Gostman · Office #51,618

What it is

Calls itself “API client”.

• Calls itself: API client

“Open source API client.”

Where it puts itself

Rules out “account” and “cloud sync”. Publishes a comparison page.

• Says it will not: account · cloud sync

“No account”

“No account, no cloud sync.”

What it costs

A free tier, free forever. No monthly or yearly plan. No one-time option.

• One-time: no
• Monthly: no
• Yearly: no
• Free plan: free forever

“Gostman has no paid tier, no account and no licence key, and every feature is in the free download.”

“Test any API. No account. No paid tier.”

“Free, open source and without an account.”

Who it sells to

Sells to developers. Made for coding agent.

• Sells to: developers
• Made for: coding agent

“An API client your coding agent can use over MCP”

“…and your coding agent all work from the same files.”

How it runs

A command-line tool, desktop app and web app for Linux, Windows and macOS. Runs locally and works offline. Distributed through the AUR. Offers an API. Open source. AI is a side feature. You can bring your own API key.

• Kind: cli · desktop · web
• Runs on: Linux · Windows · macOS
• Runs where: on the device, offline
• Distributed via: AUR
• API: yes
• Open source: yes
• AI role: a side feature
• Bring your own key: yes

“The desktop app, web app and CLI run the same Go engine”

“Linux, macOS and Windows builds on every release”

What it works with

Integrates with Claude Code, Codex and Cursor. Replaces Bruno, Insomnia and Postman.

• Integrates with: Claude Code · Codex · Cursor
• Replaces: Bruno · Insomnia · Postman

“A free alternative to Postman, Insomnia and Bruno that needs no account.”

“Claude Code, Codex and Cursor can call Gostman through MCP in place of curl.”

What it offers as proof

Live, no waitlist. Try it without signing up. Publishes docs.

• Instant signup: yes
• Trial asks for: nothing

“Download for Desktop”

“Try the web version”