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Best MCP servers for code execution and sandboxes

We found 43 MCP servers for code execution and sandboxes in the catalog; these are the 15 that rank highest. The order comes from our rank, which weighs adoption, freshness, documentation and publisher identity. Nobody can pay for a place on this list. LLM Sandbox, Superserve and Tidewave Phoenix lead it. Krova and AgentSpace are published by the company that makes them. LLM Sandbox has the most GitHub stars here (1,137). 14 of the 15 had activity in the last 30 days. Remote servers need no local install; local ones run on your machine and can reach local files. Each entry lists why it made the list and links to its install page.

Updated Oct 26, 2026 · Built from catalog data; how we rank and grade

Top 15 of 43

  1. 1
    LLM Sandbox

    vndee

    Securely run LLM-generated code in isolated containers across 7 languages and 3 container backends.

    • Most GitHub stars here (1,137)
    • Most weekly downloads here (101.7K)
    • Active in the last 30 days

    ★ 1.1K↓ 101.7K/wkLast active Oct 21, 2026Local (stdio)Claude Code, Codex, VS Code, Cursor +2

  2. 2
    Superserve

    superserve-ai

    MCP server for Superserve sandboxes: create, exec, and manage Firecracker microVMs

    • Runs locally or as a remote server
    • Active in the last 30 days
    • Open source (Apache-2.0)

    ★ 467Last active Oct 23, 2026Local (stdio), Remote (HTTP)Claude Code, VS Code, Codex, Cursor +2

  3. 3
    Tidewave Phoenix

    tidewave-ai

    Runtime-level MCP server for Phoenix development: run code, read logs, query the DB, read docs.

    • Active in the last 30 days
    • Open source (Apache-2.0)

    ★ 858Last active Oct 23, 2026

  4. 4
    mcp-v8

    r33drichards

    Run JavaScript and TypeScript in sandboxed V8 isolates with policy-controlled host capabilities.

    • Active in the last 30 days
    • Open source (AGPL-3.0)

    ★ 62Last active Oct 20, 2026Local (stdio)Claude Code, Codex, VS Code, Cursor +2

  5. 5
    Vaara

    vaaraio

    Accountable autonomy proxy: gating, tamper-evident audit, time anchor for every action

    • Active in the last 30 days
    • Open source (AGPL-3.0)

    ★ 15↓ 1.4K/wkLast active Oct 21, 2026Local (stdio)Claude Code, Codex, VS Code, Cursor +2

  6. 6
    Ironclaw

    IronSecCo

    Sandboxed shell exec for MCP clients: run untrusted agent commands in a gVisor container.

    • Active in the last 30 days
    • Open source (AGPL-3.0)

    ★ 19Last active Oct 24, 2026Local (stdio)Claude Code, Codex, VS Code, Cursor +2

  7. 7
    Ephemora Cell MCP — WASM Sandbox

    MichaelS1011

    WASM sandbox for MCP tools.

    • Active in the last 30 days

    ★ 48↓ 55/wkLast active Oct 15, 2026Local (stdio)Claude Code, Codex, VS Code, Cursor +2

  8. 8
    Tidewave Rails

    tidewave-ai

    Runtime-level MCP server for Rails development: run code, read logs, query the DB, read docs.

    • Open source (Apache-2.0)

    ★ 476Last active Sep 9, 2026

  9. 9
    Sabline

    gowrishankar-infra

    Run code an AI wrote without handing it everything you can reach.

    • Active in the last 30 days
    • Open source (MIT)

    ★ 4↓ 132/wkLast active Oct 13, 2026Local (stdio)Claude Code, Codex, VS Code, Cursor +2

  10. 10
    Krova

    krova.cloudOfficial

    Provision and manage Krova Cloud Cubes — Firecracker microVMs with root access and no public IP.

    • Published by the vendor
    • Active in the last 30 days
    • Open source (MIT)

    ↓ 117/wkLast active Oct 7, 2026Local (stdio)Claude Code, Codex, VS Code, Cursor +2

  11. 11
    Tenki Sandbox MCP

    LuxorLabs

    Disposable microVM sandboxes for AI agents: run code, read/write files, git, preview URLs.

    • Active in the last 30 days
    • Open source (MIT)

    Last active Oct 21, 2026Local (stdio)Claude Code, Codex, VS Code, Cursor +2

  12. 12
    EQVPS — VPS and code sandboxes for AI agents

    Poiuyhje

    No-KYC VPS + per-second code sandboxes AI agents run over MCP — 75 tools, SDK, pay BTC/XMR/USDC/USDT

    • Remote server, no local install
    • Active in the last 30 days
    • Open source (MIT)

    Last active Oct 20, 2026Remote (HTTP)Claude Code, VS Code, Cursor, Windsurf

  13. 13
    AgentSpace

    agentspace.com.brOfficial

    Give your agent a persistent workspace: files, a code sandbox and a public URL to publish to.

    • Published by the vendor
    • Remote server, no local install
    • Active in the last 30 days

    Last active Oct 3, 2026Remote (HTTP)Claude Code, VS Code, Cursor, Windsurf

  14. 14
    Sandboxd Code Run

    saastemly.com

    Hosted one-shot code execution: send a snippet plus optional files, get stdout, stderr, exit...

    • Remote server, no local install
    • Active in the last 30 days

    Last active Oct 3, 2026Remote (HTTP)Claude Code, VS Code, Cursor, Windsurf

  15. 15
    Agentsandboxes

    pooriaarab

    A neutral index of cloud sandboxes for AI agents.

    • Remote server, no local install
    • Active in the last 30 days

    Last active Oct 21, 2026Remote (HTTP)Claude Code, VS Code, Cursor, Windsurf

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