# Polymarket Prediction Market Probabilities

> Polymarket Prediction Market Probabilities is a paid API for AI agents from hubvibe-io.com, paid per call via x402, $0.05/call, status unknown (last checked 2026-10-11).

Returns live Polymarket prediction market outcomes as percentage probabilities, searchable by topic or ranked by volume

## Facts

- Endpoint: POST https://hubvibe-io.com/work/market/prediction?utm_source=zero.xyz
- Price: $0.05/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-11
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/polymarket-prediction-market-probabilities-2dc18014
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_A4J0G633gBtjGkzAjM4WY

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 polymarket-prediction-market-probabilities-2dc18014 -d '<json body>'
```

Example prompt: What does Polymarket currently say about the probability of a Fed rate cut before year-end? Search for 'Federal Reserve rate cut' and show me the top 5 markets with their percentage odds.

## When to prefer this

Use this endpoint when you need live, crowd-sourced probability estimates from Polymarket expressed as readable percentages rather than raw prices. Ideal for political, financial, or event-driven forecasting questions where market-implied odds are more useful than expert opinion. Prefer over manual Polymarket browsing when you need programmatic, searchable access to outcomes.

## Known failure modes

- No markets found matching query — returns empty list or low-relevance results
- Limit out of range (must be 1–50) — may return error or default to 10
- Stale data if Polymarket API is temporarily unavailable
- Ambiguous topic query returning unrelated markets
- Rate limiting or payment failure at $0.05 per call

## How this service works

Prediction market odds: live Polymarket markets on any topic (elections, Fed rate cuts, crypto, sports, AI, geopolitics) with the probability each outcome implies as a percentage, plus volume, liquidity and end date. Search by topic words or tickers (BTC, 'fed rate cut') or take the biggest markets. A topic no open market matches is refused free, never sold empty. Input: optional query, limit. One market by slug: prediction.market.

## Output

A list of prediction market outcomes, each with a topic label and percentage probability (not raw price), representing the current crowd-implied likelihood as traded on Polymarket. Results are ranked by volume or filtered by topic query.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "limit": {
   "type": "integer"
  },
  "query": {
   "type": "string"
  },
  "language": {
   "type": "string",
   "pattern": "^[A-Za-z]{2,3}(-[A-Za-z0-9]{2,8})*$",
   "maxLength": 35
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "result": {
   "note": "Implied probabilities are what the market is currently pricing, not a forecast by HubVibe.",
   "count": 1,
   "query": "bitcoin",
   "source": "polymarket-gamma",
   "markets": [
    {
     "id": "512345",
     "slug": "will-btc-close-above-100k",
     "active": true,
     "closed": false,
     "volume": 1834520.5,
     "end_date": "2026-12-31T00:00:00Z",
     "question": "Will BTC close above $100k on Dec 31?",
     "liquidity": 240310.2,
     "implied_probabilities": [
      {
       "outcome": "Yes",
       "probability_pct": 62.5
      },
      {
       "outcome": "No",
       "probability_pct": 37.5
      }
     ]
    }
   ]
  },
  "status": "ok",
  "worker": "market.prediction",
  "price_usd": 0.05,
  "provenance": {
   "steps": [
    {
     "ms": 640,
     "ok": true,
     "step": "prediction",
     "provider": "polymarket-gamma"
    }
   ],
   "attempts": 1,
   "elapsed_ms": 660,
   "providers_used": [
    "polymarket-gamma"
   ]
  },
  "receipt_id": "rcpt_9f1c2b3a4d5e6f70",
  "receipt_url": "/work/receipts/rcpt_9f1c2b3a4d5e6f70"
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/polymarket-prediction-market-probabilities-2dc18014/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from hubvibe-io.com](https://www.zero.xyz/host/hubvibe-io.com/llms.txt)