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 environment file with one variable:Markdown (no JavaScript)# Environment quick start Minimal environment file with one variable: ```yaml type: env variables: base_url: https://test.mmt.dev ``` Open the file in VS Code to get the **environment panel** on the right. Use {{btn:edit:Edit Environment}} to edit variables and presets. Use {{btn:check:Apply}} to push this file’s variables into the workspace Environment panel, and {{btn:clear-all:Clear}} to remove only this file’s keys from that panel. Reference the variable in API or test files: ```yaml url: <<e:base_url>>/echo ``` More: [Edit Environment](./edit.md) · [Environment variables panel](./ui.md) · [Use environments](../../tasks/use-environments.md) · [CLI](./cli.md) For AI agents · llms.txt · Home