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

# KYB overview

> API reference for Know Your Business verification flows

## Overview

The KYB API provides functionality for managing:

* Business verification flows
* Dynamic questionnaires
* Answer management
* Status tracking
* Validation rules

## Core Concepts

### Flow Status

| Status        | Description      | Next States |
| ------------- | ---------------- | ----------- |
| `NOT_STARTED` | Flow initialized | PENDING     |
| `PENDING`     | In progress      | COMPLETE    |
| `COMPLETE`    | Flow finished    | -           |

### Section Types

| Type                   | Description      | Required | Order |
| ---------------------- | ---------------- | -------- | ----- |
| `company_information`  | Company details  | Yes      | 1     |
| `address_details`      | Address info     | Yes      | 2     |
| `director_information` | Director details | No       | 3     |
| `ownership_structure`  | Ownership info   | No       | 4     |

### Question Types

| Type     | Description     | Format | Validation      |
| -------- | --------------- | ------ | --------------- |
| `text`   | Text input      | String | Length, pattern |
| `select` | Single choice   | Option | Required option |
| `multi`  | Multiple choice | Array  | Min/max items   |
| `file`   | File upload     | Binary | Size, type      |

## Validation Rules

### Answer Rules

* Required fields complete
* Valid format per type
* Business logic rules
* Cross-field validation

### Flow Rules

* Sequential completion
* Section dependencies
* Required documents
* Status transitions

### Document Rules

* PDF/JPEG formats
* Max size: 10MB
* Clear resolution
* Valid signatures

## Security Requirements

* JWT authentication
* Role-based access
* Answer encryption
* Audit logging

<Note>
  See individual endpoint documentation for detailed request/response formats and examples.
</Note>