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TradeStation Market Data API

Access real-time and historical market data including quotes, bar charts, symbol information, symbol lists, and cryptocurrency pairs.

TradeStation Market Data API is one of 6 APIs that TradeStation publishes on the APIs.io network, described by a machine-readable OpenAPI specification and an AsyncAPI event-driven specification.

This API exposes 2 JSON Schema definitions.

Tagged areas include Market Data. The published artifact set on APIs.io includes an OpenAPI specification, API documentation, an AsyncAPI specification, a JSON-LD context, and 2 JSON Schemas.

This API exposes 4 operations across 4 paths, and defines 8 schemas. It is described by OpenAPI 3.2.0, at version 3.0.

Requests are made against 2 base URLs: https://api.tradestation.com, https://sim-api.tradestation.com.

4 operations 4 paths 8 schemas 4 GET

Metadata

The identity and technical contract details declared by the specification.

Specification
OpenAPI 3.2.0
API Version
3.0
Base URL
https://api.tradestation.com
Authentication
OAuth 2.0
Terms of Service
Resource Areas
1

Authentication & Security 1

TradeStation Market Data API declares 1 security scheme for authenticating requests. It supports OAuth 2.0 (oauth2AuthCode) using the authorizationCode flow, exposing 3 scopes. By default, every request must be authenticated.

  • oauth2AuthCode — OAuth 2.0 authorization code flow for accessing TradeStation API resources. Requires user authorization and supports token refresh.

Paths & Operations 4

Across 4 paths, the API surfaces 4 operations — 4 GET. Each is listed below with its method, path, parameters, and response codes.

Market Data 4

Access real-time and historical market data including quotes, bar charts, symbol information, symbol lists, and cryptocurrency pairs.

GET
/v3/marketdata/quotes/{symbols}
Get quotes
getQuotes 1 param → 200400401
GET
/v3/marketdata/barcharts/{symbol}
Get bar chart data
getBars 7 params → 200400401404
GET
/v3/marketdata/symbols/{symbols}
Get symbol details
getSymbols 1 param → 200400401
GET
/v3/marketdata/symbollists/cryptopairs/symbolnames
Get cryptocurrency pairs
getCryptoPairs → 200401

Schemas 8

The contract defines 8 schemas that model the data the API accepts and returns. The most detailed are Symbol (15 properties), Quote (14 properties), Bar (9 properties), Error (3 properties). Each schema is shown below with its type and property counts.

Symbol
object
Detailed symbol information and metadata.
15 properties
QuotesResponse
object
Response containing quote data for one or more symbols.
1 property
Bar
object
A single OHLC bar representing price activity over a time interval.
9 properties
BarsResponse
object
Response containing bar chart data for a symbol.
1 property
CryptoPairsResponse
object
Response containing available cryptocurrency trading pairs.
1 property
SymbolsResponse
object
Response containing detailed symbol information.
1 property
Quote
object
Real-time quote data for a single symbol.
14 properties
Error
object
Standard error response returned by the TradeStation API.
3 properties

Specification

The full machine-readable OpenAPI contract behind this narrative.

Source

tradestation-market-data-api-openapi.yml Raw ↑

Other APIs TradeStation publishes across the network.

TradeStation Streaming API
TradeStation Accounts API
TradeStation Options API
TradeStation Order Execution API
TradeStation Reference Data API
Where this information came from

This is an independent, third-party profile of TradeStation Market Data 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.

The Kin Score and Agent Readiness rating are independently calculated assessments of a company's public API artifacts, scored against a published rubric. They are not certifications, endorsements, security assessments, or audits.

Corrections, re-scores, and removal are free — no partnership or purchase required, and you do not need to justify the request. A removed company is recorded as unrated, never scored zero for having asked. Acknowledgement within one business day; removal within two.

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