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

# Overview

> Add human oversight to your AI workflows with our mobile-first platform. Create loops, send requests for human review, and receive structured responses via API.

## Overview

Keep your AI systems safe and accurate with human oversight. HITL.sh provides a mobile-first platform for routing critical decisions to human reviewers with instant notifications and structured responses.

<Card title="Create your first loop" icon="rocket" href="/first-loop" horizontal>
  Set up your first human-in-the-loop workflow in minutes with our API.
</Card>

## How it works

<Steps>
  <Step title="Create a loop">
    Set up a human review loop using the API. Each loop automatically generates invite codes and QR codes for easy team onboarding.
  </Step>

  <Step title="Add reviewers">
    Invite team members to join your loop using invite codes, QR codes, or direct links. They receive the mobile app for instant notifications.
  </Step>

  <Step title="Send requests">
    Submit review requests to your loop via API with customizable response types (single-select, text, rating, etc.) and timeout settings.
  </Step>

  <Step title="Human review">
    Reviewers receive push notifications on mobile and can respond immediately with structured feedback.
  </Step>

  <Step title="Get responses">
    Receive human decisions via webhooks or polling, with structured data ready for your application logic.
  </Step>
</Steps>

## Core features

Everything you need for human-in-the-loop workflows

<Columns cols={2}>
  <Card title="Mobile-First Reviews" icon="mobile" href="/mobile/home-screen">
    Reviewers receive instant push notifications and can respond on-the-go using our native mobile app for iOS and Android.
  </Card>

  <Card title="Flexible Response Types" icon="layers" href="/responses/types">
    Configure exactly how reviewers respond: single-select decisions, text feedback, ratings, numbers, or boolean choices.
  </Card>

  <Card title="Easy Team Onboarding" icon="user-plus" href="/mobile/join-loop">
    Invite codes, QR codes, and direct links make it simple to add reviewers to your loops instantly.
  </Card>

  <Card title="Real-time Integration" icon="webhook" href="/webhooks/global">
    Get instant webhooks when requests complete, or poll for status updates with structured JSON responses.
  </Card>
</Columns>

## Integrations

Integrate human oversight into any application or workflow

<Columns cols={3}>
  <Card title="RESTful API" icon="api" href="/api-reference/introduction">
    Full-featured REST API for creating loops, submitting requests, and receiving responses.
  </Card>

  <Card title="n8n Integration" icon="n8n" href="/integrations/n8n">
    Native n8n nodes for seamless workflow automation with human-in-the-loop steps.
  </Card>

  <Card title="Zapier Integration" icon="zap" href="/integrations/zapier">
    Connect HITL.sh to thousands of apps through Zapier's automation platform.
  </Card>

  <Card title="Webhooks" icon="webhook" href="/webhooks/global">
    Receive real-time notifications when human reviews are completed.
  </Card>

  <Card title="Mobile App" icon="smartphone" href="/mobile/home-screen">
    Native iOS and Android apps for reviewers to handle requests on-the-go.
  </Card>

  <Card title="Python & JavaScript" icon="code" href="/api-reference/introduction">
    Code examples and SDKs for popular programming languages.
  </Card>
</Columns>

## Use cases

Real-world applications for human-in-the-loop workflows

<Columns cols={2}>
  <Card title="Content Moderation" icon="shield-check" href="/examples/content-moderation">
    Review user-generated content for policy compliance with mobile-first moderation teams.
  </Card>

  <Card title="AI Quality Control" icon="beaker">
    Validate AI outputs before they reach customers, with structured feedback for model improvement.
  </Card>

  <Card title="Document Approval" icon="file-check">
    Route contracts, proposals, and sensitive documents through human approval workflows.
  </Card>

  <Card title="Risk Assessment" icon="shield-alert">
    Flag high-risk transactions, user accounts, or system anomalies for human review.
  </Card>
</Columns>

## Get started today

Ready to add human oversight to your AI workflows?

<Columns cols={2}>
  <Card title="Create Your First Loop" icon="plus" href="/first-loop">
    Follow our step-by-step guide to set up your first human-in-the-loop workflow with API examples.
  </Card>

  <Card title="Explore the API" icon="book" href="/api-reference/introduction">
    Browse our complete API documentation with code examples in Python, JavaScript, and cURL.
  </Card>

  <Card title="Download Mobile App" icon="mobile" href="https://my.hitl.sh">
    Get the HITL.sh mobile app for iOS and Android to start reviewing requests on-the-go.
  </Card>

  <Card title="Join a Loop" icon="users" href="/mobile/join-loop">
    Learn how to join existing loops using invite codes, QR codes, or direct links.
  </Card>
</Columns>