Private beta, live in GB, DE, NL, FR

Telecom intelligence for AI agents

Carrier, line-type and active-status signals via a single API query, live today in GB, DE, NL and FR. SIM swap detection is launching, with early access open now. Your agents query and act. No human configuration required.

Request early access See how it works

GET api.telebase.io/lookup?phone=...

# Request

          GET api.telebase.io/lookup?phone=%2B447700900000

          Authorization: Bearer tb_live_xxxx
        
# Response: <500ms

          → carrier: "EE"

          → country: "GB"

          → numberType: "mobile"

          → active: true

          → simSwap: "UNKNOWN" # launching, early access open

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 query

Under one hour

Signals

One query. Full visibility.

Live coverage across GB, DE, NL, and FR. Sign up and query in under an hour.

Launching now

SIM Swap History

Detect account takeover attempts the moment a SIM is reissued. Network-level signal, no inference.

Live

Number Status

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

Live

Number Type

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

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 query in under an hour.

Connect

Create an account, get your API key, and run your first 100 queries free. No annual commitment.

Query

Send a phone number. Get back a full intelligence profile in under 500ms. Currently live for Claude Code agents, with support for additional frameworks coming soon.

Scale

Your agents fire queries as needed. You only pay for what you use. Volume grows, cost per query goes down.

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

$0.05 per query, 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.

Live coverage

United Kingdom Germany Netherlands France

Join the private beta.

Free credits on approval. Live within 24 hours.

Request early access

$0.05 per query. No annual commitment.