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Crucible Multi-Language Code Execution
x402
Crucible Multi-Language Code Execution is a paid API for AI agents from crucible-lovat.vercel.app, paid per call via x402, $0.15/call, status unknown (last checked 2026-09-15).
Executes code in 60+ programming languages and returns the result, paid per request via x402 on Base chain
Price / call$0.15
Success—
StatusUnknown
How this service works
7 endpoints for code execution in 60+ languages. Pay per request via x402 on Base chain.
Output
A JSON object with a boolean 'success' field and a 'data' object containing execution results such as stdout, stderr, exit code, and runtime information from the sandboxed execution environment.
Example use cases
Test snippet in multiple languages
“I have this sorting algorithm I want to test in both Python and Go to compare the outputs. Can you run it in both languages and show me the results? Here's the logic: given the list [5, 2, 8, 1, 9], sort it and print each element on a new line.”
Evaluate math expression with code
“Can you calculate the first 20 Fibonacci numbers for me by running a quick script? I don't have a local environment set up, so just execute it in whatever language is easiest and show me the output.”
Run shell script and capture output
“I need to know what this shell script outputs — can you run it in a sandbox and show me the stdout? Here it is: `echo 'Hello from shell'; for i in 1 2 3 4 5; do echo "Number: $i"; done`”
Technical details
Endpoint
POSThttps://crucible-lovat.vercel.app/api/multiWhen to prefer
Choose this endpoint when an AI agent needs to actually execute arbitrary code across a wide variety of programming languages without managing infrastructure. Ideal for sandboxed code testing, dynamic computation, script evaluation, or any scenario where code must be run and results returned in real-time. Preferred over local execution when the agent has no runtime environment, and over single-language execution services when polyglot support across 60+ languages is needed.
Side effects
- Unsupported language specified — returns error indicating language not available among 60+ supported
- Invalid or malformed files array — returns validation error
- Code times out during execution — returns timeout error
- Runtime error in user code — returns success:false with stderr details
- Payment failure via x402 — returns 402 Payment Required before execution
- Syntax error in submitted code — returns compilation/parse error in response
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| filesrequired | array | Array of code files |
| stdin | string | Standard input (optional) |
| version | string | Language version (optional) |
| languagerequired | string | Programming language |
Output
Schema · Response
| Field | Type | Description |
|---|---|---|
| data | object | |
| successrequired | boolean |
Tags
x402
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