# BlockRun Polymarket Volumes

> BlockRun Polymarket Volumes is a paid API for AI agents from blockrun.ai, paid per call via x402, $0.0085/call, status unknown (last checked 2026-09-15).

Fetches trading volume data for a specific Polymarket prediction market condition

## Facts

- Endpoint: GET https://blockrun.ai/api/v1/surf/prediction-market/polymarket/volumes
- Price: $0.0085/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-volumes-7922de89
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_olDYSyJ9mjzD3xLMQRoop

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-volumes-7922de89
```

Example prompt: Can you pull up the trading volumes for this Polymarket condition — the condition ID is 0x1234abcd — I want to see how much activity that market has seen?

## When to prefer this

Use this endpoint when you need on-chain Polymarket volume data for a specific market condition and want a simple pay-per-call API without managing Polymarket API credentials directly. Prefer this over direct Polymarket access when working within the BlockRun payment infrastructure (x402/USDC on Base or Solana).

## Known failure modes

- Missing or invalid condition_id returns an error
- Unknown condition_id returns empty or not-found response
- Network or upstream Polymarket API outage causes failure
- Payment failure (insufficient USDC balance) blocks the request

## How this service works

Pay for the outcome. One endpoint for every model, tool and data source an agent needs — each call priced before it runs, at the best value per dollar. 103 models and 100 data and tool APIs.

## Output

Returns trading volume data for the specified Polymarket prediction market condition, including on-chain volume metrics that reflect total trading activity and liquidity for that market.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "condition_id": {
   "type": "string",
   "description": "Required query param"
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/blockrun-polymarket-volumes-7922de89/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)