# Polymarket Get order book API

> Retrieves the order book summary for a specific token ID. Includes bids, asks, market details, and last trade price.

Source: https://www.sandbase.ai/model/polymarket/book
API reference: https://www.sandbase.ai/model/polymarket/book/docs

## Facts

- Provider: Polymarket
- Type: Data API
- Endpoint: `POST https://api.sandbase.ai/v1/api/polymarket/book`
- Price: $0.02 per call
- Capabilities: api, polymarket, prediction markets
- Billing: pay per use from one SandBase balance; no provider account or subscription needed

## Call it

`POST https://api.sandbase.ai/v1/api/polymarket/book` with `Authorization: Bearer $SANDBASE_API_KEY` and the parameters as a JSON body.

| Parameter | Type | Required | Allowed values |
| --- | --- | --- | --- |
| `token_id` | string | yes |  |

## FAQ

### How do I use the Polymarket Get order book API?

Send a POST request to https://api.sandbase.ai/v1/api/polymarket/book with your SandBase API key in the Authorization header (Bearer) and the parameters as a JSON body. You can also try it in the Playground on this page without writing code.

### How much does the Polymarket Get order book API cost?

$0.02 per call, billed from your SandBase balance. You are only charged for calls you make; there is no subscription.

### What parameters does the Polymarket Get order book API accept?

Required: token_id (string). The Parameters table and the Playground on this page list every field.

### What does the Polymarket Get order book API return?

A JSON response returned in the same HTTP request (synchronous).

### Do I need a Polymarket developer account or API key?

No. Polymarket Get order book runs through SandBase, so one SandBase API key covers this endpoint and every other API and model in the catalog. You do not need to apply for Polymarket API access separately.

## README

### Polymarket Get order book API

Retrieves the order book summary for a specific token ID. Includes bids, asks, market details, and last trade price.

The response is the official Polymarket API response, unchanged.

#### Request

```bash
curl -X POST "https://api.sandbase.ai/v1/run" \
  -H "Authorization: Bearer $SANDBASE_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"model": "polymarket/book", "token_id": "0xabc123def456..."}'
```

#### Parameters

| Name | Type | Required | Description |
|---|---|---|---|
| `token_id` | string | Yes | Token ID (asset ID) |

#### Pricing

Flat price per call. Failed calls are not charged.