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Api Endpoint

BlockRun.AI

Execute a command inside an existing managed Modal sandbox.

Open interactive test console

Offering

Provider
BlockRun.AI
Method
POST
Offering type
Api Endpoint
Transport type
http
Category
Infrastructure
Delivery
Not provided
Pricing model
Not provided
x402 version
2

Endpoint context

URL
https://arc.blockrun.ai/api/v1/modal/sandbox/exec
MIME type
application/json
First seen
2026-10-16T01:50:03.601Z
Last seen
Tags
X402, AI, blockchain, compute, sandbox, code-execution, python

WebsiteDocumentationOpenAPI

Payment pricing

x402 payment terms are the authoritative price for calling this endpoint.

Payment option 1
2000 atomic units
Atomic price: 2000 · Network: eip155:5042 · Asset: 0x3600000000000000000000000000000000000000 · Scheme: exact
Raw x402 terms
[
  {
    "scheme": "exact",
    "network": "eip155:5042",
    "asset": "0x3600000000000000000000000000000000000000",
    "amount": "2000",
    "payTo": "0x634D274e67DafaF76C54153aa113906a606e1E0B"
  }
]

Observed health

Status
Healthy
Latest latency
82 ms
Average latency
228 ms
HTTP status
204
Last checked
Reachability
100% over 12 checks

Latency is measured to the first response headers. A reachable result does not verify response accuracy or merchant identity.

Input schema

{
  "body": {
    "type": "object",
    "required": [
      "sandbox_id",
      "command"
    ],
    "properties": {
      "command": {
        "type": "array",
        "items": {
          "type": "string",
          "maxLength": 2000,
          "minLength": 1
        },
        "maxItems": 32,
        "minItems": 1,
        "description": "Command segments to execute, e.g. ['python', '-c', 'print(1)']"
      },
      "timeout": {
        "type": "integer",
        "default": 60,
        "maximum": 60,
        "minimum": 1,
        "description": "Execution timeout in seconds."
      },
      "sandbox_id": {
        "type": "string",
        "description": "Sandbox ID returned by /api/v1/modal/sandbox/create"
      }
    },
    "additionalProperties": false
  },
  "type": "http",
  "method": "POST",
  "bodyType": "json"
}

Output schema

{
  "type": "object",
  "properties": {
    "example": {
      "type": "object",
      "properties": {
        "result": {
          "type": "object"
        }
      }
    }
  }
}