Per-market liquidity authenticity + UMA resolution-risk for Polymarket prediction markets, sold to AI trading agents via x402 ($0.20/call, USDC on Base). Returns whether apparent volume is broad/organic or concentrated/manufactured (HHI, effective traders, book cross-check, on-chain counterparties) AND the UMA resolution-risk on two axes: how often a category disputes on UMA x when disputed, how often the result FLIPS the original proposal vs just confirms, plus whether the criterion is objective (checkable) or subjective. Dispute-rate and flip-rate often invert by category - a two-axis read no other tool gives. Fact/base-rate, never a wash verdict nor per-market prediction. Also two /market-authenticity/{conditionId} and /x402-authenticity/{payTo} parameterized endpoints (see /openapi.json).
Pay from $0.20 per request in USDC on Base, settled onchain via the x402 protocol, no signup, no API key needed.
ENDPOINTS
| METHOD | PATH | DESCRIPTION | PRICE | NETWORK | ASSET |
|---|---|---|---|---|---|
| GET | /resolution-risk | UMA resolution-risk landscape by category: dispute base-rate × flip rate (when disputed, does it reverse?) + criterion clarity. Fact/base-rate, not prediction. | $0.20 | Base | USDC |
| GET | /screener | Top Polymarket markets ranked by liquidity-authenticity bucket (fact, per window) | $0.20 | Base | USDC |
| GET | /x402-market | The honest state of the x402 market: real value-matched size vs the hype | $0.20 | Base | USDC |
REQUEST / RESPONSE EXAMPLE
An unpaid request to GET /resolution-risk returns HTTP 402 with the payment terms. Settle onchain via your facilitator, then retry with the X-Payment header.
curl -i 'https://api.x402intel.uk/resolution-risk'
No 402 response body has been captured for this service yet.
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