Multimeter is a Git-native REST client and API testing tool for VS Code. Requests, tests, mocks, and docs are YAML .mmt files in Git — the same files in the visual editor and in CI via testlight. Apache 2.0. No account.

How do I use Multimeter with Cursor, Copilot, or Claude?

Install the VS Code/Cursor extension or add MCP with npx -y mmt-mcp. Agents should call scaffold_test, validate, format, and run instead of guessing .mmt syntax.

Yes. Apache License 2.0. No account required.

Quick start — Multimeter docs

Minimal HTTP test against the public test server:Markdown (no JavaScript)# Test quick start Minimal HTTP test against the public test `server:` ```yaml type: test title: Simple HTTP test description: Calls an HTTP endpoint directly and checks the response steps: - http: https://test.mmt.dev/echo title: Send an echo request method: post body: message: hello world expect: status: 200 body.body.message: hello world ``` - `http` sends the request directly — see [http step](./steps/http.md) - `expect` / `require` validate output inline on the same step — see [Inline expect](./inline-expect.md) - Use `call` instead when reusing a `type: api` file — see [call step](./steps/call.md) More: [Steps](./steps/index.md) · [Reports](./reports.md) · [Stages](./stages/index.md) · [import](./import.md) · [Complete example](./complete-example.md) For AI agents · llms.txt · Home