The request names OpenTelemetry, so it comes first: an open-source, vendor-neutral observability framework providing APIs, SDKs, agents and collector services for traces and metrics 1. Alternatives that also collect or analyze telemetry, each with its own backend or instrumentation path, follow.

1. 1

   OpenTelemetryopentelemetry.ioverified and signed

   Open-source observability framework offering a single set of APIs, libraries, agents and collector services to capture distributed traces and metrics, exportable to any backend 1; its action records describe the Telemetry and OpenTelemetry actions 11.

   WebsiteDocs

   +16 community tools built for it

   for agents: Telemetry · OpenTelemetry · Telemetry

2. 2

   Grafana Cloudgrafana.comverified and signed

   OpenTelemetry-native platform unifying metrics, logs, traces and profiles, with an opentelemetry action to instrument apps and ship telemetry to Grafana Cloud or self-hosted backends 616.

   WebsiteDocsPricingGet started

   official:MCP server · GrafanaCLI · grafanaskill · dashboardingskill · promqlskill · opentelemetry+35 community tools built for it

   for agents: opentelemetry · app-observability · send-data

3. 3

   Sentrysentry.ioverified and signed

   Application performance monitoring and error tracking that configures an OpenTelemetry Collector with a Sentry exporter for project routing 2.

   WebsiteDocsPricingGet started

   official:MCP server · @sentry/mcp-serverSDK · @sentry/nodeCLI · sentry-clirepository · sentry-pythonskill · sentry-cli+49 community tools built for it

   for agents: sentry-otel-exporter-setup · sentry-feature-setup · sentry-instrument

4. 4

   Elasticelastic.coverified and signed

   Search and observability platform offering the Elastic Distribution of OpenTelemetry (EDOT) SDKs for automatic tracing, metrics and logs in .NET and Java 717.

   WebsiteDocsPricingGet started

   official:MCP server · Elasticsearch MCP ServerSDK · elasticsearchlibrary · Elasticsearch.Netskill · elasticsearch-esql+29 community tools built for it

   for agents: observability-edot-dotnet-instrument · observability-onboarding · observability-edot-java-instrument

5. 5

   Prometheusprometheus.ioverified and signed

   Open-source monitoring system with a dimensional data model, PromQL query language and time series database for metrics and alerting 9.

   WebsiteDocs

   +47 community tools built for it

   for agents: instrumentation · monitoring · prometheus