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About

HumanLayer is an API and SDK that enables AI agents to contact humans for feedback, input, and approvals. It guarantees human oversight of high-stakes function calls with approval workflows across Slack, email, and more. By integrating with your preferred Large Language Model (LLM) and framework, HumanLayer empowers AI agents with safe access to the world. The platform supports various frameworks and LLMs, including LangChain, CrewAI, ControlFlow, LlamaIndex, Haystack, OpenAI, Claude, Llama3.1, Mistral, Gemini, and Cohere. HumanLayer offers features such as approval workflows, human-as-tool integration, and custom responses with escalations. Pre-fill response prompts for seamless human-agent interactions. Route to specific individuals or teams, and control which users can approve or respond to LLM requests. Invert the flow of control, from human-initiated to agent-initiated. Add a variety of human contact channels to your agent toolchain.

About

Preloop is the open source AI agent control plane for agents that take real actions. It combines an MCP firewall for tool access, an AI model gateway for cost, safety, and attribution, policy-as-code with human approvals, runtime session observability, and audit trails in a single self-hostable platform. AI agents can deploy code, change infrastructure, move money, touch production data, and burn model spend in seconds, so Preloop helps teams control what agents can do, how much they spend, and which actions require human approval. It works with OpenClaw, Hermes, Claude Code, Codex CLI, Cursor, Gemini CLI, Windsurf, Cline, OpenCode, and any MCP-compatible agent or managed runtime. Access rules can inspect arguments and context, not just tool names, with CEL expressions for fine-grained conditions. Teams can start with observability, then layer in approvals and deny rules without SDKs or invasive app changes.

Platforms Supported

Windows
Mac
Linux
Cloud
On-Premises
iPhone
iPad
Android
Chromebook

Platforms Supported

Windows
Mac
Linux
Cloud
On-Premises
iPhone
iPad
Android
Chromebook

Audience

Companies seeking a solution to integrate human oversight into their AI agent operations

Audience

Platform, DevEx, security, and operations teams that need to govern production AI agents, control tool access, approve risky actions, and maintain audit-ready visibility

Support

Phone Support
24/7 Live Support
Online

Support

Phone Support
24/7 Live Support
Online

API

Offers API

API

Offers API

Screenshots and Videos

Screenshots and Videos

Pricing

$500 per month
Free Version
Free Trial

Pricing

$290 per month
Free Version
Free Trial

Reviews/Ratings

Overall 0.0 / 5
ease 0.0 / 5
features 0.0 / 5
design 0.0 / 5
support 0.0 / 5

This software hasn't been reviewed yet. Be the first to provide a review:

Review this Software

Reviews/Ratings

Overall 0.0 / 5
ease 0.0 / 5
features 0.0 / 5
design 0.0 / 5
support 0.0 / 5

This software hasn't been reviewed yet. Be the first to provide a review:

Review this Software

Training

Documentation
Webinars
Live Online
In Person

Training

Documentation
Webinars
Live Online
In Person

Company Information

HumanLayer
United States
www.humanlayer.dev/

Company Information

Preloop
United States
preloop.ai/

Alternatives

Alternatives

Tuning Engines

Tuning Engines

CerebrixOS
Traccia

Traccia

Algen AI
BAND

BAND

BAND.ai

Categories

Categories

Integrations

Slack
Amazon Bedrock
Claude
Claude Code
Codestral Mamba
Gemini 1.5 Flash
Gemini 1.5 Pro
Gemini 2.0 Flash
Gemini CLI
Gemini Nano
Google AI Plus
LangChain
Llama 3.1
LlamaIndex
Microsoft Teams
Ministral 8B
Mistral 7B
Mistral Large
Mistral NeMo
Mistral Small

Integrations

Slack
Amazon Bedrock
Claude
Claude Code
Codestral Mamba
Gemini 1.5 Flash
Gemini 1.5 Pro
Gemini 2.0 Flash
Gemini CLI
Gemini Nano
Google AI Plus
LangChain
Llama 3.1
LlamaIndex
Microsoft Teams
Ministral 8B
Mistral 7B
Mistral Large
Mistral NeMo
Mistral Small
Claim HumanLayer and update features and information
Claim HumanLayer and update features and information
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Claim Preloop and update features and information