Cloudflare's remote Observability MCP server queries the Workers Observability API to analyze logs and metrics, list events, calculate metrics and find specific invocations. Helper tools discover available log fields and values for building precise filters.
Also available as
Connect
- 1Connect it in ChatGPT
Turn on Developer mode in ChatGPT (Settings → Security and login), open Plugins, select + and paste https://observability.mcp.cloudflare.com/mcp as the MCP server URL, then sign in with OAuth. Add it to a chat from the composer's tools menu.
- 2Or add it to Codex or the API
codex mcp add cloudflare-observability --url https://observability.mcp.cloudflare.com/mcp codex mcp login cloudflare-observabilityThe login command opens a browser to finish OAuth.
Configs are generated from the publisher's documented endpoint. Check their docs for plan requirements and scopes. New to this? Read the step-by-step tutorial.
Tools 3
query_worker_observabilityobservability_keysobservability_valuesThings to ask
- “Show error logs for my api Worker in the last hour”
- “What is the p99 CPU time for my checkout Worker today?”
- “Find invocations that returned 500 status codes”