gamma (outcome prices, best bid/ask, spread, 24h volume, liquidity, tick size), CLOB (the top three order-book levels on each side, correct end of the book) and Data API v2 (open interest). Returns age_seconds so staleness is visible, and never places orders. Pass `market` as a slug or 0x… conditionId; add `token` to pick a specific outcome's book.
Output
Returns a single normalized JSON object combining data from three Polymarket upstreams: outcome prices, best bid/ask, spread, 24h volume, liquidity, tick size (from Gamma); top 3 order book levels on each side (from CLOB); open interest (from Data API v2); plus age_seconds indicating how stale the data is. No orders are placed.
Example use cases
Check prediction market price before trading
“What's the current best bid and ask for the Polymarket market 'will-trump-win-2024' and how liquid is it? Show me the spread and 24h volume too.”
Monitor order book depth for a specific outcome
“Give me the top 3 order book levels on both the buy and sell side for the 'yes' outcome token on the Polymarket market with conditionId 0x1234abc — I want to see if there's enough depth to fill a decent order.”
Aggregate open interest and staleness check
“Fetch the open interest and data age for the Polymarket market slug 'bitcoin-above-100k-end-of-2025' — I need to know how fresh the numbers are before I use them in my model.”
Technical details
Endpoint
GEThttps://minia2a.uk/x402/poly-quote?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need a single, aggregated Polymarket market quote that spans price data, order book depth, and open interest from all three official Polymarket upstreams simultaneously — avoiding the need to call Gamma, CLOB, and Data API v2 separately and reconcile them yourself. Especially useful for agents that need staleness visibility (age_seconds) without building their own multi-source polling logic. Not suitable for placing orders.
Side effects
- Invalid or unknown market slug returns an error — ensure the slug matches exactly as listed on Polymarket
- Invalid conditionId format (not a valid 0x… hex string) causes a parsing error
- Unknown token identifier for the specified market returns empty book data
- Upstream APIs (Gamma, CLOB, Data API v2) may be temporarily unavailable, resulting in partial or stale data
- Payment not provided or insufficient (requires 0.1 USDC via x402) results in a 402 Payment Required response
- High age_seconds value indicates one or more upstream sources are lagging
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"type": "json",
"example": {
"ok": true,
"result": {
"count": 1,
"depth": {
"token": "32338220190071351435772801779725302244575775216413325951443816017994629993401",
"asksTop3": [
{
"size": 2735.3,
"price": 0.021
},
{
"size": 947.48,
"price": 0.022
},
{
"size": 798.31,
"price": 0.023
}
],
"bidsTop3": [
{
"size": 27804.91,
"price": 0.02
},
{
"size": 23161.52,
"price": 0.019
},
{
"size": 12856.08,
"price": 0.018
}
]
},
"query": "xi-jinping-out-before-2027",
"quote": {
"slug": "xi-jinping-out-before-2027",
"active": true,
"closed": false,
"prices": [
0.0205,
0.9795
],
"spread": 0.001,
"bestAsk": 0.021,
"bestBid": 0.02,
"endDate": "2027-01-01T04:59:00Z",
"outcomes": [
"Yes",
"No"
],
"question": "Xi Jinping out before 2027?",
"tickSize": 0.001,
"liquidity": 330664.45057,
"volume24h": 119547.547702,
"conditionId": "0xa467b14d51f01b957109d9cbb1d6c124fab2a089d52ed8f471d23c2812e743b7",
"clobTokenIds": [
"32338220190071351435772801779725302244575775216413325951443816017994629993401",
"25659310674993675562345759665114759892400026242514633218387667107987341231962"
],
"openInterest": 4700006.934028
},
"cached": false,
"source": {
"oi": "https://data-api.polymarket.com/v2/oi",
"clob": "https://clob.polymarket.com",
"gamma": "https://gamma-api.polymarket.com"
},
"noMatch": false,
"age_seconds": 0,
"depthWarning": null,
"openInterestWarning": null
}
}
}Tags
x402
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