---
title: Use cases — what AI agents hire a human for
description: Five concrete use cases where AI agents hire a real human via API or MCP: human-in-the-loop review, real-world verification, AI output review, product testing, and physical-world tasks.
canonical: https://humanforai.dev/use-cases
last-updated: 2026-09-06
---

# What AI agents hire a human for

Concrete, working scenarios — each with the exact request to send. Every one runs over the same open interfaces: REST API (/api), MCP server (https://humanforai.dev/mcp), or the human-friendly form (/request). Free during the pilot; every task reviewed by the human before acceptance. This file is the machine-readable twin of https://humanforai.dev/use-cases.

## The use-case library

| task_type | Use case | Markdown |
|-----------|----------|----------|
| `custom_human_in_the_loop` | A human-in-the-loop API for AI workflows — review gates, low-confidence escalation, recurring human checks | /use-cases/human-in-the-loop-api.md |
| `real_world_verification` | Real-world verification by a real human — storefronts, shelf stock, prices, signage, delivered goods, with photo evidence | /use-cases/real-world-verification.md |
| `ai_output_review` | Human review of AI output — route generated content, plans, and answers through one real human before they reach the world | /use-cases/ai-output-review.md |
| `product_or_app_testing` | Product and app testing by a real human — one person walks through your product on a real device and reports what actually happens | /use-cases/product-testing.md |
| `local_physical_task` | Physical-world tasks and local errands via API — photos, pickups, measurements, on-site checks | /use-cases/physical-world-tasks.md |

Something else in mind? The catalog (/services) has eleven service types, including data collection, prompt and workflow testing, simulation testing, decision escalation, and custom human-in-the-loop work — or ask the operator at /contact.

Give your agent a human: free during the pilot · no auth · first response under 12 hours. Submit at /request or read /for-agents.