Open-source Grafana MCP alternatives
Grafana Labs' MCP server is open source, in keeping with Grafana itself, so you can read which dashboard, Prometheus, Loki, alert, and OnCall calls an agent can make before you wire it in. Every server below publishes its source too.
Reading the repo matters in observability, where the agent touches production telemetry and can edit dashboards or trigger queries. Open source lets you audit the exact API surface, pin a version, and patch behaviour rather than waiting on a vendor.
The 8 best open-source alternatives
Sentry's server is open source and focused on errors: pull issues, stack traces, and events, and run Seer root-cause analysis, with code you can read before granting access to production exceptions.
Set up Sentry →Talking straight to the backend behind Grafana, the open-source Prometheus server runs PromQL instant and range queries, discovers metrics and metadata, and inspects scrape targets, all auditable in source.
Set up Prometheus →SigNoz is open source end to end, and its server reaches traces, logs, metrics, dashboards, and alerts in an OpenTelemetry-native stack you can host and inspect yourself.
Set up SigNoz →For on-call, PagerDuty's open-source server exposes incidents, services, schedules, teams, and orchestrations across 64 tools, read-only by default, with a repo you can read end to end.
Set up PagerDuty →- DatadogOfficial
Datadog's server is open source even though the platform is hosted: search logs, query metrics, pull APM traces, inspect monitors, and investigate incidents, with code you can audit first.
Set up Datadog → - HoneycombOfficial
Honeycomb publishes its server source: query traces, metrics, and logs, run BubbleUp, and manage Boards, Triggers, and SLOs, so you can confirm the scope before connecting it.
Set up Honeycomb → - New RelicOfficial
New Relic's server is open source and hosted: run NRQL, search entities, analyze golden metrics, and triage incidents, with source you can read despite the managed backend.
Set up New Relic → For CloudWatch and related signals, the open-source AWS Labs server runs any AWS CLI command with validation and a read-only mode, reaching AWS observability from a repo you control.
Set up AWS (AWS Labs) →
How to choose
Among the open-source options, Prometheus and SigNoz let you run and audit the backend itself rather than only the client. Sentry, Datadog, Honeycomb, and New Relic publish their servers while keeping the platform hosted. PagerDuty covers on-call, and the AWS server reaches CloudWatch through the CLI. Read the repo before you let an agent edit dashboards or run queries against production.
FAQ
- Is the Grafana MCP server open source?
- Yes. Grafana Labs publishes the server's source, matching Grafana's own open-source roots, so you can audit which dashboard, query, alert, and OnCall calls an agent can make. Every alternative on this page ships its code publicly too.
- Which open-source alternative lets me self-host the whole stack?
- Prometheus and SigNoz. Both publish their code and run on your own infrastructure, so the telemetry backend and the server are under your control. Sentry, Datadog, Honeycomb, and New Relic open-source the server but keep the platform hosted.