> ## 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

> A guide to the Pica API fundamentals

Pica provides powerful APIs that enable you to build, deploy, and scale AI agents with seamless access to over 200+ integrations and tools.
Connect your AI to QuickBooks, Salesforce, HubSpot, Shopify, and more leading platforms through our Passthrough API to unlock real-time data and automation capabilities.

## Passthrough API

The Passthrough API provides a single endpoint to access 25,000+ actions across all integrations.

* Execute actions with QuickBooks, Salesforce, HubSpot, Shopify and [more](https://app.picaos.com/tools)
* Built-in authentication and connection management for all integrations
* AI SDK support for LLM capabilities (Vercel AI SDK, LangChain, MCP, etc.)

## Core API

The Core API provides endpoints to view and manage available integrations, tools, and connections.

* View all available integrations and tools
* View the details of specific integrations or tools
* View available actions for specific integrations
* View and manage your connections
* Delete specific connections