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.

Write a test flow — Multimeter docs

Use type: test to orchestrate steps: call HTTP (or an API file), then expect / check / assert the result.Markdown (no JavaScript)# Write a test flow Use `type: test` to orchestrate `steps:` call HTTP (or an API file), then `expect` / `check` / `assert` the result. ## Minimal example ```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 ``` Run the file — failed checks appear in the Report view. ## Tips - Use `http` for a direct call, or `call` to reuse a `type: api` file. - Put `expect` on the same step as the request — not as a separate step. - Prefer `expect` for soft failures that still continue; use `assert` to stop on failure. - Import helpers and data with `import` when tests grow. ## Learn more - [Test files](../files/test/index.md) - Example: [Simple Test](/docs/examples/basic/02_simple_test) For AI agents · llms.txt · Home