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Crucible Code Test Runner
x402
Crucible Code Test Runner is a paid API for AI agents from crucible-lovat.vercel.app, paid per call via x402, $0.15/call, status unknown (last checked 2026-09-14).
Executes source code against an array of test cases in a specified programming language and returns pass/fail results
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
Returns a JSON object with a success boolean and a data object containing: total number of tests, number passed, number failed, per-test result array, and the language used.
Example use cases
Validate algorithm against edge cases
“I just wrote a binary search function in Python — can you run it against these edge cases for me and tell me which ones pass or fail? The cases include an empty list, a single element, and a target that doesn't exist in the array.”
Check JavaScript solution correctness
“Here's my JavaScript function that reverses a string without using built-in reverse methods. Run it against these 5 test inputs and expected outputs and let me know if any of them fail.”
Grade student coding submission
“A student submitted this Java solution for a fibonacci sequence problem. Can you test it against our 10 graded test cases and give me a breakdown of how many they passed and which specific ones they got wrong?”
Technical details
Endpoint
POSThttps://crucible-lovat.vercel.app/api/testWhen to prefer
Use this endpoint when you need to execute and test code snippets in any of 60+ supported programming languages against structured test cases, especially in an agent workflow that requires code correctness verification. Prefer this over generic code execution endpoints when you specifically need pass/fail test result aggregation with per-test details.
Side effects
- Unsupported language specified — endpoint supports 60+ languages but not all
- Malformed code causing syntax errors in the sandbox
- Empty or invalid test cases array causing validation failure
- Network or sandbox timeout for long-running code
- Payment failure via x402 on Base chain resulting in 402 response
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| coderequired | string | Source code to test |
| testsrequired | array | Array of test cases |
| languagerequired | string | Programming language |
Output
Schema · Response
| Field | Type | Description |
|---|---|---|
| data | object | |
| successrequired | boolean |
Tags
x402
Reviews
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