API ReferenceMCP

Create a new MCP server

Markdown
POST
/api/v3/mcp/servers

Creates a new Model Control Protocol (MCP) server instance for the authenticated project. An MCP server provides a connection point for AI assistants to access your applications and services. The server is configured with specific authentication and tool permissions that determine what actions the connected assistants can perform.

Authorization

x-api-key<token>

Project API key authentication

In: header

Request Body

application/json

namestringRequired

Human-readable name to identify this MCP server instance (4-30 characters, alphanumeric, spaces, and hyphens only)

auth_config_idsarray of stringRequired

ID references to existing authentication configurations

no_auth_appsarray of string

List of NO_AUTH apps to enable for this MCP server

allowed_toolsarray of string

List of tool slugs that should be allowed for this server. If not provided, all available tools for the authentication configuration will be enabled.

managed_auth_via_composioboolean

Whether the MCP server is managed by Composio

Response Body

application/json

application/json

application/json

application/json

application/json

application/json

curl -X POST "https://backend.composio.dev/api/v3/mcp/servers" \  -H "Content-Type: application/json" \  -d '{    "name": "GitHub Integration Server",    "auth_config_ids": [      "auth_cfg_abc123def456"    ]  }'
{
  "id": "550e8400-e29b-41d4-a716-446655440000",
  "name": "GitHub Integration Server",
  "auth_config_ids": [
    "auth_cfg_abc123def456",
    "auth_cfg_xyz789"
  ],
  "allowed_tools": [
    "github-issues",
    "github-repos",
    "github-pull-requests"
  ],
  "mcp_url": "https://backend.composio.dev/v3/mcp/550e8400-e29b-41d4-a716-446655440000?user_id=john",
  "toolkits": [
    "github",
    "jira",
    "slack"
  ],
  "toolkit_icons": {
    "github": "https://assets.composio.dev/logos/github.png",
    "jira": "https://assets.composio.dev/logos/jira.png",
    "slack": "https://assets.composio.dev/logos/slack.png"
  },
  "commands": {
    "cursor": "npx @composio/mcp@latest setup \"https://backend.composio.dev/v3/mcp/550e8400-e29b-41d4-a716-446655440000?user_id=john\" --client cursor",
    "claude": "npx @composio/mcp@latest setup \"https://backend.composio.dev/v3/mcp/550e8400-e29b-41d4-a716-446655440000?user_id=john\" --client claude",
    "windsurf": "npx @composio/mcp@latest setup \"https://backend.composio.dev/v3/mcp/550e8400-e29b-41d4-a716-446655440000?user_id=john\" --client windsurf"
  },
  "updated_at": "2023-06-15T14:30:00.000Z",
  "created_at": "2023-06-10T09:15:00.000Z",
  "server_instance_count": 5,
  "managed_auth_via_composio": true
}
{
  "error": {
    "message": "string",
    "code": 0,
    "slug": "string",
    "status": 0,
    "request_id": "string",
    "suggested_fix": "string",
    "errors": [
      "string"
    ]
  }
}
{
  "error": {
    "message": "string",
    "code": 0,
    "slug": "string",
    "status": 0,
    "request_id": "string",
    "suggested_fix": "string",
    "errors": [
      "string"
    ]
  }
}
{
  "error": {
    "message": "string",
    "code": 0,
    "slug": "string",
    "status": 0,
    "request_id": "string",
    "suggested_fix": "string",
    "errors": [
      "string"
    ]
  }
}
{
  "error": {
    "message": "string",
    "code": 0,
    "slug": "string",
    "status": 0,
    "request_id": "string",
    "suggested_fix": "string",
    "errors": [
      "string"
    ]
  }
}
{
  "error": {
    "message": "string",
    "code": 0,
    "slug": "string",
    "status": 0,
    "request_id": "string",
    "suggested_fix": "string",
    "errors": [
      "string"
    ]
  }
}