Alpaca website screenshot

Alpaca

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.

Alpaca publishes 16 APIs on the APIs.io network, including Market Data Streaming API, Account API, Assets API, and 13 more. Tagged areas include Market Data, Trading, Brokerage, Stocks, and Crypto.

The Alpaca catalog on APIs.io includes 1 event-driven AsyncAPI specification and 1 Spectral governance ruleset.

Alpaca’s developer surface includes documentation, engineering blog, and 7 more developer resources.

🌐 Visit website 📡 Source on GitHub
33.5/100 thin ▬ flat Agent 21/100 agent aware Full breakdown ↓
scored 2026-08-24 · rubric v0.13.0
AccessFreemium
16 APIs
Market DataTradingBrokerageStocksCryptoOptionsFX TradingFinancial DataStreamingWebSocket

Kin Score

Kin Score Kin Score How this is scored →
scored 2026-08-24 · rubric v0.13.0
Composite quality — 33.5/100 · thin
Contract Quality 13.1 / 21
Developer Ergonomics 0.4 / 17
Access Clarity 6.7 / 17
Operational Transparency 3.8 / 11
Contract Governance 1.4 / 10
Discoverability 6.3 / 9
Regulatory Posture 1.5 / 15
Agent readiness — 21/100 · agent aware
Machine-Readable Contract 18 / 18
Agentic Access Contract 10 / 10
Documented Reversibility 0 / 6
MCP Server 0 / 12
Machine-Readable Auth 10 / 10
Idempotency 0 / 9
Stable Error Semantics 0 / 8
Request/Response Examples 0 / 7
Rate-Limit Signaling 7 / 7
Typed Event Surface 6 / 6
Agent Skills 0 / 5
Well-Known Catalog 0 / 4
Consent & Bot Identity 0 / 3
A2A Agent Card 0 / 8
Dry-Run / Simulate Mode 0 / 4
Regulatory Posture applies to this provider. Its tags matched the Securities & Market Data regime, so Regulatory Posture carries 15 points of the composite. If this regime is wrong for your business, say so on your provider repo — the applicability map is public and we will correct it.
The six quality facets above are damped to 85 points between them, because the conditional facet above carries the other 15. That is why each facet's contribution is shown against a damped maximum: raising a quality facet moves the composite by 85% of its nominal weight, not 100%. The full arithmetic is at apis.io/rating/.
Improve this rating by publishing the missing artifacts — every area above can be raised, and the full rubric is at apis.io/rating/. This rating is computed from github.com/api-evangelist/alpaca-markets: open an issue to ask a question, or submit a pull request to add artifacts. Want it done for you? Prioritized profiling — $2,500 →

APIs 16

Individual APIs this provider publishes, each with its own machine-readable definition.

Alpaca Market Data Streaming API

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/v1...

Alpaca Account API

Trading account details, configuration, and activities.

Alpaca Assets API

Tradable asset catalog.

Alpaca Broker - Accounts API

Open and manage end-user brokerage accounts.

Alpaca Broker - Funding API

Transfers and journals between accounts.

Alpaca Broker - Trading API

Place orders on behalf of end-user accounts.

Alpaca Market API

Market calendar and clock.

Alpaca Market Data - Crypto API

Historical and latest crypto bars, trades, quotes, and orderbooks (v1beta3).

Alpaca Market Data - News API

Real-time and historical market news (v1beta1).

Alpaca Market Data - Options API

Options bars, trades, and snapshots (v1beta1).

Alpaca Market Data - Screener API

Most-actives and movers screeners (v1beta1).

Alpaca Market Data - Stocks API

Historical and latest stock bars, trades, quotes, snapshots, and auctions.

Alpaca Orders API

Submit, list, replace, and cancel orders.

Alpaca Portfolio API

Portfolio history and performance.

Alpaca Positions API

Open positions and liquidation.

Alpaca Watchlists API

User watchlists.

Scroll for all 16

Open Collections 17

Open, tool-agnostic API collections (OpenAPI-derived and Bruno).

