# BlockRun Polymarket Opinion Orderbooks

> BlockRun Polymarket Opinion Orderbooks is a paid API for AI agents from blockrun.ai, paid per call via x402, $0.001/call, status unknown (last checked 2026-09-15).

Returns AI-generated opinion or live orderbook data for Polymarket prediction market events via a pay-per-call gateway settled in USDC.

## Facts

- Endpoint: GET https://blockrun.ai/api/v1/pm/opinion/orderbooks
- Price: $0.001/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/blockrun-polymarket-opinion-orderbooks-acd4c2b2
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_K2cA6kIjr7gzhseasEqi-

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-polymarket-opinion-orderbooks-acd4c2b2
```

Example prompt: What are the current orderbook prices and AI opinion on the upcoming US election outcome markets on Polymarket right now?

## When to prefer this

Use this endpoint when you need Polymarket orderbook or opinion data without managing your own Polymarket API key, and want micropayment-settled access via USDC on Base or Solana. Ideal for AI agents needing lightweight, pay-per-call prediction market data access.

## Known failure modes

- Payment not settled — returns 402 if USDC payment on Base or Solana is not confirmed
- No orderbook data available for the requested event — empty data object returned
- Polymarket data feed unavailable — upstream data source error
- Malformed request — missing or invalid query parameters
- Rate limiting or gateway timeout from BlockRun infrastructure

## How this service works

Fetch historical orderbook snapshots for an Opinion market

## Output

Returns structured orderbook data for Polymarket events, including bid/ask prices, probabilities, and potentially AI-synthesized opinions on market outcomes, delivered as a JSON data object.

## 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-polymarket-opinion-orderbooks-acd4c2b2/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)