# BlockRun Polymarket Volume Chart (YES/NO Breakdown)

> BlockRun Polymarket Volume Chart (YES/NO Breakdown) is a paid API for AI agents from blockrun.ai, paid per call via x402, $0.0085/call, status unknown (last checked 2026-09-14).

Returns a time-series volume chart with YES/NO outcome breakdown for a specific Polymarket prediction market, identified by its hash.

## Facts

- Endpoint: GET https://blockrun.ai/api/v1/pm/polymarket/volume-chart/:hash
- Price: $0.0085/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/blockrun-polymarket-volume-chart-yes-no-breakdown-da057445
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_aubQwKiz4LzsKhOU16nF_

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-yes-no-breakdown-da057445
```

Example prompt: Pull up the YES/NO volume chart for the Polymarket market with hash 0xabc123def456 so I can see how trading volume has been split between the two outcomes over time.

## When to prefer this

Use this endpoint when you need to analyze trading volume split by YES/NO outcomes for a specific Polymarket prediction market. It is ideal for agents building market analytics dashboards, comparing buyer sentiment via volume, or monitoring how conviction is distributed across outcomes for a given market hash. Prefer this over generic market data APIs when you specifically need outcome-level volume breakdown on Polymarket.

## Known failure modes

- Invalid or non-existent market hash returns an error or empty data
- Market hash format mismatch causes a 400 bad request
- Payment not included or insufficient USDC triggers a 402 Payment Required response
- Polymarket data source temporarily unavailable causes upstream failure
- Rate limiting or quota exceeded returns an error response

## How this service works

Get volume chart with YES/NO breakdown for a market

## Output

A volume chart object containing time-series data broken down by YES and NO outcome volumes for the specified Polymarket prediction market, allowing analysis of how trading interest has been distributed between the two sides.

## 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-yes-no-breakdown-da057445/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)