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 doc that scans a folder of API files:Markdown (no JavaScript)# Doc quick start Minimal doc that scans a folder of API files: ```yaml type: doc title: Basic Parameter Docs sources: - api ``` Open the file in VS Code. The Doc view renders a searchable HTML page of APIs found in the sources. More: [Edit Doc](./edit.md) · [Environment](./environment.md) · [Annotations](./annotations.md) ## Try It (interactive API testing) Add `html.triable: true` to enable Swagger-like "Try" buttons on every endpoint in the HTML `doc:` ```yaml type: doc title: My APIs sources: - ./apis html: triable: true ``` Each endpoint gets a **Try** button on the right side of its header. Clicking it slides open an interactive panel where you can: - Edit the URL, method, query parameters, headers, and body - Click **Send** to fire a real HTTP request from the browser - See the response status, headers, body (auto-formatted JSON), and timing Each example also gets a small **Try** button that pre-fills the panel with that example's inputs. ### CORS Browser security blocks requests to APIs on different domains unless the API server sets `Access-Control-Allow-Origin` headers. If your API server doesn't set these headers, you can route requests through a CORS proxy: ```yaml html: triable: true cors_proxy: "https://corsproxy.io/?" ``` The proxy URL is prepended to the target URL when sending requests. --- For AI agents · llms.txt · Home