Loki HTTP API

openapi: 3.1.0
info:
  title: Loki HTTP API
  description: >-
    Minimal OpenAPI 3.1 specification for the Grafana Loki HTTP API,
    covering log ingest, queries, labels, series, status, ring, flush,
    rules, and deletion endpoints.
  version: 1.0.0
x-generated-from: https://grafana.com/docs/loki/latest/reference/loki-http-api/
x-generated-by: claude-crawl-2026-05-08
servers:
  - url: http://localhost:3100
    description: Default Loki HTTP server
paths:
  /loki/api/v1/push:
    post:
      operationId: pushLogs
      summary: Push log entries to Loki
      responses:
        '204':
          description: Logs accepted
        default:
          description: Error response
  /otlp/v1/logs:
    post:
      operationId: pushOtlpLogs
      summary: Push OTLP log entries
      responses:
        '204':
          description: Logs accepted
        default:
          description: Error response
  /loki/api/v1/query:
    get:
      operationId: query
      summary: Run a LogQL instant query
      parameters:
        - name: query
          in: query
          schema:
            type: string
        - name: time
          in: query
          schema:
            type: string
      responses:
        '200':
          description: Query result
        default:
          description: Error response
  /loki/api/v1/query_range:
    get:
      operationId: queryRange
      summary: Run a LogQL range query
      parameters:
        - name: query
          in: query
          schema:
            type: string
        - name: start
          in: query
          schema:
            type: string
        - name: end
          in: query
          schema:
            type: string
      responses:
        '200':
          description: Query result
        default:
          description: Error response
  /loki/api/v1/labels:
    get:
      operationId: listLabels
      summary: List label names
      responses:
        '200':
          description: List of label names
        default:
          description: Error response
  /loki/api/v1/label/{name}/values:
    get:
      operationId: getLabelValues
      summary: List values for a label
      parameters:
        - name: name
          in: path
          required: true
          schema:
            type: string
      responses:
        '200':
          description: Label values
        default:
          description: Error response
  /loki/api/v1/series:
    get:
      operationId: listSeries
      summary: List series matching matchers
      responses:
        '200':
          description: Series result
        default:
          description: Error response
    post:
      operationId: postSeries
      summary: List series matching matchers via POST
      responses:
        '200':
          description: Series result
        default:
          description: Error response
  /loki/api/v1/index/stats:
    get:
      operationId: indexStats
      summary: Retrieve index stats
      responses:
        '200':
          description: Index statistics
        default:
          description: Error response
  /loki/api/v1/index/volume:
    get:
      operationId: indexVolume
      summary: Retrieve index volume
      responses:
        '200':
          description: Volume result
        default:
          description: Error response
  /loki/api/v1/index/volume_range:
    get:
      operationId: indexVolumeRange
      summary: Retrieve index volume over a range
      responses:
        '200':
          description: Volume range result
        default:
          description: Error response
  /loki/api/v1/patterns:
    get:
      operationId: getPatterns
      summary: Retrieve detected log patterns
      responses:
        '200':
          description: Patterns result
        default:
          description: Error response
  /loki/api/v1/tail:
    get:
      operationId: tailLogs
      summary: Tail log entries via WebSocket
      responses:
        '200':
          description: Tail stream
        default:
          description: Error response
  /ready:
    get:
      operationId: ready
      summary: Readiness probe
      responses:
        '200':
          description: Ready
        default:
          description: Error response
  /metrics:
    get:
      operationId: metrics
      summary: Prometheus metrics endpoint
      responses:
        '200':
          description: Metrics text exposition
        default:
          description: Error response
  /config:
    get:
      operationId: getConfig
      summary: Retrieve the running configuration
      responses:
        '200':
          description: Configuration
        default:
          description: Error response
  /loki/api/v1/status/buildinfo:
    get:
      operationId: buildInfo
      summary: Retrieve build information
      responses:
        '200':
          description: Build info
        default:
          description: Error response
  /loki/api/v1/rules:
    get:
      operationId: listAllRules
      summary: List all ruler namespaces and groups
      responses:
        '200':
          description: Rules list
        default:
          description: Error response
  /loki/api/v1/rules/{namespace}:
    get:
      operationId: listNamespaceRules
      summary: List rule groups in a namespace
      parameters:
        - name: namespace
          in: path
          required: true
          schema:
            type: string
      responses:
        '200':
          description: Rule groups
        default:
          description: Error response
    post:
      operationId: createNamespaceRules
      summary: Create or update rule groups in a namespace
      parameters:
        - name: namespace
          in: path
          required: true
          schema:
            type: string
      responses:
        '202':
          description: Accepted
        default:
          description: Error response
    delete:
      operationId: deleteNamespaceRules
      summary: Delete all rule groups in a namespace
      parameters:
        - name: namespace
          in: path
          required: true
          schema:
            type: string
      responses:
        '204':
          description: Deleted
        default:
          description: Error response
  /loki/api/v1/rules/{namespace}/{groupName}:
    get:
      operationId: getRuleGroup
      summary: Retrieve a rule group
      parameters:
        - name: namespace
          in: path
          required: true
          schema:
            type: string
        - name: groupName
          in: path
          required: true
          schema:
            type: string
      responses:
        '200':
          description: Rule group
        default:
          description: Error response
    delete:
      operationId: deleteRuleGroup
      summary: Delete a rule group
      parameters:
        - name: namespace
          in: path
          required: true
          schema:
            type: string
        - name: groupName
          in: path
          required: true
          schema:
            type: string
      responses:
        '204':
          description: Deleted
        default:
          description: Error response
  /loki/api/v1/delete:
    get:
      operationId: listDeleteRequests
      summary: List delete requests
      responses:
        '200':
          description: Delete requests
        default:
          description: Error response
    post:
      operationId: createDeleteRequest
      summary: Create a delete request
      responses:
        '204':
          description: Accepted
        default:
          description: Error response
    delete:
      operationId: cancelDeleteRequest
      summary: Cancel a delete request
      responses:
        '204':
          description: Cancelled
        default:
          description: Error response
  /loki/api/v1/format_query:
    get:
      operationId: formatQuery
      summary: Format a LogQL query
      responses:
        '200':
          description: Formatted query
        default:
          description: Error response
components: {}