# Hook0 vs Webhook Relay (slim)

> Hook0 scores 64.6 (B) to Webhook Relay's 57.8 (C) for sending webhooks. Prices, MCP, x402, uptime and agent notes side by side.

- Full: https://www.anchorterminal.com/compare/hook0-vs-webhook-relay.md (~2,400 tokens) · this version ~780 tokens · JSON https://www.anchorterminal.com/compare/hook0-vs-webhook-relay.json · canonical https://www.anchorterminal.com/compare/hook0-vs-webhook-relay
- Index: https://www.anchorterminal.com/llms.txt · API: https://www.anchorterminal.com/api/v1/index.json · Updated: 2026-10-09

Hook0 scores 64.6 (B) on agent readiness against Webhook Relay's 57.8 (C), and leads in 6 of 7 scored categories. Webhook Relay leads on payments & pricing. Both do sending webhooks.

- Hook0: B 64.6, rank #347 of 950 · https://www.anchorterminal.com/tools/hook0.min.md
- Webhook Relay: C 57.8, rank #597 of 950 · https://www.anchorterminal.com/tools/webhook-relay.min.md
- Hook0, good for A product that has to send signed webhooks to its own customers' endpoints with retries, replay and a delivery log, and that wants EU hosting or the option to self-host the same code. Ahead on Reliability, 70 against 47; Schema & documentation, 79 against 71; Agent ergonomics, 65 against 59; Maintenance & community, 87 against 55; Transparency & trust, 84 against 63. Also Runs on your own machine.
- Webhook Relay, good for Teams that need third-party webhooks to reach localhost, on-premises CI or private Kubernetes services, with an agent that can configure buckets and inspect failed deliveries over MCP. Ahead on Payments & pricing, 50 against 40. Also A hosted endpoint, with nothing to install; No incidents deducted, where Hook0 loses 4 points for them.

| Category | Hook0 | Webhook Relay |
| --- | --- | --- |
| Reliability (16%) | 70 | 47 |
| Performance (10%) | pending | pending |
| Schema & documentation (13%) | 79 | 71 |
| Agent ergonomics (13%) | 65 | 59 |
| Security & auth (14%) | 64 | 61 |
| Payments & pricing (10%) | 40 | 50 |
| Task success (10%) | pending | pending |
| Maintenance & community (7%) | 87 | 55 |
| Transparency & trust (7%) | 84 | 63 |

| Fact (where they differ) | Hook0 | Webhook Relay |
| --- | --- | --- |
| Vendor | FGRibreau SARL | AppScension Ltd |
| Hosted endpoint | no (local only) | `https://my.webhookrelay.com/v1` |
| Transports | HTTP, stdio | HTTP |
| Auth | API key | OAuth or key |
| Licence | SSPL-1.0 for the server (source available, not an OSI licence). The SDKs and the `hook0-mcp` server are MIT per crates.io and npm. Hook0 Cloud is a hosted service under Hook0's terms of service | Proprietary hosted service under Webhook Relay's terms of service. The Go SDK is BSD-3-Clause and the TypeScript SDK is MIT. The `relay` CLI and the server are closed source |
| Tools exposed | 23 | 40 |
| Last release | 2026-09-21 | 2026-05-23 |
| Terms last updated | 2026-06-27 | 2019-11-25 |
| Privacy policy last updated | 2026-09-09 | 2018-06-01 |
| Terms restrict automated access | yes | not found in the text |
| Terms or service can change without notice | yes | not found in the text |
| Popularity | 1.5k stars, 507 npm/wk, 11 PyPI/wk | 9 stars, 24 npm/wk |