List offerable number countries
The WhatsApp number countries available to purchase, each with its flat monthly price (cents), regulatory tier, whether it needs end-user KYC (Tier 3/4), and whether outbound calling is available (not BIC-blocked). Drives the country picker. Tier-4 countries appear only when enabled.
API key authentication - use your Zernio API key as a Bearer token
In: header
Response Body
application/json
application/json
import Zernio from '@zernio/node';const zernio = new Zernio({ apiKey: process.env.ZERNIO_API_KEY });const { data } = await zernio.whatsappphonenumbers.listWhatsAppNumberCountries();console.log(data);{
"countries": [
{
"code": "string",
"tier": 1,
"monthlyCents": 0,
"needsKyc": true,
"outboundCallingAvailable": true
}
]
}{
"error": "Unauthorized"
}Get regulated-number KYC form spec GET
For a Tier 3/4 country, the fields the end customer must provide (Telnyx regulatory requirements) before a number can be ordered: text, date, address, or file (document) per requirement.
Search available numbers to purchase GET
Search the provider's inventory for numbers available to purchase in a country (default US). Optional filters narrow the results. The country must be offerable (see GET /v1/whatsapp/phone-numbers/countries).