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Introduction

Metrics provide aggregated, quantitative data about the performance and behavior of your APIs over time. They offer insights into the overall health of the system. Tyk supports several ways to export metrics, from different components:

OpenTelemetry Metrics

Availability

Tyk Gateway Metrics

Tyk Gateway natively exports metrics via the OpenTelemetry Protocol (OTLP). When enabled, it pushes standard RED metrics (Rate, Errors, Duration) plus Go runtime and configuration state metrics to any OTLP-compatible backend. For a complete reference, see:
  • Default Metrics: all metrics exported automatically (RED, Go runtime, configuration state)
  • Custom Metrics: defining custom counters and histograms with your own dimensions

Control Plane Metrics

Tyk Dashboard, Tyk MDCB, and Tyk Developer Portal export metrics through the same OTLP pipeline: For every metric, see Default Metrics.

Supported Backends

The metrics exporter sends data using standard OTLP, so any OTLP-compatible backend works. Some common setups: Via OTel Collector (recommended for self-managed): Route metrics from the OTel Collector to Prometheus, Grafana Mimir, Splunk, or other backends. The Collector also handles batching, retries, and fanout to multiple destinations. Direct OTLP: Send directly to backends that natively accept OTLP, such as:
  • New Relic (otlp.nr-data.net:4317)
  • Dynatrace (via the Dynatrace OTLP endpoint)
  • Grafana Cloud Mimir

Configuration Options

Metrics can be enabled independently; distributed tracing does not need to be configured. To configure distributed tracing alongside metrics, see Distributed Tracing.

Enable Metrics

If you only need metrics export, configure the metrics sub-object directly:
Tyk Dashboard and Tyk MDCB use the same opentelemetry.metrics block, in tyk_analytics.conf and tyk_sink.conf respectively. For a worked example of both, see Get Started with Tyk Observability. Tyk Developer Portal uses a separate OpenTelemetry.Metrics configuration section instead of the opentelemetry.metrics block. Set it with the PORTAL_OPENTELEMETRY_METRICS_* or TYK_PORTAL_OPENTELEMETRY_METRICS_* environment variables. For a worked example, see Configure Tyk Developer Portal. For what it exports, see Control Plane Metrics.

Traces and Metrics Together

When both are configured, metrics.endpoint defaults to the traces.endpoint value if not set explicitly:
This is enough to start exporting default Tyk Gateway metrics to the same OTLP endpoint configured for traces.

Reference

All fields are also documented in the Tyk Gateway Configuration Reference.
Root-level configuration such as opentelemetry.enabled and opentelemetry.endpoint still work for traces but are deprecated. Use opentelemetry.traces.* for new deployments.

Control Plane Fields

Tyk Dashboard and Tyk MDCB add two fields that Tyk Gateway does not have: Tyk Developer Portal sets deployment.environment with its DeploymentEnvironment field, which also defaults to unknown.

Metric Family Flags

Each metric family has its own on/off flag in the metrics configuration of its component. Every flag defaults to true, so when you enable metrics, the component exports all of its families. To turn off a family, set its flag to false. Each flag also has an environment variable, for example TYK_DB_OPENTELEMETRY_METRICS_GATEWAYMETRICS, TYK_MDCB_OPENTELEMETRY_METRICS_RPCMETRICS, or PORTAL_OPENTELEMETRY_METRICS_PROVIDERMETRICS. Tyk Dashboard has two more settings under opentelemetry.metrics.objects_metrics: For what a metric family is, see Metric Groups and Families.

Cardinality Control

Each unique combination of dimension values creates a separate time series in your metrics backend. For example, a metric with 100 APIs × 5 methods × 10 status codes = 5,000 time series. Adding dimensions that have many possible values (such as user IDs or free-text fields) can create millions of time series, causing high storage costs and potential out-of-memory crashes. The opentelemetry.metrics.cardinality_limit field caps how many unique attribute combinations are tracked per metric instrument:
  • Default limit: 2,000 combinations per instrument
  • When the limit is reached: New attribute combinations are aggregated into an overflow bucket marked with otel.metric.overflow=true
  • Existing time series are not affected; only new combinations are blocked
  • To disable the limit: Set to 0 (not recommended for production)
You can alert on cardinality overflow using this PromQL expression:
This lets you catch runaway cardinality before costs escalate. The same limit and overflow behavior apply to Tyk Dashboard, Tyk MDCB, and Tyk Developer Portal. Their label sets depend on fleet and organization size, not on request-level data. Overflow is much rarer than on Tyk Gateway, but you can use the same PromQL pattern to alert on it.

Tyk Cloud

On Tyk Cloud, metrics export is enabled per environment via the Telemetry settings in the Tyk Cloud UI. A Telemetry entitlement is required; contact your account team if it is not available on your plan. Supported export destinations on Tyk Cloud:
  • New Relic
  • Elastic (Elasticsearch / OpenSearch)
  • Dynatrace
  • Custom OTLP endpoint (any OTLP-compatible backend)
Tyk Cloud exports the default gateway metrics through the telemetry pipeline. Custom metric configuration is not currently self-service on Tyk Cloud; contact Tyk support to request it. Tyk Dashboard and Tyk MDCB metrics are not available through the Tyk Cloud Telemetry settings.

Metrics Pumps

Tyk Pump can expose metrics derived from the traffic logs that Tyk Gateway stores in Redis, the same traffic logs used for Tyk Dashboard Analytics. This is an older, separate mechanism: computed by Tyk Pump after the fact from traffic log records, not by the gateway in real time, so it can only produce traffic-derived counters and histograms (status codes, latency, and whatever traffic log fields you tag). It has no visibility into the gateway’s own runtime health or configuration state. There are three Metrics Pumps, documented here, that target different backends:
  • Prometheus
  • DogStatsD (Datadog)
  • StatsD (not to be confused with the native Tyk Gateway StatsD instrumentation)
Metrics Pumps aren’t deprecated, and existing deployments can keep using them, but we recommend OpenTelemetry Metrics where you can: it’s more powerful and flexible, and doesn’t require the Redis and Tyk Pump hop to get metrics out.

Deprecated Backends

New Relic Instrumentation

This instrumentation method is deprecated. New Relic users should migrate to the OpenTelemetry metrics exporter with a New Relic OTLP endpoint. The OTel approach provides richer metrics, more dimensions, and does not require a New Relic agent license.
Tyk Gateway has been instrumented for New Relic metrics since v2.5. Add the following to tyk.conf to enable it:

StatsD Instrumentation

This instrumentation method is deprecated. We recommend using OpenTelemetry metrics instead, which provides richer metrics and works with any modern observability backend.
Tyk Gateway, Tyk Pump, and Tyk Dashboard have been instrumented for StatsD monitoring. StatsD is a network daemon that listens for statistics sent over UDP or TCP and forwards aggregates to pluggable backend services.
Not to be confused with Tyk Pump’s statsd/dogstatsd Metrics Pumps above: those export traffic-log-derived request metrics, a different mechanism from this internal system instrumentation.

Configuring StatsD

To enable StatsD instrumentation, set the environment variable TYK_INSTRUMENTATION=1 and configure statsd_connection_string in each component’s config file. This field specifies how to connect to the StatsD server (host, port, and optional configuration). You can also set statsd_prefix to a custom value to differentiate metrics between environments (for example, separate prefixes for production and staging). For Tyk Pump specifically, both fields sit at the top level of pump.conf, alongside log_level and the other global settings.

StatsD Keys