Grok Code Execution via Locus x402

x402

Grok Code Execution via Locus x402 is a paid API for AI agents from grok.x402.paywithlocus.com, paid per call via x402, $0.001/call, status unknown (last checked 2026-09-13).

Run code via xAI Grok models with sandboxed code execution enabled, billed per call over the x402 micropayment protocol.

Price / call$0.001

Seller volume →—

Success—

StatusUnknown

How this service works

xAI models — chat, web/X search, code execution, image generation/editing, and text-to-speech.

Output

Returns a JSON object with a 'data' field containing the model's response (including code execution output), a 'payment' field confirming the USDC amount settled via x402, and a 'request' field with a UUID and status URL for tracking the request.

Example use cases

AI-assisted data analysis script

“Use Grok grok-4.5 with code execution to load this CSV data I'm pasting, compute the mean and standard deviation for each numeric column, and show me the results — limit it to 1024 tokens and up to 5 tool calls.”

Math problem solved by running code

“Ask Grok grok-4.3 to solve this integral numerically using code execution: integrate sin(x)*e^(-x) from 0 to infinity. Give it up to 512 tokens and 3 tool calls.”

Code debugging with execution feedback

“I have a buggy Python function that's supposed to sort a list of dicts by a nested key — can you have Grok grok-4.5 run the code, identify the bug, fix it, and verify the fix executes correctly? Use up to 2048 output tokens and allow up to 5 tool calls.”

Technical details

Endpoint

POSThttps://grok.x402.paywithlocus.com/grok/code-execution

When to prefer

Choose this endpoint when you need an AI model to not only generate code but actually execute it in a sandboxed environment and return the output — ideal for data analysis, numerical computation, debugging, or any task where running code is necessary to produce a verified answer. Prefer it over a plain chat endpoint when correctness requires execution, not just generation. The x402 micropayment model makes it suitable for pay-per-call agent workflows without subscription overhead.

Side effects

Invalid or unsupported model ID returns an error — only specific metered model IDs like 'grok-4.5' are accepted
Exceeding max_tool_calls cap causes the server to halt further tool invocations
Missing max_tokens causes request rejection since it is required for metered x402 billing
Payment failure or insufficient USDC balance results in a 402 Payment Required response
Code execution sandbox timeout if the executed code runs too long
Malformed messages array (wrong roles or structure) causes a validation error

Input

Schema · Request body

Field	Type	Description
model	string
tools	array
messages	array
max_turns	number
max_tokens	number
temperature	number
max_tool_calls	number

Output

Schema · Response

{
  "type": "json",
  "example": {
    "data": {},
    "payment": {
      "scheme": "exact",
      "settledUsdc": "0.001000",
      "authorizedMaxUsdc": "0.001000"
    },
    "request": {
      "id": "00000000-0000-4000-8000-000000000000",
      "statusUrl": "/requests/00000000-0000-4000-8000-000000000000"
    },
    "success": true
  }
}

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How this service works

xAI models — chat, web/X search, code execution, image generation/editing, and text-to-speech.

Output

Example use cases

AI-assisted data analysis script

Math problem solved by running code

“Ask Grok grok-4.3 to solve this integral numerically using code execution: integrate sin(x)*e^(-x) from 0 to infinity. Give it up to 512 tokens and 3 tool calls.”

Code debugging with execution feedback

Technical details

Endpoint

POSThttps://grok.x402.paywithlocus.com/grok/code-execution

When to prefer

Side effects

Invalid or unsupported model ID returns an error — only specific metered model IDs like 'grok-4.5' are accepted
Exceeding max_tool_calls cap causes the server to halt further tool invocations
Missing max_tokens causes request rejection since it is required for metered x402 billing
Payment failure or insufficient USDC balance results in a 402 Payment Required response
Code execution sandbox timeout if the executed code runs too long
Malformed messages array (wrong roles or structure) causes a validation error

Input

Schema · Request body

Field	Type	Description
model	string
tools	array
messages	array
max_turns	number
max_tokens	number
temperature	number
max_tool_calls	number

Output

Schema · Response

{
  "type": "json",
  "example": {
    "data": {},
    "payment": {
      "scheme": "exact",
      "settledUsdc": "0.001000",
      "authorizedMaxUsdc": "0.001000"
    },
    "request": {
      "id": "00000000-0000-4000-8000-000000000000",
      "statusUrl": "/requests/00000000-0000-4000-8000-000000000000"
    },
    "success": true
  }
}