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Mirrord

Free

Run local code as if it were a pod in a remote Kubernetes cluster: real env vars, DNS, network, traffic. Used by AI coding agents and developers.

FreeFree tier
Type
Open Source
Founded
2022
Company
MetalBear
Visit Website GitHub (5.1k stars)

About Mirrord

Mirrord is a Kubernetes development platform that enables developers and AI coding agents to run local code against a real, shared Kubernetes cluster. It intercepts network traffic, environment variables, and filesystem access, routing them to the staging environment in real time, so code runs locally but connects to live APIs, databases, and services from the first line of code. Mirrord works with any language, IDE, or AI agent (Claude, Cursor, Copilot, Codex) and operates at the OS level without plugins or config changes. It provides a fast feedback loop – test changes against real infrastructure in seconds, without deploying or waiting for CI. Mirrord is open source (MIT license, built in Rust) and is used by teams at monday.com, SurveyMonkey, and NAB. It offers a free OSS version and paid Team ($50/seat/mo) and Enterprise plans with collaboration, RBAC, queue splitting, database branching, preview environments, and support for cloud-based AI agents.

Key Features

Connects local code to a real Kubernetes cluster with live env vars, DNS, network, and traffic
Operates at the OS level, supporting any language, IDE, or Kubernetes cluster without plugins
Works with AI coding agents (Claude, Cursor, Copilot, Codex) for instant feedback
One-command execution: `mirrord exec --target deployment/my-service` or IDE click
Operator for session management, RBAC, traffic routing, and isolation in shared clusters
Supports queue splitting, multi-pod deployments, Jobs/StatefulSets, and database branching
Real-environment CI: run integration suites against a shared cluster with real databases and APIs
Preview environments for agent-written features connected to real staging dependencies
Free and open-source version available (MIT license, Rust)

Pros & Cons

Pros
  • Eliminates the need to deploy to test changes – code runs locally, connects remotely
  • Works with any language, IDE, and Kubernetes cluster, no configuration changes needed
  • Free open-source version available for individual developers
  • Claims 98% faster dev cycle time and reduces CI wait from minutes/hours to seconds
  • No configuration drift – uses real traffic and data from the staging environment
  • AI agents can verify work instantly, improving code quality 2–3x
Cons
  • Requires a running Kubernetes cluster with the mirrord Operator installed
  • Team plan costs $50/seat/month for shared cluster access, which may add up for large teams
  • Enterprise plan needed for cloud-based AI agents, CI runs, and preview environments
  • Complexity of Kubernetes infrastructure may be overhead for small teams or simple projects

Best For

Fast feedback loop for AI coding agents – test changes against real staging immediatelyAutonomous AI agents that explore real services, schemas, and queues before writing codeReal-environment CI testing with actual databases, queues, and upstream APIsPreview environments for agent-written features connected to real staging dependenciesIndividual developers debugging and testing against a shared staging cluster without conflicts

FAQ

What is mirrord?
Mirrord is a Kubernetes development platform that connects developers and AI agents to real cloud environments (real APIs, databases, services) so every change is validated against real infrastructure from the first line of code. Used by 5000+ engineers including monday.com, SurveyMonkey, and NAB.
How are seats calculated?
On the Team plan, you pay per active developer – any user who runs mirrord in a calendar month counts as one seat. AI agents run locally under that developer's seat at no extra cost. Enterprise adds concurrent sessions for cloud-run agents, CI, and preview environments.
Can I run AI agents with mirrord, and how are they priced?
Yes. Agents your developers run locally connect through mirrord just like the developer does, and are covered by that developer's seat at no extra cost on any plan. Running agents in the cloud uses concurrent sessions, available on Enterprise.
Is there a free version of mirrord?
Yes. Mirrord OSS is free and open source, great for individual developers. The Team and Enterprise plans add collaboration features, an operator for shared cluster access, and support.