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

# API Overview

This page introduces the **technical foundations** of the Pleo API.

It is intended for **Pleo Partners** building **multi-customer ERP or Accounting System integrations**.

If you are evaluating Pleo for your internal accounting architecture, see the [Platform Overview](/docs/current/getting-started/platform-overview).

## Technical Infrastructure

* **REST API:** Standard HTTP verbs (GET, POST, PUT, DELETE)
* **JSON Format:** Consistent parsing across programming environments
* **OpenAPI Specification:** Full API documentation, client code generation, and automated testing support

## Integration Focus and Marketplace

* **Primary Scope:** ERP and Accounting System integrations built for multiple customers
* **App Marketplace:** Pre-built integrations available for supported systems via the [Pleo App Marketplace](https://www.pleo.io/en/integrations)

## Integration Scenarios

* **Multi-customer Integrations:**\
  Build and manage integrations that connect multiple client Accounting Systems to Pleo when pre-built Marketplace solutions are unavailable.

## API Capabilities by Use Case

Pleo’s APIs are designed to support bookkeeping, automation, and integration with downstream systems.

The APIs are organised around **common partner integration scenarios**, rather than individual endpoints.

### Bookkeeping and Accounting Exports

* **Export API**\
  Export approved, accounting-ready expense data from Pleo to an external ERP or Accounting System.

### Dimensions and Classification

* **Tags API**\
  Assign and manage tags (such as cost centres or dimensions) used for accounting and reporting.
* **Tax Code API**\
  Synchronise and manage tax codes used during expense classification and export.

### Automation and Events

* **Webhook Subscriptions API**\
  Subscribe to platform events and receive real-time notifications for export jobs and vendor updates.

### User and Identity Data

* **Employees API**\
  Retrieve employee details scoped to a company or organisation for reconciliation and automation.

### Marketplace Integrations

* **App Marketplace APIs**\
  Enable integrations that connect Pleo with third-party applications distributed through the App Marketplace.

These capabilities can be combined to build end-to-end integrations that synchronise data, automate workflows, and export accounting-ready records at scale.

## What Comes Next?

* **Get started as a Pleo Partner**

  Explore the [Early Access Programme (EAP)](/docs/current/getting-started/developer-partnership-programme) to onboard to Staging and register your integration intent.