# BlockRun Polymarket Volume Chart

> BlockRun Polymarket Volume Chart is a paid API for AI agents from blockrun.ai, paid per call via x402, $0.0085/call, status unknown (last checked 2026-10-20).

Fetches historical volume chart data for a specific Polymarket prediction market token by contract address

## Facts

- Endpoint: GET https://blockrun.ai/api/v1/pm/polymarket/volume-chart/0x0000000000000000000000000000000000000000000000000000000000000000?utm_source=zero.xyz
- Price: $0.0085/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-20
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/blockrun-polymarket-volume-chart-f91e131a
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_dTY_yvR5KQC7-9B1xQrna

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-volume-chart-f91e131a
```

Example prompt: Pull up the trading volume chart for Polymarket contract address 0x1234...abcd — I want to see how volume has trended over time for that market.

## When to prefer this

Use this endpoint when you need historical trading volume chart data specifically for a Polymarket prediction market token, identified by its on-chain contract address. Prefer this over generic market data APIs when working with Polymarket's decentralized prediction market contracts and needing volume time-series data with x402 micropayment settlement.

## Known failure modes

- Invalid or malformed contract address returns an error or empty data
- Zero address (0x000...000) may return empty or placeholder data
- Contract address not found on Polymarket returns no data
- Network or API timeout returns a 5xx error
- Unpaid or insufficient USDC balance returns a 402 payment required error

## How this service works

BlockRun lets AI agents use money well: pay for results, not for seats or subscriptions, and put every cent on the model or tool that actually does the job.

## Output

Returns a time-series volume chart object with historical trading volume data for the specified Polymarket token/contract address, including volume figures across time intervals.

## 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-volume-chart-f91e131a/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)