LexQ

LexQ

LexQ, LLC
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About

Antaeus is a semantic policy engine for developers who need to evaluate human-written rules about language, context, intent, or exceptions. Its open-source Go core and command-line interface load YAML or JSON policy artifacts, validate them against versioned schemas, and run named regression cases. The evaluator returns explicit allow, review, deny, or failure outcomes with policy identity and decision evidence, leaving authentication, authorization, and consequential actions to the application. Developers can run a deterministic, credential-free local workflow or use the experimental hosted dashboard and API to manage policies and evaluate inputs. An experimental OpenAI evaluator is also available. Antaeus is an early-stage project; hosted service capacity is shared and has no production SLA.

About

LexQ is a Decision Operations Platform for engineering teams. It lets teams define, test, and deploy business rules without touching application code, so business logic lives outside the deploy pipeline and every change can be proven before production. LexQ provides built-in Impact Simulation, Decision Replay, A/B testing across rule versions, Git-style versioning with instant rollback, a full audit trail, and an MCP server for AI agent integration. - Visual rule builder with conditions, actions, and priorities - Impact Simulation: test rule changes against real production data before deploy - Decision Replay: re-evaluate past production decisions against a candidate version - A/B testing: split live traffic across rule versions - Git-style versioning with instant rollback - Full audit trail: who published and deployed what, when, and why - MCP server for AI agent integration (Claude, Cursor, any MCP client) - REST API + CLI for full automation

Platforms Supported

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

Audience

Developers building custom content moderation, marketplace listing policies, and applications that evaluate human-written business rules.

Audience

For engineering teams

Support

Phone Support Not Supported
24/7 Live Support Not 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

No images available

Screenshots and Videos

Pricing

Free
The local Go engine is available under the Apache-2.0 license at no charge. Hosted usage includes a shared free allowance of up to 100 completed decisions per day, subject to shared capacity and without a production SLA. Paid usage is available through credit purchases starting at $10; hosted evaluation charges are usage-based.
Free Version Supported
Free Trial Not Supported

Pricing

$99/month
Free: $0/month, including 1,000 executions, 100 simulated records, and 100 replayed records per month. Growth: $99/month for 100,000 executions, 10,000 simulated records, and 10,000 replayed records per month; overages are billed per use. Pro: $299/month for 1,000,000 executions, 100,000 simulated records, and 100,000 replayed records per month; overages are billed per use. Enterprise pricing is custom.
Free Version Supported
Free Trial Not Supported

Reviews/Ratings

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

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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 Not Supported
In Person Not Supported

Training

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

Company Information

Antaeus
antaeus.io

Company Information

LexQ, LLC
Founded: 2026
United States
lexq.io

Alternatives

Alternatives

Leapter

Leapter

Leapter GmbH
Higson

Higson

Decerto
Decisimo

Decisimo

5.0 out of 5 stars

Categories

Categories

Business Rules Management Systems (BRMS) Features

Access Control / Permissions Supported
Code Development Environment Not Supported
Deploy Across Platforms Not Supported
Flexible Hosting Options Not Supported
Lifecycle Management Supported
No Code Development Not Supported
Simulation Supported
Validation Tools Not Supported

Integrations

Claude Not Supported
Cursor Not Supported
Model Context Protocol (MCP) Not Supported
OpenAI Supported

Integrations

Claude Supported
Cursor Supported
Model Context Protocol (MCP) Supported
OpenAI Not Supported
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