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Probe
Native API client for humans and agents
Probe is a fast, native, local-first API client for HTTP, GraphQL, and WebSocket APIs on macOS, Windows, and Linux. Use one OpenCollection workspace across desktop, CLI, CI, and coding agents — without accounts, cloud workspaces, Electron, or WebViews.
About Probe on Product Hunt
“Native API client for humans and agents”
Probe was submitted on Product Hunt and earned 5 upvotes and 3 comments, placing #52 on the daily leaderboard. Probe is a fast, native, local-first API client for HTTP, GraphQL, and WebSocket APIs on macOS, Windows, and Linux. Use one OpenCollection workspace across desktop, CLI, CI, and coding agents — without accounts, cloud workspaces, Electron, or WebViews.
On the analytics side, Probe competes within API, Open Source, Developer Tools and GitHub — topics that collectively have 730.4k followers on Product Hunt. The dashboard above tracks how Probe performed against the three products that launched closest to it on the same day.
Who hunted Probe?
Probe was hunted by Crizant. A “hunter” on Product Hunt is the community member who submits a product to the platform — uploading the images, the link, and tagging the makers behind it. Hunters typically write the first comment explaining why a product is worth attention, and their followers are notified the moment they post. Around 79% of featured launches on Product Hunt are self-hunted by their makers, but a well-known hunter still acts as a signal of quality to the rest of the community. See the full all-time top hunters leaderboard to discover who is shaping the Product Hunt ecosystem.
For a complete overview of Probe including community comment highlights and product details, visit the product overview.
Hey Product Hunt 👋
I built Probe because I wanted an API client that worked the same way whether I was using a desktop app, scripting requests in a terminal, running them in CI, or handing the task to a coding agent.
Probe is a native, local-first API client built with Rust and GPUI. Your API workspace is stored as OpenCollection YAML, so it stays on your filesystem, works naturally with Git, and can be used by both the desktop app and CLI.
There’s no account, no cloud workspace, and no telemetry. The desktop app also doesn’t use Electron or WebViews.
Performance was another reason I wanted to build Probe natively. On my M4 test Mac, it restores an empty session in a median 265 ms, a 1,000-request collection in 296 ms, and even 10,000 requests in 538 ms. It typically sits at around 80 MB of RAM. I’ve published the benchmark methodology and raw results on the website rather than just calling it “fast.”
Probe supports HTTP, GraphQL, WebSocket, environments, variables and secrets, response inspection, Postman and Yaak imports, plus a CLI designed for automation and coding agents. There’s also an installable Probe agent skill so agents can learn how to work with the same API collection you use.
Probe is still a young open-source project, and that’s a big reason I’m launching it here. I’d really like to hear what feels missing, confusing, or unnecessary — and what would make you consider using Probe in your own workflow.
Thanks for checking it out 🛰️