# SiteCheck Resolved Prediction Markets

> SiteCheck Resolved Prediction Markets is a paid API for AI agents from api.sitecheck-api.workers.dev, paid per call via x402, $0.003/call, status unknown (last checked 2026-10-29).

Fetches recently resolved prediction market questions and outcomes from Manifold and Polymarket within a configurable lookback window

## Facts

- Endpoint: GET https://api.sitecheck-api.workers.dev/api/pm/resolved?utm_source=zero.xyz
- Price: $0.003/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-29
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/sitecheck-resolved-prediction-markets-80f2e8bf
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_-u1cucZvn3H7c20sYqONA

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability sitecheck-resolved-prediction-markets-80f2e8bf
```

Example prompt: Pull the prediction markets that resolved in the last 7 days from Manifold and Polymarket — up to 20 results — and filter them to anything about politics.

## When to prefer this

Use this endpoint when you need ground-truth resolution data from multiple prediction market venues in a single call, with optional keyword filtering. Prefer it over scraping individual venue APIs directly when you want aggregated Manifold + Polymarket results with consistent schema, outcome labels, and resolution sources in one response.

## Known failure modes

- Invalid or out-of-range 'days' parameter (must be 1–30) may return an error or empty results
- Limit exceeding 50 will be capped or rejected
- Upstream venue APIs (Manifold, Polymarket) may be temporarily unavailable, surfaced in 'venuesUnavailable' field
- Keyword filter returning zero matches yields empty resolvedMarkets array
- Network timeout from the Cloudflare Worker to upstream sources

## How this service works

Fetches recently resolved prediction markets from Polymarket and Manifold over the last N days (max 30). Includes question, winning outcome, final prices/probabilities, resolution timestamp, and resolution source. Optional keyword filter. Information only, not financial advice.

## Output

Returns a JSON object with a count of resolved markets, the lookback period, source venues checked, a timestamp, and an array of resolved market objects — each containing the market ID, URL, slug, venue name, question text, final outcome prices per outcome, resolution timestamp, winning outcome label, and resolution source URL.

## Request schema (JSON Schema)

```json
{
 "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",
     "required": [
      "days"
     ],
     "properties": {
      "q": {
       "type": "string",
       "description": "Optional keyword filter"
      },
      "days": {
       "type": "string",
       "description": "Lookback window in days (1 to 30)"
      },
      "limit": {
       "type": "string",
       "description": "Maximum resolved markets to return (max 50)"
      }
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "days": 7,
  "count": 20,
  "source": "Manifold (api.manifold.markets), Polymarket (gamma-api.polymarket.com)",
  "checkedAt": "2026-10-15T18:21:04.995Z",
  "disclaimer": "Information only, not financial advice.",
  "venuesChecked": [
   "manifold",
   "polymarket"
  ],
  "resolvedMarkets": [
   {
    "id": "5707681",
    "url": "https://polymarket.com/market/setkameua-revavad-serhyen-2026-10-15",
    "slug": "setkameua-revavad-serhyen-2026-10-15",
    "venue": "polymarket",
    "question": "Reva Vadym vs. Serhyenko Ruslan",
    "finalPrices": [
     {
      "price": 1,
      "outcome": "Reva Vadym"
     },
     {
      "price": 0,
      "outcome": "Serhyenko Ruslan"
     }
    ],
    "resolutionTime": "2026-10-15T18:20:01.000Z",
    "winningOutcome": "Reva Vadym",
    "resolutionSource": "https://setkacup.com"
   },
   {
    "id": "968uRzhPtR",
    "url": "https://manifold.markets/Velaris/will-trump-livestream-an-execution",
    "slug": "will-trump-livestream-an-execution",
    "venue": "manifold",
    "question": "Will Trump livestream an execution?",
    "finalPrices": [
     {
      "price": 0.031,
      "outcome": "YES"
     },
     {
      "price": 0.969,
      "outcome": "NO"
     }
    ],
    "resolutionTime": "2026-10-15T15:59:11.413Z",
    "winningOutcome": "NO",
    "resolutionSource": "Manifold Community Settlement"
   },
   {
    "id": "5693636",
    "url": "https://polymarket.com/market/wta-doubles-jakurad-emstzaa-2026-10-15",
    "slug": "wta-doubles-jakurad-emstzaa-2026-10-15",
    "venue": "polymarket",
    "question": "Lisbon (Doubles): Jakupovic/Radisic vs Emst/Zaar",
    "finalPrices": [
     {
      "price": 1,
      "outcome": "Jakupovic/Radisic"
     },
     {
      "price": 0,
      "outcome": "Emst/Zaar"
     }
    ],
    "resolutionTime": "2026-10-15T18:20:01.000Z",
    "winningOutcome": "Jakupovic/Radisic",
    "resolutionSource": "https://www.wtatennis.com/scores"
   }
  ],
  "venuesUnavailable": []
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/sitecheck-resolved-prediction-markets-80f2e8bf/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from api.sitecheck-api.workers.dev](https://www.zero.xyz/host/api.sitecheck-api.workers.dev/llms.txt)