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About

Prefactor is a real-time evaluation, observability, and reliability platform for production AI agents. It scores every run the moment it happens for quality, drift, cost, and data risk, then wires those evaluations into action so a failing agent is caught live instead of only appearing on a dashboard afterward. Teams can observe every model call, tool invocation, and decision as structured traces and spans, run LLM-as-judge, technical, qualitative, and custom evaluations on each step, and attach context from GitHub, Linear, Jira, databases, internal APIs, or other sources as ground truth. When a run crosses a defined threshold, Prefactor can block or throttle it, pause a sensitive action, or route it to a person for approval, modification, or rejection before execution, with every decision logged. The CLI discovers agents without a platform migration, while TypeScript and Python SDKs provide native support for LangChain, Claude, Vercel AI, OpenClaw, and LiveKit.

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 Not Supported
Mac Not Supported
Linux Not Supported
Cloud Supported
On-Premises Not Supported
iPhone Not Supported
iPad Not Supported
Android Not Supported
Chromebook Not Supported

Platforms Supported

Windows Not Supported
Mac Not Supported
Linux Not Supported
Cloud Supported
On-Premises Supported
iPhone Not Supported
iPad Not Supported
Android Not Supported
Chromebook Not Supported

Audience

AI engineering and platform teams that need to evaluate, monitor, and improve production AI agents for quality, drift, risk, and cost in real time

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 Not Supported
24/7 Live Support Supported
Online Supported

Support

Phone Support Not Supported
24/7 Live Support Not Supported
Online Supported

API

Offers API Supported

API

Offers API Supported

Screenshots and Videos

Screenshots and Videos

Pricing

$250 per month
Free Version Supported
Free Trial Not Supported

Pricing

$290 per month
Free Version Supported
Free Trial Supported

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 Supported
Webinars Not Supported
Live Online Supported
In Person Not Supported

Training

Documentation Supported
Webinars Not Supported
Live Online Supported
In Person Not Supported

Company Information

Prefactor
Australia
prefactor.tech/

Company Information

Preloop
United States
preloop.ai/

Alternatives

Alternatives

Traccia

Traccia

Algen AI
Tuning Engines

Tuning Engines

CerebrixOS
BAND

BAND

BAND.ai

Categories

Agentic AI Supported

Categories

Agentic AI Supported
AI Control Planes Supported
AI Governance Supported

Integrations

Amazon Bedrock Supported
Claude Code Supported
Cursor Supported
OpenClaw Supported
Slack Supported
CrewAI Supported
Datadog Supported
ElevenLabs Supported
Google Workspace Supported
Hermes Not Supported
LiveKit Supported
Mattermost Not Supported
MongoDB Supported
Okta Supported
OpenAI Supported
OpenCode Not Supported
Python Supported
Render Supported
Snowflake Supported
TypeScript Supported

Integrations

Amazon Bedrock Supported
Claude Code Supported
Cursor Supported
OpenClaw Supported
Slack Supported
CrewAI Not Supported
Datadog Not Supported
ElevenLabs Not Supported
Google Workspace Not Supported
Hermes Supported
LiveKit Not Supported
Mattermost Supported
MongoDB Not Supported
Okta Not Supported
OpenAI Not Supported
OpenCode Supported
Python Not Supported
Render Not Supported
Snowflake Not Supported
TypeScript Not Supported
Claim Prefactor and update features and information
Claim Prefactor and update features and information
Claim Preloop and update features and information
Claim Preloop and update features and information