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.

Multimeter — AI-powered REST Client and API testing in VS Code (Postman alternative)

Multimeter is an AI-powered REST Client and API testing tool for VS Code and CI. It is not an electrical multimeter. Tests are YAML .mmt files in Git, with a visual editor in VS Code. The CLI is testlight (npm mmt-testlight). The MCP server is mmt-mcp for Cursor, GitHub Copilot, and Claude. Git-native alternative to Postman. Judge API answers with AI (semantic similarity or open-ended checks) in the same test flow — also an alternative to Promptfoo. Apache License 2.0. No account required.For AI agents · llms.txt · Home