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Kalshi

Kalshi fcm API

FCM member specific endpoints

Documentation Provider Profile APIs.io OpenAPI GitHub

Kalshi fcm API is one of 21 APIs that Kalshi publishes on the APIs.io network, described by a machine-readable OpenAPI specification.

Tagged areas include FCM. The published artifact set on APIs.io includes an OpenAPI specification and API documentation.

This API exposes 2 operations across 2 paths, and defines 11 schemas. It is described by OpenAPI 3.2.0, at version 3.19.0.

Requests are made against 4 base URLs: https://external-api.kalshi.com/trade-api/v2, https://api.elections.kalshi.com/trade-api/v2, https://external-api.demo.kalshi.co/trade-api/v2, https://demo-api.kalshi.co/trade-api/v2.

2 operations 2 paths 11 schemas 2 GET

Metadata

The identity and technical contract details declared by the specification.

Specification
OpenAPI 3.2.0
API Version
3.19.0
Base URL
https://api.elections.kalshi.com/trade-api/v2
Authentication
API Key, API Key, API Key
Resource Areas
1

Authentication & Security 3

Kalshi fcm API declares 3 security schemes for authenticating requests. An API key is passed in the header as KALSHI-ACCESS-KEY (kalshiAccessKey). An API key is passed in the header as KALSHI-ACCESS-SIGNATURE (kalshiAccessSignature). An API key is passed in the header as KALSHI-ACCESS-TIMESTAMP (kalshiAccessTimestamp).

  • kalshiAccessKey — Your API key ID
  • kalshiAccessSignature — RSA-PSS signature of the request
  • kalshiAccessTimestamp — Request timestamp in milliseconds

Paths & Operations 2

Across 2 paths, the API surfaces 2 operations — 2 GET. Each is listed below with its method, path, parameters, and response codes.

fcm 2

FCM member specific endpoints

GET
/fcm/orders
Get FCM Orders
GetFCMOrders 8 params → 200400401404500
GET
/fcm/positions
Get FCM Positions
GetFCMPositions 7 params → 200400401404500

Schemas 11

The contract defines 11 schemas that model the data the API accepts and returns. The most detailed are Order (27 properties), MarketPosition (8 properties), EventPosition (6 properties), GetPositionsResponse (3 properties). Each schema is shown below with its type and property counts.

FixedPointCount
string
Fixed-point contract count string (2 decimals, e.g., "10.00"; referred to as "fp" in field names). Requests accept 0–2 decimal places (e.g., "10", "10.0", "10.…
GetOrdersResponse
object
2 properties 2 required
ExchangeIndex
integer
Identifier for an exchange shard. Defaults to 0 if unspecified. Note: currently only 0 supported.
BookSide
string
Side of the book for an order or trade. For event markets, this refers to the YES leg only: bid means buy YES, ask means sell YES. (Selling YES is economically…
Order
object
27 properties 19 required
GetPositionsResponse
object
3 properties 2 required
FixedPointDollars
string
US dollar amount as a fixed-point decimal string with up to 6 decimal places of precision. This is the maximum supported precision; valid quote intervals for a…
OrderStatus
string
The status of an order
EventPosition
object
6 properties 6 required
SelfTradePreventionType
string
The self-trade prevention type for orders. takeratcross cancels the taker order when it would trade against another order from the same user; execution stops a…
MarketPosition
object
8 properties 8 required

Specification

The full machine-readable OpenAPI contract behind this narrative.

Source

kalshi-fcm-api-openapi.yml Raw ↑

Other APIs Kalshi publishes across the network.

Kalshi Trade API (Demo)
AE Profile APIs.io
Kalshi WebSocket Streaming API
AE Profile APIs.io
Kalshi AsyncAPI Specification
AE Profile APIs.io
Kalshi Python Starter Kit
AE Profile APIs.io
Kalshi account API
AE Profile APIs.io
Kalshi api-keys API
AE Profile APIs.io
Kalshi communications API
AE Profile APIs.io
Kalshi events API
AE Profile APIs.io
Kalshi exchange API
AE Profile APIs.io
Kalshi historical API
AE Profile APIs.io
Kalshi incentive-programs API
AE Profile APIs.io
Kalshi live-data API
AE Profile APIs.io
#FCM
← Back to K APIs
API Details
ID
kalshi:kalshi-fcm-api
Base URL
https://api.elections.kalshi.com/trade-api/v2
Docs
https://docs.kalshi.com/api-reference
Provider
Kalshi
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