Tempo

Tempo Health API

Health and readiness endpoints

Documentation GitHub OpenAPI

Operations 2

GET /ready Check Readiness #

GET /metrics Get Prometheus Metrics #

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OpenAPI Specification

openapi: 3.2.0
info:
  title: Grafana Tempo HTTP Health API
  description: The Grafana Tempo HTTP API provides endpoints for querying distributed traces, searching spans with TraceQL, discovering tag keys and values, and generating metrics from trace data. Tempo is compatible with Jaeger, Zipkin, and OpenTelemetry trace ingestion and query protocols. The API runs on the Tempo HTTP port (default 3200).
  version: 2.x
  contact:
    name: Grafana Tempo Community
    url: https://community.grafana.com/c/grafana-tempo/
    email: tempo@grafana.com
  license:
    name: Apache 2.0
    url: https://www.apache.org/licenses/LICENSE-2.0
servers:
- url: http://localhost:3200
  description: Local Tempo instance (default)
- url: http://tempo:3200
  description: Kubernetes service endpoint
tags:
- name: Health
  description: Health and readiness endpoints
paths:
  /ready:
    get:
      operationId: checkReady
      summary: Check Readiness
      description: Readiness probe endpoint. Returns 200 OK when Tempo is ready to serve requests. Used by Kubernetes readiness probes and load balancers.
      tags:
      - Health
      responses:
        '200':
          description: Tempo is ready
          content:
            text/plain:
              schema:
                type: string
                example: ready
        '500':
          description: Tempo is not yet ready
  /metrics:
    get:
      operationId: getPrometheusMetrics
      summary: Get Prometheus Metrics
      description: Exposes Tempo's own operational Prometheus metrics including ingestion rate, query latency, cache hit rates, and storage backend metrics. Scraped by Prometheus or Grafana Agent for Tempo self-monitoring.
      tags:
      - Health
      responses:
        '200':
          description: Prometheus metrics in text exposition format
          content:
            text/plain:
              schema:
                type: string
externalDocs:
  description: Grafana Tempo API Documentation
  url: https://grafana.com/docs/tempo/latest/api_docs/