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Factset Constituents API

The Constituents API from Factset — 2 operation(s) for constituents.

Factset Constituents API is one of 460 APIs that Factset publishes on the APIs.io network, described by a machine-readable OpenAPI specification.

This API exposes 1 JSON Schema definition.

Tagged areas include Constituents. The published artifact set on APIs.io includes an OpenAPI specification, API documentation, code examples, a changelog, and 1 JSON Schema.

This API exposes 4 operations across 2 paths, and defines 12 schemas. It is described by OpenAPI 3.0.3, at version 1.0.0.

Requests are made against 2 base URLs: https://api.factset.com, https://api-sandbox.factset.com.

4 operations 2 paths 12 schemas 2 GET2 POST

Metadata

The identity and technical contract details declared by the specification.

Specification
OpenAPI 3.0.3
API Version
1.0.0
Base URL
https://api.factset.com
Authentication
HTTP Basic
Resource Areas
1

Authentication & Security 1

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

Paths & Operations 4

Across 2 paths, the API surfaces 4 operations — 2 GET, 2 POST. Each is listed below with its method, path, parameters, and response codes.

Constituents 4
GET
/factset-benchmarks/v1/constituents
Factset Returns the Requested Benchmark Constituents and Respective Weights, Price and Market Value.
getBenchmarkConstituents 4 params → 200400401403415500
POST
/factset-benchmarks/v1/constituents
Factset Returns the Requested Benchmark Constituents and Respective Weights, Price and Market Value.
getBenchmarkConstituentsForList body → 200400401403415500
GET
/factset-benchmarks/v1/fixed-income-constituents
Factset Returns the Requested Fixed Income Benchmark Constituents and Respective Weights, Price and Market Value.
getFIBenchmarkConstituents 3 params → 200400401403415500
POST
/factset-benchmarks/v1/fixed-income-constituents
Factset Returns the Requested Benchmark Constituents and Respective Weights, Price and Market Value.
getFIBenchmarkConstituentsForList body → 200400401403415500

Schemas 12

The contract defines 12 schemas that model the data the API accepts and returns. The most detailed are benchmarkConstituent (11 properties), fixedIncomeBenchmarkConstituent (8 properties), errorResponse (5 properties), benchmarkConstituentsRequest (4 properties). Each schema is shown below with its type and property counts.

benchmarkConstituentsResponse
object
1 property
benchmarkConstituent
object
11 properties
requestedDate
string
Date of holding expressed in YYYY-MM-DD format.
fixedIncomeBenchmarkConstituent
object
8 properties
constituentIds
array
Benchmark Identifiers. Reference the helper endpoint /id-list to get a sample list of valid identifiers. You must be authorized for the ids requested, otherwis…
benchmarkConstituentsRequest
object
4 properties 1 required
fIConstituentIds
array
Fixed Income Benchmark Identifiers. Reference the helper endpoint /id-list to get a sample list of valid identifiers. You must be authorized for the ids reques…
errorResponse
object
5 properties
currency
string
Currency for response.
fixedIncomeBenchmarkConstituentsRequest
object
3 properties 1 required
fixedIncomeBenchmarkConstituentsResponse
object
1 property
regionCalendar
string
Calendar of data returned.

Specification

The full machine-readable OpenAPI contract behind this narrative.

Source

factset-constituents-api-openapi.yml Raw ↑

Other APIs Factset publishes across the network.

FactSet Recommendation List API for Digital Portals
FactSet Bonds API for Digital Portals
FactSet Virtual Portfolio API for Digital Portals
FactSet Stocks API for Digital Portals
FactSet Securitized Derivatives API for Digital Portals
FactSet Watchlist API for Digital Portals
FactSet Funds API for Digital Portals
FactSet Data Monitor API
FactSet Mergers and Acquisitions API
FactSet News API
News API for Digital Portals
FactSet Real-Time Options API
Where this information came from

This is an independent, third-party profile of Factset Constituents 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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