Guides
Step-by-step Horizon guides for testing webhooks, OAuth sign-in, mobile apps, frameworks and self-hosted tools on localhost.
Pick the job you're doing. Every guide ends with a working result you can check in your terminal.
Use cases
Share a dev site, a local API, WebSockets or a streaming endpoint.
Webhooks
Receive and verify webhooks from 65 providers, from Stripe to Slack.
Sign-in and OAuth
Give Google, Apple, Auth0, WorkOS and others an HTTPS redirect URL.
Frameworks
Next.js, Vite, Django, Rails, Laravel, Docker and more.
Self-hosted and AI
MCP servers, Ollama, n8n, Home Assistant and WordPress.