Open a Platform MCP event stream

GET https://{controlplane_path}/api/1/rest/public/platform_mcp/mcp/platform

Overview

This API opens a persistent Server-Sent Events (SSE) stream for receiving server-initiated messages from the SnapLogic MCP Server on the Platform toolset.

Use this endpoint when your MCP client needs to receive asynchronous notifications or streaming responses initiated by the server for the Platform toolset. The stream remains open until the client closes the connection or the session is terminated with DELETE /platform_mcp/mcp/platform.

Prerequisites

Request

GET https://{controlplane_path}/api/1/rest/public/platform_mcp/mcp/platform

Path parameters

Key Description
controlplane_path Required. The SnapLogic control plane host: elastic.snaplogic.com (US) or emea.snaplogic.com (EU).

Request headers

Key Type Description
Authorization String Required. HTTP Basic credentials. Refer to MCP APIs — Authentication for format details.
Mcp-Session-Id String Required. The session identifier returned by the initialize response. Associates this SSE stream with an existing Platform toolset MCP session.

Request body

None.

Response

Returns a chunked SSE stream with Content-Type: text/event-stream. Each event carries a JSON-RPC 2.0 message in the data field:

event: message
data: {"jsonrpc": "2.0", "method": "notifications/message", "params": { ... }}

HTTP status codes:

Key Description
200 OK The SSE stream is open and ready to receive server-initiated messages.
401 Unauthorized The request is missing a valid Authorization header.
403 Forbidden The authenticated user doesn't have permission to access the requested organization or resource.
502 Bad Gateway The SnapLogic MCP Server is unreachable.

Examples

GET https://elastic.snaplogic.com/api/1/rest/public/platform_mcp/mcp/platform
Authorization: Basic <base64_credentials>
Mcp-Session-Id: <session_id>