---
title: "Quick Lookup"
description: "Quick reference lookup for Authentication API."
url: "https://developer-beta.morningstar.com/authentication-api/quick-lookup"
image: "https://developer-beta.morningstar.com/_og/d/c_Ocean.takumi,title_~UXVpY2sgTG9va3VwIHwgQXV0aGVudGljYXRpb24gQVBJ,description_Quick+reference+lookup+for+Authentication+API.,props_eyJ0aGVtZSI6eyJtb2RlIjoibGlnaHQiLCJjb2xvcnMiOnsicHJpbWFyeSI6IiMwMDAwMDAifX19,p_Ii9hdXRoZW50aWNhdGlvbi1hcGkvcXVpY2stbG9va3VwIg,s_p5-CI3pWYWORPJ4W.png"
---

-   [APIs](https://developer-beta.morningstar.com/apis)
-   [API Catalog](https://developer-beta.morningstar.com/api-catalog)
-   [API Assistant MCP Server](https://developer-beta.morningstar.com/api-assistant-mcp)
-   [Guides](https://developer-beta.morningstar.com/api-guides)
-   [Trial Access](https://developer-beta.morningstar.com/trial-access)

# Authentication API

Generate access tokens that authorize API calls.

# Quick Lookup

[View Markdown](https://developer-beta.morningstar.com/authentication-api/quick-lookup.md)[Download Markdown](https://developer-beta.morningstar.com/authentication-api/quick-lookup.md)

Use the Quick Lookup pages when you need a specific value, code or definition and don't need the surrounding explanation. They are designed for scanning: each page presents its content as tables that you can search or skim.

## [In This Section](#in-this-section)

| Page           | What You'll Find                                                                 |
| :------------- | :------------------------------------------------------------------------------- |
| API Inputs     | The parameters, headers and request properties the API accepts, with accepted values, defaults and limits. |
| Error Messages | The error codes and messages returned in 400 responses.                          |