API Collection

OPEN COLLECTION

Alpaca API (Trading, Market Data, Broker) Account API

OPEN COLLECTION

Alpaca API (Trading, Market Data, Broker) Account Assets API

OPEN COLLECTION

Alpaca API (Trading, Market Data, Broker) Account Broker - Accounts API

OPEN COLLECTION

Alpaca API (Trading, Market Data, Broker) Account Broker - Funding API

OPEN COLLECTION

Alpaca API (Trading, Market Data, Broker) Account Broker - Trading API

OPEN COLLECTION

Alpaca API (Trading, Data, Broker) Account Market API

OPEN COLLECTION

Alpaca API (Trading, Market Data, Broker) Account Market Data - Crypto API

OPEN COLLECTION

Alpaca API (Trading, Market Data, Broker) Account Market Data - News API

OPEN COLLECTION

Alpaca API (Trading, Market Data, Broker) Account Market Data - Options API

OPEN COLLECTION

Alpaca API (Trading, Market Data, Broker) Account Market Data - Screener API

OPEN COLLECTION

Alpaca API (Trading, Market Data, Broker) Account Market Data - Stocks API

OPEN COLLECTION

Alpaca API (Trading, Market Data, Broker) Account Orders API

OPEN COLLECTION

Alpaca API (Trading, Market Data, Broker) Account Portfolio API

OPEN COLLECTION

Alpaca API (Trading, Market Data, Broker) Account Positions API

OPEN COLLECTION

Alpaca API (Trading, Market Data, Broker) Account Watchlists API

OPEN COLLECTION

Alpaca API

OPEN COLLECTION

Scroll for all 17

Pricing Plans 1

Published pricing tiers and plan structures.

Alpaca Markets Plans Pricing

5 plans

PLANS

Rate Limits 1

Documented rate limits and quota policies.

Alpaca Markets Rate Limits

7 limits

RATE LIMITS

FinOps 1

Cost, billing, and metering signals for API financial operations.

Alpaca Markets Finops

FINOPS

Event Specifications 1

AsyncAPI definitions for this provider's event-driven and streaming APIs.

Alpaca Market Data Streaming (WebSocket)

AsyncAPI 2.6 description of Alpaca's **real-time market data WebSocket API**. Unlike many providers, Alpaca publishes a genuine, documented public WebSocket (`wss://`) surface f...

ASYNCAPI

Spectral Rules 1

Spectral governance rulesets for linting and validating these APIs.

Alpaca API Rules

9 rules · 1 errors 7 warnings 1 info

SPECTRAL

Agentic Access 1

Recommended x-agentic-access execution contracts for AI agents.

Alpaca Markets Agentic Access

30 operations · 10 acting

30 operations · 10 acting

AGENTIC

Resources

Documentation 1

Reference material describing how the API behaves

Documentation
Documentation

Agent Surfaces 1

MCP servers, agent skills, and machine-readable catalogs

AgenticAccess
AgenticAccess

Build 1

SDKs, sample code, and the tooling you integrate with

GitHubOrganization
GitHubOrganization

Operate 1

Status, limits, changes, and where to get help

RateLimits
RateLimits

Commercial 2

Pricing, plans, and the legal terms of use

Plans
Plans
 FinOps
FinOps

Company 3

The organization behind the API

LinkedIn
LinkedIn
 Website
Website
 Blog
Blog

Source (apis.yml)

