{"uid":"cap_tJ36gH827LPMGfcPreas3","slug":"pennyrail-canonical-json-sorter-823df9d9","name":"PennyRail Canonical JSON Sorter","description":"Machine-readable settlement service","url":"https://pennyrail.vercel.app/api/p/nano/json.sort-keys--canonical-json","method":"POST","headers":{},"bodySchema":{"type":"object","required":["input"],"properties":{"input":{"type":"object"}}},"responseSchema":{"type":"object","additionalProperties":true},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.001","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":"$0.001/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.001","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.001","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm__HqXXEyKcgN-33WvBz5hd","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.001","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Converts an arbitrary JSON object into canonical form with deterministically sorted keys","exampleAgentPrompt":"Take this JSON object and return a canonical version with all keys sorted alphabetically: {\"zebra\": 1, \"apple\": {\"mango\": 2, \"banana\": 3}, \"cherry\": true}.","exampleUseCases":[{"title":"Stable hash input for API payload","prompt":"I need to hash this API request body for signature verification — can you first canonicalize the JSON so the key order is always the same before I hash it? Here's the object: {\"userId\": \"abc123\", \"amount\": 50, \"currency\": \"USD\"}."},{"title":"Deterministic JSON for config diffing","prompt":"I have two config files that might be identical but the keys are in different orders — can you canonicalize both JSONs with sorted keys so I can do a reliable diff?"},{"title":"Normalize JSON before storing in cache","prompt":"Before I cache this API response, I want to make sure the JSON key order is always consistent so cache keys are stable — can you sort all the keys canonically? Here's the payload: {\"status\": \"ok\", \"data\": {\"id\": 99, \"name\": \"test\"}}."}],"resultDescription":"A JSON object identical in content to the input but with all keys sorted alphabetically in a deterministic, canonical order, suitable for hashing, signing, diffing, or caching.","failureModes":["Input is not a valid JSON object — returns an error response","Deeply nested structures with circular references may cause failures","Missing required 'input' field returns a validation error","Network timeout on the paid endpoint if the service is unavailable","Payment failure (x402) if USDC balance is insufficient"],"whenToPreferThis":"Choose this endpoint when you need a deterministic, canonically sorted JSON output for use cases like cryptographic signing, payload hashing, cache key generation, or structural diffing. It is a paid micro-service ($0.001 USDC via x402) so prefer it in automated pipelines where consistent JSON serialization is a hard requirement and a free local sort is unavailable or undesired.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-14T07:21:56.457Z","isFirstParty":false}