Try the demo locally

Try the demo locally

Chirp is Callspec’s sample API — a fictional social app (Chirp API v2). Use it to click around the explorer, fire live RPCs, and connect MCP.

Hosted (browse-only)

callspec.logfox.ai/demo is a static snapshot. You can browse routes and copy MCP snippets. Send and live MCP are off.

Live API on your machine

bash

git clone https://github.com/logfoxai/callspec.git
cd callspec && npm install
npm run build && npm run serve:chirp-demo

Open http://127.0.0.1:3456/v1/docs. Bearer token demo for authenticated routes and MCP.

That process is Callspec’s built-in explorer on a real Chirp server — try-it, callspec.json, OpenAPI, and /mcp.

Already have the repo? After npm run build, just npm run serve:chirp-demo.

Working on the docs site or explorer UI itself? See Development.