> ## Documentation Index
> Fetch the complete documentation index at: https://docs.picaos.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Overview

> Work with any integration directly through a single API.

The Passthrough API is a powerful tool that allows you to interact directly with the underlying API of any integration.

<Warning>
  Responses from the Passthrough API are shaped to match the response from the underlying API.
</Warning>

## Base URL

```
https://api.picaos.com/v1/passthrough/{path}
```

Where `{path}` corresponds to the endpoint path in the third-party API's documentation.

## Required Headers

<ParamField header="x-pica-secret" type="string" required>
  Your Pica API key
</ParamField>

<ParamField header="x-pica-connection-key" type="string" required>
  The connection key for the specific integration
</ParamField>

<ParamField header="x-pica-action-id" type="string" required>
  The unique identifier of the action to execute, which you can obtain from the [Actions directory](https://app.picaos.com/tools).
</ParamField>

<br />

<Info>
  If you're looking to see how you can construct requests to the Passthrough API, check out the [Building Requests](/api-reference/passthrough/building-requests) guide.
</Info>