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Alpaca Watchlist API

The Watchlist API from Alpaca — 2 operation(s) for watchlist.

Alpaca Watchlist API is one of 17 APIs that Alpaca publishes on the APIs.io network, described by a machine-readable OpenAPI specification and an AsyncAPI event-driven specification.

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

This API exposes 5 operations across 2 paths, and defines 5 schemas. It is described by OpenAPI 3.2.0, at version 1.0.0.

Requests are made against 2 base URLs: https://broker-api.sandbox.alpaca.markets, https://broker-api.alpaca.markets.

5 operations 2 paths 5 schemas 1 DELETE2 GET1 POST1 PUT

Metadata

The identity and technical contract details declared by the specification.

Specification
OpenAPI 3.2.0
API Version
1.0.0
Base URL
https://api.alpaca.markets/v2
Authentication
HTTP Basic
Terms of Service
Resource Areas
1

Authentication & Security 1

Alpaca Watchlist API declares 1 security scheme for authenticating requests. It accepts HTTP basic authentication (BasicAuth). By default, every request must be authenticated.

Paths & Operations 5

Across 2 paths, the API surfaces 5 operations — 1 DELETE, 2 GET, 1 POST, 1 PUT. Each is listed below with its method, path, parameters, and response codes.

Watchlist 5
GET
/v1/trading/accounts/{account_id}/watchlists
Retrieve all watchlists
getAllWatchlistsForAccount 1 param → 200
POST
/v1/trading/accounts/{account_id}/watchlists
Create a new watchlist
createWatchlistForAccount 1 param body → 200
GET
/v1/accounts/{account_id}/watchlists/{watchlist_id}
Manage watchlists
getWatchlistForAccountById 2 params → 200
PUT
/v1/accounts/{account_id}/watchlists/{watchlist_id}
Update an existing watchlist
replaceWatchlistForAccountById 2 params body → 200
DELETE
/v1/accounts/{account_id}/watchlists/{watchlist_id}
Remove a watchlist
deleteWatchlistFromAccountById 2 params → 200

Schemas 5

The contract defines 5 schemas that model the data the API accepts and returns. The most detailed are Asset (14 properties), Watchlist (6 properties), CreateWatchlistRequest (2 properties). Each schema is shown below with its type and property counts.

CreateWatchlistRequest
object
This model represents the fields you can specify when Creating or Updating/Replacing a Watchlist
2 properties 2 required
AssetClass
string
Watchlist
object
Represents a set of securities observed by a user.
6 properties 2 required
Exchange
string
Represents the exchange where an asset is traded. For Stocks: - AMEX - ARCA - BATS - NYSE - NASDAQ - NYSEARCA - OTC For Crypto: - ERSX - FTXU
Asset
object
Assets are sorted by asset class, exchange and symbol. Some assets are not tradable with Alpaca. These assets will be marked with the flag tradable=false
14 properties 3 required

Specification

The full machine-readable OpenAPI contract behind this narrative.

Source

alpaca-watchlist-api-openapi.yml Raw ↑

Other APIs Alpaca publishes across the network.

Alpaca Trading API
Alpaca OAuth API
Alpaca Accounts API
Alpaca Assets API
Alpaca Calendar API
Alpaca Clock API
Alpaca Corporate Actions API
Alpaca Crypto Pricing Data API API
Alpaca Documents API
Alpaca Events API
Alpaca Funding API
Alpaca Journals API
Where this information came from

This is an independent, third-party profile of Alpaca Watchlist API, published by API Evangelist. We do not operate, host, resell, or support these APIs, and we are not affiliated with or endorsed by the company unless stated above. Everything here is built from publicly available information — the company's own site, developer portal, documentation, public repositories, and the specifications it publishes for public use. Nothing is obtained by breaching a system, defeating an access control, or using credentials.

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