Webhook Receiver & Local Replayer

Embedded Webhook Receiver (Port 9920)

Testing incoming webhooks locally usually requires complex tunneling or cloud mock tools. Stratos runs an embedded HTTP webhook receiver on port 9920.

Inspecting Webhook Payloads

When a webhook is triggered, Stratos captures and formats the event in the Webhooks inspector:

• HTTP Headers: Inspect authentication tokens, signatures (e.g. Stripe-Signature, X-Hub-Signature-256), and timestamps.
• JSON Body Formatter: Syntax-highlighted JSON viewer with searchable keys and collapsible nodes.
• Source Provider Detection: Automatically tags events from Stripe, Shopify, GitHub, Twilio, and Lemon Squeezy.

Replaying Webhooks

Iterate on bug fixes without triggering new events in your provider's dashboard. Click Replay Webhook to resend the exact payload to your local application endpoint.