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Crucible Code Explanation
x402
Crucible Code Explanation is a paid API for AI agents from crucible-lovat.vercel.app, paid per call via x402, $0.2/call, status unknown (last checked 2026-09-15).
Explains code output or execution results in natural language for a given programming language
Price / call$0.2
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 success flag and, on success, a data object containing the AI model used, the programming language, and a natural-language explanation of what the code did and why it produced the given output.
Example use cases
Debug unexpected JavaScript error output
“My JavaScript function threw this error when it ran: `TypeError: Cannot read properties of undefined (reading 'map')` — can you explain what went wrong and why it produced that error? Here's the code: `const result = data.items.map(x => x.id);`”
Explain Rust program's surprising result
“I ran this Rust snippet and got `255` instead of `-1` like I expected — here's the code: `let x: u8 = 255u8.wrapping_add(1); println!("{}", x);` — can you explain what actually happened at runtime and why it produced that output?”
Understand Python stack trace meaning
“My Python script crashed with this stack trace and I'm not sure what it means: `RecursionError: maximum recursion depth exceeded` — the code is a recursive Fibonacci function. Can you explain in plain English what happened when it ran and why it failed?”
Technical details
Endpoint
POSThttps://crucible-lovat.vercel.app/api/explainWhen to prefer
Use this endpoint when you need an AI-generated natural language explanation of what a piece of code did, specifically tied to its actual runtime output. Ideal for debugging assistants, coding tutors, or developer tools where the user wants to understand why code behaved a certain way — not just what the code says statically. Prefer this over static code analysis endpoints when the execution output is available and context-specific understanding is needed.
Side effects
- Missing required fields (code, output, or language) returns an error
- Unsupported language may result in a failed or low-quality explanation
- Payment failure on Base chain returns a 402 response before processing
- Very long code or output may be truncated or rejected
- Ambiguous or incomplete output string may yield a vague explanation
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| coderequired | string | Source code |
| outputrequired | string | Execution output to explain |
| languagerequired | string | Programming language |
Output
Schema · Response
| Field | Type | Description |
|---|---|---|
| data | object | |
| successrequired | boolean |
Tags
x402
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