Business data APIs · usage-based · $0 when idle

One key for business data and calls

Business data — IBAN, phone and email validation — plus call-archive and call-control endpoints. Every response uses the same envelope.

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Example request

# Validate an IBAN
GET /v1/iban/validate?iban=TR33…
→ 200
{
  "ok": true,
  "data": { "valid": true, "bankName": "Example Bank" },
  "meta": { "credits": 1, "durationMs": 3 }
}

Getting started

From request to first response

Try endpoints on the demo quota before you top up.

Create your account
Sign up with your email and create a key in Temsor Portal → Keys.
Create a key
In Temsor Portal → Keys. Use the same key for every endpoint.
Top up credits
1 credit = $0.0005. Most calls cost 1–3 credits; top-ups start at $10.

What’s inside

Business Data and call APIs

Deterministic answers, most in single-digit milliseconds.

Business Data APIs

IBAN validation, phone number validation and email verification.

Call archive and call control

Search calls, read the call graph and record hold or transfer intent.

One key, one envelope

Every call returns ok, data and meta — the same shape on every endpoint.

Prices exclude VAT where applicable.

Keep reading

Pricing

Credits and top-ups.

Voice agents docs

Agents, menus and tooling.

Let Temsor answer your next call.

Build and test your first flow free in your browser. Add funds when you go live.

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No card needed · $0 when idle