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WhatChuNeed Code Test Runner
x402
WhatChuNeed Code Test Runner is a paid API for AI agents from whatchuneed.vercel.app, paid per call via x402, $0.15/call, status unknown (last checked 2026-09-15).
Executes code against a set of test cases and returns pass/fail results with actual vs expected output for each test
Price / call$0.15
Success—
StatusUnknown
How this service works
320+ pay-per-call API endpoints across accommodation, LLM, code execution, crypto, medical, finance, and more. One API, one payment. Powered by x402 protocol.
Output
Returns a JSON object with the total number of passed and failed tests, plus a detailed results array where each entry shows the input, expected output, actual output, and whether the test passed or failed.
Example use cases
Validate coding challenge solution
“I wrote a JavaScript solution for a binary search problem — can you test it against these 5 test cases: input [1,3,5,7] target 3 expects index 1, input [2,4,6] target 5 expects -1, and so on — let me know which ones pass and which fail.”
Debug failing unit tests
“My Python function is supposed to reverse a string but I think it's broken — run it against inputs 'hello' expecting 'olleh', 'abc' expecting 'cba', and '' expecting '' so I can see what it's actually outputting.”
Auto-grade student code submission
“Check this student's Python submission that implements a factorial function — test it with input 0 expecting 1, input 5 expecting 120, and input 10 expecting 3628800, and give me a pass/fail breakdown.”
Technical details
Endpoint
POSThttps://whatchuneed.vercel.app/api/code/testWhen to prefer
Use this endpoint when you need to programmatically execute a code snippet against multiple test cases and get structured pass/fail feedback. Ideal for coding challenge grading, automated validation of AI-generated code, or debugging a function against known inputs and expected outputs. Prefer this over a generic code execution endpoint when you specifically need test comparison semantics with per-case pass/fail results.
Side effects
- Invalid or unsupported programming language causes rejection
- Malformed code syntax may cause execution errors or timeouts
- Empty test array returns no results
- Payment failure via x402 results in 402 response before execution
- Code with infinite loops or excessive resource usage may timeout
- Mismatched input/expected types in test cases may cause unexpected failures
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| coderequired | string | |
| testsrequired | array | |
| languagerequired | string |
Output
Schema · Response
| Field | Type | Description |
|---|---|---|
| failed | integer | |
| passed | integer | |
| results | array |
Tags
x402
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