Skyvern/docs/running-tasks/totp-verification-code.mdx

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---
title: Time-based One-time Passowrd
description: 'How Skyvern gets the one time password from you?'
---
Skyvern supports one-time password by fetching it from your endpoint. You can pass `totp_verification_url` when creating a task. Inside this endpoint hosted by you, you have to conform to the following schema:
## Set Up Your Time-based One-time Password (TOTP) Endpoint
For websites that requires a verification code (see https://www.twilio.com/docs/glossary/totp for more information) to complete a task, you have to set up a TOTP endpoint for Skyvern to fetch the verification code.
Here's the TOTP endpoint contract you should use:
Request (POST):
| Parameter | Type | Required? | Sample Value | Description |
| --- | --- | --- | --- | --- |
| task_id | String | yes | tsk_123 | The task ID that needs the verification to be done |
Response:
| Parameter | Type | Required? | Sample Value | Description |
| task_id | String | yes | tsk_123 | The task ID that needs the verification to be done |
| verification_code | String | no | 123456 | The verification code |
## Validate The Sender of The Request
Same as the webhook API, your server needs to make sure its Skyvern thats making the request.
- a python example for how to generate and validate the signature:
```python
def validate_skyvern_request_headers(request: Request) -> bool:
header_skyvern_signature = request.headers["x-skyvern-signature"]
payload = request.body() # this is a bytes
hash_obj = hmac.new(SKYVERN_API_KEY.encode("utf-8"), msg=payload, digestmod=hashlib.sha256)
client_generated_signature = hash_obj.hexdigest()
return header_skyvern_signature == client_generated_signature
```
SKYVERN_API_KEY: this is the [api key](/running-tasks/introduction) specific to your organization