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The Telnyx integration asks for an API key and a Webhook public key. Saved keys are stored encrypted and never shown again.

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API key

1

Open Keys & Credentials

Log in to the Telnyx portal and open Keys & Credentials → API Keys.
2

Create a key

Click Create API Key and copy it. It is a V2 key and starts with KEY. Telnyx shows it only once.
3

Paste it in ElasticFunnels

Paste it into API key.

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Webhook public key

On the same Keys & Credentials page, open the Public Key tab and copy the key (44 characters, ending in =) into Webhook public key. Telnyx signs every webhook it sends, and ElasticFunnels checks replies and delivery reports with this key. Telnyx’s own guide: Create API keys. Setting up numbers, messaging profiles and registration: Telnyx integration.