# BlockRun.AI Prediction Market Search

> BlockRun.AI Prediction Market Search is a paid API for AI agents from blockrun.ai, paid per call via x402, $0.0085/call, status healthy (last checked 2026-10-10, last successful call 2026-09-24).

Search and discover prediction markets across Polymarket, Kalshi, Limitless, Opinion, and Predict.Fun in a single unified query

## Facts

- Endpoint: GET https://blockrun.ai/api/v1/pm/markets/search?utm_source=zero.xyz
- Price: $0.0085/call
- Payment: x402
- Status: healthy
- Last checked: 2026-10-10
- Last successful call: 2026-09-24
- Success rate: 90% of calls made through Zero
- Rating: 4.5 / 5 from 2 reviews
- Activations on Zero: 10
- Tags: x402
- Canonical page: https://www.zero.xyz/c/blockrun-ai-159fe9f1
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_YlErrIFhPgKyr3zytPz4-

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 blockrun-ai-159fe9f1
```

Example prompt: Search across Polymarket, Kalshi, Limitless, Opinion, and Predict.Fun and show me all open prediction markets about Federal Reserve interest rate hikes in 2025.

## When to prefer this

Use this endpoint when you need to discover prediction markets on a specific topic without knowing which platform hosts them. It is especially valuable when comprehensive coverage across Polymarket, Kalshi, Limitless, Opinion, and Predict.Fun is needed in a single call, saving the need to query each venue individually.

## Known failure modes

- No markets found matching the search query — returns empty result set
- Query too vague — may return unrelated or low-relevance markets
- Rate limiting or payment failure — 402 payment required error if x402 payment not attached
- Upstream venue unavailable — partial results if one or more platforms are temporarily down
- Invalid query format — returns 400 bad request

## How this service works

Search markets across Polymarket, Kalshi, Limitless, Opinion, and Predict.Fun in a single call

## Output

A list of prediction market results aggregated across multiple platforms including market titles, links, metadata, and market details matching the search query.

## Example request

```json
{
 "q": "election"
}
```

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "input": {
   "type": "object",
   "properties": {
    "query": {
     "type": "object",
     "required": [],
     "properties": {}
    }
   }
  },
  "output": {
   "type": "object",
   "properties": {
    "example": {
     "type": "object",
     "properties": {
      "data": {
       "type": "object"
      }
     }
    }
   }
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/blockrun-ai-159fe9f1/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from blockrun.ai](https://www.zero.xyz/host/blockrun.ai/llms.txt)