httpmon

Spec sheet

Purpose

httpmon is a terminal HTTP/HTTPS debugging proxy that intercepts traffic so users can inspect and modify requests and responses.Read 8 Oct 2026 · httpmon.dev

Export

Captured flows can be exported in HAR format.Read 8 Oct 2026 · httpmon.dev

HTTPS interception

httpmon automatically generates CA certificates to decrypt HTTPS traffic for inspection.Read 8 Oct 2026 · httpmon.dev

Live inspection

Requests and responses appear in real time with methods and status codes color-coded.Read 8 Oct 2026 · httpmon.dev

MCP integration

An MCP server can expose captured traffic to LLM agents via the Model Context Protocol.Read 8 Oct 2026 · docs.httpmon.dev

Navigation and filtering

It supports vim-style navigation and filtering by host, path, method, or status code.Read 8 Oct 2026 · httpmon.dev

Protocol decoding

It decodes gRPC, gRPC-Web, and Protobuf bodies as readable JSON, including wire-format fields when no .proto files are provided.Read 8 Oct 2026 · httpmon.dev

Request tools

Users can inspect headers and bodies, compose or repeat requests, copy requests as cURL, and compare requests side by side.Read 8 Oct 2026 · httpmon.dev

Resource use

The FAQ says it starts in milliseconds and uses about 20 MB of RAM.Read 8 Oct 2026 · httpmon.dev

Security detail

The site says HTTPS traffic is decrypted and its headers, bodies, and timing are shown in plain text.Read 8 Oct 2026 · httpmon.dev

Supported platforms

The FAQ specifies macOS for Apple Silicon and Intel, and Linux for arm64 and amd64.Read 8 Oct 2026 · httpmon.dev

Traffic controls

JavaScript hooks can modify requests and responses; httpmon also supports throttling presets and serving local files.Read 8 Oct 2026 · httpmon.dev

Where it runs

The FAQ says httpmon works over SSH, in Docker containers, and in CI anywhere a terminal is available.Read 8 Oct 2026 · httpmon.dev

Plans and prices

Every httpmon plan and price →

Where Specifiction places it

• Web Debugging Proxies#19 of 277.7