沙箱

什麼是沙箱

一台小型 Linux 機器：透過 API 或 MCP 建立，用幾秒或幾天，然後刪除。對外網路可用（pip install、npm install、git clone）。沒有對內埠，也沒有 SSH：指令和檔案都透過 API 傳遞。內建：帶 pip 的 Python 3.12、帶 npm 的 Node.js 22、bash、git 和 curl。

兩種模式

方案

按所選方案的 vCPU 和 RAM 付費：每 vCPU 小時 $0.040，每 GiB 小時 $0.013。即時價格無需權杖：GET /sandboxes/tariffs。

需要了解的限制

單一指令最長執行 55 秒；更長的工作以背景任務執行，由您輪詢結果。每次請求的檔案上限為 5 MB，更大的檔案（最大 2 GB）透過一次性的下載與上傳連結傳輸。一個帳戶最多可同時執行 20 個沙箱與 2 條指令。

環境變數

以 env 傳遞機密與設定。在 create 時設定的變數適用於沙箱中的每條指令；在 exec 或 run 中設定的變數只對該次呼叫生效，並覆寫沙箱的值。最多 64 個變數，每個值 32 KB，總計 64 KB。值以加密方式儲存，API 絕不會傳回，也不會寫入記錄檔：回應中只顯示名稱（env_keys）。

API=https://api.eqvps.com/api/v1/eqvps
AUTH="Authorization: Bearer $EQVPS_API_KEY"

# env for the whole sandbox (only the names come back, as env_keys)
SB=$(curl -s -X POST $API/sandboxes -H "$AUTH" -H "Content-Type: application/json" \
  -d '{"tariff":"small","env":{"DB_URL":"postgres://user:pass@db/app","MODE":"test"}}' | jq -r .id)

# env for one call, merged over the sandbox env
curl -s -X POST $API/sandboxes/$SB/exec -H "$AUTH" -H "Content-Type: application/json" \
  -d '{"command":"echo $MODE $RUN_ID","env":{"RUN_ID":"42"}}'

消費上限

預設情況下沙箱沒有消費上限。您可以在控制台或透過 PUT /sandboxes/budget 設定每日和每月上限。達到上限後，新沙箱會收到 429 budget_exceeded，執行中的臨時沙箱會被刪除，持久沙箱會暫停並保留磁碟。當您提高上限或進入新的一天或一個月（UTC）後，它們會恢復執行。

# daily cap $5, monthly cap $50 (null = no cap)
curl -s -X PUT $API/sandboxes/budget -H "$AUTH" -H "Content-Type: application/json" \
  -d '{"daily_usd":5,"monthly_usd":50}'

# spent today / this month and when the caps reset (UTC)
curl -s $API/sandboxes/budget -H "$AUTH"

快速開始：MCP（Claude Code、Cursor 及其他用戶端）

只需連線一次 MCP 伺服器，之後用日常語言吩咐代理即可。沙箱工具：create_sandbox、run_code、exec_command、get_task、kill_task、get_upload_url、get_download_url、list_sandboxes、get_sandbox、kill_sandbox、sandbox_pricing。

claude mcp add --transport http eqvps https://mcp.eqvps.com/mcp \
  --header "Authorization: Bearer $EQVPS_API_KEY"

建立一個小沙箱，用 Python 執行 print(2 + 2)，把輸出給我看，然後刪除這個沙箱。

快速開始：從 Python 和 Node.js 呼叫 REST

不需要額外安裝套件。把權杖放進環境變數 EQVPS_API_KEY（取得方式請見「連接您的帳戶」）。

# first_sandbox.py — Python 3.8+, standard library only
import json, os, urllib.request

API = "https://api.eqvps.com/api/v1/eqvps"
KEY = os.environ["EQVPS_API_KEY"]

def call(method, path, body=None):
    req = urllib.request.Request(API + path, method=method,
        data=json.dumps(body).encode() if body is not None else None,
        headers={"Authorization": "Bearer " + KEY,
                 "Content-Type": "application/json", "Accept": "application/json"})
    with urllib.request.urlopen(req, timeout=90) as r:   # HTTPError on 401/402/…
        return json.loads(r.read() or b"{}")

sb = call("POST", "/sandboxes", {"tariff": "small"})
try:
    r = call("POST", f"/sandboxes/{sb['id']}/run",
             {"language": "python", "code": "print(2 + 2)"})
    print(r["exit_code"], r["stdout"])                    # 0 4
finally:
    call("DELETE", f"/sandboxes/{sb['id']}")

// first_sandbox.mjs — Node.js 18+ (built-in fetch), run: node first_sandbox.mjs
const API = "https://api.eqvps.com/api/v1/eqvps";
const KEY = process.env.EQVPS_API_KEY;

async function call(method, path, body) {
  const r = await fetch(API + path, {
    method,
    headers: { Authorization: `Bearer ${KEY}`, "Content-Type": "application/json", Accept: "application/json" },
    body: body ? JSON.stringify(body) : undefined,
  });
  const data = await r.json();
  if (!r.ok) throw new Error(`${r.status} ${data.error ?? ""} ${data.message ?? ""}`);
  return data;
}

const sb = await call("POST", "/sandboxes", { tariff: "small" });
try {
  const r = await call("POST", `/sandboxes/${sb.id}/run`, { language: "node", code: "console.log(2 + 2)" });
  console.log(r.exit_code, r.stdout); // 0 4
} finally {
  await call("DELETE", `/sandboxes/${sb.id}`);
}

Python 與 TypeScript SDK

偏好使用函式庫？Python 與 TypeScript 套件封裝了相同的 REST 呼叫，會自動重試 429 與 503，並在區塊結束時一定刪除沙箱。安裝與使用：

# pip install -U eqvps       https://pypi.org/project/eqvps/  (0.2.0+ for env)
# "eqvps sandbox create" = Sandbox.create() here · create_sandbox in MCP · POST /sandboxes in REST (no CLI)
from eqvps import Sandbox

# EQVPS_API_KEY from the environment; env = secrets for your code, stored encrypted
with Sandbox.create(tariff="small", env={"DB_URL": "postgres://user:pass@db/app"}) as sb:
    r = sb.run("print(2 + 2)")
    print(r.stdout, r.exit_code)             # "4\n" 0
    sb.upload("/root/data.csv", "a,b\n1,2\n")
    print(sb.exec("wc -l /root/data.csv").stdout)
    print(sb.exec("echo $RUN_ID", env={"RUN_ID": "42"}).stdout)   # env for one call
# the sandbox is deleted when the block exits, also on errors

// npm i @eqvps/sdk@latest   https://www.npmjs.com/package/@eqvps/sdk  (0.2.0+ for env)
import { Sandbox } from "@eqvps/sdk";

// EQVPS_API_KEY from the environment; env = secrets for your code, stored encrypted
await Sandbox.with({ tariff: "small", env: { DB_URL: "postgres://user:pass@db/app" } }, async (sb) => {
  const r = await sb.run("print(2 + 2)");
  console.log(r.stdout, r.exit_code);                    // "4\n" 0
  console.log((await sb.exec("echo $RUN_ID", { env: { RUN_ID: "42" } })).stdout); // env for one call
});                                                       // deleted afterwards, also on errors

連接您的帳戶：權杖、設定、第一個沙箱、餘額 →