# Monitoring

> An index and topic collection covering API monitoring, application performance monitoring, observability, uptime monitoring, log aggregation, error tracking, distributed tracing, and incident response. API monitoring spans synthetic checks against public endpoints, real-user and application perfo...

This is the **Monitoring** topic area of [API Evangelist](https://apievangelist.com) — a network of focused knowledge bases drawn from 16 years of independent API research by Kin Lane. Browse all areas at https://apievangelist.com/areas/.

## Services & Tools
- [Airbrake](https://providers.apis.io/providers/airbrake/) (repo: https://github.com/api-evangelist/airbrake)
- [Amazon CloudWatch](https://providers.apis.io/providers/aws-cloudwatch/) (repo: https://github.com/api-evangelist/aws-cloudwatch)
- [AppDynamics](https://providers.apis.io/providers/appdynamics/) (repo: https://github.com/api-evangelist/appdynamics)
- [APIToolkit](https://providers.apis.io/providers/apitoolkit/) (repo: https://github.com/api-evangelist/apitoolkit)
- [Assertible](https://providers.apis.io/providers/assertible/) (repo: https://github.com/api-evangelist/assertible)
- [Axiom](https://providers.apis.io/providers/axiom/) (repo: https://github.com/api-evangelist/axiom)
- [Azure Monitor](https://providers.apis.io/providers/microsoft-azure-monitor/) (repo: https://github.com/api-evangelist/microsoft-azure-monitor)
- [Better Stack](https://providers.apis.io/providers/better-stack/) (repo: https://github.com/api-evangelist/better-stack)
- [BigPanda](https://providers.apis.io/providers/bigpanda/) (repo: https://github.com/api-evangelist/bigpanda)
- [Bugsnag](https://providers.apis.io/providers/bugsnag/) (repo: https://github.com/api-evangelist/bugsnag)
- [Checkly](https://providers.apis.io/providers/checkly/) (repo: https://github.com/api-evangelist/checkly)
- [Chronosphere](https://providers.apis.io/providers/chronosphere/) (repo: https://github.com/api-evangelist/chronosphere)
- [Coralogix](https://providers.apis.io/providers/coralogix/) (repo: https://github.com/api-evangelist/coralogix)
- [Cribl](https://providers.apis.io/providers/cribl/) (repo: https://github.com/api-evangelist/cribl)
- [Datadog](https://providers.apis.io/providers/datadog/) (repo: https://github.com/api-evangelist/datadog)
- [Dynatrace](https://providers.apis.io/providers/dynatrace/) (repo: https://github.com/api-evangelist/dynatrace)
- [Elastic Observability](https://providers.apis.io/providers/elastic-observability/) (repo: https://github.com/api-evangelist/elastic-observability)
- [FireHydrant](https://providers.apis.io/providers/firehydrant/) (repo: https://github.com/api-evangelist/firehydrant)
- [Google Cloud Monitoring](https://providers.apis.io/providers/google-cloud-monitoring/) (repo: https://github.com/api-evangelist/google-cloud-monitoring)
- [Grafana](https://providers.apis.io/providers/grafana/) (repo: https://github.com/api-evangelist/grafana)
- [Graylog](https://providers.apis.io/providers/graylog/) (repo: https://github.com/api-evangelist/graylog)
- [Honeybadger](https://providers.apis.io/providers/honeybadger/) (repo: https://github.com/api-evangelist/honeybadger)
- [Honeycomb](https://providers.apis.io/providers/honeycomb/) (repo: https://github.com/api-evangelist/honeycomb)
- [Incident.io](https://providers.apis.io/providers/incident-io/) (repo: https://github.com/api-evangelist/incident-io)
- [Instana](https://providers.apis.io/providers/instana/) (repo: https://github.com/api-evangelist/instana)
- [Jaeger](https://providers.apis.io/providers/jaeger/) (repo: https://github.com/api-evangelist/jaeger)
- [Lightstep](https://providers.apis.io/providers/lightstep/) (repo: https://github.com/api-evangelist/lightstep)
- [LogicMonitor](https://providers.apis.io/providers/logicmonitor/) (repo: https://github.com/api-evangelist/logicmonitor)
