Let Claude Code, Cursor or VS Code read your HTTP traffic

Connect your AI coding assistant to captured network traffic over MCP, so it can find the failing request, read the response and add a mock, all locally on your Mac.

Last updated 29 October 2026

An AI coding assistant can read your code, but not what your app actually sent over the network. When a request fails, you end up copying headers and JSON into the chat by hand. MinPin closes that gap: it runs a local Model Context Protocol (MCP) server, so the assistant can search captured traffic and read requests and responses itself.

What it looks like

ExampleYou: Why does checkout fail on staging?
Assistant calls search_requests("/v2/checkout") and finds POST /v2/checkout · 402 Payment Required, reads the body with get_request (error.code: "card_declined"), then adds a Map Local rule with add_map_local so you can test the success path.

Set it up

Install MinPin, trust its certificate, and capture some traffic (see the Simulator guide or SSL Proxying).
Open Settings → MCP and turn on Enable MCP Server. MCP is a PRO feature.
Click Setup in Claude Code, Setup in Cursor, Setup in VS Code, Setup in Windsurf or Setup in Claude Desktop. For any other MCP client, click Copy JSON and paste it into the client's config.
Ask your assistant about your traffic in plain language.

What the assistant can do

MinPin exposes 27 tools. The ones you will use most:

Find and read traffic: search_requests, list_requests, get_request (bodies arrive already decompressed), export_curl, export_har.
Change traffic: add_map_local, add_map_remote, add_breakpoint, add_block_rule.
Check security: get_security_alerts lists leaked tokens and other findings from Security Mode.

The full list is in the MCP reference.

Privacy

The server listens on a Unix socket readable only by your user account, never on the network.
Redact Sensitive Data is on by default: Authorization headers, cookies, API keys and sensitive query parameters are masked before the assistant sees them.
The assistant can only turn on SSL decoding for a host if you allow it in Settings → MCP.

Heads upMinPin keeps the traffic on your Mac. What your assistant does with the text it reads depends on the assistant and its model provider, so leave redaction on when you work with production data.

Try itMinPin is free to download, with full capture and SSL decoding in 30-minute sessions. Download MinPin (macOS 12+, Apple Silicon and Intel) or see what PRO adds.