---
title: "Get Multiple Market Orderbooks"
method: GET
path: "/markets/orderbooks"
tags: ["market"]
---

# Get Multiple Market Orderbooks

`GET /markets/orderbooks`

## Request

- Base URL: `https://external-api.kalshi.com/trade-api/v2`
- URL: `https://external-api.kalshi.com/trade-api/v2/markets/orderbooks`
- Auth: none declared

Endpoint for getting the current order books for multiple markets in a single request. The order book shows all active bid orders for both yes and no sides of a binary market. It returns yes bids and no bids only (no asks are returned). This is because in binary markets, a bid for yes at price X is equivalent to an ask for no at price (100-X). For example, a yes bid at 7¢ is the same as a no ask at 93¢, with identical contract sizes. Each side shows price levels with their corresponding quantities and order counts, organized from best to worst prices. Returns one orderbook per requested market ticker.

## Query parameters

- `tickers` string[], required

## Response `200`

Orderbooks retrieved successfully

- GetMarketOrderbooksResponse
  - `orderbooks` MarketOrderbookFp[], required
    - `ticker` string, required
    - `orderbook_fp` OrderbookCountFp, required: Orderbook with fixed-point contract counts (fp) in all dollar price levels.
      - `yes_dollars` PriceLevelDollarsCountFp[], required
        - string[]: Price level in dollars represented as [dollars_string, fp] where dollars_string is like "0.1500" and fp is a FixedPointCount string (fixed-point contract count). The second element is the contract quantity (not price).
      - `no_dollars` PriceLevelDollarsCountFp[], required
        - string[]: Price level in dollars represented as [dollars_string, fp] where dollars_string is like "0.1500" and fp is a FixedPointCount string (fixed-point contract count). The second element is the contract quantity (not price).

## Other responses

- `400`: Bad request - invalid input
- `401`: Unauthorized - authentication required
- `500`: Internal server error

## Changes

- **2026-09-29** `dde105932d49`: 1 info
  - the endpoint scheme security `kalshiAccessKey AND kalshiAccessSignature AND kalshiAccessTimestamp` was removed from the API
- **2026-07-31** `a07481be8bf9`: 3 warning
  - removed the optional property `service` from the response with the `400` status
  - removed the optional property `service` from the response with the `401` status
  - removed the optional property `service` from the response with the `500` status
- **2026-04-13** `218c1f661cbd`: 1 info
  - endpoint added

[Operation history](https://skmtc.dev/kalshi/apis/kalshi-trade-api-manual-endpoints/changes/markets/orderbooks/get.md)

---

[API](https://skmtc.dev/kalshi/apis/kalshi-trade-api-manual-endpoints.md) - [All operations](https://skmtc.dev/kalshi/apis/kalshi-trade-api-manual-endpoints/llms.txt) - [OpenAPI document](https://skmtc.dev/kalshi/apis/kalshi-trade-api-manual-endpoints/revisions/e6691cdd1915?raw)