Workers Observability MCP Server 🔭
[!WARNING] This server is deprecated. Use the Cloudflare API MCP server at
https://mcp.cloudflare.com/mcpinstead. It covers the full Cloudflare API, including Workers Observability.
This is a Model Context Protocol (MCP) server that supports remote MCP connections, with Cloudflare OAuth built-in.
It integrates tools powered by Workers Observability to debug and get insight into your Workers' logs and analytics.
The /mcp URL uses a stateless SDK v2 handler that creates a fresh server with request-scoped auth/account context for every request. The retired /sse URL returns 410 Gone pointing at /mcp. OAuth and application search bindings remain durable application/security state; no MCP protocol session or protocol Durable Object is retained.
🔨 Available Tools
Currently available tools:
| Category | Tool | Description |
|---|---|---|
| Workers Analytics | query_worker_observability | Queries Workers Observability API to analyze logs and metrics from your Cloudflare Workers. Supports listing events, calculating metrics, and finding specific invocations |
| Schema Discovery | observability_keys | Discovers available data fields in your Workers logs including metadata fields, worker-specific fields, and custom logged fields |
| Value Exploration | observability_values | Finds available values for specific fields in Workers logs to help build precise filters for analytics queries |
This MCP server is still a work in progress, and we plan to add more tools in the future.
Prompt Examples
Can you tell me about any potential issues on this particular worker 'my-worker-name'?Show me the CPU time usage for my worker 'api-gateway' over the last 24 hoursWhat were the top 5 countries by request count for my worker yesterday?How many requests were made to my worker 'my-app' broken down by HTTP status code?Compare the error rates between my production and staging workers
Connect to the MCP server
Connect your MCP client directly to https://observability.mcp.cloudflare.com/mcp. If prompted, complete the Cloudflare OAuth flow in your browser. The tools become available after authorization.
Interested in contributing, and running this server locally? See CONTRIBUTING.md to get started.
