API Explorer

The API Explorer module transforms your Drupal site into a
fully functional API testing and data exploration tool —
similar to Postman but built directly into Drupal. No login required.

Simply provide any public API endpoint URL and instantly retrieve,
visualize, and download the response data.

Features

- Supports GET, POST, PUT, and PATCH HTTP methods
- Custom request headers editor — add as many headers as needed
- Request body editor for POST/PUT/PATCH requests
- Response status bar showing HTTP status code and response time
- Three result views: interactive data table, raw JSON, and response headers
- Smart JSON normalization — automatically flattens nested objects into readable tables
- CSV download of any API response
- Reset button to clear all fields and start fresh
- No authentication required — works for any public API
- Built with Drupal 11 Form API and vanilla JavaScript

Post-Installation

After enabling the module, navigate to /api-explorer to access
the tool. No additional configuration is required. Works with
any public API such as weather, news, sports, finance, and more.

Additional Requirements

- Drupal 10 or 11
- No additional modules required beyond Drupal core

Recommended modules/libraries

No additional libraries required. Built with vanilla JavaScript and Drupal core behaviors.

Similar projects

Unlike REST UI or other API modules that focus on exposing Drupal
data, API Explorer is a client-side testing tool for consuming
and visualizing third-party APIs directly from your Drupal site.