How to test Linear webhooks locally

Linear webhooks fire when issues, projects, or cycles change. Use RelayFox to capture these events during integration development without deploying your server.

1. 1
   Create a free RelayFox URL on the homepage (no signup needed).
2. 2
   Paste it as your webhook endpoint: Linear → Settings → API → Webhooks → New webhook.
3. 3
   Trigger an event (e.g. Issue) and watch it arrive live in RelayFox.
4. 4
   Run the CLI to forward captured events to your local server:

   npx relayfox forward <endpoint-id> --to http://localhost:3000 --token rfx_...

5. 5
   Inspect headers, body and replay any event as many times as you need.

RelayFox preserves the Linear-Signature header when forwarding, so Linear's signature verification works against your local server unchanged.