- [LogRocket](https://providers.apis.io/providers/logrocket/) (repo: https://github.com/api-evangelist/logrocket)
- [Middleware](https://providers.apis.io/providers/middleware/) (repo: https://github.com/api-evangelist/middleware)
- [Moogsoft](https://providers.apis.io/providers/moogsoft/) (repo: https://github.com/api-evangelist/moogsoft)
- [Nagios](https://providers.apis.io/providers/nagios/) (repo: https://github.com/api-evangelist/nagios)
- [New Relic](https://providers.apis.io/providers/new-relic/) (repo: https://github.com/api-evangelist/new-relic)
- [Nobl9](https://providers.apis.io/providers/nobl9/) (repo: https://github.com/api-evangelist/nobl9)
- [NodePing](https://providers.apis.io/providers/nodeping/) (repo: https://github.com/api-evangelist/nodeping)
- [OneUptime](https://providers.apis.io/providers/oneuptime/) (repo: https://github.com/api-evangelist/oneuptime)
- [OpenObserve](https://providers.apis.io/providers/openobserve/) (repo: https://github.com/api-evangelist/openobserve)
- [OpenReplay](https://providers.apis.io/providers/openreplay/) (repo: https://github.com/api-evangelist/openreplay)
- [OpenTelemetry](https://providers.apis.io/providers/opentelemetry/) (repo: https://github.com/api-evangelist/opentelemetry)
- [OpsGenie](https://providers.apis.io/providers/opsgenie/) (repo: https://github.com/api-evangelist/opsgenie)
- [PagerDuty](https://providers.apis.io/providers/pagerduty/) (repo: https://github.com/api-evangelist/pagerduty)
- [Pingdom](https://providers.apis.io/providers/pingdom/) (repo: https://github.com/api-evangelist/pingdom)
- [Prometheus](https://providers.apis.io/providers/prometheus/) (repo: https://github.com/api-evangelist/prometheus)
- [Rollbar](https://providers.apis.io/providers/rollbar/) (repo: https://github.com/api-evangelist/rollbar)
- [Rootly](https://providers.apis.io/providers/rootly/) (repo: https://github.com/api-evangelist/rootly)
- [Sentry](https://providers.apis.io/providers/sentry/) (repo: https://github.com/api-evangelist/sentry)
- [SigNoz](https://providers.apis.io/providers/signoz/) (repo: https://github.com/api-evangelist/signoz)
- [SIGNL4](https://providers.apis.io/providers/signl4/) (repo: https://github.com/api-evangelist/signl4)
- [Splunk](https://providers.apis.io/providers/splunk/) (repo: https://github.com/api-evangelist/splunk)
- [Splunk On-Call (VictorOps)](https://providers.apis.io/providers/victorops/) (repo: https://github.com/api-evangelist/victorops)
- [Squadcast](https://providers.apis.io/providers/squadcast/) (repo: https://github.com/api-evangelist/squadcast)
- [Statuspage](https://providers.apis.io/providers/statuspage/) (repo: https://github.com/api-evangelist/statuspage)
- [Sumo Logic](https://providers.apis.io/providers/sumo-logic/) (repo: https://github.com/api-evangelist/sumo-logic)
- [Sysdig](https://providers.apis.io/providers/sysdig/) (repo: https://github.com/api-evangelist/sysdig)
- [Traceable](https://providers.apis.io/providers/traceable/) (repo: https://github.com/api-evangelist/traceable)
- [Treblle](https://providers.apis.io/providers/treblle/) (repo: https://github.com/api-evangelist/treblle)
- [Uptrace](https://providers.apis.io/providers/uptrace/) (repo: https://github.com/api-evangelist/uptrace)
- [VictoriaMetrics](https://providers.apis.io/providers/victoriametrics/) (repo: https://github.com/api-evangelist/victoriametrics)
- [xMatters](https://providers.apis.io/providers/xmatters/) (repo: https://github.com/api-evangelist/xmatters)
- [Zabbix](https://providers.apis.io/providers/zabbix/) (repo: https://github.com/api-evangelist/zabbix)
- [Zenduty](https://providers.apis.io/providers/zenduty/) (repo: https://github.com/api-evangelist/zenduty)
- [Zipkin](https://providers.apis.io/providers/zipkin/) (repo: https://github.com/api-evangelist/zipkin)

