Dial Python SDK

Official Python SDK for Dial — phone numbers, SMS, WhatsApp, and voice calls for AI agents.

This site documents the dial-sdk package. The full API Reference below is generated directly from the source docstrings. See the other SDK docs from the docs home, and the product docs at docs.getdial.ai.

Install

pip install dial-sdk
# or
uv add dial-sdk

Requires Python 3.11+.

Quickstart

The client is async. Construct it with a DialConfig, then call its methods inside an async with block:

import asyncio
from dial_sdk import DialClient, DialConfig, SendMessageParams, MakeCallParams

async def main():
    async with DialClient(DialConfig(api_key="sk_live_...")) as dial:
        # List your numbers
        numbers = await dial.list_numbers()
        from_id = numbers[0].id

        # Send an SMS
        await dial.send_message(SendMessageParams(
            to="+15551234567",
            from_number_id=from_id,
            body="Hello from Dial",
        ))

        # Place an AI voice call
        call = await dial.make_call(MakeCallParams(
            to="+15551234567",
            from_number_id=from_id,
            outbound_instruction="You are a friendly assistant confirming an appointment.",
        ))
        print(call.id, call.status)

asyncio.run(main())

DialConfig.base_url defaults to https://api.getdial.ai. Override it for local or self-hosted setups.

Live events

Incoming messages and call transcripts stream via an async generator:

async with DialClient(DialConfig(api_key="sk_live_...")) as dial:
    async with dial.new_events_connection() as events:
        async for event in events:
            print(event)  # MessageEvent / CallEvent / CallTranscribed / ...