Prometheus

Collect metrics from agentgateway with Prometheus

Agentgateway exposes Prometheus-compatible metrics for monitoring and alerting.

Metrics endpoint

Agentgateway exposes metrics on port 15020 by default:

curl http://localhost:15020/metrics

Available metrics

Request metrics

Metric	Type	Description
agentgateway_requests_total	Counter	Total number of requests
agentgateway_request_duration_seconds	Histogram	Request duration
agentgateway_request_size_bytes	Histogram	Request size
agentgateway_response_size_bytes	Histogram	Response size

Connection metrics

Metric	Type	Description
agentgateway_connections_active	Gauge	Active connections
agentgateway_connections_total	Counter	Total connections

MCP metrics

Metric	Type	Description
agentgateway_mcp_sessions_active	Gauge	Active MCP sessions
agentgateway_mcp_requests_total	Counter	Total MCP requests by method

LLM metrics

Metric	Type	Description
agentgateway_llm_requests_total	Counter	Total LLM requests
agentgateway_llm_tokens_total	Counter	Total tokens (input/output)
agentgateway_llm_request_duration_seconds	Histogram	LLM request duration

Prometheus configuration

Add agentgateway to your Prometheus configuration:

# prometheus.yml
scrape_configs:
  - job_name: 'agentgateway'
    static_configs:
      - targets: ['localhost:15020']
    scrape_interval: 15s

Docker Compose example

version: '3'
services:
  agentgateway:
    image: cr.agentgateway.dev/agentgateway:latest
    ports:
      - "3000:3000"
      - "15020:15020"
    volumes:
      - ./config.yaml:/config.yaml:ro
    command: ["-f", "/config.yaml"]

  prometheus:
    image: prom/prometheus:latest
    ports:
      - "9090:9090"
    volumes:
      - ./prometheus.yml:/etc/prometheus/prometheus.yml
    command:
      - '--config.file=/etc/prometheus/prometheus.yml'

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