Initialize connection

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POSThttps://app.advarde.com/mcp

Protocol

Available subject to your connection’s permissions.

Description: Negotiate the MCP protocol version and client capabilities. Use the version returned by the server for subsequent requests.

Method: initialize

Output: See the protocol description and workflow notes below.

Access: Workspace-scoped MCP authentication.

Authentication

Use an MCP access token from MCP connections, or connect through OAuth. Send your token in the Authorization: Bearer header.

For full protocol initialization and tool discovery, use an MCP client. These examples show individual JSON-RPC requests.

Request parameters

Send these fields inside params. The JSON-RPC envelope is shown in the request example.

protocolVersionstringrequired

MCP protocol version supported by the client.

capabilitiesobjectrequired

Client capabilities.

clientInfoobjectrequired

EXPAND CLIENTINFO

namestringrequired

versionstringrequired

Full JSON Schema

{
  "type": "object",
  "properties": {
    "protocolVersion": {
      "type": "string",
      "description": "MCP protocol version supported by the client."
    },
    "capabilities": {
      "type": "object",
      "description": "Client capabilities."
    },
    "clientInfo": {
      "type": "object",
      "properties": {
        "name": {
          "type": "string"
        },
        "version": {
          "type": "string"
        }
      },
      "required": [
        "name",
        "version"
      ]
    }
  },
  "required": [
    "protocolVersion",
    "capabilities",
    "clientInfo"
  ]
}

Responses

200Successful protocol response

Inspect result.isError for tool-level failures, even when the HTTP status is 200.

202Notification accepted

MCP notifications return no JSON-RPC response body.

400Invalid request

Check the JSON-RPC envelope, parameters, and protocol version.

406Not acceptable

Accept must include application/json and text/event-stream.

429Rate limited

Wait for the Retry-After interval before making another request.

401Unauthorized

A valid, unexpired MCP bearer token is required.

403Access denied

Your connection needs access to this workspace and the requested operation.