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Make An Outbound Call Via Whatsapp

An MCP tool from the ElevenLabs API server, hosted on mcp.hjlabs.in.

Make An Outbound Call Via Whatsapp [POST /v1/convai/whatsapp/outbound-call]

Name on the gateway: elevenlabs_api__whatsapp_outbound_call · may change things.

Parameters

NameTypeDescription
whatsapp_phone_number_id requiredstringWhatsapp Phone Number Id
whatsapp_user_id requiredstringWhatsapp User Id
whatsapp_call_permission_request_template_name requiredstringWhatsapp Call Permission Request Template Name
whatsapp_call_permission_request_template_language_code requiredstringWhatsapp Call Permission Request Template Language Code
agent_id requiredstringAgent Id
conversation_initiation_client_dataobjectConversationInitiationClientDataRequest

How to call it

Through the Smart Gateway, any client can run it by name with call_tool, or let the gateway find it with search_tools:

call_tool arguments
{
  "name": "elevenlabs_api__whatsapp_outbound_call",
  "arguments": {
    "whatsapp_phone_number_id": "…",
    "whatsapp_user_id": "…",
    "whatsapp_call_permission_request_template_name": "…",
    "whatsapp_call_permission_request_template_language_code": "…",
    "agent_id": "…"
  }
}

Or connect the ElevenLabs API server directly, which lists 487 tools including this one:

Run in your terminal
claude mcp add --transport http hj-elevenlabs-api https://mcp.hjlabs.in/mcp/elevenlabs-api \
  --header "Authorization: Bearer YOUR_API_KEY"

Try asking

Use the make an outbound call via whatsapp tool with whatsapp_phone_number_id set to ….

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