Compare/Run code in a safe sandbox

Run code in a safe sandbox

Run a Python script in a fresh, isolated machine and get its output and any files it creates (charts, cleaned spreadsheets). 1 live · 1 in the catalog.

CheapestRun Python in a safe sandbox and get the files back (Smol Machines)$0.020 per call

Provider	Price	Status
Run Python in a safe sandbox and get the files back (Smol Machines)Smol Machines	$0.020 / call	Live

Success rate and speed will show once a provider has 5 real calls in the last 30 days.

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Pick up to 6 live providers. Each one is charged at its own price; failures are free.

Questions

Which Run code in a safe sandbox API is cheapest?

The cheapest is Smol Machines at $0.020 per call. Failed calls are not charged.

How do I call a Run code in a safe sandbox API from an AI agent?

Connect your agent once: paste the message from superpowers.tools/docs into Claude, ChatGPT or Codex. Then ask in your own words, and your agent picks this provider and runs it. You pay only when a call works, and new accounts get $5 free. Developers can call POST /v1/run with "tool": "smol.run-python" or use the MCP server.

For developersAPI call and the shared input and output format

Call it with one API key: POST /v1/run with "tool": "smol.run-python", or through the MCP server. Every provider takes the same input and returns the same output, and failed calls are not charged.

Input

{
  "type": "object",
  "additionalProperties": false,
  "required": [
    "code"
  ],
  "properties": {
    "code": {
      "type": "string",
      "minLength": 1,
      "maxLength": 100000,
      "description": "Python 3.12 code to run. Input files are in /work; write files you want back to /out"
    },
    "packages": {
      "type": "array",
      "maxItems": 12,
      "items": {
        "type": "string",
        "pattern": "^[A-Za-z0-9][A-Za-z0-9._-]{0,60}(\\[[A-Za-z0-9,_-]+\\])?([<>=!~]=?[0-9A-Za-z.*]+)?$"
      },
      "description": "pip packages to install first, e.g. [\"pandas\",\"matplotlib\"] (turns on internet access for the run)"
    },
    "files": {
      "type": "array",
      "maxItems": 5,
      "items": {
        "type": "object",
        "additionalProperties": false,
        "required": [
          "url"
        ],
        "properties": {
          "url": {
            "type": "string",
            "format": "uri"
          },
          "name": {
            "type": "string",
            "pattern": "^[A-Za-z0-9][A-Za-z0-9._-]{0,100}$"
          }
        }
      },
      "description": "Public files copied to /work/<name> before the code runs (up to 5, 10 MB each)"
    },
    "internet": {
      "type": "boolean",
      "default": false,
      "description": "Let the code reach the internet (always on when packages are given)"
    },
    "timeout_seconds": {
      "type": "integer",
      "minimum": 5,
      "maximum": 60,
      "default": 45
    }
  }
}

Normalized output

{
  "exit_code": 0,
  "stdout": "",
  "stderr": "",
  "files": [
    {
      "name": "",
      "url": "",
      "bytes": 0
    }
  ],
  "duration_ms": 0
}