toolgrep / APIs & backend / Posthook

Alternatives to Posthook

Posthook: Webhook scheduler for reminders, follow-ups, and expirations. 8 products similar to Posthook, compared on pricing, free tier, API, MCP server, SDK and open source. 8 of 8 have a free tier, 8 of 8 have an API, 5 of 8 offer an MCP server, 4 of 8 are open source.

• AnyHook

  Webhook relay that answers senders in about a second, stores every event, and forwards to your handler with retries and replay

  APIs & backend free tierAPIMCP

• Svix

  Webhooks as a service platform for sending, receiving, and managing webhooks at scale.

  APIs & backend free tierAPIMCPSDKopen source

• Webhooker

  EU-hosted inbound webhook gateway with signature verification, durable storage, retries and replay.

  APIs & backend free tierAPI

• Hook0

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

  APIs & backend free tierAPIMCPSDKopen source

• Mocko

  Dynamic HTTP mocking tool for creating mock APIs, proxying REST APIs, and inspecting requests.

  Testing & QA free tierAPISDKopen source

• flaky

  A mock REST API that fails on purpose

  Testing & QA free tierAPI

• Mockfly

  Hosted mock API generator for frontend teams

  Testing & QA free tierAPIMCP

• Inngest

  Durable execution for workflows and AI agents

  APIs & backend free tierAPIMCPSDKopen source

Side by side

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