OpenAI Adds MCP Events So ChatGPT Can Subscribe to Server Updates and Act on Webhooks
Summary
OpenAI adds MCP Events, enabling ChatGPT to subscribe to MCP server updates and act on signed webhook deliveries under MCP 2.0 version 2026-07-28, while excluding polling and streaming.
Key Points
- OpenAI documents MCP Events, enabling ChatGPT to subscribe to MCP server updates and act on incoming webhook events.
- The integration requires MCP 2.0 protocol version 2026-07-28 and supports webhook delivery and callback verification, not polling or streaming.
- Servers must implement events/list, events/subscribe, and events/unsubscribe, validate HTTPS callbacks, and sign deliveries with Standard Webhooks.