Factset · Schema

startDate

The start date requested for a given date range in **YYYY-MM-DD** format. Data is available on a Fiscal Annual periodicity, but updated Daily. If left blank, the API will default to previous close. Future dates (T+1) are not accepted in this endpoint.

FinancialFinancial DataInvestment AnalyticsMarket DataPortfolio AnalyticsResearch

View JSON Schema on GitHub

JSON Schema

{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "title": "startDate",
  "type": "string",
  "description": "The start date requested for a given date range in **YYYY-MM-DD** format. Data is available on a Fiscal Annual periodicity, but updated Daily. If left blank, the API will default to previous close. Future dates (T+1) are not accepted in this endpoint.\n"
}

Work with this as data

Every JSON Schema 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 schemas

4 MCP tools reach this

find_json_schemasBrowse and filter every JSON Schema in the catalog.
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 JSON Schema

curl "https://apis.io/api/v1/json-schemas/factset-esg-start-date"

All schemas

curl "https://apis.io/api/v1/json-schemas?limit=25"

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.