Grafana Loki

Loki HTTP API

The Grafana Loki HTTP API — 40 documented endpoints for pushing logs (native and OTLP), querying with LogQL over instants and ranges, discovering labels, series, patterns and detected fields, streaming a live tail over WebSocket, managing Prometheus-shaped alerting and recording rule groups, submitting and cancelling log deletion requests, and reading component status and ring state. Loki is self-hosted software, so the base host is whichever address the operator binds; the documented default port is 3100 and TLS is terminated by the operator or a fronting proxy. Authorization is explicitly not part of this API.

GitHub

Documentation

📖
Documentation
https://grafana.com/docs/loki/latest/
📖
APIReference
https://grafana.com/docs/loki/latest/reference/loki-http-api/
📖
GettingStarted
https://grafana.com/docs/loki/latest/get-started/

Other Resources

🔗
Protobuf
https://raw.githubusercontent.com/api-evangelist/grafana-loki/refs/heads/main/grpc/grafana-loki-push.proto
🔗
Protobuf
https://raw.githubusercontent.com/api-evangelist/grafana-loki/refs/heads/main/grpc/grafana-loki-logproto.proto
🔗
Protobuf
https://raw.githubusercontent.com/api-evangelist/grafana-loki/refs/heads/main/grpc/grafana-loki-rules.proto
🔗
APIsJSON
https://raw.githubusercontent.com/api-evangelist/grafana-loki/refs/heads/main/apis.yml

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API entry from apis.yml

apis.yml Raw ↑ 
aid: grafana-loki:loki-http-api
name: Loki HTTP API
description: The Grafana Loki HTTP API — 40 documented endpoints for pushing logs (native and OTLP), querying
  with LogQL over instants and ranges, discovering labels, series, patterns and detected fields, streaming
  a live tail over WebSocket, managing Prometheus-shaped alerting and recording rule groups, submitting
  and cancelling log deletion requests, and reading component status and ring state. Loki is self-hosted
  software, so the base host is whichever address the operator binds; the documented default port is 3100
  and TLS is terminated by the operator or a fronting proxy. Authorization is explicitly not part of this
  API.
humanURL: https://grafana.com/docs/loki/latest/reference/loki-http-api/
baseURL: http://{loki-host}:3100
tags:
- Logs
- Logging
- Observability
- LogQL
- OpenTelemetry
properties:
- type: Documentation
  url: https://grafana.com/docs/loki/latest/
- type: APIReference
  url: https://grafana.com/docs/loki/latest/reference/loki-http-api/
- type: GettingStarted
  url: https://grafana.com/docs/loki/latest/get-started/
- type: Protobuf
  url: grpc/grafana-loki-push.proto
  name: Loki Pusher service (proto3)
- type: Protobuf
  url: grpc/grafana-loki-logproto.proto
  name: Loki Querier and StreamData services (proto3)
- type: Protobuf
  url: grpc/grafana-loki-rules.proto
  name: Loki ruler rule group messages (proto3)