APXY | Network debugging and API mocking

Network evidence for the moments your code, device, and agent stop agreeing.

APXY brings live HTTP and HTTPS traffic into a warm, readable workflow. Capture failures, inspect payloads, mock unstable endpoints, and hand your AI agent the exact network context it needs to debug with confidence.

Install once, keep the proxy local, and move from capture to replay without leaving the terminal.

Get APXY

curl -fsSL https://apxy.dev/install.sh | bash

Or read the documentation

Workflow

A debugging flow agents can run end to end in the terminal

APXY gives coding agents CLI control to inspect live traffic, compare failing requests, create mocks, and verify fixes directly from the terminal.

Live debugging

Tool Suite

A clear UI that makes traffic easy to control

Inspect live requests, manage mock rules, and test network behavior in one place so you can understand issues fast and stay in control of the full flow.

Capture HTTP/HTTPS Traffic

Inspect live requests and responses in plain text while the full debugging context stays attached to the session.

Mock Rules

Create and test mock rules directly in APXY so you can change responses, reproduce edge cases, and validate fixes before touching the upstream service.

Network Conditions

Throttle latency, bandwidth, and packet loss to reproduce bad-network behavior before users hit it.

Mobile Capture

Inspect network traffic from iOS and Android

Capture HTTP and HTTPS traffic from physical devices, iOS simulators, and Android emulators so mobile bugs come with the exact request and response evidence instead of screenshots and guesses.

Step 1

Start from the desktop setup screen

APXY Console

The desktop app keeps device selection, QR setup, and connection status in one place. Users can see the supported target, launch the phone guide, and confirm when the device is online.

Choose target

Physical device, iOS simulator, or Android emulator

Open guide

QR code or step-by-step instructions from the same panel

Confirm ready

Connected devices appear in the console once traffic is live

Physical devices

Scan once, then continue with a guided flow on the phone instead of hopping between docs and settings menus.

iOS + Android test surfaces

The same setup screen covers real devices, iOS simulators, and Android emulators, so teams use one repeatable path.

HTTPS ready

The phone guide includes certificate installation and a connection test so encrypted traffic is working before inspection starts.

The phone setup page removes the guesswork

After scanning the QR code, APXY opens a mobile page that shows the exact proxy values, certificate action, and connection test in the order users need them.

Install APXY Read docs

Step 2

Finish setup on the phone

Guided mobile flow

The mobile view mirrors the real tasks: configure Wi-Fi proxy, install the CA certificate, and tap a connection check before moving on to debugging.

APXY mobile setup page on an iPhone showing Wi-Fi proxy values, certificate installation, and a test connection button.

MCP Server

AI-Powered Debugging with MCP

Connect AI agents to APXY with MCP, use apxy setup mcp to register supported clients, then inspect traffic, create debugging rules, and work with Anthropic, OpenAI, Gemini, and more directly from your terminal.

/#AI Agent

Create a redirect rule to send staging.api.example.com to localhost:3000 for my next test run using APXY.

Searched available tools, then created redirect rule via APXY MCP...

Redirect rule created successfully:

REDIRECT RULEActive

IDef51796139383a8

Fromstaging.api.example.com (wildcard match)

Tohttp://localhost:3000

StatusActive and ready for your test run

Any requests to staging.api.example.com will now be redirected to your local development server at localhost:3000. This is ideal for testing AI development work against a staging endpoint, and you can modify or remove it later with the rule ID.

Reply...

Pricing

One-time licenses, start free

Start with the free plan, then upgrade when you need unlimited traffic history, advanced debugging tools, and multi-device access.

Free

$0forever

Capture traffic and explore the Web UI. No account, no credit card.

Web UI access
200 traffic records
3 active mock rules
Core CLI commands included
30-minute sessions

Install Free

Pro

$59one-time

Unlimited captures, replay, diff, scripting, and network simulation on one machine.

Unlimited Web UI access
All CLI commands unlocked
Unlimited traffic & mock rules
Replay, diff & diagnose
Interceptors, scripts & breakpoints
Network simulation
1 device
1 year of updates

Buy Pro — $59

Personal

$118$79

one-time

Everything in Pro on two machines — your work laptop and your personal setup.

Everything in Pro
2 devices simultaneously
Transfer between devices
1 year of updates

Buy Personal — $79

Compare plans

See exactly what you get with each tier.

Feature	Free	Pro	Personal
Web UI	Limited	Full	Full
CLI commands	Basic	All unlocked	All unlocked
Traffic capture	200 records	Unlimited	Unlimited
Mock rules	3 active	Unlimited	Unlimited
Proxy + SSL interception	Included	Included	Included
Replay & diff requests	Not included	Included	Included
API diagnosis	Not included	Included	Included
Interceptors & scripts	Not included	Included	Included
Breakpoints (pause & debug)	Not included	Included	Included
Network simulation	Not included	Included	Included
Export (cURL, JSON, Markdown, TOON)	Not included	Included	Included
Custom CA certificates	Not included	Included	Included
Settings import/export	Not included	Included	Included
Session time limit	30 minutes	Unlimited	Unlimited
Devices	1	1	2

TOON = Token-Optimized Output Notation — a compact format designed for AI agent context windows.