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.

run — Multimeter docs

Start an imported mock server. The server joins the public running-server list: if this test is the outermost run, it stops when the test finishes; if the…Markdown (no JavaScript)# run Start an imported mock server. The server joins the public running-server list: if this test is the outermost run, it stops when the test finishes; if the test is inside a suite or load test, it stays up until that outer run finishes. ```yaml type: test title: Test with Mock Server import: mockApi: ./mocks/user-service.mmt # type: server file userApi: ./apis/user.mmt steps: - run: mockApi # starts the mock server - call: userApi id: getUsers - assert: ${getUsers.status} == 200 ``` **Behavior:** - If the server is already running, `run` does nothing (idempotent) - Servers join the same public running-server list used by suites. They stop when the **outermost** run finishes (this test, or the enclosing suite / load test) - If the port is already in use by another process, the test fails with an error Use this to make tests self-contained — no need to manually start servers before running. For validating call outputs inline, see [Inline expect, require, and debug](../inline-expect.md). Next: [Inline expect](../inline-expect.md) · [check](./check.md) · [assert](./assert.md) · [Mock servers in tests](../../server/in-tests.md) For AI agents · llms.txt · Home