API Request Builder
Full Postman-like request builder with method selector, custom headers, body editor, and auth support.
Screenshot coming soon
Why You Need This
How this feature boosts your daily productivity
Testing APIs shouldn't require opening another app. Every time you switch to Postman or Insomnia, you lose context — you forget the endpoint, you need to copy auth tokens again, you lose track of the terminal output that prompted the test. 1DevTool's HTTP client lives right next to your terminal and code, so you can test an endpoint the moment your AI agent creates it. Bearer tokens, custom headers, JSON bodies — all without leaving your workspace.
How It Works
Get started in 4 simple steps
Set Up Your Request
Choose the HTTP method, enter the URL, and configure headers, auth, and body in the tabbed interface.
Send & Inspect
Hit send and see the response instantly — formatted JSON, headers, status code, and latency metrics.
Save & Organize
Save requests in tabs for quick re-use. Each project maintains its own request workspace and URL history.
Share & Debug
Copy as cURL for sharing. Send response data to your AI agent for analysis or debugging assistance.
Without 1DevTool
The manual way vs. the 1DevTool way
The Hard Way
The 1DevTool Way
Key Capabilities
Everything included with API Request Builder
Why It Matters
The productivity impact of having http client built into your workspace
No App Switching
Test APIs right next to your terminal and code. No more copying tokens to Postman or Insomnia.
Organized Requests
Multi-tab workspaces and saved requests keep your API testing organized per project.
Instant Debugging
Formatted responses, latency metrics, and copy-as-cURL make API debugging fast and shareable.
AI Integration
Send response data directly to your AI agent for analysis, documentation, or debugging assistance.
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Ready to boost your workflow?
Download 1DevTool for free and experience API Request Builder along with 48 other features — all in one app.