VAPI•7mo ago

Need help with BuildWithVapi

Having trouble with Initializing the call - Tried using both Public and private keys -- Facing 400,401 or 404 errors -- It keeps on loop with these 3 -- After entering a phone number - I'm not getting the call - can you please help?
#buildwithvapi

Vapi Support BotAPP•6/8/25, 5:04 AM

Make sure you are using your Public API key (not the private key) when initializing the Vapi client in your web app. For example:

import Vapi from '@vapi-ai/web';
const vapi = new Vapi('YOUR_PUBLIC_API_KEY');

import Vapi from '@vapi-ai/web';
const vapi = new Vapi('YOUR_PUBLIC_API_KEY');

Double-check that your assistant and phone number are set up and active in the Vapi dashboard. Using the wrong key or an invalid assistant/phone number can cause 400/401/404 errors.

Sources:

⤵️ Mention @Vapi Support Bot for follow-ups 🐥

dry-scarletOP•6/8/25, 5:10 AM

Used public key - getting 400 error, used private key - getting 401 error

extreme-purple•6/8/25, 5:25 AM

Send your workflow id

dry-scarletOP•6/8/25, 5:25 AM

sure

dry-scarletOP•6/8/25, 5:27 AM

Sorry my bad -- haven't initiated a workflow yet -- I just created a test phone number and I've my project settings -- Do I need to create workflow ID before I start testing calls out?

extreme-purple•6/8/25, 5:45 AM

You need to create and assign a workflow assistant to your phone number before testing calls without it, the call won’t work and you’ll see 400/401/404 errors. Make sure you’re using the correct assistant Id, phoneNumber Id, and a valid API key in your request..

Need help with BuildWithVapi

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