apis.yml Raw ↑ 
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.
accessModel:
  pricing: freemium
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Freemium
  confidence: medium
  source:
  - plans
  generated: '2026-07-22'
  method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/alpaca-markets.png
tags:
- Market Data
- Trading
- Brokerage
- Stocks
- Crypto
- Options
- FX Trading
- Financial Data
- Streaming
- WebSocket
created: '2026-07-11'
modified: '2026-07-11'
specificationVersion: '0.23'
apis:
- aid: alpaca-markets:alpaca-markets-streaming-api
  name: Alpaca Market Data Streaming API
  tags:
  - Streaming
  - WebSocket
  - Market Data
  - Real-Time
  - Trading
  tags_raw:
  - 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-account-api
  name: Alpaca Account API
  description: Trading account details, configuration, and activities.
  humanURL: https://docs.alpaca.markets/reference/getaccount-1
  baseURL: https://api.alpaca.markets/v2
  tags:
  - Account
  properties:
  - type: OpenAPI
    url: openapi/alpaca-markets-account-api-openapi.yml
  - type: Documentation
    url: https://docs.alpaca.markets/docs/trading-api
  - type: APIReference
    url: https://docs.alpaca.markets/reference/getaccount-1
  - type: PostmanCollection
    url: collections/alpaca-markets.postman_collection.json
  - type: OpenCollection
    url: collections/alpaca-markets.opencollection.json
  - type: Documentation
    url: https://docs.alpaca.markets/docs/about-market-data-api
  - type: APIReference
    url: https://docs.alpaca.markets/reference/stockbars
  - type: Documentation
    url: https://docs.alpaca.markets/docs/about-broker-api
  - type: APIReference
    url: https://docs.alpaca.markets/reference/createaccount
- aid: alpaca-markets:alpaca-markets-assets-api
  name: Alpaca Assets API
  description: Tradable asset catalog.
  humanURL: https://docs.alpaca.markets/reference/getaccount-1
  baseURL: https://api.alpaca.markets/v2
  tags:
  - Assets
  properties:
  - type: OpenAPI
    url: openapi/alpaca-markets-assets-api-openapi.yml
  - type: Documentation
    url: https://docs.alpaca.markets/docs/trading-api
  - type: APIReference
    url: https://docs.alpaca.markets/reference/getaccount-1
  - type: PostmanCollection
    url: collections/alpaca-markets.postman_collection.json
  - type: OpenCollection
    url: collections/alpaca-markets.opencollection.json
  - type: Documentation
    url: https://docs.alpaca.markets/docs/about-market-data-api
  - type: APIReference
    url: https://docs.alpaca.markets/reference/stockbars
  - type: Documentation
    url: https://docs.alpaca.markets/docs/about-broker-api
  - type: APIReference
    url: https://docs.alpaca.markets/reference/createaccount
- aid: alpaca-markets:alpaca-markets-broker-accounts-api
  name: Alpaca Broker - Accounts API
  description: Open and manage end-user brokerage accounts.
  humanURL: https://docs.alpaca.markets/reference/getaccount-1
  baseURL: https://api.alpaca.markets/v2
  tags:
  - Broker - Accounts
  properties:
  - type: OpenAPI
    url: openapi/alpaca-markets-broker-accounts-api-openapi.yml
  - type: Documentation
    url: https://docs.alpaca.markets/docs/trading-api
  - type: APIReference
    url: https://docs.alpaca.markets/reference/getaccount-1
  - type: PostmanCollection
    url: collections/alpaca-markets.postman_collection.json
  - type: OpenCollection
    url: collections/alpaca-markets.opencollection.json
  - type: Documentation
    url: https://docs.alpaca.markets/docs/about-market-data-api
  - type: APIReference
    url: https://docs.alpaca.markets/reference/stockbars
  - type: Documentation
    url: https://docs.alpaca.markets/docs/about-broker-api
  - type: APIReference
    url: https://docs.alpaca.markets/reference/createaccount
- aid: alpaca-markets:alpaca-markets-broker-funding-api
  name: Alpaca Broker - Funding API
  description: Transfers and journals between accounts.
  humanURL: https://docs.alpaca.markets/reference/getaccount-1
  baseURL: https://api.alpaca.markets/v2
  tags:
  - Broker - Funding
  properties:
  - type: OpenAPI
    url: openapi/alpaca-markets-broker-funding-api-openapi.yml
  - type: Documentation
    url: https://docs.alpaca.markets/docs/trading-api
  - type: APIReference
    url: https://docs.alpaca.markets/reference/getaccount-1
  - type: PostmanCollection
    url: collections/alpaca-markets.postman_collection.json
  - type: OpenCollection
    url: collections/alpaca-markets.opencollection.json
  - type: Documentation
    url: https://docs.alpaca.markets/docs/about-market-data-api
  - type: APIReference
    url: https://docs.alpaca.markets/reference/stockbars
  - type: Documentation
    url: https://docs.alpaca.markets/docs/about-broker-api
  - type: APIReference
    url: https://docs.alpaca.markets/reference/createaccount
- aid: alpaca-markets:alpaca-markets-broker-trading-api
  name: Alpaca Broker - Trading API
  description: Place orders on behalf of end-user accounts.
  humanURL: https://docs.alpaca.markets/reference/getaccount-1
  baseURL: https://api.alpaca.markets/v2
  tags:
  - Broker - Trading
  properties:
  - type: OpenAPI
    url: openapi/alpaca-markets-broker-trading-api-openapi.yml
  - type: Documentation
    url: https://docs.alpaca.markets/docs/trading-api
  - type: APIReference
    url: https://docs.alpaca.markets/reference/getaccount-1
  - type: PostmanCollection
    url: collections/alpaca-markets.postman_collection.json
