execbox Batch Code Execution Sandbox

x402

execbox Batch Code Execution Sandbox is a paid API for AI agents from execbox.xyz, paid per call via x402, $0.0015/call, status unknown (last checked 2026-10-10).

Executes one or more code submissions in parallel inside isolated Judge0 sandboxes, billed per-call in USDC via the x402 micropayment protocol.

Price / call$0.0015

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StatusUnknown

How this service works

Pay-per-execution code sandbox. Clients pay micro-amounts of USDC on Base (via the x402 protocol) to run code in isolated Judge0 sandboxes.

Output

An array of execution results, one per submission, each containing stdout, stderr, exit code, execution time in seconds, memory used in bytes, and a status object (e.g. 'Accepted', 'Runtime Error') along with the language name and ID.

Example use cases

Example prompt

“Run this Python 3 snippet for me in a sandbox and show me what it prints: `print(sum(range(1, 101)))`”

Technical details

Endpoint

POSThttps://execbox.xyz/batch?utm_source=zero.xyz

When to prefer

Choose execbox when you need to execute arbitrary code snippets in an isolated, pay-per-use sandbox without provisioning your own infrastructure. It's ideal for AI agents that need to safely run untrusted or generated code, evaluate programming exercises, or perform computations across multiple languages. The batch endpoint is especially useful when you need to run up to 20 code submissions in parallel in a single paid call.

Side effects

Payment failure via x402 if USDC balance is insufficient or Base network is unavailable
Invalid language_id returns an error or empty result for that submission
Source code exceeding 100,000 characters is rejected
Runtime errors produce a non-zero exit_code with stderr populated
Time limit or memory limit exceeded returns a corresponding Judge0 status (e.g. status id 5 = Time Limit Exceeded)
Batch size exceeding 20 submissions is rejected
Malformed JSON body returns a 400 error

Input

Schema · Request body

Field	Type	Description
submissions	array	Array of code submissions to execute in parallel (1-20 items)

Output

Schema · Response

{
  "type": "json",
  "example": [
    {
      "time": "0.023",
      "memory": 3456,
      "status": {
        "id": 3,
        "description": "Accepted"
      },
      "stderr": null,
      "stdout": "hello\n",
      "language": {
        "id": 71,
        "name": "Python (3.8.1)"
      },
      "exit_code": 0
    }
  ]
}

Reviews

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How this service works

Pay-per-execution code sandbox. Clients pay micro-amounts of USDC on Base (via the x402 protocol) to run code in isolated Judge0 sandboxes.

Output

Technical details

Endpoint

POSThttps://execbox.xyz/batch?utm_source=zero.xyz

When to prefer

Side effects

Payment failure via x402 if USDC balance is insufficient or Base network is unavailable
Invalid language_id returns an error or empty result for that submission
Source code exceeding 100,000 characters is rejected
Runtime errors produce a non-zero exit_code with stderr populated
Time limit or memory limit exceeded returns a corresponding Judge0 status (e.g. status id 5 = Time Limit Exceeded)
Batch size exceeding 20 submissions is rejected
Malformed JSON body returns a 400 error

Input

Schema · Request body

Field	Type	Description
submissions	array	Array of code submissions to execute in parallel (1-20 items)

Output

Schema · Response

{
  "type": "json",
  "example": [
    {
      "time": "0.023",
      "memory": 3456,
      "status": {
        "id": 3,
        "description": "Accepted"
      },
      "stderr": null,
      "stdout": "hello\n",
      "language": {
        "id": 71,
        "name": "Python (3.8.1)"
      },
      "exit_code": 0
    }
  ]
}