MCP-NATIVE

Give any AI agent
a real phone number.

TakeCallOS exposes your iPhone as an MCP server — your agents can make and receive real calls, no Twilio, no virtual numbers, no dev work.

MCP endpoint takecallos://mcp

Works with the agents you already use

Point any MCP-compatible client at takecallos://mcp and it gets a real phone.

🤝

CrewAI

MCP tool

Let a research crew call vendors for quotes, verify supplier availability, or negotiate terms over a real line.

⛓️

LangChain

MCP tool

Wrap TakeCallOS as a LangChain tool — your chains can dial out when web data isn't enough and a live voice is.

🤖

AutoGen / AG2

MCP tool

Equip an AutoGen agent to follow up on delayed orders, verify hours, or triage inbound calls autonomously.

Claude Desktop

MCP native

Claude Desktop reads MCP servers natively. Add TakeCallOS and Claude can pick up your iPhone directly from chat.

⌨️

Cursor

MCP tool

Add a phone-call tool to your Cursor agent — useful for two-factor flows, API vendor onboarding, or quick human-in-the-loop checks.

⚙️

Custom MCP clients

open protocol

Any client that speaks MCP works. Build your own agent, pipeline, or orchestration layer — TakeCallOS handles the phone side.

What your agent can do

Real calls, real outcomes. Not simulated — your actual iPhone number on the line.

🍽️

Book a restaurant reservation

Agent calls the restaurant, navigates the host, confirms a table for two at 7pm — no app, no form, just a call.

🏥

Call a clinic to verify hours

Before booking a ride, agent confirms the clinic is open and the specialist is in. Five-second check that saves a wasted trip.

☎️

Navigate an IVR to reach a human

Press 1 for billing, press 3 for disputes, hold for 4 minutes — agent handles the menu so you never have to.

📦

Follow up on a delayed delivery

Agent calls the courier's local depot, gets a real ETA, and reports back — no chatbot, no ticket, just a resolved question.

📞

Brief you before patching a call through

Unknown caller? Agent intercepts, asks why they're calling, summarises, then rings you only if it's worth your time.

🔁

Run repeating outreach campaigns

Call a list of leads, leave a personalised voicemail for no-answers, log results to your CRM. Fully autonomous, zero dial time.

How it works

Step 01 💻

Install TakeCallOS on Mac

One-click install. No Xcode, no config files, no cloud accounts to create.

Step 02 📱

Pair your iPhone

Scan a QR code. Your iPhone number is now reachable from your Mac over your local network.

Step 03 🔌

Point any MCP client at takecallos://mcp

Your agent discovers call tools automatically. No API keys, no webhooks — just plug and call.

On-device, no cloud routing
Your real iPhone number
Your own AI keys
Zero per-minute fees
Works with any MCP client

Ready to give your
agent a phone?

Join the early access list. First batch ships to Mac + iPhone users on the waitlist.



Read the integration docs →

Get notified when TakeCallOS ships

Your number. Your AI. Your inbox first.