Carrier-grade telephony API
Real phone numbers for AI agents
Real carrier-grade phone numbers your AI agents can use for SMS and call detection. Real SIM cards. Real carrier networks. No VoIP.
No credit card required to start. Identity verification required for live numbers.
Why it matters
Why real SIM cards matter for AI agents
Passes carrier verification
WhatsApp Business, bank OTP verification, and carrier-grade delivery validate that the originating number is a real SIM. VoIP numbers fail these checks. ReachCell numbers pass them.
Full carrier coverage
Your agents reach every phone on every carrier in every region we operate - without limitations from VoIP provider network agreements.
Same country, same carrier
Calls are routed as local calls from a local SIM to a local number - how legitimate communication works. ReachCell enforces this with a technical restriction on cross-country calls.
How it works
From signup to first message in three steps
Provision a real number
Choose a country and provision a real SIM-backed number to your account, pre-activated on WhatsApp where applicable.
Build your agent
Use the ReachCell REST API or MCP server to give your AI agent the number. Send SMS, trigger calls, and receive call events like any other API.
Monitor and control
The developer portal shows every message and call event with full logs and delivery status. Built-in compliance monitoring protects your account.
Use cases
Built for teams shipping real phone-native AI
Inbound missed-call verification
Give customers your gateway number. When they call, ReachCell fires a webhook — no answer needed. Use the signal to mark the number verified for free.
Automated outreach
Programmatic outbound SMS for appointment reminders, confirmations, and notifications via real carrier numbers.
Verification workflows
Receiving OTP codes and other carrier-validated messages on behalf of automated workflows.
Outbound missed-call delivery
Trigger a call from your gateway number to a customer. They see your number on their screen — confirm identity or intent without them ever answering.
Pricing
Simple, transparent pricing
Start free. Upgrade when you are ready to send on live numbers.
- 10000 SMS / mo
- 1,000 call events / mo
- 5 number(s)
Give your AI agents a real phone number
Start building in minutes with the REST API or MCP server. No credit card required to begin.