  - type: OpenCollection
    url: collections/alpaca-markets.opencollection.json
  - type: Documentation
    url: https://docs.alpaca.markets/docs/about-market-data-api
  - type: APIReference
    url: https://docs.alpaca.markets/reference/stockbars
  - type: Documentation
    url: https://docs.alpaca.markets/docs/about-broker-api
  - type: APIReference
    url: https://docs.alpaca.markets/reference/createaccount
- aid: alpaca-markets:alpaca-markets-market-api
  name: Alpaca Market API
  description: Market calendar and clock.
  humanURL: https://docs.alpaca.markets/reference/getaccount-1
  baseURL: https://api.alpaca.markets/v2
  tags:
  - Market
  properties:
  - type: OpenAPI
    url: openapi/alpaca-markets-market-api-openapi.yml
  - type: Documentation
    url: https://docs.alpaca.markets/docs/trading-api
  - type: APIReference
    url: https://docs.alpaca.markets/reference/getaccount-1
  - type: PostmanCollection
    url: collections/alpaca-markets.postman_collection.json
  - type: OpenCollection
    url: collections/alpaca-markets.opencollection.json
  - type: Documentation
    url: https://docs.alpaca.markets/docs/about-market-data-api
  - type: APIReference
    url: https://docs.alpaca.markets/reference/stockbars
  - type: Documentation
    url: https://docs.alpaca.markets/docs/about-broker-api
  - type: APIReference
    url: https://docs.alpaca.markets/reference/createaccount
- aid: alpaca-markets:alpaca-markets-market-data-crypto-api
  name: Alpaca Market Data - Crypto API
  description: Historical and latest crypto bars, trades, quotes, and orderbooks (v1beta3).
  humanURL: https://docs.alpaca.markets/reference/getaccount-1
  baseURL: https://api.alpaca.markets/v2
  tags:
  - Market Data - Crypto
  properties:
  - type: OpenAPI
    url: openapi/alpaca-markets-market-data-crypto-api-openapi.yml
  - type: Documentation
    url: https://docs.alpaca.markets/docs/trading-api
  - type: APIReference
    url: https://docs.alpaca.markets/reference/getaccount-1
  - type: PostmanCollection
    url: collections/alpaca-markets.postman_collection.json
  - type: OpenCollection
    url: collections/alpaca-markets.opencollection.json
  - type: Documentation
    url: https://docs.alpaca.markets/docs/about-market-data-api
  - type: APIReference
    url: https://docs.alpaca.markets/reference/stockbars
  - type: Documentation
    url: https://docs.alpaca.markets/docs/about-broker-api
  - type: APIReference
    url: https://docs.alpaca.markets/reference/createaccount
- aid: alpaca-markets:alpaca-markets-market-data-news-api
  name: Alpaca Market Data - News API
  description: Real-time and historical market news (v1beta1).
  humanURL: https://docs.alpaca.markets/reference/getaccount-1
  baseURL: https://api.alpaca.markets/v2
  tags:
  - Market Data - News
  properties:
  - type: OpenAPI
    url: openapi/alpaca-markets-market-data-news-api-openapi.yml
  - type: Documentation
    url: https://docs.alpaca.markets/docs/trading-api
  - type: APIReference
    url: https://docs.alpaca.markets/reference/getaccount-1
  - type: PostmanCollection
    url: collections/alpaca-markets.postman_collection.json
  - type: OpenCollection
    url: collections/alpaca-markets.opencollection.json
  - type: Documentation
    url: https://docs.alpaca.markets/docs/about-market-data-api
  - type: APIReference
    url: https://docs.alpaca.markets/reference/stockbars
  - type: Documentation
    url: https://docs.alpaca.markets/docs/about-broker-api
  - type: APIReference
    url: https://docs.alpaca.markets/reference/createaccount
- aid: alpaca-markets:alpaca-markets-market-data-options-api
  name: Alpaca Market Data - Options API
  description: Options bars, trades, and snapshots (v1beta1).
  humanURL: https://docs.alpaca.markets/reference/getaccount-1
  baseURL: https://api.alpaca.markets/v2
  tags:
  - Market Data - Options
  properties:
  - type: OpenAPI
    url: openapi/alpaca-markets-market-data-options-api-openapi.yml
  - type: Documentation
    url: https://docs.alpaca.markets/docs/trading-api
  - type: APIReference
    url: https://docs.alpaca.markets/reference/getaccount-1
  - type: PostmanCollection
    url: collections/alpaca-markets.postman_collection.json
  - type: OpenCollection
    url: collections/alpaca-markets.opencollection.json
  - type: Documentation
    url: https://docs.alpaca.markets/docs/about-market-data-api
  - type: APIReference
    url: https://docs.alpaca.markets/reference/stockbars
  - type: Documentation
    url: https://docs.alpaca.markets/docs/about-broker-api
  - type: APIReference
    url: https://docs.alpaca.markets/reference/createaccount
- aid: alpaca-markets:alpaca-markets-market-data-screener-api
  name: Alpaca Market Data - Screener API
  description: Most-actives and movers screeners (v1beta1).
  humanURL: https://docs.alpaca.markets/reference/getaccount-1
  baseURL: https://api.alpaca.markets/v2
  tags:
  - Market Data - Screener
  properties:
  - type: OpenAPI
    url: openapi/alpaca-markets-market-data-screener-api-openapi.yml
  - type: Documentation
    url: https://docs.alpaca.markets/docs/trading-api
  - type: APIReference
    url: https://docs.alpaca.markets/reference/getaccount-1
  - type: PostmanCollection
    url: collections/alpaca-markets.postman_collection.json
  - type: OpenCollection
    url: collections/alpaca-markets.opencollection.json
  - type: Documentation
    url: https://docs.alpaca.markets/docs/about-market-data-api
