handset

The official Python SDK for Handset — the business phone API. Compliant two-way SMS, inbound voice, voicemail with transcripts, phone numbers, and 10DLC compliance for your platform's customers.

pip install handset

Quickstart

from handset import AuthenticatedClient
from handset.api.messaging import send_message
from handset.models import SendMessageBody

client = AuthenticatedClient(
    base_url="https://api.handset.dev/v1",
    token="hs_test_...",  # test mode: simulated carrier, free numbers
)

message = send_message.sync(
    client=client,
    body=SendMessageBody(
        from_="num_01kzv...",          # one of your tenant's numbers
        to="+14155550134",
        body="Your technician is 15 minutes out.",
    ),
)
print(message.id, message.status)      # msg_..., "queued"

Every endpoint lives under handset.api.<area> (messaging, voice, phone_numbers, tenants, compliance, webhooks, usage) with sync, sync_detailed, asyncio, and asyncio_detailed variants. All request and response shapes are typed attrs models under handset.models.

Test mode

Every account ships parallel live and test keys. Test keys (hs_test_...) run against a simulated carrier — numbers are free and instant, compliance approves immediately, and magic numbers let you rehearse failures. Start there.

Docs

• Guides: docs.handset.dev
• API reference: docs.handset.dev/api.html
• TypeScript SDK: @handset/sdk

Questions: developer@handset.dev