One workspace for testing, documenting, and sharing your API
apikumo turns your API into an MCP server with no code: import an OpenAPI spec or Postman collection and get hosted docs plus a live, read-only MCP endpoint that Claude, Cursor, and other agents can read. It also includes a full API client, test suites, and schema-based mocks, and it is free for teams of 3.
In one paragraph
You build and send requests in a browser workspace, organise them into collections, and turn them into test suites. When you publish a collection, the same requests become a hosted docs site with live try-it, a mock server built from your response schemas, and a read-only MCP endpoint that AI tools use to discover your API. Nothing to install, and a shared workspace for up to 3 members is free.
What apikumo replaces
The tools a small API team usually stitches together, from one collection.
Who it’s for
- Small teams of two or three who want to share a workspace without paying per user — a shared org on Free holds up to 3 members.
- Teams that publish an API for customers or partners and want the docs, mocks, and try-it to come from the requests they already test.
- Solo developers who want one place to send requests, keep collections, and publish docs.
- Anyone who wants AI agents to understand their API through an MCP endpoint instead of pasted docs.
Not the right fit if
- You need live gRPC, MQTT, or WebSocket clients — apikumo documents WebSocket endpoints but cannot open a live socket.
- You rely on flows or performance testing.
- You want collections stored as plain files in your Git repo, or you must work fully offline.
- You need open-source tooling you can self-host.
We compare honestly against Postman, Insomnia, Bruno, and Hoppscotch.
Frequently asked questions
What is apikumo?
apikumo turns your API into an MCP server with no code: import an OpenAPI spec or Postman collection and get hosted docs plus a live, read-only MCP endpoint that Claude, Cursor, and other agents can read. It also includes a full API client, test suites, and schema-based mocks, and it is free for teams of 3.
What does apikumo replace?
For most small teams: the everyday part of Postman, Insomnia, or Hoppscotch (collections, environments, scripts, a runner), a CLI like Newman for tests in CI, a separate mock server, a separate docs host, and a hand-written MCP server — all from one collection.
Who is apikumo for?
Small teams who want to share API collections without paying per user, teams who publish an API and want docs that come from the requests they test, solo developers, and anyone who wants AI agents to read their API through MCP.
Does it cost anything?
Free is $0 / month with 3 workspaces (one shared with up to 3 members), 3 published doc sites, and 3 MCP endpoints. Pro is $9 / month for one person; Team is $8 / seat / month for unlimited members.
Do I need to install anything?
No. apikumo runs in the browser at app.apikumo.com. The optional CLI (npm i -g @apikumo/apikumo) pushes OpenAPI specs and runs test suites in CI.
Still have questions? Contact us
Try it with your own API
Import a Postman, OpenAPI, or Insomnia file and publish docs, mocks, and an MCP endpoint in minutes.
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