Probe

Probe is a fast, native API client that supports HTTP, GraphQL, and WebSocket protocols.

Probe is a native API client built for humans, scripts, CI, and AI agents. It provides HTTP, GraphQL, and WebSocket support with fast startup times and low memory usage. Collections are stored as local OpenCollection YAML files that you own, making them easy to edit, diff, and commit to Git. Secrets are stored securely in your operating system's native credential store. It also includes features like environment variable inheritance, built-in documentation, response inspection for JWTs and timestamps, and imports from Postman and Yaak.

Probe at a glance

Best for: Software engineer
Runs on: Web, macOS, Windows, Linux, CLI
Pricing: Free
Released: October 2026
Category: AI coding tool
Website: rusty-probe.pages.dev

Key features

HTTP request support
WebSocket support
GraphQL support
CLI for automation and CI
Local OpenCollection YAML files
OS native secure credential storage
Environment variable inheritance
Postman and Yaak import

Use it for

Build and test API requests in a desktop app
Run API requests from the command line
Manage API collections in Git
Execute automated tests and CI pipelines

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