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RelayKit
Webhook infrastructure with a local dev tunnel built in
RelayKit is webhook infrastructure built for developers: one ingest URL, fan-out to unlimited destinations, automatic retries with backoff, signature verification for 8 providers, and a free CLI that tunnels real webhooks straight to localhost. No more pasting new ngrok URLs into Stripe every morning.
Hey Product Hunt 👋
I built RelayKit because I was tired of the ngrok-URL-paste dance every time I restarted my dev server, and equally tired of finding out a webhook integration was broken only after it hit production.
The thing I'm most excited to share today is the local dev tunnel. It's not a separate feature bolted on next to the "real" product, it's literally the same fan-out, retry, and signature-verification pipeline that handles production traffic, just pointed at localhost:
```
relaykit login
relaykit tunnel --port 3000
```
That's it. Real events from Stripe, GitHub, Shopify, whatever you're integrating with, show up in your terminal as they happen, with retries and signature checks behaving exactly like they would in prod. You can even run a tunnel and your production destination side by side on the same project.
It's free on the Hobby plan, no credit card required, so if you've got a webhook integration you're building right now, I'd love for you to try it and tell me what breaks.
Also happy to answer anything about how the retry/fan-out engine works, or why we built Schema Sentinel (drift detection) and Time Machine (bulk replay) the way we did. 🙏
About RelayKit on Product Hunt
“Webhook infrastructure with a local dev tunnel built in”
RelayKit was submitted on Product Hunt and earned 16 upvotes and 9 comments, placing #31 on the daily leaderboard. RelayKit is webhook infrastructure built for developers: one ingest URL, fan-out to unlimited destinations, automatic retries with backoff, signature verification for 8 providers, and a free CLI that tunnels real webhooks straight to localhost. No more pasting new ngrok URLs into Stripe every morning.
On the analytics side, RelayKit competes within API, SaaS and Developer Tools — topics that collectively have 656.8k followers on Product Hunt. The dashboard above tracks how RelayKit performed against the three products that launched closest to it on the same day.
Who hunted RelayKit?
RelayKit was hunted by Gaurang Sharma. A “hunter” on Product Hunt is the community member who submits a product to the platform — uploading the images, the link, and tagging the makers behind it. Hunters typically write the first comment explaining why a product is worth attention, and their followers are notified the moment they post. Around 79% of featured launches on Product Hunt are self-hunted by their makers, but a well-known hunter still acts as a signal of quality to the rest of the community. See the full all-time top hunters leaderboard to discover who is shaping the Product Hunt ecosystem.
For a complete overview of RelayKit including community comment highlights and product details, visit the product overview.
Gaurang Sharma