KrakenD

KrakenD Metrics API

The Metrics API from KrakenD — 1 operation(s) for metrics.

Documentation GitHub OpenAPI

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OpenAPI Specification

openapi: 3.1.0
info:
  title: KrakenD Service Debug Metrics API
  description: The KrakenD Service API exposes built-in operational endpoints for health checking, debugging, and metrics collection on a running KrakenD API Gateway instance. The health endpoint (/__health) is enabled by default and returns the gateway status. The debug endpoint (/__debug) is available when the server is started with the -d flag or debug_endpoint is set to true. The extended metrics endpoint (/__stats) runs on a separate port and provides detailed runtime metrics when the telemetry/metrics extra_config is enabled.
  version: 2.9.0
  contact:
    name: KrakenD
    url: https://www.krakend.io
  license:
    name: Apache 2.0
    url: https://www.apache.org/licenses/LICENSE-2.0.html
servers:
- url: http://localhost:8080
  description: Default KrakenD gateway port
- url: http://localhost:8090
  description: Default KrakenD metrics port
tags:
- name: Metrics
paths:
  /__stats/:
    get:
      operationId: getStats
      summary: KrakenD Extended metrics
      description: Returns extended runtime metrics for the KrakenD instance including router, proxy, and backend statistics. This endpoint runs on a separate port (default 8090) and requires the telemetry/metrics extra_config to be enabled. Metrics are refreshed based on the configured collection_time interval.
      tags:
      - Metrics
      responses:
        '200':
          description: Successful response with runtime metrics.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/StatsResponse'
components:
  schemas:
    StatsResponse:
      type: object
      properties:
        cmdline:
          type: array
          items:
            type: string
          description: Command line arguments used to start the process.
        memstats:
          type: object
          description: Go runtime memory statistics.
        router:
          type: object
          description: Router-level metrics including request counts and latencies.
        proxy:
          type: object
          description: Proxy-level metrics for endpoint aggregation.
        backend:
          type: object
          description: Backend-level metrics per backend target.