Sentry
Official MCPThe reference example of a debugging-loop server: official, remote, free tier, and it pairs with sentry-cli for release work.
The reference example of a debugging-loop server: official, remote, free tier, and it pairs with sentry-cli for release work.
Free, open-source and write-capable on dashboards — the default pick if you self-host your observability stack.
Both hosted and local options, plus a published MCP OpenAPI spec — one of the more thoughtfully shipped on-call servers. Write scopes touch live incidents, so gate them.
Deepest telemetry surface of any official server, but every tool inherits Datadog's per-product entitlements — you can connect and still be missing modules.
Documented first-party server with a real free tier and a published tool reference — read-focused, which is the right default for production telemetry.
Query-side only, but that is exactly the job — good tracing answers with a plain API key and a free tier to test on.