---
page_type: error
code: 70052
message: "70052: Public Key Client Validation Required For Account"
level: ERROR
---

## Error - 70052

### Public Key Client Validation Required For Account

The account is only allowed to perform Public Key Client Validation requests at Twilio. All other types of authentication are disabled for the account.

#### Possible Causes

- The Twilio-Client-Validation is not present in the request.

#### Possible Solution:

- Ensure the Twilio-Client-Validation header is present in the request and valid.
- Disable forcing Client Validation feature at the Console if not needed.