Vapi is an optional voice-agent service for the AI Receptionist, for more advanced setups. VisionScaper fields: Vapi API key, Vapi webhook secret, Vapi phone address (SIP).

• A Vapi account. Rates are set by Vapi.
• WordPress administrator access.
• Webhook address from the top of Settings → VisionScaper AI Receptionist, ending in vapi.

1. Open the Vapi dashboard: dashboard.vapi.ai/org/api-keys, then API Keys.
2. Use the Private API Keys section (VisionScaper runs on your server, so use a private key, never a public one).
3. Click Add Key, type a Name, and select Create Private Token.
4. Click Copy ID to copy the key. You can view it later with the eye icon.
5. In WordPress go to Settings → VisionScaper AI Receptionist, Keys.
6. Paste it into Vapi API key.
7. Vapi webhook secret: enter the secret you set for Vapi’s server authentication. VisionScaper checks an HMAC-SHA256 signature in x-vapi-signature. How Vapi supplies this was not verified (Vapi’s server-authentication page could not be read).
8. Vapi phone address (SIP): paste your Vapi number’s SIP address if used. Where Vapi shows it was not verified.
9. Save. A blank box keeps the saved value.

• Use separate keys for testing and live.
• Check a key: Vapi says a request to its assistant list with the key returns your assistants, and a 401 means the key is invalid.

• “The voice service isn’t connected yet”: key box is empty.
• 401 errors: the key was copied wrong, or it is a public key.

• https://docs.vapi.ai/security-and-privacy/api-keys.md (read 2026-10-15)
• https://docs.vapi.ai/server-url/securing-endpoints (UNREACHABLE)

• Get your Retell AI keys
• Get your Bland keys