send sms from code

Your phone is the gateway.

Tin Can Smartphone puts a REST API in front of a real smartphone. Your app POSTs to the cloud; your phone sends the text over its own SIM. No carrier contracts, no short codes, no registration forms — your number, your rates.

Send your first message Read the docs

curl

curl -X POST https://api.tincansmartphone.com/v1/messages \
  -H "Authorization: Bearer tcs_live_..." \
  -d to="+15550100" \
  -d body="hello from the cloud"

← webhook {"status":"delivered","to":"+15550100"}

first message in minutes works wherever a sim works no per-message meter your sim plan is the meter rest api · webhooks · android app

Phone linked to the cloud by a stepped wire

Install the app

Your Android phone becomes the gateway — its SIM, its number, its plan. The one in your drawer works.

POST to the cloud

One REST call. The wire does the rest — queue to the phone, out over SMS.

Receive via webhook

Inbound texts and delivery receipts hit your endpoint as JSON.

Your SIM, your rates

Messages ride the plan you already pay for. No per-message markup, no number rental for everyday traffic.

A number people answer

Texts arrive from a real local number — not a shortcode from another country. Recipients recognize it and can reply.

Works where CPaaS doesn't

No virtual numbers in your country? If a SIM works there, Tin Can works there.

for ai agents · mcp

Give your AI agent a phone.

Your agent can already read your calendar. Now it can pass an SMS verification, text a human, and know where the device is — with scoped tokens, approval gates on writes, and an audit trail.

send_sms read_otp locate notify announce

MCP console API docs

mcp.json

{
  "mcpServers": {
    "tincan": {
      "url": "https://mcp.tincansmartphone.com",
      "headers": { "Authorization": "Bearer tcs_live_..." }
    }
  }
}

works with claude, chatgpt, gemini, n8n — anything that speaks mcp

access

Your SIM plan is the meter.

We charge for the relay and the tools — never per message. Registration is invitation-only during the current phase.

Request access Get the Android app