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HomeStartupsArtificial Intelligenceact101

act101

Quality infrastructure for AI-written code for engineers and architects

Quality infrastructure for AI-written code for engineers and architects

Artificial IntelligenceDeveloper Toolssubscription· Updated Sep 21, 2026
Built byKage Martin
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act101.ai
act101 website
Domain Rating
25
Estimated· Domain Rating by Ahrefs
Monthly visits
—
No estimate yet
MRR
—
Not connected
PageSpeed
79
Estimated· Lighthouse mobile
Founded
—
OverviewCommunityScreenshotsDemoFeaturesPricingBusinessFAQTraffic & SEOTechnologyFoundersDiscussion

Overview

act101 provides a procedural verification layer for AI-written code, enabling engineers and architects to analyze, refactor, and attest changes made by AI agents with deterministic refactors and merge gates. It addresses the problem of agentic debt—structural and technical debt accruing at agent iteration speed—by offering tools to classify, verify, and rollback code changes, ensuring codebase quality and trustworthiness at agent speed.

Who is it for?
Engineers and architects managing AI-assisted codebases in commercial and open-source projects
Problem
AI agents iteratively modify codebases, accruing agentic debt—structural and architectural degradation that is not caught by traditional reviews or CI. This leads to coupling creep, silent behavior changes, and costly rewrites. Existing tools lack deterministic verification and rollback capabilities for AI-generated code changes.
Solution
act101 offers a closed-loop system with three stages: analyze the codebase with 42 analyzers, act with 182 deterministic refactor operations, and attest changes with a merge gate that provides a verdict and signed receipt. It integrates with AI coding agents to verify and gate every change, enabling instant undo and proof of behavior preservation.
What makes it unique
  • Deterministic refactors with instant undo and checkpointing
  • Merge gate providing a signed receipt and verdict for every change
  • Integration with multiple AI coding agents via MCP and CLI
  • Supports 163 grammars and 182 refactoring operations
Use cases
  1. 1Verify AI agent refactors before merging
  2. 2Analyze structural drift in codebases
  3. 3Automate deterministic code transformations
  4. 4Gate merges with behavior-preserving verification
  5. 5Port legacy codebases across languages
  6. 6Maintain code quality at agent speed
Alternative to
ast-grep comby semgrep

Community

0upvotes
In category
#1 of 91
Artificial Intelligence
Best day
—
+0 last 7 days
Upvotes since launch
Be the first to upvote — the chart starts with you.

Screenshots (3)

Features (6)

  • Analyze

    42 code analyzers to map code structure and detect issues before changes.

    01
  • Act

    182 deterministic refactor operations for safe, cross-file code transformations.

    02
  • Attest

    Merge gate that classifies changes, provides verdicts, signed receipts, and supports rollback.

    03
  • Integration

    Connects with AI coding agents like Claude Code, Cursor, Codex, Windsurf, Zed, and OpenCode.

    04
  • Porting

    Supports porting codebases across languages with parity verification.

    05
  • Instant Undo

    Allows undoing agent changes instantly with checkpointing.

    06

Pricing

Pricing page ↗
Lifetime deal
Builder Edition
Free

All queries, 5 codebase analyzers, rename and fix-auto for personal, non-commercial, and open-source use

Engineering Edition
29/ month

Full mutation toolkit, refactor verification with receipts, commercial license

Architecture Edition
59/ month

Advanced structural analysis, code scaffolding, whole-codebase taint, team licensing

Elite Edition
99/ month

Architecture plus 25 premium languages

  • COBOL
  • Fortran
  • Solidity
  • GPU & shaders
Enterprise
—

Tailored modernization programs with execution-grade parity and legacy codebase porting

Full pricing on the site
subscriptionFree plan · from 29/mo

Business details

Business model
SAAS
Audience
B2B
Platforms
web · linux · mac · windows · cli · api
Pricing model
subscription
Value proposition
act101 provides quality infrastructure for AI-written code by analyzing, acting, and attesting every change with deterministic refactors and merge gates to maintain codebase integrity at agent speed.

FAQ (5)

01Can an AI agent actually refactor my Python codebase with act101?+

Yes, act101 exposes 182 AST-aware refactor operations callable by AI agents, supporting cross-file updates, automatic checkpoints, and instant undo.

02Is cross-language porting production-ready?+

Porting is a workflow supported by 10 porting operations and parity verification, suitable for small well-tested modules today and large migrations via Enterprise engagement.

03How is act101 different from ast-grep, comby, or semgrep?+

Unlike pattern-matching tools, act101 provides typed, parameterized refactor operations with automatic checkpointing, instant undo, and a merge gate that returns deterministic verdicts and receipts.

04Which AI coding agents work with act101?+

act101 works with Claude Code, Cursor, OpenAI Codex, OpenCode, and others via MCP server and CLI interfaces.

05Why not just have the LLM review the diff?+

LLM reviews are probabilistic and can vary; act101's gate classifies changes deterministically against code structure and tests, providing consistent verdicts and receipts.

Traffic & SEO

Domain Rating
Sep 21 · by Ahrefs
25
Sep 21: DR 25
Domain Rating
25by Ahrefs
Global rank
—
Lighthouse
79 perf · 100 SEOmobile

Traffic, engagement, sources and keywords are Similarweb-style estimates, refreshed monthly. Verified traffic comes from a connected Google Analytics / Search Console.

Technology (7)

Detected from the site's HTML, headers and bundles
Font
Google Fonts
Mentioned on site
Paddle
Metadata
OOpen Graph
Other
CloudflareGoogle Analytics
Protocol
HHTTP/3
RUM
CCloudflare Browser Insights

Founders

  • K
    Kage Martin
    founder

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Discussion

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Details

Type
Web app
Based in
—
Team
—
Funding
Bootstrapped
Pricing
subscription
Business model
saas
Listed
Sep 2026
Updated
Sep 2026
Claimed
Not yet

Weekly ranking

#592026-W39585 products · September 21 – September 27, 2026↑ 0

Keywords

All tags
ai coderefactoringverificationDeveloper Toolscode-qualityAutomation

Collections

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Subscription Web ProductsArtificial Intelligence Products for WebSubscription API ProductsSubscription Artificial Intelligence ProductsDeveloper Tools Products for WebArtificial Intelligence Products built with CloudflareSubscription Mac ProductsSubscription Windows ProductsDeveloper Tools Products built with CloudflareSubscription Developer Tools Products

Compare

act101 vs Googleact101 vs Comp AIact101 vs PimEyesact101 vs SiteJourneyact101 vs MagicSlides

Platforms

weblinuxmacwindowscliapi

Links

  • X (Twitter)x.com/act101ai
  • Product Huntproducthunt.com/products/act101
  • LinkedInlinkedin.com/company/act101
  • GitHubgithub.com/act101-ai/act101
  • Instagraminstagram.com/act101.ai
  • Docsact101.ai/docs/
  • Blogact101.ai/blog/
  • Pricing pageact101.ai/pricing

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