# Subprocessors

We employ third party vendors and service providers on our behalf to perform services, or to assist us in analyzing how Zephyr is used.  These third parties have access to Users' Personal Information to perform tasks on our behalf and are obligated not to disclose or use it for any other purpose as defined in the [Privacy Statement](/privacy-and-security/privacy-statement.md).

| Name                      | Description            | Location      |
| ------------------------- | ---------------------- | ------------- |
| Amazon Web Services (AWS) | Hosting Provider       | United States |
| Stripe                    | Payment Processor      | United States |
| Auth0                     | Authentication service | United States |
| Sendgrid                  | Email infrastructure   | United States |
| Google Analytics          | Website Analytics      | United States |
| Apollo.io                 | Sales and Marketing    | United States |


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# Agent Instructions: Querying This Documentation

If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://wiki.zephyr-sim.com/privacy-and-security/security/subprocessors.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.
