---
title: "Get Prediction Market Trades by Market"
method: POST
path: "/api/v1/prediction-market/trades-by-market"
tags: ["Prediction Markets"]
---

# Get Prediction Market Trades by Market

`POST /api/v1/prediction-market/trades-by-market`

Get recent trades for a Polymarket prediction market. Trades are decoded from
on-chain OrderFilled events on Polygon, joined with market metadata.

**What it helps to answer:**

1. **What are the most recent trades in this market?**
2. **Who is buying and selling, and at what prices?**
3. **What is the trade size distribution?**

## Request body

- TradesByMarketRequest — Request for trades by market endpoint.
  - `market_id` string, required — Polymarket market ID
  - `pagination` PaginationRequest — Pagination parameters for API requests.
    - `page` integer — Page number (1-based)
    - `per_page` integer — Number of records per page (max 1000)
  - `date` DateRange — Date range model matching the API schema.
    - `from` string — Start date in ISO 8601 format (e.g., 2025-01-01T00:00:00Z or 2025-01-01)
    - `to` string — End date in ISO 8601 format (e.g., 2025-01-31T23:59:59Z or 2025-01-31)
  - `order_by` SortOrderTradesByMarketSortField[] — Sort order
    - `field` 'timestamp', required — Sortable fields for trades by market endpoint.
    - `direction` 'ASC' | 'DESC', required — Enum for sort directions.

## Response `200`

Trade data

- TradesByMarketResponse — Response for trades by market endpoint.
  - `pagination` PaginationInfo — Pagination information for API responses.
    - `page` integer — Current page number
    - `per_page` integer — Number of records per page
    - `is_last_page` boolean — Whether this is the last page
  - `data` TradeByMarket[], required — List of trade records
    - `timestamp` string, date-time — Trade timestamp (ISO format)
    - `seller` string — Seller address (hex)
    - `buyer` string — Buyer address (hex)
    - `taker_action` string — Taker action (buy/sell)
    - `side` string — Outcome side (Yes/No)
    - `outcome_index` integer — Outcome index
    - `size` number — Trade size in tokens
    - `price` number — Price per share (0-1)
    - `usdc_value` number — Trade value in USDC
    - `tx_hash` string — Transaction hash (hex)
    - `market_id` string, required — Market ID

## Other responses

- `400` — Bad Request - Invalid request parameters or malformed request
- `401` — Authentication error - No API key found in request
- `402` — Payment Required - This endpoint supports pay-per-request via x402 and MPP. x402 responses advertise payment options in `Payment-Required`; MPP responses advertise a fresh `WWW-Authenticate: Payment ...` challenge. Successful MPP responses may include `Payment-Receipt`.
- `403` — Forbidden - User does not have required subscription tier or has exceeded credit limit
- `404` — Not Found - The requested resource was not found
- `422` — Validation error - Invalid request parameters
- `429` — Too Many Requests - Rate limit exceeded
- `500` — Internal Server Error - An unexpected error occurred

---

[API](https://skmtc.net/nansen/apis/nansen-api.md) · [All operations](https://skmtc.net/nansen/apis/nansen-api/llms.txt) · [OpenAPI document](https://skmtc-service-staging.skmtc.workers.dev/v1/apis/nansen/nansen-api/revisions/02a4d2e7d827/schema)