ZHH API Tester

No Environment

Enabled parameters are appended to the URL automatically as a query string.

Values support variables, e.g. {{token}}, resolved from the active environment.

Credentials are only ever sent as part of the request you configure here — never stored remotely or transmitted anywhere else.

This request has no body.

Assertions run automatically against the real response after each request. Nothing here is simulated.

Ready to test your API

Enter an endpoint above and send your first request.

Request History

Stored locally in this browser only — never uploaded.

Collections

Organize saved requests into folders, stored locally.

Environments

Define variables like {{base_url}} and switch contexts instantly.

API Health Check

Runs a real request and produces a heuristic reachability report.

cURL Import & Export

Paste a cURL command to populate the request builder, or generate one from your current request.

OpenAPI / Swagger Import

Paste a compatible OpenAPI JSON document to generate a local endpoint list.

HTTP Status Code Reference

Quick explanations for common status codes.

Settings

Local preferences for this browser only.

Confirm before deleting

Ask for confirmation before removing history, requests, or collections.

Auto-save history

Automatically log every sent request to History.