openapi: 3.2.0
info:
  title: AI Gateway MCP Server Metrics API
  description: Universal MCP Gateway with OAuth integration - Modern Architecture
  version: 2.0.3290
tags:
- name: Metrics
paths:
  /metrics:
    get:
      summary: Get Prometheus Metrics
      description: 'FastAPI endpoint to serve Prometheus metrics.


        SECURITY: when ``METRICS_BEARER_TOKEN`` is configured, requests must

        present a matching ``Authorization: Bearer `` header to read

        the metrics. Operators who scrape from a trusted internal network

        (the Phase-6 default) can leave the env unset and the endpoint

        stays open as before — but any internet-reachable deployment should

        set it to defeat unauthenticated reconnaissance (the metrics expose

        per-endpoint latency, error rates, build version, and

        connected-service counters, all of which are reconnaissance fodder

        for a targeted attack).'
      operationId: get_prometheus_metrics_metrics_get
      responses:
        '200':
          description: Successful Response
          content:
            application/json:
              schema: {}
      tags:
      - Metrics