The phone layer for AI agents

Give your AI agent a phone line, or hire an AI employee that comes with one

AI is now good enough to be on the phone with your customers: making real calls, taking real calls, handling them end to end.

This is a real call from your browser. Your microphone opens when you press talk and closes when you end the call.

Can your AI actually pick up a phone yet?

21:47 · after closing
Incoming callanswered
booking confirmed · Thu 09:15

For your business

Every missed call is someone else’s opportunity. An AI agent that never misses a shift closes that gap after hours, at lunch, and during your busiest hour, without adding headcount just to staff a phone.

10:02 · your assistant
Calling Dr. Novak’s office…
✓ appointment moved to Thursday

For you, personally

An assistant that actually calls the doctor’s office, chases the refund, or returns the call you’ve been avoiding, not one that drafts a message about it.

your product · v1
POST /v1/numbers
+1 (415) 230-8841 live

For builders

Building your own voice product? Build it on infrastructure we already own and operate. Skip the carrier relationships, the number provisioning, and the compliance paperwork.

Where it fits

  • AI agents for SaaS support

    Inbound support with customer records, case history, and tickets in hand.

    “Where’s my ticket at?” → resolved

  • On-call operations

    Alerts and escalations triaged; humans woken only when required.

    03:12 alert → acked, no page

  • Appointments and reservations

    Confirm, reschedule, and cancel over phone and SMS in routine cases.

    “Can we move to Thursday?” → done

  • Personal assistant apps

    An outbound voice and SMS channel for real-world task execution.

    refund chased → confirmed

  • AI agent builders and agencies

    Voice-capable AI agents for clients without becoming a telecom operator.

    client launch → no carrier work

  • Local service businesses

    Inbound calls and outbound confirmations for bookings, delivery, dispatch.

    busy hour → every call answered

  • Enterprise internal ops

    Helpdesk, IT triage, HR scheduling, and facilities over voice and SMS.

    password reset → no queue

Two ways to start

Use OpenPhonex yourself

Bring your own AI agent, or build one here

Already have an AI agent? Connect it by webhook, API, or MCP. Starting from nothing? Build one right here in the workspace. No engineer required either way.

  1. Connect AI agent
  2. Pick numbers
  3. Configure routing
  4. Go live
Start building

Build with OpenPhonex

We build the workflow with you

We scope the call flow, configure guardrails, integrate your systems, and hand over a running AI agent with observability from day one.

  1. Design workflow
  2. Integrate systems
  3. Configure policy
  4. Launch
Talk to an engineer

Flat monthly plans, support included → see pricing

Capabilities

One phone layer. Every piece your AI agent needs to run a real line

Call evidence

Recording, waveform, transcript, AI summary, policy decision, and cost: attached automatically to every call, so “what did the AI agent actually say” settles in one click instead of a log dig.

Visual workflow builder

Design call flows and escalation logic visually. A flow changes same-day, not on the next engineering sprint.

Tool calling & integrations

Mid-call, the AI agent checks the calendar, looks up the order, and updates the CRM, so the caller gets a real appointment, not “someone will call you back.”

Knowledge base

Upload your docs, FAQs, or policies. The AI agent looks them up mid-call and answers with the source, so callers get what you actually publish, not a guess.

Bring your own AI agent, or build here

Connect the AI agent you already run in minutes, or build the whole flow inside OpenPhonex. No forced rebuild, no cold start.

Fast on what’s missing

We’re early and building in the open. Tell us what your call flow needs and it ships fast.

Go live

Request numbers, or bring the one you already have

Dedicated numbers, SMS routes, outbound access, country registrations: OpenPhonex handles the provider selection and paperwork, with requirements and activation times in plain language before you commit.

