Alpaca

Alpaca Trading API

The Alpaca Trading API enables commission-free trading of US-listed equities, options, and crypto. It exposes endpoints for orders, positions, account information, watchlists, calendar, clock, and assets. A paper trading sandbox is available at paper-api.alpaca.markets.

GitHub OpenAPI

Operations 11

GET /v1/trading/accounts/{account_id}/positions List open positions for an account #
DELETE /v1/trading/accounts/{account_id}/positions Close All Positions for an Account #
GET /v1/trading/accounts/{account_id}/positions/{symbol_or_asset_id} Get an Open Position for account by Symbol or AssetId #
DELETE /v1/trading/accounts/{account_id}/positions/{symbol_or_asset_id} Close a Position for an Account #
GET /v1/trading/accounts/{account_id}/orders/{order_id} Retrieves a single order for the given order_id #
PATCH /v1/trading/accounts/{account_id}/orders/{order_id} Replaces a single order with updated parameters #
DELETE /v1/trading/accounts/{account_id}/orders/{order_id} Attempts to cancel an open order #
GET /v1/trading/accounts/{account_id}/orders Retrieves a list of orders for the account, filtered by the supplied query… #
POST /v1/trading/accounts/{account_id}/orders Create an order for an account #
DELETE /v1/trading/accounts/{account_id}/orders Attempts to cancel all open orders. #
GET /v1/events/trades Subscribe to Trade Events (SSE) #

Documentation

📖
Documentation
https://docs.alpaca.markets/docs/trading-api

Specifications

⚙
OpenAPI
https://raw.githubusercontent.com/api-evangelist/alpaca/refs/heads/main/openapi/alpaca-trading-api-openapi.yml
⚙
AsyncAPI
https://raw.githubusercontent.com/api-evangelist/alpaca/refs/heads/main/asyncapi/alpaca-asyncapi.yml

Other Resources

🔗
Overlay
https://raw.githubusercontent.com/api-evangelist/alpaca/refs/heads/main/overlays/alpaca-trading-api-overlay.yaml
🔗
Sandbox
https://paper-api.alpaca.markets/v2
🔗
APIsJSON
https://raw.githubusercontent.com/api-evangelist/alpaca/refs/heads/main/apis.yml

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OpenAPI Specification

alpaca-trading-api-openapi.yml Raw ↑ 
openapi: 3.2.0
info:
  title: Broker Trading API
  description: Open brokerage accounts, enable crypto and stock trading, and manage the ongoing user experience with Alpaca Broker API
  version: 1.0.0
  contact:
    name: Alpaca Support
    email: support@alpaca.markets
    url: https://alpaca.markets/support
  termsOfService: https://s3.amazonaws.com/files.alpaca.markets/disclosures/library/TermsAndConditions.pdf
servers:
- url: https://broker-api.sandbox.alpaca.markets
  description: Sandbox endpoint
- url: https://broker-api.alpaca.markets
  description: Production endpoint
security:
- BasicAuth: []
tags:


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# Full source: https://raw.githubusercontent.com/api-evangelist/alpaca/refs/heads/main/openapi/alpaca-trading-api-openapi.yml