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.

In tests — Multimeter docs

Start mock servers directly from tests using the run step — tests stay self-contained with no manual server startup.Markdown (no JavaScript)# In tests Start mock servers directly from tests using the `run` step — tests stay self-contained with no manual server startup. ```yaml type: test title: Test with Mock Server import: mockApi: ./mocks/user-service.mmt 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 In the Flow panel, click **Add item** → **Server** to pick from imported server files. See [run step](../test/steps/run.md) for full details. Example: [Simple mock server](../../../examples/intermediate/18_simple_mock_server/README.md) --- See also: [Mock Server overview](./index.md) · [In suites](./in-suites.md) · [CLI](./cli.md) For AI agents · llms.txt · Home