Telephony for AI Agents

Give your AI a real phone number. Unlock a new category of capability.

PUT YOUR AI ON THE PHONE

Every AI agent is missing one thing. A phone number. Firsty gives AI agents a real number in 18 countries, voice and SMS capability, all through a single API. AI agents that cannot pick up the phone cannot complete entire categories of real-world tasks.

For you as a partner

Real-world reach

Enable AI to interact with the real world through voice and SMS.

Zero telecom expertise

No telecom knowledge required.

New use cases

Opens entirely new use cases and revenue streams.

Full documentation

Full documentation available at developers.firsty.app.

For your AI product

Real numbers

A real phone number in 18 countries.

Voice calling

Inbound and outbound voice calling.

SMS and OTP

Two-way SMS messaging and OTP support, ready to plug into any authentication flow.

Stack agnostic

Works with any AI stack or orchestration layer.

Fast response

Sub 1 second API response time.

BUILT FOR EVERY CALL

Woman wearing headphones holding her phone outside an office building

From an inbound support call to an outbound scheduling task, your AI agent can pick up the phone and complete work in the real world. One API gives it a number, a voice, and the ability to authenticate, anywhere in 18 countries.

What this makes possible

AI support agents

Customer support agents that call users directly to resolve issues.

AI sales agents

Outbound and inbound sales calls handled at scale, fully automated.

AI authentication

AI assistants authenticating users through SMS or voice for secure access.

AI for legacy industries

AI systems interacting with businesses that still run on phone calls, from travel and healthcare scheduling to logistics coordination.

Autonomous AI systems

AI workflows that require a real-world identity to operate independently.

How it works

From phone number to fully operational AI agent.

CONNECT TO API

Start with the documents

Access the full documentation at developers.firsty.app.

PROVISION A NUMBER

Pick a country

Select a country and provision a real phone number for your AI agent in minutes.

ROUTE THROUGH AI

Connect your stack

Connect inbound and outbound call flows to your AI orchestration layer.

GO LIVE

Live on the phone

Your agent can now call, receive calls, send SMS, and authenticate users through OTP.

Proof points

Firsty gives AI agents real phone numbers in 18 countries, with full voice and SMS capability, sub 1 second API response time, and complete documentation at developers.firsty.app.

Looking up at glass skyscrapers against a clear sky

Ornate stone office building beside a modern glass tower

4.64.5

1.3M+

Users on the Firsty platform

The telecom layer your AI stack has been missing. A real phone number, real voice and SMS capability, and a single API behind every call your agent makes.

“Amsterdam-based telecom startup Firsty raises €5.1M Seed funding”

"Potential telcomarketdisruptor Firsty immediately brings in €1.1 Million"

"Belfius partners with Dutch eSIM disruptor Firsty for free global app access"

"Five million in growth capital for a Dutch eSIM provider"

“Why We Invested in Firsty: Democratizing Global Mobile Data with eSims”

"Nifty eSIM provider offers free mobile data for life wherever you are"

join the revolution

Looking for something more custom? Drop us a line at partners@firsty.app

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Questions about the Firsty telephony for AI agents?

We know, it sounds too good to be true. But it’s real. Here’s how.

What is Firsty telephony for AI agents?

Firsty telephony for AI agents is a telecom platform that gives AI agents a real phone number in 18 countries, voice calling capability, and SMS access through a single API. It enables AI products to make and receive calls, send SMS, and complete real-world tasks that require phone interaction.

Can my AI agent call from a local Firsty number in the recipient's country?

Yes. Numbers are available in 18 countries. Your agent calls from a local number improving pick-up rates significantly.

Does Firsty telephony work with any AI framework?

Yes. Firsty provides the telecom infrastructure. Your AI stack connects to it regardless of framework or model.

Can a Firsty AI agent receive inbound calls?

Yes. Both inbound and outbound calling are supported.

Can a Firsty number receive OTP codes?

Yes. All Firsty numbers are SMS-capable and work for OTP and two-factor authentication.

What is the Firsty API call latency?

API response time is sub 1 second. Call quality depends on network conditions but Firsty routes calls for high quality across 180+ countries.

Is Firsty telephony for AI agents GDPR compliant?

Yes. Firsty is GDPR compliant and operates under licensed telecom frameworks in all supported markets.