The Passthrough API is a powerful tool that allows you to interact directly with the underlying API of any integration.
Responses from the Passthrough API are shaped to match the response from the underlying API.

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Base URL

https://api.picaos.com/v1/passthrough/{path}
Where {path} corresponds to the endpoint path in the third-party API’s documentation.

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Required Headers

  • x-pica-secret: Your Pica API key
  • x-pica-connection-key: The connection key for the specific integration

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Constructing the Request

The easiest way to construct the request is to use the Pica MCP Server in your IDE. In Cursor, open the MCP Settings and add the following: 
{
  "mcpServers": {
    "pica": {
      "command": "npx",
      "args": [
        "@picahq/mcp"
      ],
      "env": {
        "PICA_SECRET": "your-api-key"
      }
    }
  }
}
Once you’ve added the MCP Server, you can simply prompt Cursor to construct the request for you based on all the specific details (filters, fields, etc.) you need.

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Examples

  1. Add an endpoint that uses Pica to fetch the list of contacts from Salesforce.
  2. When my form is submitted, use Pica to send an email using Gmail.
  3. Using Pica, create a new lead in HubSpot when a user signs up.
  4. Using Pica, add an endpoint that fetches the list of invoices from QuickBooks and displays them in a table.
  5. Build a paginatable table component that fetches and displays QuickBooks invoices with search and sort using Pica.
  6. Create a page with a form that can post messages to multiple Slack channels with message scheduling using Pica.