TraceAPI

TraceAPI is a Manifest V3 browser extension for inspecting API requests without opening DevTools. It captures fetch and XMLHttpRequest calls from the active tab, displays request and response details in a side panel, formats JSON, generates Go structs, and keeps all captured data local.

Features

• Start, stop, and clear tab-scoped capture sessions.
• Inspect method, URL, status, duration, content type, request size, and response size.
• View request headers, request payload, response headers, and response body.
• Pretty print, minify, view, and copy JSON responses.
• Generate Go structs from valid JSON responses.
• Copy URL, cURL, headers, request body, response body, JSON, and Go structs.
• Search and filter requests by URL, method, status, headers, body, and MIME type.
• Mask sensitive headers by default.
• Local-only processing with no backend service.

Documentation

• Usage Guide
• Install Extension
• Development Guide
• Open Source Guide
• Contributing Guide
• Product Requirements

Quick Start

corepack enable pnpm
pnpm install
pnpm build

Load the generated dist/ folder as an unpacked extension in Chrome. See Install Extension for full steps.

Scripts

• pnpm dev: run Vite dev server.
• pnpm lint: run ESLint.
• pnpm test: run unit tests.
• pnpm build: type-check and build the extension into dist/.

License

This project is licensed under the MIT License.