Turn any webhook into an MCP event with the MCP Events bridge

Phil Leggetter introduces the open-source MCP Events bridge, an MIT-licensed MCP server built on Hookdeck Event Gateway that converts verified webhooks from services such as Resend, GitHub, Stripe, Slack, and custom systems into MCP Events that can wake AI agents. Designed to address the limited number of MCP servers supporting the draft SEP-3415 event specification, the bridge supports webhook and polling delivery, subscription filters, retries, deduplication, signed deliveries, event replay through cursors, and persistent operation without its own database by relying on Event Gateway connections and history. It integrates with ChatGPT Work chats through monitoring tasks, offers a polling plugin for Claude Code, and has been tested with clients including Hermes Agent, Vercel AI SDK, Mastra, and TanStack AI. Setup requires Node.js, a Hookdeck account, source credentials, and a bridge configuration, while security measures include mandatory webhook verification and warnings that event content may be untrusted or pose prompt-injection risks. The project remains subject to changes because MCP Events is still a draft standard, and Hookdeck plans eventually to incorporate direct MCP Events subscriptions into Event Gateway itself.

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