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OpenAPI Specification
openapi: 3.2.0
info:
title: Grafana Tempo HTTP Health Metrics 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: Metrics
description: Generate metrics from trace data
paths:
/api/metrics/query_range:
get:
operationId: queryMetricsRange
summary: Query Metrics Range
description: Generate time-series metrics from trace data using TraceQL metrics queries. Supports span rate, error rate, duration histograms, and custom metric generation from trace attributes.
tags:
- Metrics
parameters:
- name: q
in: query
required: true
description: TraceQL metrics query expression
schema:
type: string
example: rate({.service.name="order-service"}[5m])
- name: start
in: query
required: true
description: Start time as Unix epoch (seconds)
schema:
type: integer
format: int64
- name: end
in: query
required: true
description: End time as Unix epoch (seconds)
schema:
type: integer
format: int64
- name: step
in: query
required: false
description: Query step interval (e.g., 30s, 1m, 5m)
schema:
type: string
default: 1m
responses:
'200':
description: Metrics time-series data returned
content:
application/json:
schema:
$ref: '#/components/schemas/MetricsResult'
'400':
description: Invalid query
content:
application/json:
schema:
$ref: '#/components/schemas/Error'
components:
schemas:
MetricsResult:
type: object
description: Time-series metrics generated from trace data
properties:
status:
type: string
enum:
- success
- error
data:
type: object
properties:
resultType:
type: string
enum:
- matrix
result:
type: array
items:
type: object
properties:
metric:
type: object
description: Metric label set
values:
type: array
description: Time-value pairs
items:
type: array
items:
oneOf:
- type: integer
- type: string
Error:
type: object
description: API error response
properties:
error:
type: string
description: Error message
externalDocs:
description: Grafana Tempo API Documentation
url: https://grafana.com/docs/tempo/latest/api_docs/