Alpaca · Authentication Profile

Alpaca Authentication

Authentication

Alpaca secures its APIs with apiKey and http across 3 declared security schemes, as derived from its OpenAPI definitions.

FintechTradingStocksCryptoBrokerageMarket DataOptions
Methods: apiKey, http Schemes: 3 OAuth flows: API key in: header

Security Schemes

BasicAuth http
scheme: basic
API_Key apiKey
· in: header (APCA-API-KEY-ID)
API_Secret apiKey
· in: header (APCA-API-SECRET-KEY)

Source

Authentication Profile

Raw ↑ 
generated: '2026-07-11'
method: derived
source: openapi/alpaca-broker-api-openapi.yml, openapi/alpaca-data-api-openapi.yml, openapi/alpaca-oauth-api-openapi.yml,
  openapi/alpaca-trading-api-openapi.yml
summary:
  types:
  - apiKey
  - http
  api_key_in:
  - header
schemes:
- name: BasicAuth
  type: http
  scheme: basic
  sources:
  - openapi/alpaca-broker-api-openapi.yml
- name: API_Key
  type: apiKey
  in: header
  parameter: APCA-API-KEY-ID
  sources:
  - openapi/alpaca-data-api-openapi.yml
  - openapi/alpaca-oauth-api-openapi.yml
  - openapi/alpaca-trading-api-openapi.yml
- name: API_Secret
  type: apiKey
  in: header
  parameter: APCA-API-SECRET-KEY
  sources:
  - openapi/alpaca-data-api-openapi.yml
  - openapi/alpaca-oauth-api-openapi.yml
  - openapi/alpaca-trading-api-openapi.yml