A fast, keyboard-first API client in your browser
Collections, environments, and variables with a command palette, multi-tab, and a Monaco body editor — plus test suites, schema-based mocks, hosted docs, and a read-only MCP endpoint on every published collection.
Built for speed, and for the whole API lifecycle
Keyboard-first
A command palette (Cmd-K), Cmd-Enter to send, and Cmd-\ to toggle the sidebar.
Collections, environments & variables
Organize requests and switch environments in a click.
Monaco body editor
A full code editor with format-on-paste for request bodies.
6 import formats
Bring requests in from Postman, OpenAPI, Insomnia, HAR, cURL, and Markdown.
27-language code samples
Copy a ready-to-run snippet in your language.
Syncs across devices
Sign in and your workspace follows you everywhere.
Test suites & reports
Chain requests into suites with assertions, run history, and flaky-test detection. PDF/CSV export on Pro and Team.
WebSocket & webhook docs
Document WebSocket endpoints and webhook payloads next to your HTTP requests, and test-send webhooks.
Schema-based mocks
Publish a collection and it serves mock responses at /mock/<path>, built from your schemas.
CLI for CI
npm i -g @apikumo/apikumo to push OpenAPI specs and run test suites from a pipeline.
Free for small teams
Share a workspace with up to 3 members on Free, you included. Team is $8 per seat per month.
Docs and MCP from the same collection
Publish a hosted docs site, and every published collection is also a read-only MCP endpoint.
Frequently asked questions
Do I need to install anything?
No. apikumo runs in your browser. An optional CLI is available for scripting and CI.
Can I import from Postman or OpenAPI?
Yes. apikumo imports Postman v2.1, OpenAPI, Insomnia, HAR, cURL, and Markdown.
What keyboard shortcuts are there?
A command palette (Cmd-K), Cmd-Enter to send, Cmd-\ to toggle the sidebar, plus multi-tab editing.
Is the API client free?
Yes. The Free plan includes the full API client with 3 workspaces, one of which you can share with up to 3 members, you included.
Does my work sync across devices?
Yes. Collections, environments, and settings sync to every device you sign in on.
Still have questions? Contact us
A quicker way to test your APIs
Sign in and start sending requests — nothing to install.
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