---
description: MCP clients can subscribe to Workers Issues through the Cloudflare API MCP server and receive each new issue as an MCP event.
title: Cloudflare API MCP server sends Workers Issues as MCP Events
image: https://developers.cloudflare.com/changelog/post/2026-10-13-cloudflare-mcp-events/og.png?v=8dc2e71b898502be
---

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October 13, 2026

## Cloudflare API MCP server sends Workers Issues as MCP Events

[Agents](https://developers.cloudflare.com/agents/) [Workers](https://developers.cloudflare.com/workers/)

Copy as Markdown| [View as Markdown](https://developers.cloudflare.com/changelog/post/2026-10-13-cloudflare-mcp-events/index.md)| [Agent setup](https://developers.cloudflare.com/agent-setup/)

[Workers Issues](https://developers.cloudflare.com/workers/observability/issues/) provides built-in error monitoring for Cloudflare Workers. It detects production failures and groups related failures into issues without an SDK or application wrapper.

The [Cloudflare API MCP server](https://developers.cloudflare.com/agents/model-context-protocol/cloudflare/servers-for-cloudflare/#cloudflare-api-mcp-server) now sends these issues as [MCP Events ↗︎](https://github.com/modelcontextprotocol/experimental-ext-triggers-events), the first event it exposes. MCP clients discover `cloudflare.alert.workers_observability_real_time_issue` with `events/list` and subscribe with `events/subscribe`, scoped to an account or a single Worker. When Issues detects a new or recurring issue, the server posts a signed event to the client's webhook, so an agent can start investigating without polling.

To use it, [enable Issues](https://developers.cloudflare.com/workers/observability/issues/#enable-issues) on your Worker and connect `https://mcp.cloudflare.com/mcp` with the Notifications Write and Workers Observability Write permissions to a client that supports MCP Events webhooks.

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