toolgrep / APIs & backend

Hook0

Open-source webhooks-as-a-service with HMAC signatures, configurable retries, and EU hosting

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Hook0 is an open-source (SSPL-1.0) webhooks-as-a-service platform. Developers send one API call per event and Hook0 handles delivery, two-phase configurable retries, HMAC payload signing, TLS encryption, delivery logging, replay, and a subscriber portal. Available as an EU-hosted (France) managed cloud or self-hosted via Docker Compose or Kubernetes. Includes a REST JSON API, SDKs, and an MCP server for AI assistants.

Category

APIs & backend

Pricing

freemium · from Free tier (100 events/day); paid cloud plans from €59/mo excl. VAT

Free tier

yes

API

yes

MCP server

yes

SDK

yes

Open source

yes

#webhooks#open-source#self-hosted#gdpr#eu-hosting#hmac#mcp

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Listed 2026-10-20 · last verified 2026-10-20 · extracted by @cf/zai-org/glm-5.3-flash · confidence 0.95

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