(Legacy) Telnyx Remote Model Context Protocol (MCP)

*Requires a Claude / Claude Desktop plan with access to Custom Connectors

Go to Claude > Settings > Connectors

Grant access in the Telnyx Portal (must be logged in)

1. Get your API key from the Telnyx Portal.
2. Install node and npx
3. Go to Claude > Settings > Developer > Edit Config > claude_desktop_config.json to include the following:

{
  "mcpServers": {
    "Telnyx-Remote-MCP": {
      "command": "npx",
      "args": [
        "-y",
        "mcp-remote",
        "https://api.telnyx.com/mcp/sse",
        "--transport",
        "sse-only",
        "--header",
        "Authorization:Bearer <YOUR-TELNYX-API-KEY>"
      ]

    }
  }
}

Restart Claude Desktop and you should be able to see the Telnyx MCP server in the list of available MCP servers.

You can try to search and purchase a number.

• create_assistant - Create a new AI assistant
• get_assistant - Retrieve details of an existing assistant
• get_assistant_texml - Get an assistant's TEXML configuration
• list_assistants - List all available assistants
• mcp_telnyx_delete_assistant - Delete an existing assistant
• start_assistant_call - Initiate a call using an AI assistant
• update_assistant - Update an existing assistant's configuration

• create_call_control_application - Create a new call control application
• get_call_control_application - Get details of a call control application
• hangup - End an active call
• list_call_control_applications - List all call control applications
• make_call - Initiate a new outbound call
• playback_start - Start audio playback during a call
• playback_stop - Stop audio playback during a call
• send_dtmf - Send DTMF tones during a call
• speak - Use text-to-speech during a call
• transfer - Transfer a call to a new destination

• cloud_storage_create_bucket - Create a new storage bucket
• cloud_storage_list_buckets - List all available storage buckets
• cloud_storage_upload_file - Upload a file to cloud storage
• cloud_storage_download_file - Download a file from cloud storage
• cloud_storage_list_objects - List objects within a bucket
• cloud_storage_delete_object - Delete an object from cloud storage
• cloud_storage_get_bucket_location - Get a bucket's region location

• get_connection - Get details of a connection
• list_connections - List all available connections
• update_connection - Update an existing connection

• create_embeddings - Create embeddings for a bucket with files
• embed_url - Scrape and embed a website's content
• list_embedded_buckets - List all embedded buckets

• send_message - Send an SMS/MMS message
• get_message - Retrieve details of a sent message

• create_messaging_profile - Create a new messaging profile
• get_messaging_profile - Get details of a messaging profile
• list_messaging_profiles - List all messaging profiles
• update_messaging_profile - Update an existing messaging profile

• initiate_phone_number_order - Order a new phone number
• get_phone_number - Get details of a phone number
• list_available_phone_numbers - List available phone numbers for purchase
• list_phone_numbers - List all phone numbers in your account
• update_phone_number - Update phone number configuration
• update_phone_number_messaging_settings - Update messaging settings for a number

• create_integration_secret - Create a new integration secret
• delete_integration_secret - Delete an integration secret
• list_integration_secrets - List all integration secrets