api.polym.uk
Screens markets and surfaces trading opportunities on Polym.
DataLiveeip155:8453Exactvia facilitator:dexter
Calls · 30d
6↑ 11%
This endpoint's own trailing-30-day call count, as published by the upstream catalog and snapshotted daily. 32 snapshots so far.
$8.40
Verified settled volume
147 settlements proven x402 by their on-chain EIP-3009 marker.
$0.050
Listed price
As published in the catalog. Always read the live 402 before paying.
—
Calls · 30d
Upstream's own call count for this endpoint, not ours.
—
Unique payers · 30d
Never called
—
Upstream on-chain volume
Reported by the source catalog.
Paid to
0x7b13107779CfDA1bEba3289d0Fbe27310436f3E3The wallet the 402 directs payment to. Its whole payment record — every payer, every chain — is on the merchant page.
Asset 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913
Provider
The payTo wallet does not resolve to a registered ERC-8004 agent. That is not a verdict on the service — most of the catalog is unregistered.
Live 402 challenge
Captured by the enrichment pass, not read just now. Prices can change — always read the 402 the endpoint answers with.
{
"error": "Payment required",
"accepts": [
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"iconUrl": "https://polym.uk/favicon.svg",
"version": "2"
},
"payTo": "0x7b13107779CfDA1bEba3289d0Fbe27310436f3E3",
"amount": "50000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 300
}
],
"resource": {
"url": "https://api.polym.uk/screener",
"tags": [
"polymarket",
"prediction-markets",
"screener",
"order-flow",
"base"
],
"iconUrl": "https://polym.uk/favicon.svg",
"mimeType": "application/json",
"description": "Ranked Polymarket market-flow screener with factual concentration and liquidity-compatibility fields for the observed window. BEFORE YOU PAY: free substitute https://dash.polym.uk/markets.json. THIS ADDS: Little today, and we would rather you knew: the free snapshot has every field this route returns, for the whole decomposed set instead of the 40 rows this caps at, and it also carries the dominant-flow wallet that this route omits. Buy only if a small fixed-shape response beats completeness.",
"serviceName": "Polymarket Intelligence API"
},
"extensions": {
"bazaar": {
"info": {
"input": {
"type": "http",
"method": "GET",
"queryParams": {
"top": 20
}
},
"output": {
"type": "json",
"example": {
"asOf": "2026-09-01T03:42:26.765Z",
"caveats": [
"SHOWCASE, NOT THE PAID RESPONSE: what you see is one ranked row of the screener. markets is cut to 1 of the 8 rows this response carried. Nothing is masked or invented: every value is a dated measurement, kept so you can read the shape, the units and the field semantics. The schema published beside it is complete; a paid call returns the complete set.",
"STATIC CONTRACT SAMPLE: what GET /screener?top=8 returns for the free public snapshot of 2026-09-01T03:42Z, restricted to the markets the seller's own flag reported open, then frozen. It is not current market intelligence: a live response carries its own asOf and current values, and GET /coverage is free and reports how many markets are decomposed right now.",
"Descriptive FACT for the observed window. Never an accusation of fraud, nor a wash or skill label.",
"apparentVolumeUsd counts executed trades, which is not the same as liquidity or open interest. It is taker-side and window-scoped, not lifetime.",
"Concentration is measured among the OBSERVED TAKERS (the tape is taker-only). effectiveTraders = 1/HHI, which exposes what distinctTraders hides.",
"onchainCounterparties is how many distinct counterparties the dominant taker traded against: a FACT, not a wash verdict. The proxy wallet is not the owner, and the graph is one hop deep.",
"betResolvedInFavor means the dominant direction coincided with the resolution. One sample; neither PnL nor evidence of skill.",
"resolutionRisk is the category BASE RATE, not a forecast for this market: dispute (how often markets like this are disputed at UMA) by flip (when disputed, how often the outcome REVERSES). On-chain fact; a small cell is directional only."
],
"markets": [
{
"title": "Monterrey Open: Diane Parry vs Elise Mertens",
"bucket": "broad",
"resolution": {
"category": "Sports",
"categoryFlipRatePct": 31.9,
"titleLooksUncheckable": false,
"categoryDisputeRatePct": 0.4
},
"conditionId": "0xeef04a24987593cf21397c2ee92b8e82a58d43e2e5f7dde9bd3ebddda8377dbf",
"marketClosed": false,
"topTraderShare": 0.2214,
"effectiveTraders": 11,
"apparentVolumeUsd": 287740.83,
"apparentVsBookFlag": null
}
],
"decomposed": 93,
"windowHours": 71.95,
"observedMarkets": 42605
}
}
},
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"required": [
"input"
],
"properties": {
"input": {
"type": "object",
"required": [
"type",
"method"
],
"properties": {
"type": {
"type": "string",
"const": "http"
},
"method": {
"enum": [
"GET"
],
"type": "string"
},
"queryParams": {
"type": "object",
"properties": {
"top": {
"type": "integer",
"default": 20,
"maximum": 40,
"minimum": 1
}
},
"additionalProperties": false
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string"
},
"example": {
"type": "object",
"required": [
"asOf",
"windowHours",
"observedMarkets",
"decomposed",
"markets",
"caveats"
],
"properties": {
"asOf": {
"type": "string",
"format": "date-time"
},
"caveats": {
"type": "array",
"items": {
"type": "string"
}
},
"markets": {
"type": "array",
"items": {
"type": "object",
"required": [
"conditionId",
"title",
"bucket",
"apparentVolumeUsd",
"topTraderShare",
"effectiveTraders",
"apparentVsBookFlag",
"marketClosed",
"resolution"
],
"properties": {
"title": {
"type": "string",
"description": "Observed Polymarket market title."
