# API Proxy - [Salesforce API Proxy Guide](https://docs.stacksync.com/two-way-sync/api-proxy/salesforce.md): The easiest Salesforce API proxy you’ll ever use. Perform real-time operations without connected apps, tokens, or complex Salesforce setup. - [HubSpot](https://docs.stacksync.com/two-way-sync/api-proxy/hubspot.md): The simplest HubSpot API you have ever seen! - [Attio](https://docs.stacksync.com/two-way-sync/api-proxy/attio.md): The simplest Attio API you have ever seen! - [Pipedrive](https://docs.stacksync.com/two-way-sync/api-proxy/pipedrive.md): The simplest Pipedrive API you have ever seen! - [Airtable API Proxy Overview](https://docs.stacksync.com/two-way-sync/api-proxy/airtable.md): Overview of the Airtable API proxy and how Stacksync enables secure, simplified access to Airtable data. --- # 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://docs.stacksync.com/two-way-sync/api-proxy.md?ask= ``` 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.