APIScope

APIScope is a source-code-aware API client for VS Code and Cursor. It reads your application source code and turns controllers, routers, and endpoint definitions into a ready-to-use API client — inside your editor. A practical alternative when you want to work directly from the codebase rather than specs or hand-maintained collections.

• Discover and test APIs directly from source code
• Scan Spring Boot, Express, and FastAPI applications
• Automatically generate API collections from source code
• Source-code-first — works alongside OpenAPI and Swagger when those are part of your workflow
• Collections stay in sync when you rescan
• Useful for internal APIs, legacy systems, and codebases where the source is the best reference

Documentation: getapiscope.com

Why APIScope?

When the codebase is the most accurate picture of your API — or when you simply prefer working from source — exploring endpoints often means reading code in one place and rebuilding requests elsewhere.

APIScope offers a direct path: scan application source code, generate collections from controllers, routers, and endpoint definitions, and send requests without leaving the editor.

Source Code → APIScope → Send Request

Ideal For

• Backend developers exploring unfamiliar codebases
• Projects where source code reflects the current API surface
• Internal enterprise APIs
• Legacy applications
• Developers who live inside VS Code or Cursor

See it in action

The Collections sidebar gives quick access to scanned endpoints, environments, authentication, history, and scan. Requests show color-coded HTTP method badges; generated collections use a sparkle icon:

Scan your workspace to discover endpoints grouped by controller or router:

Send requests with headers, body, scripts, and response tests:

Features

• Discover endpoints directly from source code — Spring Boot, Express, and FastAPI scanners
• Generate ready-to-use API collections automatically — grouped by controller or router, refreshed on rescan
• Keep your own collections separate — create, import, and export user collections that rescans never overwrite
• Switch environments without retyping URLs — {{baseUrl}} variables with tier badges (LOCAL, DEV, PROD, …)
• Configure global authentication per environment — session, bearer, basic, and API key; credentials stored in VS Code Secret Storage
• Send and inspect requests in one panel — headers, JSON/multipart body, scripts, and response tests
• Replay past requests and draft new ones — execution history and ad-hoc draft tabs
• Handle file downloads from API responses — binary preview and persistence

Supported frameworks

Quick start

1. Install APIScope from the VS Code Marketplace or Open VSX.
2. Open a project that contains a supported framework.
3. Click the APIScope icon in the activity bar, then run Scan Endpoints.
4. Select a request from the Generated Collection and press Send (⌘↵ on macOS, Ctrl+Enter on Windows/Linux).

See the Getting Started guide for a full walkthrough, including sample projects.

Commands

Full list: getapiscope.com/guide/commands

Workspace data

APIScope stores collections, environments, history, and scans in a portable .apiscope/ directory beside your project:

.apiscope/
├── config.json
├── collections/
├── environments/
├── scans/
├── history/
├── drafts/
└── downloads/

See the Workspace Specification for details.

Documentation

• User guide — install, scan, send requests, authenticate
• Specifications — .apiscope/ workspace and history formats

Development

To build from source, run the docs site locally, or explore the architecture, see DEVELOPMENT.md.

License

Apache-2.0