## Common Features
- **Synthetic and Uptime Monitoring**: Scheduled checks executed from globally distributed probes that hit HTTP, GraphQL, and gRPC endpoints to verify availability, response codes, latency, and content assertions before real users are affected.
- **Application Performance Monitoring (APM)**: Instrumentation of application code to capture request rates, latency percentiles, error rates, throughput, and slow endpoints across services, with code-level visibility into bottlenecks.
- **Distributed Tracing**: End-to-end traces that follow a single request across microservice boundaries, captured via OpenTelemetry, Jaeger, Zipkin, or vendor SDKs to expose where latency and errors accumulate in distributed systems.
- **Log Aggregation and Search**: Centralized collection, indexing, and search of structured and unstructured logs from applications, infrastructure, and edge components, with retention tiers and query languages for incident investigation.
- **Metrics and Time-Series**: Collection of dimensional metrics from infrastructure, runtimes, and custom application counters into time-series databases like Prometheus, VictoriaMetrics, or vendor backends for dashboards and alerting.
- **Error and Crash Tracking**: Capture of exceptions, stack traces, and user context from frontends and backends, with deduplication, regression detection, and release tracking provided by tools like Sentry, Rollbar, Bugsnag, and Honeybadger.
- **Alerting and Incident Response**: Threshold and anomaly-based alerts that flow into on-call rotations, escalation policies, and incident workflows handled by PagerDuty, Opsgenie, Incident.io, FireHydrant, and similar platforms.
- **Status Pages and Communication**: Public and private status pages that communicate incident status, scheduled maintenance, and component health to customers and stakeholders during and after incidents.

## Use Cases
- **External API Uptime Monitoring**: Operate scheduled synthetic checks against public APIs from multiple regions to verify endpoint availability, TLS validity, and latency, and alert on regressions before customers report them.
- **Microservice Performance Troubleshooting**: Use distributed tracing and APM to follow slow or failing requests across microservices, identify the responsible span, and correlate with logs and metrics from the same time window.
- **SRE Service Level Objective Tracking**: Define and track service level indicators and objectives using tools like Nobl9, Datadog, and Prometheus, computing error budgets and burn rates against availability and latency targets.
- **On-Call Paging and Escalation**: Route alerts from monitoring systems to the right on-call engineer with PagerDuty, Opsgenie, or Squadcast, including escalation policies, schedule rotations, and acknowledgement tracking.
- **Incident Response and Postmortems**: Coordinate incident response with platforms like Incident.io, FireHydrant, and Rootly that open Slack channels, assign roles, track timelines, and generate postmortem documents.
- **Frontend Error and Session Monitoring**: Capture frontend exceptions, console errors, network failures, and replayable user sessions with Sentry, LogRocket, OpenReplay, and Bugsnag to diagnose customer-facing bugs.
- **Status Page Communication**: Publish real-time status of API components on Statuspage, Better Stack, or OneUptime so customers and integrators know when degradations and outages affect them.
- **Cost-Optimized Log Pipelines**: Use observability pipelines like Cribl, Vector, and Fluent Bit to route, transform, and tier log data before it lands in expensive indexing backends, reducing observability spend.

## Related Areas
- [Observability](https://observability.apievangelist.com): A curated index of services, tooling, and open source solutions for API observability, monitoring, logging, tracing, ...
- [Analysis](https://analysis.apievangelist.com): A curated index of services, tooling, and open source solutions for API analysis, analytics, linting, traffic inspect...
- [Reliability](https://reliability.apievangelist.com): An index and topic collection covering site reliability engineering (SRE), reliability platforms, service level objec...
- [Service Mesh](https://service-mesh.apievangelist.com): Service mesh is a dedicated infrastructure layer for handling service-to-service communication in microservices archi...
- [Transparency](https://transparency.apievangelist.com): An index and topic collection covering public-facing transparency surfaces across the API and platform ecosystem. Tra...
- [Performance](https://performance.apievangelist.com): An index and topic collection covering API and web performance, including load testing, performance benchmarking, rea...

## More
- [Latest Monitoring stories](/stories/)
- [All API Evangelist topic areas](https://apievangelist.com/areas/)
- [API Evangelist network index (llms.txt)](https://apievangelist.com/llms.txt)