---
title: "Polymarket Volume Split (YES/NO)"
method: GET
path: "/gateway/v1/prediction-market/polymarket/volume-split/{condition_id}"
tags: ["Prediction Market"]
---

# Polymarket Volume Split (YES/NO)

`GET /gateway/v1/prediction-market/polymarket/volume-split/{condition_id}`

## Request

- Base URL: `https://api.asksurf.ai`
- URL: `https://api.asksurf.ai/gateway/v1/prediction-market/polymarket/volume-split/{condition_id}`
- Auth: HTTP bearer

Volume split by YES/NO outcome sides per interval (hour/day/week), plus total volume and trade count.
Use this to see directional volume bias.
For aggregate volume without YES/NO breakdown, use `volumes` instead.

Data refresh: ~30 minutes

## Path parameters

- `condition_id` string, required: Polymarket condition ID

## Query parameters

- `granularity` 'hour' | 'day' | 'week': Time granularity for volume aggregation
- `start_time` integer: Start time (Unix seconds). 0 means no lower bound. Cache aligns to 5-minute buckets, so two requests within the same bucket return the same cached result.
- `end_time` integer: End time (Unix seconds). 0 means current time. Cache aligns to 5-minute buckets, so two requests within the same bucket return the same cached result.

## Response `200`

OK

- V2VolumeChartResponse
  - `$schema` string, uri: A URL to the JSON Schema for this object.
  - `condition_id` string, required
  - `data_points` V2VolumeChartPoint[], nullable, required
    - `no_volume` number, double, required: No-side volume in USD
    - `timestamp` integer, required: Unix timestamp (seconds)
    - `total_volume` number, double, required: Total volume in USD
    - `trades_count` integer, required: Number of trades
    - `yes_volume` number, double, required: Yes-side volume in USD
  - `end_time` integer, required
  - `granularity` string, required
  - `start_time` integer, required

## Other responses

- `default`: Error

---

[API](https://skmtc.dev/asksurf/apis/asksurf-public-rest-api.md) - [All operations](https://skmtc.dev/asksurf/apis/asksurf-public-rest-api/llms.txt) - [OpenAPI document](https://skmtc.dev/asksurf/apis/asksurf-public-rest-api/revisions/91774fdd5302?raw)