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Ranking for AI agents

Best tools for AI agents to execute code in sandboxes

Give an agent an isolated runtime in which it can execute code, commands, or long-running work safely. We reviewed 14 products from 12 companies on a 100-point evidence score. These 10 earned a place.

Updated Oct 20, 202614 products reviewed12 companies

Market noteScores reflect documented task fit, adoption evidence, product detail, pricing and market fit. Vendor claims remain unverified unless independently corroborated. Missing evidence indicates uncertainty, not poor product quality.

  1. 1

    E2B

    Agents execute code and terminal commands in isolated microVMs, return outputs into workflows, and preserve session state. Supplied evidence specifies reconnection APIs, deployment options, runtime limits, and metered pricing. Named customer cases support concrete adoption under the supplied provenance contract.

    Best for coding and background agents needing isolated, resumable Linux runtimesFree planFrom $100/month

    Task fit
    40/40
    Adoption
    10/20
    Evidence
    15/15
    Pricing
    15/15
    Market fit
    10/10
  2. 2

    Sandboxes

    by Blaxel

    Isolated microVMs execute agent workloads while preserving memory across standby. Mendral’s named case describes autonomous repository operations with proxy-injected credentials and auditable execution. Implementation details and inactivity behavior support strong product evidence; usage rates are explicit, but plan allowances are incomplete.

    Best for autonomous agents needing isolated execution with persistent state and rapid resumptionFree planFrom $0.0000115

    Task fit
    40/40
    Adoption
    10/20
    Evidence
    15/15
    Pricing
    11/15
    Market fit
    10/10
  3. 3

    Daytona

    The agent-facing SDK executes code and commands with streamed output, filesystem controls, and reconnectable background sessions. Explicit persistence limits support operational assessment. Named customer cases describe concrete sandbox use, supporting adoption evidence under the supplied contract.

    Best for agents running isolated code, parallel evaluations, and long-running stateful workloadsFree trialFrom $0.0504

    Task fit
    40/40
    Adoption
    10/20
    Evidence
    15/15
    Pricing
    11/15
    Market fit
    10/10
  4. 4

    Agent 37 Cloud API

    by Agent 37

    Persistent sandboxes for named agent harnesses and product-specific cases demonstrate provisioning, retained state and isolated coding workflows. Attributable customer cases support adoption 50, while missing technical operating constraints limit product evidence to 75.

    Best for agents needing persistent, individually provisioned runtimes for coding or always-on workFree trialFrom $4.76

    Task fit
    40/40
    Adoption
    10/20
    Evidence
    11/15
    Pricing
    11/15
    Market fit
    10/10
  5. 5

    Maritime

    Each agent receives an isolated Firecracker microVM with persistent disk; SDKs and MCP-accessible Linux desktops provide agent-facing access, with clear flat-plan entry prices.

    Best for persistent agent hosting under flat, per-agent plansFree planFrom $20/month

    Task fit
    39/40
    Adoption
    3/20
    Evidence
    13/15
    Pricing
    13/15
    Market fit
    10/10
  6. 6

    boat

    by Boat

    Persistent Linux VMs for agents support SSH, Docker, root/systemd, snapshots and forking, directly enabling code execution, parallel workloads and long-running workers.

    Best for agents needing full Linux control and persistent servicesFree trialFrom $20/month

    Task fit
    39/40
    Adoption
    3/20
    Evidence
    14/15
    Pricing
    9/15
    Market fit
    10/10
  7. 7

    Dedalus Machines

    by Dedalus Labs

    Full-Linux VMs with persistent storage and VM-level isolation are explicitly offered for running agents, including scale-to-zero and free sleep.

    Best for stateful agents needing persistent Linux machinesFree planCustom pricing

    Task fit
    39/40
    Adoption
    4/20
    Evidence
    12/15
    Pricing
    7/15
    Market fit
    10/10
  8. 8

    Acyclic

    by Acyclic Labs

    The described workflow splits long-running tasks among coding agents in isolated sandboxes and merges their outputs into patches or pull requests. Agents are first-class runtime users; adoption evidence is limited to company-stage proxies.

    Best for parallel coding-agent work that produces merged patches or pull requests

    Task fit
    40/40
    Adoption
    5/20
    Evidence
    11/15
    Pricing
    0/15
    Market fit
    10/10
  9. 9

    boxes.dev

    Explicitly gives each coding agent its own cloud Linux devbox, with API-triggered execution and disconnected parallel work. Concrete capabilities establish direct fit, but documented execution inputs and outputs are absent. The trial includes 20 compute hours.

    Best for coding agents needing dedicated cloud Linux machines and parallel execution while users are disconnectedFree planCustom pricing

    Task fit
    30/40
    Adoption
    5/20
    Evidence
    8/15
    Pricing
    11/15
    Market fit
    10/10
  10. 10

    cmux Cloud VMs

    by Manaflow

    Remote Linux sandboxes explicitly run AI coding agents, including parallel work and PR review, supporting the highest audience-fit anchor. Automatic idle suspension is concrete capability evidence, but detailed execution inputs and outputs are absent. Pro pricing is numeric; adoption evidence is limited to a company-following proxy.

    Best for AI coding agents needing remote Linux sandboxes and parallel cloud workFrom $480/year

    Task fit
    30/40
    Adoption
    5/20
    Evidence
    8/15
    Pricing
    11/15
    Market fit
    10/10

We reviewed 14 candidate products from 12 companies and published 10 positions. Totals include duplicate company entries and products removed during task, market and evidence review. Each company holds at most one position.