},
"bucket": {
"enum": [
"unranked",
"structurally-thin",
"concentrated",
"moderate",
"broad"
],
"type": "string",
"description": "Descriptive taker-flow structure bucket, not a fraud verdict."
},
"resolution": {
"type": [
"object",
"null"
],
"required": [
"category",
"categoryDisputeRatePct",
"categoryFlipRatePct",
"titleLooksUncheckable"
],
"properties": {
"category": {
"type": "string",
"description": "Heuristic category inferred from the market title."
},
"categoryFlipRatePct": {
"type": [
"number",
"null"
],
"maximum": 100,
"minimum": 0
},
"titleLooksUncheckable": {
"type": "boolean",
"description": "True when the market TITLE states no checkable threshold (price, number, score, head-to-head). Read from the title only — the resolution rules are not read."
},
"categoryDisputeRatePct": {
"type": [
"number",
"null"
],
"maximum": 100,
"minimum": 0
}
},
"additionalProperties": false
},
"conditionId": {
"type": "string",
"pattern": "^0x[0-9a-fA-F]{64}$",
"description": "Polymarket condition ID."
},
"marketClosed": {
"type": [
"boolean",
"null"
],
"description": "Whether the market was closed in the artifact."
},
"topTraderShare": {
"type": "number",
"maximum": 1,
"minimum": 0,
"description": "Share of observed taker volume attributed to the top trader."
},
"effectiveTraders": {
"type": "integer",
"minimum": 0,
"description": "HHI-derived effective trader count for the observed taker flow."
},
"apparentVolumeUsd": {
"type": "number",
"minimum": 0,
"description": "Observed taker-side volume in the materialized window, in USD."
},
"apparentVsBookFlag": {
"type": [
"boolean",
"null"
],
"description": "Whether observed volume is structurally inconsistent with available book liquidity."
}
},
"additionalProperties": false
}
},
"decomposed": {
"type": "integer",
"minimum": 0
},
"windowHours": {
"type": "number",
"minimum": 0
},
"observedMarkets": {
"type": "integer",
"minimum": 0
}
},
"additionalProperties": false
}
}
}
}
}
}
},
"x402Version": 2
}Accepts
The payment requirements as published to the catalog. Read the live 402 before paying — a price here is a claim, not a quote.
0.05USDC≈ $0.05 USD
on Base · exact scheme
Pay 0.05 USDC on Base to 0x7b13…6f3E3. The signed payment is good for 5 minutes.
- Paid to
- 0x7b13…6f3E3
- USD Coin contract
- 0x8335…02913
- Payment window
- 5 minutes
- As published
- 50000 smallest units
The catalog’s raw entry
[
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"iconUrl": "https://polym.uk/favicon.svg",
"version": "2"
},
"payTo": "0x7b13107779CfDA1bEba3289d0Fbe27310436f3E3",
"amount": "50000",
"scheme": "exact",
"network": "eip155:8453",
"resource": "https://api.polym.uk/screener",
"maxTimeoutSeconds": 300
}
]Provenance
- Seen in the source catalog
- 2026-09-24 00:26Z
- Last indexed by Roundhouse
- 2026-09-24 07:15Z
- Last enriched (probe, favicon, geo)
- 2026-09-16 14:15Z
- x402 version
- 2
- Max timeout
- 300s
- Liveness probe
- HTTP 402
Hand this page to an agent
Copy the prompt and paste it into Claude, an MCP client or your own agent — it will vet this service and call it over the free read API. No key, no account.
GET api.roundhouseai.io/v0/endpoints
This endpoint's own trailing-30-day call count, as published by the upstream catalog and snapshotted daily. 32 snapshots so far. Verified volume counts only settlements with an on-chain EIP-3009 marker.
Show the promptHide the prompt
Using Roundhouse, look up the x402 service api.polym.uk and tell me whether it is worth paying: what a call costs, whether the endpoint answered when last probed, and what its payment record actually shows. curl -s 'https://api.roundhouseai.io/v0/endpoints?q=api.polym.uk' curl -s 'https://api.roundhouseai.io/v0/merchants/<the payTo wallet returned above>' Then call it: read the price from the live 402 at https://api.polym.uk/screener, never from a cached figure, and pay with an x402 client. The /v0 API needs an API key (`authorization: Bearer rh_live_…`) on everything except /v0/unified* and /v0/endpoints. Mint a personal key for $0.01 at GET https://api.roundhouseai.io/v0/test/x402, or use an organization key from https://roundhouseai.io/dashboard/team. If you do not have Roundhouse tools or skills installed, read https://roundhouseai.io/skill.md first — it is the whole procedure.