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Using the API Documentation

Intrinio's API Documentation is designed to help you quickly discover the endpoints available for your subscription, understand how each endpoint works, and build applications faster. Whether you're exploring data for the first time or integrating new datasets into your application, the documentation provides everything you need in one place.

The Fastest Way to Find Endpoints

The easiest way to find API endpoints for a dataset you already have access to is by starting from your Intrinio Account.

  1. Log in to your Intrinio account.
  2. Navigate to either:
    • Account → Subscription → Included Data Feeds, or
    • Account → Access → Data Feeds & Quick Start
  3. Select the data feed you'd like to use.
  4. Click View API Documentation.

You'll be taken directly to the API Documentation with the endpoint list already filtered for that specific data feed, making it easy to identify the relevant endpoints.

Filter Endpoints by Your Subscription

At the top of the API Documentation, you'll find two viewing options:

  • My Endpoints – Displays only the endpoints included with your current subscription.
  • All Endpoints – Displays every endpoint available across the Intrinio API.

Using My Endpoints is the quickest way to ensure you're only viewing APIs you can immediately use.

Search the Documentation

The documentation includes a search feature that allows you to quickly locate endpoints by:

  • Endpoint name
  • Resource (Companies, Securities, Fundamentals, Options, ETFs, etc.)
  • Data feed
  • Keywords

Selecting an endpoint displays:

  • A description of what it returns
  • Required and optional parameters
  • Example requests
  • Example responses
  • Authentication requirements
  • Response schemas
  • HTTP status codes

These examples can be copied directly into your application to accelerate development.

Use the OpenAPI Specification

If you're using AI coding assistants such as ChatGPT, Claude, Cursor, GitHub Copilot, or Windsurf, we recommend using Intrinio's OpenAPI specification.

The OpenAPI specification serves as the authoritative reference for:

  • Endpoint names
  • Request parameters
  • Response schemas
  • Authentication
  • Example requests

Most modern AI development tools can load the OpenAPI specification directly, significantly reducing implementation errors and incorrect endpoint usage.

Learn more here:

https://help.intrinio.com/how-can-i-access-the-open-api-spec

Let the MCP Server Guide You

Another powerful way to discover the right endpoints is by using the Intrinio Financial Data MCP Server.

Unlike traditional documentation searches, the MCP Server understands:

  • Your current subscription
  • The datasets you have access to
  • Your development goals described in natural language

For example, you can ask:

  • "How do I retrieve Apple's latest income statement?"
  • "What's the best endpoint for historical options prices?"
  • "Show me how to retrieve ETF holdings."

The MCP Server can recommend the appropriate datasets, endpoints, and implementation approach based on your account permissions, helping you avoid endpoints that aren't included with your subscription.

Learn more about the MCP Server:

https://intrinio.com/mcp

Don't Have Access to a Dataset?

The API Documentation displays all available endpoints, but some endpoints require datasets that may not be included with your subscription.

If you discover an endpoint you'd like to use but don't currently have access to, you can request additional datasets or discuss enterprise licensing by submitting a Request a Consultation (RAC):

https://intrinio.com/request-a-consultation#consultation-form

Tips for Faster Development

  • Start from your Account page whenever possible to automatically filter the documentation to your subscribed datasets.
  • Use My Endpoints to avoid browsing endpoints that aren't included with your subscription.
  • Use the OpenAPI specification with AI coding assistants for the most accurate implementation guidance.
  • Use the MCP Server when you're unsure which endpoint or dataset best fits your use case—it can recommend the right APIs based on your subscription and development goals.