  - type: APIReference
    url: https://docs.alpaca.markets/reference/stockbars
  - type: Documentation
    url: https://docs.alpaca.markets/docs/about-broker-api
  - type: APIReference
    url: https://docs.alpaca.markets/reference/createaccount
- aid: alpaca-markets:alpaca-markets-market-data-stocks-api
  name: Alpaca Market Data - Stocks API
  description: Historical and latest stock bars, trades, quotes, snapshots, and auctions.
  humanURL: https://docs.alpaca.markets/reference/getaccount-1
  baseURL: https://api.alpaca.markets/v2
  tags:
  - Market Data - Stocks
  properties:
  - type: OpenAPI
    url: openapi/alpaca-markets-market-data-stocks-api-openapi.yml
  - type: Documentation
    url: https://docs.alpaca.markets/docs/trading-api
  - type: APIReference
    url: https://docs.alpaca.markets/reference/getaccount-1
  - type: PostmanCollection
    url: collections/alpaca-markets.postman_collection.json
  - type: OpenCollection
    url: collections/alpaca-markets.opencollection.json
  - type: Documentation
    url: https://docs.alpaca.markets/docs/about-market-data-api
  - type: APIReference
    url: https://docs.alpaca.markets/reference/stockbars
  - type: Documentation
    url: https://docs.alpaca.markets/docs/about-broker-api
  - type: APIReference
    url: https://docs.alpaca.markets/reference/createaccount
- aid: alpaca-markets:alpaca-markets-orders-api
  name: Alpaca Orders API
  description: Submit, list, replace, and cancel orders.
  humanURL: https://docs.alpaca.markets/reference/getaccount-1
  baseURL: https://api.alpaca.markets/v2
  tags:
  - Order
  tags_raw:
  - Orders
  properties:
  - type: OpenAPI
    url: openapi/alpaca-markets-orders-api-openapi.yml
  - type: Documentation
    url: https://docs.alpaca.markets/docs/trading-api
  - type: APIReference
    url: https://docs.alpaca.markets/reference/getaccount-1
  - type: PostmanCollection
    url: collections/alpaca-markets.postman_collection.json
  - type: OpenCollection
    url: collections/alpaca-markets.opencollection.json
  - type: Documentation
    url: https://docs.alpaca.markets/docs/about-market-data-api
  - type: APIReference
    url: https://docs.alpaca.markets/reference/stockbars
  - type: Documentation
    url: https://docs.alpaca.markets/docs/about-broker-api
  - type: APIReference
    url: https://docs.alpaca.markets/reference/createaccount
- aid: alpaca-markets:alpaca-markets-portfolio-api
  name: Alpaca Portfolio API
  description: Portfolio history and performance.
  humanURL: https://docs.alpaca.markets/reference/getaccount-1
  baseURL: https://api.alpaca.markets/v2
  tags:
  - Portfolio
  properties:
  - type: OpenAPI
    url: openapi/alpaca-markets-portfolio-api-openapi.yml
  - type: Documentation
    url: https://docs.alpaca.markets/docs/trading-api
  - type: APIReference
    url: https://docs.alpaca.markets/reference/getaccount-1
  - type: PostmanCollection
    url: collections/alpaca-markets.postman_collection.json
  - type: OpenCollection
    url: collections/alpaca-markets.opencollection.json
  - type: Documentation
    url: https://docs.alpaca.markets/docs/about-market-data-api
  - type: APIReference
    url: https://docs.alpaca.markets/reference/stockbars
  - type: Documentation
    url: https://docs.alpaca.markets/docs/about-broker-api
  - type: APIReference
    url: https://docs.alpaca.markets/reference/createaccount
- aid: alpaca-markets:alpaca-markets-positions-api
  name: Alpaca Positions API
  description: Open positions and liquidation.
  humanURL: https://docs.alpaca.markets/reference/getaccount-1
  baseURL: https://api.alpaca.markets/v2
  tags:
  - Positions
  properties:
  - type: OpenAPI
    url: openapi/alpaca-markets-positions-api-openapi.yml
  - type: Documentation
    url: https://docs.alpaca.markets/docs/trading-api
  - type: APIReference
    url: https://docs.alpaca.markets/reference/getaccount-1
  - type: PostmanCollection
    url: collections/alpaca-markets.postman_collection.json
  - type: OpenCollection
    url: collections/alpaca-markets.opencollection.json
  - type: Documentation
    url: https://docs.alpaca.markets/docs/about-market-data-api
  - type: APIReference
    url: https://docs.alpaca.markets/reference/stockbars
  - type: Documentation
    url: https://docs.alpaca.markets/docs/about-broker-api
  - type: APIReference
    url: https://docs.alpaca.markets/reference/createaccount
- aid: alpaca-markets:alpaca-markets-watchlists-api
  name: Alpaca Watchlists API
  description: User watchlists.
  humanURL: https://docs.alpaca.markets/reference/getaccount-1
  baseURL: https://api.alpaca.markets/v2
  tags:
  - Watchlist
  tags_raw:
  - Watchlists
  properties:
  - type: OpenAPI
    url: openapi/alpaca-markets-watchlists-api-openapi.yml
  - type: Documentation
    url: https://docs.alpaca.markets/docs/trading-api
  - type: APIReference
    url: https://docs.alpaca.markets/reference/getaccount-1
  - type: PostmanCollection
    url: collections/alpaca-markets.postman_collection.json
  - type: OpenCollection
    url: collections/alpaca-markets.opencollection.json
  - type: Documentation
    url: https://docs.alpaca.markets/docs/about-market-data-api
  - type: APIReference
    url: https://docs.alpaca.markets/reference/stockbars
  - type: Documentation
    url: https://docs.alpaca.markets/docs/about-broker-api
  - type: APIReference
    url: https://docs.alpaca.markets/reference/createaccount
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

