{"uid":"cap__xFb3y863b1NVGK_TxQ5B","slug":"pennyrail-json-to-query-string-converter-5aee85ab","name":"PennyRail JSON-to-Query-String Converter","description":"Machine-readable settlement service","url":"https://pennyrail.vercel.app/api/p/nano/url.json-to-query--json-to-query-string","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_YSg0FZ-cuKvzrrsafK7zr","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 a JSON object into a URL query string format","exampleAgentPrompt":"Convert this JSON object into a URL query string for me: {\"search\": \"coffee\", \"limit\": 10, \"sort\": \"asc\"}.","exampleUseCases":[{"title":"Encode API call parameters as query string","prompt":"I have a JSON object with my API parameters — {\"city\": \"Austin\", \"radius\": 50, \"type\": \"restaurant\"} — can you turn that into a query string I can append to a URL?"},{"title":"Serialize form data for GET request","prompt":"I need to convert this filter object into a query string so I can build a GET request URL: {\"category\": \"electronics\", \"minPrice\": 100, \"maxPrice\": 500, \"inStock\": true}."},{"title":"Transform webhook payload to query params","prompt":"Take this JSON payload {\"userId\": \"abc123\", \"event\": \"signup\", \"source\": \"organic\"} and serialize it into URL query string format so I can append it to a redirect URL."}],"resultDescription":"Returns a JSON object containing the serialized query string representation of the input JSON object, with key-value pairs encoded in standard URL query string format (e.g., key1=value1&key2=value2).","failureModes":["Missing required 'input' field returns a validation error","Non-object value for 'input' may cause serialization failure","Deeply nested objects may not serialize as expected depending on encoding strategy","Payment failure via x402 protocol prevents execution","Empty input object may return an empty string or minimal response"],"whenToPreferThis":"Use this endpoint when you need a lightweight, pay-per-call conversion of a JSON object to a URL query string without standing up your own serialization logic. Useful in agentic workflows where you need to dynamically construct GET request URLs or redirect URIs from structured JSON data, particularly within pipelines that already use x402 micropayment infrastructure.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-14T06:46:40.217Z","isFirstParty":false}