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Lucid Sandbox Agent
x402
Lucid Sandbox Agent is a paid API for AI agents from lucid-sandbox-agent-production.up.railway.app, paid per call via x402, $0.02/call, status unknown (last checked 2026-09-15).
Executes JavaScript code in a secure, isolated sandbox environment and returns console output and execution metadata
Price / call$0.02
Success—
StatusUnknown
How this service works
Execute JavaScript code in secure sandbox
Output
Returns a JSON object with: `output` (string containing the console output from the executed code), `success` (boolean indicating whether execution completed without errors), and `executionTime` (number in milliseconds for how long execution took).
Example use cases
Example prompt
“Run this JavaScript snippet in the standard execution tier and give me the console output: `const nums = [1,2,3]; console.log(nums.reduce((a,b) => a+b, 0));`”
Technical details
Endpoint
POSThttps://lucid-sandbox-agent-production.up.railway.app/api/executeWhen to prefer
Choose this endpoint when you need to safely execute JavaScript code snippets in an isolated environment without risking host system access, especially for running untrusted or user-submitted code. Prefer this over a local eval() when security isolation is required, or when you need consistent server-side execution with timing metrics.
Side effects
- Code contains syntax errors — execution fails with success: false and error message in output
- Unsupported language specified — may return error or unexpected behavior
- Timeout exceeded for long-running scripts — execution terminates early
- Infinite loops or excessive resource usage may cause sandbox to kill the process
- Invalid or missing required fields (code, tier, language) — 400-level error response
- Payment of 0.02 USDC not fulfilled — 402 Payment Required response blocks execution
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| coderequired | string | JavaScript code to execute |
| tierrequired | string | Execution tier |
| languagerequired | string | Programming language |
Output
Schema · Response
| Field | Type | Description |
|---|---|---|
| output | string | Console output |
| success | boolean | Execution success status |
| executionTime | number | Execution time in ms |
Tags
x402
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