The CData Code Assist MCP for Twilio defines each connection to Twilio as a named configuration that an MCP Client (such as Claude Desktop) can use when sending natural language queries.

You create and manage these configurations using the CData Code Assist MCP Configuration Tool. The tool automatically handles formatting, storage, and registration with MCP clients.

Understanding Connection Configurations

Each connection configuration is stored in a .mcp file. This file includes the details needed to initialize the connector when an MCP Client starts a session.

• On Windows, configuration files are stored in "~/AppData/Roaming/CData/Twilio Data Provider/".
• On macOS, configuration files are stored in "~/Library/Application Support/CData/Twilio Data Provider/".

The .mcp file is a text file that contains a list of connection properties and a timestamp. For example:

#Tue May 20 15:48:40 EDT 2025
AuthScheme=Basic
User=myUser
Password=myPassword
Security Token=myToken

The configuration tool handles these settings automatically. Each saved configuration enables an MCP client to launch a dedicated MCP server instance with the correct connector and options. Manual file editing is not required.

Connecting to Twilio

You can authenticate to Twilio using either an Auth Token or an API key.

Auth Token

You can authenticate to Twilio using an Auth Token and an Account SID.

Open the Twilio Console Dashboard, navigate to the Account Info section, and set these connection properties:

• AccountSID: the value of the Account SID field.
• AuthToken: the value of the Auth Token field. Click Show to unhide it.

API Key

To authenticate to Twilio using an API key:

1. Open the Twilio Console Dashboard and click Account Info > API Keys > Go to API Keys. The API keys & tokens page opens.
2. Click Create API key. The Create new API key menu opens.
   • Set Friendly name to a name you want to use to refer to the token.
   • Set Region to the region in which you want the API key to apply.
   • Set Key type to your desired key type. The options include:
     • Standard - Grants access to all Twilio API features except for managing API Keys, Account Configuration, and Subaccounts.
     • Main - Grants access to the same features as the Standard key type, with the added ability to manage API Keys, Account Configuration, and Subaccounts.
     • Restricted - Allows granular access to a subset of the Twilio API features that the standard APIKey grants. If you select this option, you must manually specify the permissions that the token grants.
3. Click Create. This opens the Copy secret key page.
4. Note the values of the SID and Secret fields. The latter is only shown once, so make sure you copy it before leaving this page.
5. Set the following connection properties:
   • AuthScheme: APIKey
   • AccountSID: the value of the Account SID field in the Account Info section of the Twilio Console Dashboard.
   • APIKeySID: the SID of the API key you generated earlier, which you noted in step 4.
   • APIKeySecret: the API key secret of the API key you generated earlier, which you noted in step 4.

OAuth Client Authentication

To authenticate to Twilio using OAuthClient:

Twilio supports OAuth authentication using the Client Credentials grant flow. You must create a custom OAuth application, and define the required scopes. See Creating a Custom OAuth Application for more information.

To connect, set the following properties:

• AuthScheme: Set to OAuthClient to perform authentication using the Client Credentials grant type.
• OAuthClientId: Set this to the client Id assigned when you registered your application.
• OAuthClientSecret: Set this to the client secret assigned when you registered your application.