Find a number your AI agent can use

Country
Customer
Number type
Setup
Capability
101 countries
Call inCall outSMS inSMS outBiz SMSEmergencyAvailableNeeds reviewNot offered
TypeCapabilitiesOnboarding requirements
Albania+355
Local+355 4
Business onlyCompany detailsAddress proof~5 min setup
Anguilla+1
National+1 264
Business onlyCompany detailsAddress proof+ Signed form~5 min setup
Antigua and Barbuda+1
National+1 268
Business onlyCompany detailsAddress proof+ Signed form~5 min setup
Argentina+54
Local+54 2224 · +54 3434 · +54 291 · +54 342 · +54 261
AnyoneInstant
Toll free+54 800
AnyoneInstant
Shared cost+54 810
AnyoneInstant
UIFN+800
IndividualsKYC~1 min setupBusinessKYCCompany detailsAddress proof~5 min setup
Australia+61
Local+61 885 · +61 256 · +61 347 · +61 251 · +61 25
IndividualsKYC~1 min setupBusinessKYCCompany detailsAddress proof~5 min setup
Mobile+61 4
IndividualsKYC~1 min setupBusinessKYCCompany detailsAddress proof~5 min setup
Toll free+61 1800
IndividualsKYC~1 min setupBusinessKYCCompany detailsAddress proof~5 min setup
Shared cost+61 1300
IndividualsKYC~1 min setupBusinessKYCCompany detailsAddress proof~5 min setup
UIFN+800
IndividualsKYC~1 min setupBusinessKYCCompany detailsAddress proof~5 min setup
Austria+43
Local+43 463 · +43 316 · +43 1 · +43 512 · +43 662
IndividualsKYC~1 min setupBusinessKYCCompany detailsAddress proof~5 min setup
National+43 720
IndividualsKYC~1 min setupBusinessKYCCompany detailsAddress proof~5 min setup
Toll free+43 800
AnyoneInstant
UIFN+800
IndividualsKYC~1 min setupBusinessKYCCompany detailsAddress proof~5 min setup
Bahamas+1
National+1 242
Business onlyCompany detailsAddress proof+ Signed form~5 min setup
Barbados+1
National+1 246
Business onlyCompany detailsAddress proof+ Signed form~5 min setup
Belgium+32
Local+32 58 · +32 89 · +32 51 · +32 60 · +32 16
IndividualsKYC~1 min setupBusinessKYCCompany detailsAddress proof~5 min setup
National+32 78
IndividualsKYC~1 min setupBusinessKYCCompany detailsAddress proof~5 min setup
Mobile+32 48
IndividualsKYC~1 min setupBusinessKYCCompany detailsAddress proof~5 min setup
Toll free+32 800
IndividualsKYC~1 min setupBusinessKYCCompany detailsAddress proof~5 min setup
UIFN+800
IndividualsKYC~1 min setupBusinessKYCCompany detailsAddress proof~5 min setup
Bolivia+591
National+591 5
AnyoneInstant
Exact inventory, pricing, and live activation still require review before we promise a number. Emergency-route metadata is shown for transparency; OpenPhonex beta does not support emergency-use products.

Run it on our servers, or your own

Every call’s audio runs through a media gateway, the server that bridges the phone network and your AI. Numbers, billing, and compliance stay with OpenPhonex either way.

OpenPhonex Cloud DefaultYour own gatewayfor data residency
Numbers · billing · complianceOpenPhonexOpenPhonex
Media gateway (your call audio)OpenPhonexYou, your region
Your AI agentYouYou

Agent-native

Built for developers. Readable by AI agents

An AI coding agent can read these docs and wire the whole thing: check coverage, request a number, inspect recordings, send approved SMS. Delegate the setup instead of hand-wiring every telecom step.

Read /llms.txt and /openapi.json. Connect my AI agent to OpenPhonex, check coverage, request the right number, and inspect every recording, transcript, policy decision, and cost event.

REST API

Agents, calls, recordings, SMS, usage, numbers, coverage.

MCP tools

Provision, call, and query. No human steps in the loop.

Webhooks + realtime audio

Every call event, plus a bidirectional audio stream.

SDKs

Node.js and Python, with an interactive API reference.

/skills.md

Agent-install quickstart for the whole setup flow.

/llms.txt

Machine-readable entry point for AI assistants.

OpenPhonex speaks MCP and llms.txt, so it works out of the box with the AI agent or harness you already use: ClaudeCodexOpenClawCursorOpenCodeGrok and any MCP client or AI agent.

3 ways to connect: OpenPhonex hosted MCP · AI Agent · REST API