RelayKit vs WebhookX
RelayKit
relaykit.ioWebhookX
webhookx.ioSide by side
| Figure | RelayKit | WebhookX |
|---|---|---|
| Price from | $9/mo | $39/mo |
| Free plan | Yes | Yes |
| Free trial | Yes | — |
| Open source | — | Yes |
| Web | Yes | Yes |
| Windows | — | Yes |
| macOS | — | Yes |
| Linux | — | Yes |
| API | Yes | Yes |
| Self-hosted | — | Yes |
| Plans published | 3 | 3 |
| Spec score · Webhook Management Software | 7.8 (#20) | 8.6 (#8) |
| Support | The Team plan includes priority support. | The Team plan lists email support and a response SLA; the Enterprise plan lists premium support and a response SLA. |
| What it does | RelayKit captures, inspects, verifies, stores, and forwards webhook events from third-party services. | WebhookX is an open-source gateway for receiving, validating, transforming, routing and delivering webhook events. |
Plans
In their own words
RelayKit
RelayKit is a cloud service and API for receiving, inspecting, verifying, storing, and forwarding webhook events from third-party services. One incoming event can be delivered to multiple destinations in parallel, with each destination tracked and retried independently. Failed deliveries receive automatic retries of up to 20 attempts, and users can replay events manually. Inbound signature verification supports Stripe, GitHub, Shopify, Twilio, SendGrid, Paddle, Clerk, and Resend. Security controls include IPv4 and IPv6 IP allowlisting, configurable rate limits, and audit records for rejected requests. RelayKit says it forwards the original request body and headers, except for specified hop-by-hop headers. The @relaykit/cli can send webhooks to a local development server and requires Node.js 18 or later. Hobby costs nothing for 1,000 webhooks monthly. Pro costs $9 a month for 100,000 webhooks, and Team costs $29 a month for 500,000. Team adds Schema Sentinel, Time Machine replay, and priority support.