aid: alpaca-markets
url: https://raw.githubusercontent.com/api-evangelist/alpaca-markets/refs/heads/main/apis.yml
name: Alpaca
kind: company
description: Alpaca is a developer-first, commission-free brokerage that exposes
  stock, ETF, options, and crypto trading and market data entirely through APIs.
  The Trading API places and manages orders against a free paper-trading sandbox
  (paper-api.alpaca.markets) or a live account (api.alpaca.markets/v2); the Market
  Data API serves historical and real-time stocks, crypto, options, news, and
  corporate actions over REST plus WebSocket streams (data.alpaca.markets and
  stream.data.alpaca.markets); and the Broker API lets businesses open and fund
  end-user brokerage accounts. Authentication uses APCA-API-KEY-ID and
  APCA-API-SECRET-KEY headers, with OAuth2 available for third-party apps.
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg
tags:
- Market Data
- Trading
- Brokerage
- Stocks
- Crypto
- Options
- FX Trading
- Financial Data
- Streaming
- WebSocket
created: '2026-07-11'
modified: '2026-07-11'
specificationVersion: '0.19'
apis:
- aid: alpaca-markets:alpaca-markets-trading-api
  name: Alpaca Trading API
  tags:
  - Trading
  - Orders
  - Stocks
  - Crypto
  - Brokerage
  image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg
  humanURL: https://docs.alpaca.markets/reference/getaccount-1
  baseURL: https://api.alpaca.markets/v2
  properties:
  - url: https://docs.alpaca.markets/docs/trading-api
    type: Documentation
  - url: https://docs.alpaca.markets/reference/getaccount-1
    type: APIReference
  - url: openapi/alpaca-markets-openapi.yml
    type: OpenAPI
  - url: collections/alpaca-markets.postman_collection.json
    type: PostmanCollection
  - url: collections/alpaca-markets.opencollection.json
    type: OpenCollection
  description: Commission-free trading of US stocks, ETFs, options, and crypto.
    Submit, replace, and cancel orders; read account balances, positions, portfolio
    history, and account activities; browse tradable assets; and manage watchlists,
    the market calendar, and clock. Runs identically against the free paper-trading
    sandbox at paper-api.alpaca.markets and a funded live account.
- aid: alpaca-markets:alpaca-markets-market-data-api
  name: Alpaca Market Data API
  tags:
  - Market Data
  - Financial Data
  - Stocks
  - Crypto
  - Options
  image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg
  humanURL: https://docs.alpaca.markets/reference/stockbars
  baseURL: https://data.alpaca.markets
  properties:
  - url: https://docs.alpaca.markets/docs/about-market-data-api
    type: Documentation
  - url: https://docs.alpaca.markets/reference/stockbars
    type: APIReference
  - url: openapi/alpaca-markets-openapi.yml
    type: OpenAPI
  - url: collections/alpaca-markets.postman_collection.json
    type: PostmanCollection
  - url: collections/alpaca-markets.opencollection.json
    type: OpenCollection
  description: Historical and real-time pricing data for US stocks (SIP and IEX
    feeds), crypto, and options - bars, trades, quotes, snapshots, auctions,
    orderbooks, latest values, plus a news feed, corporate actions, and a
    most-actives / movers screener. REST over data.alpaca.markets with v2 stocks,
    v1beta3 crypto, and v1beta1 options / news / screener namespaces.
- aid: alpaca-markets:alpaca-markets-streaming-api
  name: Alpaca Market Data Streaming API
  tags:
  - Streaming
  - WebSocket
  - Market Data
  - Real Time
  - Trading
  image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg
  humanURL: https://docs.alpaca.markets/docs/streaming-market-data
  baseURL: wss://stream.data.alpaca.markets
  properties:
  - url: https://docs.alpaca.markets/docs/streaming-market-data
    type: Documentation
  - url: https://docs.alpaca.markets/docs/real-time-crypto-pricing-data
    type: APIReference
  - url: asyncapi/alpaca-markets-asyncapi.yml
    type: AsyncAPI
  description: Real-time market data over WebSocket. Stocks stream at
    wss://stream.data.alpaca.markets/v2/{feed} (iex, sip, delayed_sip, test) and
    crypto at wss://stream.data.alpaca.markets/v1beta3/crypto/us. Authenticate with
    an auth message, then subscribe to trades, quotes, bars, dailyBars,
    updatedBars, statuses, lulds, and (crypto) orderbooks per symbol or with a
    wildcard. This is a documented public wss:// API.
- aid: alpaca-markets:alpaca-markets-broker-api
  name: Alpaca Broker API
  tags:
  - Brokerage
  - Broker
  - Accounts
  - Embedded Finance
  - Trading
  image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg
  humanURL: https://docs.alpaca.markets/docs/about-broker-api
  baseURL: https://broker-api.alpaca.markets/v1
  properties:
  - url: https://docs.alpaca.markets/docs/about-broker-api
    type: Documentation
  - url: https://docs.alpaca.markets/reference/createaccount
    type: APIReference
  - url: openapi/alpaca-markets-openapi.yml
    type: OpenAPI
  description: Build brokerage and trading products for end users. Open and manage
    customer brokerage accounts (KYC/onboarding), move money via ACH and wire
    transfers, journal cash and securities between accounts, place trades on behalf
    of customers, and access documents and events. Sandbox at
    broker-api.sandbox.alpaca.markets uses HTTP Basic auth.
common:
- type: AgenticAccess
  url: agentic-access/alpaca-markets-agentic-access.yml
- type: LinkedIn
  url: https://www.linkedin.com/company/alpacahq
- type: Website
  url: https://alpaca.markets/
- type: Documentation
  url: https://docs.alpaca.markets
- type: GitHubOrganization
  url: https://github.com/alpacahq
- type: Plans
  url: plans/alpaca-markets-plans-pricing.yml
- type: RateLimits
  url: rate-limits/alpaca-markets-rate-limits.yml
- type: FinOps
  url: finops/alpaca-markets-finops.yml
- url: https://alpaca.markets/blog
  type: Blog
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com