{"uid":"cap_Wac_z0mQzjzWvaPAnTrFq","slug":"x402-tools-hub-code-explainer-b56be3a2","name":"x402-tools-hub Code Explainer","description":"Agent Toolkit + AI Gateway + Alpha Scraper — 13 paid endpoints for AI agents.","url":"https://tools-hub-v4-xi.vercel.app/api/code-explain","method":"POST","headers":{},"bodySchema":null,"responseSchema":null,"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.08","displayCostAsset":"USDC","priceDynamic":false,"priceHint":null,"priceStatus":"priced","priceSource":"probe","requiresHandshake":false,"reviewCount":0,"rating":{"score":"0.00","successRate":"0.00","reviews":0,"stars":null,"state":"unrated"},"availabilityStatus":"unknown","priceObserved":null,"sessionDeposit":null,"pricing":{"kind":"static","summary":"$0.08/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.08","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.08","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_lMDCeQaGJB8yuizRxTXvg","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.08","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Accepts a code snippet and returns a plain-language explanation of what the code does","exampleAgentPrompt":"Can you explain what this Python function does in plain English? Here's the code: `def factorial(n): return 1 if n <= 1 else n * factorial(n-1)` — give me a clear, beginner-friendly breakdown.","exampleUseCases":[{"title":"Onboarding junior developers to codebase","prompt":"I've got a new developer joining and they're confused by this authentication middleware — can you explain what this code does step by step so I can share it with them? Here it is: `function authMiddleware(req, res, next) { const token = req.headers['authorization']; if (!token) return res.status(401).send('Unauthorized'); jwt.verify(token, SECRET, (err) => { if (err) return res.status(403).send('Forbidden'); next(); }); }`"},{"title":"Debugging unfamiliar legacy code","prompt":"I inherited this old SQL stored procedure and I have no idea what it's doing — can you explain it in plain English so I know if it's safe to modify? `SELECT u.id, COUNT(o.id) as order_count FROM users u LEFT JOIN orders o ON u.id = o.user_id WHERE o.created_at > NOW() - INTERVAL 30 DAY GROUP BY u.id HAVING order_count > 5;`"},{"title":"Learning a new programming language","prompt":"I'm learning Rust and I found this snippet online but I don't understand the ownership and borrowing going on — can you explain what this code does and why it's written this way? `fn main() { let s1 = String::from(\"hello\"); let s2 = &s1; println!(\"{} {}\", s1, s2); }`"}],"resultDescription":"A plain-language explanation of the submitted code snippet, describing what the code does, how it works, and the logic behind its key components. The response is intended to be human-readable and accessible regardless of the reader's technical level.","failureModes":["Empty or missing code input returns an error","Extremely large code snippets may be truncated or rejected","Unsupported or obfuscated code may produce inaccurate explanations","Payment failure (non-200 402 response) if USDC payment is not correctly attached","Rate limiting or server errors from the Vercel-hosted backend"],"whenToPreferThis":"Choose this endpoint when an AI agent needs to produce a human-readable explanation of a code snippet on behalf of a user — particularly useful in developer tool pipelines, documentation generators, or learning assistants. Prefer this over general LLM calls when you need a metered, pay-per-use code explanation service integrated into an x402 payment workflow.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-16T00:33:22.765Z","isFirstParty":false}