openapi: 3.1.0
info:
  title: Linkerd Proxy Admin Discovery Routes API
  description: The Linkerd proxy exposes an admin HTTP server on each meshed pod, providing health check endpoints, readiness probes, Prometheus-compatible metrics, and runtime diagnostic information. By default this server listens on port 4191.
  version: 2.x
  contact:
    name: Linkerd
    url: https://linkerd.io/
  license:
    name: Apache 2.0
    url: https://www.apache.org/licenses/LICENSE-2.0
servers:
- url: http://localhost:4191
  description: Linkerd proxy admin server (default port)
tags:
- name: Routes
  description: Per-route metrics
paths:
  /api/v1/top-routes:
    post:
      operationId: getTopRoutes
      summary: Linkerd Get top routes for a resource
      description: Returns per-route metrics for the specified resource. Requires a ServiceProfile to be defined for the service receiving requests. This powers the linkerd viz routes command.
      tags:
      - Routes
      requestBody:
        required: true
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/TopRoutesRequest'
      responses:
        '200':
          description: Top routes response
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/TopRoutesResponse'
        '500':
          description: Internal server error
components:
  schemas:
    RouteTable:
      type: object
      properties:
        rows:
          type: array
          items:
            type: object
            properties:
              route:
                type: string
              time_window:
                type: string
              authority:
                type: string
              stats:
                $ref: '#/components/schemas/BasicStats'
    TopRoutesResponse:
      type: object
      properties:
        ok:
          type: object
          properties:
            routes:
              type: array
              items:
                $ref: '#/components/schemas/RouteTable'
        error:
          type: object
          properties:
            error:
              type: string
    TopRoutesRequest:
      type: object
      properties:
        resource_type:
          type: string
        resource_name:
          type: string
        namespace:
          type: string
        time_window:
          type: string
          default: 1m
      required:
      - resource_type
    BasicStats:
      type: object
      properties:
        success_count:
          type: integer
          format: int64
        failure_count:
          type: integer
          format: int64
        latency_ms_p50:
          type: number
          format: double
        latency_ms_p95:
          type: number
          format: double
        latency_ms_p99:
          type: number
          format: double
        actual_success_count:
          type: integer
          format: int64
        actual_failure_count:
          type: integer
          format: int64
externalDocs:
  description: Linkerd Proxy Configuration Reference
  url: https://linkerd.io/2-edge/reference/proxy-configuration/