# Polymarket Prediction Markets Search & Listing

> Polymarket Prediction Markets Search & Listing is a paid API for AI agents from x402.agentutility.ai, paid per call via x402, $0.005/call, status unknown (last checked 2026-09-14).

List and search active Polymarket prediction markets with outcome probabilities, liquidity, volume, end dates, and URLs for event-based odds research.

## Facts

- Endpoint: POST https://x402.agentutility.ai/prediction-markets
- Price: $0.005/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/polymarket-prediction-markets-search-listing-53e05c0a
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_hoP7C3oVqSp4zfEFTpYnB

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-markets-search-listing-53e05c0a -d '<json body>'
```

Example prompt: Search Polymarket for active prediction markets about the 2024 US presidential election and show me the current outcome probabilities, liquidity, and end dates for the top results.

## When to prefer this

Use this endpoint when an agent needs to research event probabilities or crowd-sourced forecasts from Polymarket without executing trades. Ideal for summarizing current market sentiment on political, financial, or world events. Prefer this over direct Polymarket API access when the agent operates in an x402 USDC-payment environment and needs structured, pre-processed market data. Not suitable for executing trades, managing positions, or real-time price streaming.

## Known failure modes

- No markets found matching the search query — returns empty list
- Polymarket data source temporarily unavailable — service error
- Overly broad query returns too many low-relevance markets
- Market data may have slight latency vs real-time Polymarket prices
- Payment failure via x402 protocol if USDC balance insufficient

## How this service works

List and search active Polymarket prediction markets with outcome probabilities, liquidity, volume, end dates, and URLs. Data-only market research for event odds — no trade signals, custody, or execution.

## Output

Returns a list of active Polymarket prediction markets matching the query, each including the market name/question, outcome probabilities (e.g. Yes/No percentages), liquidity amount, trading volume, market end/resolution date, and a direct URL to the market on Polymarket.

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "count": 10,
  "markets": [
   {
    "question": "Will candidate X win?",
    "outcome_prices": [
     0.42,
     0.58
    ]
   }
  ]
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/polymarket-prediction-markets-search-listing-53e05c0a/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from x402.agentutility.ai](https://www.zero.xyz/host/x402.agentutility.ai/llms.txt)