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Runloop

Sandboxed devboxes, blueprints and snapshots for building and running AI software engineering agents.

Freemium

What is Runloop?

Runloop is a platform for building and optimizing AI agents that do software engineering work. Its core unit is the devbox, a secure sandbox where agents run and where generated code can be tested. Blueprints define reusable environments, snapshots save a devbox's disk state so you can suspend, resume or fork it, and code mounts pull a repository into a new devbox. Axons provide event streams for coordinating agents, users and external systems. Agent gateways proxy LLM requests without exposing API keys to the sandbox, and an MCP hub gives agents tool access through one endpoint. Teams use it to build agents that review pull requests, answer questions about a codebase, write tests or generate UI components. The Basic plan is free plus usage-based compute, Pro is $250 /month plus usage, and Enterprise is custom. New accounts get a Pro trial with $50 in credit.

Use cases

  • Run AI coding agents in isolated sandboxes
  • Test agent-generated code safely
  • Automate pull request review
  • Generate tests for existing codebases
  • Snapshot and fork development environments
  • Give agents controlled access to MCP tools
  • Run browsers or desktops for agents

Who it's for

  • AI agent developers
  • Engineering teams
  • Developer-tool companies
  • Regulated enterprises

Why use Runloop

  • Gives agents a safe place to run code without building sandbox infrastructure yourself.
  • Snapshots and suspend and resume let you pause work and return to the same state.
  • Usage is billed per second based on actual consumption, with no minimums.
  • The vendor states the platform is SOC2 compliant and managed around the clock.

Runloop features

  • Devbox sandboxes with predefined and custom sizes
  • Blueprints and prebuilt blueprint images
  • Snapshots with suspend and resume
  • Code mounts from repositories
  • Axons event streams and broker for agents
  • Agent gateways that keep LLM keys out of the devbox
  • MCP hub with tool-level access control
  • Docker-in-Docker, Playwright browser and Ubuntu desktop
  • Object storage for blueprints and devboxes
  • SDKs for programmatic control

Runloop integrations

  • GitHub
  • Slack
  • Anthropic
  • OpenAI

How to get started with Runloop

  1. Create an account and an API key; the Pro Trial starts without a credit card.
  2. Define a blueprint for the environment your agent needs, or start from a prebuilt one.
  3. Launch a devbox through an SDK, mount your repository and run your agent inside it.
  4. Use snapshots to suspend, resume or fork the devbox state.
  5. Watch usage on the dashboard and upgrade when you reach trial caps.

Runloop limitations

  • Pro Trial caps at 3 running devboxes, 5 blueprints, 10 snapshots and 3 storage objects.
  • Trial devboxes are limited to the X Small, Small and Medium sizes with a one-hour keep-alive.
  • Usage-based compute and storage are billed separately from the plan.
  • Reinforcement fine-tuning, VPC deployment and priority support are Enterprise features.

Runloop pricing

Yes, Runloop has a free plan. Paid plans start at $250 per month, according to the official pricing page on .

Runloop plans

  • Basic

    Free + usage-based compute

    • 100 GB free storage
    • Radar features
    • Devboxes and blueprints
    • Snapshots
    • Email support
  • Pro

    $250 /month + usage

    • 1 TB free storage
    • Everything in Basic
    • Suspend and resume
    • Repo connections
    • Beta features access
    • Slack support
  • Enterprise

    Custom

    • Everything in Pro
    • Reinforcement fine-tuning
    • Priority support
    • Deploy to VPC
    • Custom free storage

Plans as listed on the official pricing page on . Prices can change and may vary by country or exclude tax. Check the official pricing page.

Runloop alternatives

The main Runloop alternatives listed on Debuly are E2B, Modal, agent-browser, Hyperbrowser, Bernstein and Browser Use. The table compares pricing and platforms; order is A–Z.

Runloop compared with its alternatives
ToolPricingStarting pricePlatforms
RunloopFreemium$250/moAPI, Web
agent-browserOpen source—CLI, macOS, Linux, Windows
BernsteinOpen source—CLI, Self-hosted
Browser UsePaid$0.02, usage-basedAPI, Web, CLI
E2BFreemium$150/moAPI, CLI, Web, Python SDK
HyperbrowserFreemium$30/moAPI, CLI, Python SDK
ModalFreemium$250/moWeb, API, CLI, Python
  1. agent-browser

    Native Rust command-line browser automation tool built for AI agents, with compact accessibility snapshots and 50+ commands.

  2. Bernstein

    Open-source Python orchestrator that runs CLI coding agents in parallel git worktrees, with a tamper-evident audit log.

  3. Browser Use

    Cloud browsers and hosted web agents for AI, plus an MIT-licensed open-source browser agent, billed pay-as-you-go from $0.02 per hour.

  4. E2B

    Cloud sandboxes where AI agents run code safely, with Python and JavaScript SDKs and per-second usage billing.

  5. Hyperbrowser

    Cloud infrastructure that gives AI agents hosted Chrome sessions, isolated sandboxes, and web fetch, crawl and search APIs.

  6. Modal

    Serverless cloud platform for running AI inference, training, batch jobs and agent sandboxes, billed per second of compute.

Runloop FAQ

How much does Runloop cost?

Basic is free plus usage-based compute, Pro is $250 /month plus usage, and Enterprise is custom. Example usage rates include $0.108 / CPU-hr and $0.0252 / GB-hr for devbox memory.

Is there a free plan for Runloop?

Yes. The Basic plan is listed as free plus usage-based compute, and new accounts receive a Pro Trial with $50 in usage credit and no credit card required.

What plans does Runloop have?

Basic, Pro and Enterprise. Pro adds suspend and resume, repo connections, beta features and Slack support, while Enterprise adds reinforcement fine-tuning, priority support and VPC deployment.

Does Runloop have an API or SDK?

Yes. The documentation describes object-oriented SDKs, with Python and TypeScript examples for creating devboxes.

Who is Runloop for?

Teams that build AI agents for coding tasks such as code review, test generation and pair programming, from prototypes to production.

What are alternatives to Runloop?

Alternatives include E2B, Modal, Daytona, CodeSandbox and Vercel Sandbox.

Sources & verification

Facts on this page come from the official sources below, each with the date we read it. Written by Debuly; the vendor did not review this page.

Image credits

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