> ## Documentation Index
> Fetch the complete documentation index at: https://dev-docs.altrum.ai/llms.txt
> Use this file to discover all available pages before exploring further.

# MCP event stream

> Opens the server-sent event stream an MCP client listens on.



## OpenAPI

````yaml /api-reference/openapi.json get /mcp
openapi: 3.1.0
info:
  title: Altrum AI Gateway API
  version: 1.0.0
  description: >-
    The public API of the Altrum AI Gateway. It accepts the OpenAI, Anthropic
    and Gemini request formats, so an existing client needs only a new base URL
    and a virtual key.
servers:
  - url: https://api.altrum.ai
security:
  - bearer: []
  - apiKey: []
  - googleApiKey: []
  - altrumKey: []
tags:
  - name: OpenAI
  - name: Anthropic
  - name: Gemini
  - name: MCP
  - name: Health
paths:
  /mcp:
    get:
      tags:
        - MCP
      summary: MCP event stream
      description: Opens the server-sent event stream an MCP client listens on.
      operationId: mcpEvents
      parameters:
        - $ref: '#/components/parameters/RequestIdIn'
      responses:
        '200':
          description: The event stream.
          content:
            text/event-stream:
              schema:
                type: string
components:
  parameters:
    RequestIdIn:
      name: x-request-id
      in: header
      required: false
      description: >-
        Your own reference for the request. Altrum uses it instead of making
        one, and returns it.
      schema:
        type: string
  securitySchemes:
    bearer:
      type: http
      scheme: bearer
      description: >-
        Your virtual key, `sk-alt-...`. What every OpenAI and Anthropic SDK
        sends.
    apiKey:
      type: apiKey
      in: header
      name: x-api-key
      description: Your virtual key, as Anthropic clients send it.
    googleApiKey:
      type: apiKey
      in: header
      name: x-goog-api-key
      description: Your virtual key, as Gemini clients send it.
    altrumKey:
      type: apiKey
      in: header
      name: x-alt-vk
      description: >-
        Your virtual key. Needed when `Authorization` carries your own provider
        key (`x-alt-direct-key`).

````

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