Work with this as data

Every provider here is available over the APIs.io API and to AI agents over MCP.

MCP server

One button, every client — Claude, Cursor, VS Code and the rest.

https://apis.io/mcp

Tools for providers

9 MCP tools reach this
  • find_providersBrowse and filter every provider in the catalog.
  • get_provider_artifactsEvery artifact this provider publishes, grouped by type.
  • get_provider_operationsEvery operation across all of their OpenAPIs — one call instead of parsing every spec.
  • get_provider_toolsEvery MCP tool they ship, with the operation each wraps.
  • get_provider_evidenceHow each part of their score was established. Free — the basis for a claim should not sit behind it.
  • get_provider_ratingPRO — composite, band, trend and facet scores.
  • apis_io_searchSTART HERE — APIs, providers and tags for one query, each with its total.
  • resolveTurn a domain, URL or GitHub org into the provider it belongs to.
  • find_cohortsEvery scored population of providers in the catalog.
All 92 tools

Call it yourself

curl for this page
This provider 
curl "https://apis.io/api/v1/providers/alpaca-markets"
All providers 
curl "https://apis.io/api/v1/providers?limit=25"
Every operation they expose 
curl "https://apis.io/api/v1/providers/alpaca-markets/operations?limit=25"
How their score was established 
curl "https://apis.io/api/v1/providers/alpaca-markets/evidence"

Discovery needs no key. Ratings and market analysis are Pro.

Get an API key

Free tier, no email required.

GitHub Google LinkedIn

A second provider on the same verified email joins the account you already have.