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Mneme HQ Developer Tools

Free (open source)

Mneme HQ (Developer Tools): Open-source engineering governance that enforces approved ADRs and standards on AI coding agents. Pricing: Free (open source). (data verified August 2026)

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About Mneme HQ

What is Mneme HQ?

Mneme HQ is an open-source engineering governance tool for AI coding agents. It translates approved Architectural Decision Records (ADRs) and team engineering standards into automated guide, warn, or block verdicts on proposed code changes. Each verdict is traced back to a specific decision, giving teams a defensible, audit-ready workflow.

The problem it solves

AI coding agents can generate code that works but violates your system architecture — for example, a frontend service directly instantiating a data-platform client. Mneme HQ catches these issues before they are merged, preventing architecture drift and security risks. It ensures that human architects retain authority and that every AI-generated change is checked against the agreed system design.

Who it is for

Mneme HQ is designed for platform and engineering teams that use AI coding assistants and need to enforce architectural constraints. It is not a general-purpose code linter; it focuses on architectural governance. Typical users include teams with a formal ADR process, a designated platform team, or those working with multiple agents and repositories.

Real use cases

Enforce data-access boundaries across services, prevent unauthorized dependency usage, and standardize frontend-to-backend communication paths. Run the dry-run demo to see verdicts on your own code, then integrate the CLI into your CI/CD pipeline.

Key features

  • ADR-driven enforcement — Automatically converts approved ADRs into actionable guide, warn, or block rules.
  • Verdict engine — Applies rules to proposed changes before merge, providing a clear pass/fail result.
  • Traceable governance — Every verdict is linked to its source ADR or standard, ensuring full accountability.
  • Local CLI — Installable via pip, runs on macOS, Linux, and Windows.
  • Open source — MIT licensed, self-hostable, with source code available on GitHub.
  • Agent-agnostic — Works with the agents and repositories your team already uses.

SaaSpartout Score

6.8 /10
Ease of use 6.5
Features depth 7.5
Value for money 8.5
Support quality 5.5
Integrations 6.0
Scalability 7.0
Documentation 6.5
Onboarding speed 7.0

Editorial score from our review methodology — not user ratings.

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Mneme HQ Pricing

Mneme HQ pricing: Free (open source). Billing model: Free.

For comparison: the median starting price in Developer Tools is $19.99/month, measured across 301 tools we track. See the full SaaS Pricing Index →

Open Source (Free)

Self-hosted, MIT licensed. Includes the full CLI, rule engine, and demo. No API key required for the dry-run demo. Run `pip install mneme-hq` to get started.

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Frequently asked questions

How much does Mneme HQ cost?
Mneme HQ is open source and free to install and self-host. You can get started immediately with `pip install mneme-hq`.
Is there a free trial?
There is no paid trial because the core tool is completely free and open source under the MIT license.
What is Mneme HQ used for?
It is used for engineering governance of AI coding agents, ensuring that AI-generated code changes comply with approved architectural decisions (ADRs) and standards.
Who is Mneme HQ best for?
It is best for platform engineering and development teams that want to maintain architectural integrity while leveraging AI coding assistants.
Does Mneme HQ work with any AI coding agent?
Yes, it is agent-agnostic. It works by checking proposed code changes against a decision corpus, regardless of which AI tool generated the change.
What are the main alternatives to Mneme HQ?
Mneme HQ occupies a unique niche in AI governance. Alternatives might include custom linter configurations or traditional code review processes, but Mneme HQ is specifically designed for codifying architectural decisions for AI agents.
What is a key limitation of Mneme HQ?
The open-source version is a CLI tool that requires manual setup and integration into your existing workflow. It does not include a managed cloud dashboard or GUI.

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