# APXY

> APXY is a desktop HTTP/HTTPS proxy for developers who need to capture, inspect, mock, replay, and diff network traffic.

Last updated: 2026-05-17

## What APXY is

APXY sits between your app and the network so you can inspect the real request, response, headers, payload, and timing. It combines a local proxy, a CLI, and a browser-based Web UI for repeatable network debugging.

## What APXY is for

- Debugging HTTP/HTTPS failures with real traffic evidence
- Mocking unstable APIs for frontend and QA work
- Replaying captured requests after a patch
- Diffing responses before and after a fix
- Giving AI coding tools the network context they usually cannot see

## Key pages

- [Home](https://apxy.dev/)
- [Blog](https://apxy.dev/blog)
- [Templates](https://apxy.dev/templates)
- [Examples](https://apxy.dev/examples)
- [For Claude Code](https://apxy.dev/for/claude-code)
- [For Cursor](https://apxy.dev/for/cursor)
- [For Codex](https://apxy.dev/for/codex)
- [For GitHub Copilot](https://apxy.dev/for/copilot)
- [For Aider](https://apxy.dev/for/aider)
- [For Continue](https://apxy.dev/for/continue)
- [For Bolt](https://apxy.dev/for/bolt)
- [APXY vs Charles Proxy](https://apxy.dev/compare/charles-proxy)
- [APXY vs mitmproxy](https://apxy.dev/compare/mitmproxy)
- [APXY vs Proxyman](https://apxy.dev/compare/proxyman)
- [APXY vs Fiddler](https://apxy.dev/compare/fiddler)
- [APXY vs Wireshark](https://apxy.dev/compare/wireshark)
- [APXY vs Postman](https://apxy.dev/compare/postman)
- [APXY vs HTTPie](https://apxy.dev/compare/httpie)
- [Stripe checkout 422 after agent-generated patch](https://apxy.dev/share/stripe-checkout-422)
- [OpenAI integration mocked for frontend development](https://apxy.dev/share/openai-mock-frontend)
- [Pricing and license recovery](https://apxy.dev/license)

## Blog articles

- [How to Debug an MCP Server by Seeing the Real HTTP Traffic](https://apxy.dev/blog/how-to-debug-an-mcp-server-real-http-traffic)
- [How to Debug API Calls Made by Cursor](https://apxy.dev/blog/debug-api-calls-cursor-agent)
- [Why Your AI Coding Agent Needs Network Visibility](https://apxy.dev/blog/why-your-ai-coding-agent-needs-network-visibility)
- [What is API Mocking? A Developer's Guide](https://apxy.dev/blog/what-is-api-mocking)
- [The Real Cost of Flaky API Tests](https://apxy.dev/blog/the-real-cost-of-flaky-api-tests)
- [HTTP Status Codes Explained for API Developers](https://apxy.dev/blog/http-status-codes-explained)
- [How to Mock a REST API in 5 Minutes with APXY](https://apxy.dev/blog/how-to-mock-a-rest-api-in-5-minutes)
- [How to Debug a Failing API Call with APXY](https://apxy.dev/blog/how-to-debug-a-failing-api-call-with-apxy)
- [From Postman to Proxy: When API Testing Needs Network Evidence](https://apxy.dev/blog/from-postman-to-proxy)
- [Debugging Webhooks Locally with APXY](https://apxy.dev/blog/debugging-webhooks-locally)
- [How to Capture HTTPS Traffic from Cursor, Claude Code, and AI Coding Agents](https://apxy.dev/blog/capturing-https-traffic-from-cursor-and-ai-agents)
- [APXY vs mitmproxy: When You Need More Than Interception](https://apxy.dev/blog/apxy-vs-mitmproxy-when-you-need-mocking-too)
- [Token Optimization: Fitting API Traffic into Your AI Agent's Context Window](https://apxy.dev/blog/token-optimization-shrinking-api-traffic-for-ai-agent-context)
- [How to Debug API Errors in CI/CD Pipelines with APXY](https://apxy.dev/blog/debug-api-errors-in-ci-cd-pipelines)
- [How to Validate API Contracts with OpenAPI and APXY](https://apxy.dev/blog/validate-api-contracts-with-openapi-and-apxy)
- [Dynamic API Responses: Scripting with JavaScript in APXY](https://apxy.dev/blog/scripting-api-responses-with-javascript-in-apxy)
- [Why Local-First API Tools Are Winning](https://apxy.dev/blog/why-local-first-api-tools-are-winning)
- [Record and Replay API Traffic for Regression Testing with APXY](https://apxy.dev/blog/record-and-replay-api-traffic-for-regression-testing)

## Source

- [GitHub](https://github.com/apxydev/apxy)