Telecom intelligence for AI agents

Lookup available globally. SIM swap detection live in the UK and Germany, with more on the way.

Request early access See how it works
GET api.telebase.io/lookup?phone=%2B447700900000 200 OK
# Authorization: Bearer tb_live_xxxx { "phoneNumber": "+447700900000", "active": true, "carrier": "EE", "country": "GB", "numberType": "mobile", "simSwap": "SWAPPED", "simSwapAt": "2026-09-06T03:14:00Z" }
simSwap returns one of three states: NO_SWAP UNKNOWN SWAPPED
Built for
AI agents KYC platforms Neobanks Identity providers Crypto exchanges Fraud teams

The problem

AI fraud agents are flying blind

A SIM swap takes one phone call. Your agent doesn't know it happened.

The attacker talks a carrier into reissuing your customer's SIM, and every OTP, password reset, and transaction confirmation flows straight to them. Carriers log it instantly, but that signal lives behind enterprise contracts, minimum volumes, and weeks of onboarding.

Fraud teams can't move fast enough. Telebase changes that: one query, real-time signal, no procurement process.

Carrier signal availability
Instant, but gated
Traditional onboarding time
Weeks to months
Telebase time to first test query
Under one hour

Signals

One query. Full visibility.

Lookup is available globally. SIM swap is live in the UK and Germany, with more on the way. Sign up and run your first test query in under an hour.

simSwap Live: UK, DE

SIM swap history

Live in the UK and Germany, with more on the way. Returns a network-level signal on recent SIM reissue, not an inference.

active Live

Number status

Verify whether a number is currently active before relying on it for authentication or communication.

numberType Live

Number type

Distinguish mobile, landline, and VoIP. Filter out fraud-prone virtual channels automatically.

carrier, country Live

Carrier and country

Identify the network operator and country of origin. Flag mismatches between claimed and actual location instantly.

How it works

From sign-up to first test query in under an hour.

01

Connect

Create an account and get a sandbox API key straight away. Live access is switched on after a short review. No annual commitment.

02

Query

Send a phone number. Get back the SIM swap result with carrier, country, number type and line status in a single call. Agents can learn the API from skills.md.

03

Scale

Your agents fire queries as needed. You only pay for what you use. Larger volumes by arrangement.

Built for AI agents

Built for AI agents. Not adapted for them.

Telebase is built from the ground up for autonomous AI agents operating at scale. Your agents discover Telebase via a machine-readable skills file. They authenticate, query, and act on the response. No human configuration required.

View skills.md
Agent instruction "Do a lookup for this number by following telebase.io/skills.md"

That is the integration. No SDK. No documentation sprint. No enterprise sales call.

No SDK required
Works with any agent framework
Machine-readable discovery via skills.md
$0.20 per SIM swap check, carrier data included, no annual commitment

Who it's for

Built for every team that moves fast.

Whether you're running an autonomous fraud agent or adding a signal layer to your KYC flow, Telebase fits without friction.

Neobanks

Stop account takeover before it happens. Add SIM swap detection to your onboarding and transaction flows without a carrier contract.

KYC platforms

Add live telecom signals to your verification stack. Carrier, number type, and active status with a single API call.

AI agents

One API, full autonomy. Discover Telebase via skills.md, authenticate, and start querying. No human configuration required.

Lookup coverage

Global

SIM swap coverage

United Kingdom Germany

Join the private beta.

Sandbox access straight away. Live access after a short review.

Request early access

$0.20 per SIM swap check, carrier data included. No annual commitment.