{"uid":"cap_ZyocgxV1DP3EqGfkG1hLK","slug":"pennyrail-json-object-flattener-74dcbb8b","name":"PennyRail JSON Object Flattener","description":"Machine-readable settlement service","url":"https://pennyrail.vercel.app/api/p/nano/json.flatten--flatten-object","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_UCSBzKLo5X7cDGQGnhurv","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":"Flattens a nested JSON object into a single-level key-value structure using dot-notation keys","exampleAgentPrompt":"Take this nested JSON object — {\"user\":{\"name\":\"Alice\",\"address\":{\"city\":\"Denver\",\"zip\":\"80201\"}},\"active\":true} — and flatten it into a single-level object with dot-notation keys.","exampleUseCases":[{"title":"Flatten config before environment injection","prompt":"I have a deeply nested app config object like {\"db\":{\"host\":\"localhost\",\"port\":5432},\"cache\":{\"ttl\":300}} — can you flatten it into dot-notation keys so I can inject each one as an environment variable?"},{"title":"Normalize API response for spreadsheet export","prompt":"I got this nested JSON back from an API — {\"order\":{\"id\":\"123\",\"customer\":{\"name\":\"Bob\",\"email\":\"bob@example.com\"},\"total\":49.99}} — can you flatten it into a single-level object so I can map each field to a spreadsheet column?"},{"title":"Prepare nested form data for database row","prompt":"Before I insert this user profile object into my flat database table, can you flatten it? It looks like {\"profile\":{\"firstName\":\"Jane\",\"preferences\":{\"theme\":\"dark\",\"language\":\"en\"}},\"createdAt\":\"2024-01-01\"}."}],"resultDescription":"A flat JSON object where all nested keys have been collapsed into top-level dot-notation string keys (e.g. 'user.address.city') mapped to their corresponding primitive values, with no remaining nested objects.","failureModes":["Missing or empty 'input' field returns a validation error","Non-object value for 'input' (e.g. array or string) may return an error or unexpected output","Payment failure via x402 protocol results in 402 status and no transformation","Circular references in input object may cause processing errors","Extremely large or deeply nested objects may time out or exceed payload limits"],"whenToPreferThis":"Choose this endpoint when you need a quick, pay-per-call flattening of a single nested JSON object without managing your own transformation logic. It is ideal for lightweight agent workflows that occasionally need to normalize JSON structure before storage, export, or environment injection, and where spinning up a local utility function is impractical. Prefer alternatives if you need recursive array unrolling, custom delimiter support, or batch processing of many objects at once.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-14T06:53:04.282Z","isFirstParty":false}