{"uid":"cap_3QXLm_JeV3R5X2U6MBEJX","slug":"pennyrail-json-path-get-36b94ba9","name":"PennyRail JSON Path GET","description":"Machine-readable settlement service","url":"https://pennyrail.vercel.app/api/p/nano/json.get--json-path-get","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":"$0.001/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.001","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.001","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_76_LQD8vZk0WjXPshUxXK","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.001","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Fetches a value from a JSON document by navigating a specified JSON path, delivered as a machine-readable paid endpoint via the x402 micropayment protocol.","exampleAgentPrompt":"Can you extract the value at the JSON path '$.user.address.city' from this JSON object: {\"user\":{\"name\":\"Alice\",\"address\":{\"city\":\"Denver\",\"zip\":\"80201\"}}}?","exampleUseCases":[{"title":"Extract nested config value","prompt":"Pull out the value at the path '$.database.host' from this config JSON: {\"database\":{\"host\":\"db.example.com\",\"port\":5432,\"name\":\"prod_db\"}}."},{"title":"Retrieve API response field","prompt":"From this API response JSON, get me the value at '$.data.items[0].title': {\"data\":{\"items\":[{\"title\":\"First Result\",\"id\":42}]}}."},{"title":"Read user profile property","prompt":"Given this user profile JSON {\"profile\":{\"email\":\"jane@example.com\",\"role\":\"admin\"}}, fetch the value at the path '$.profile.role'."}],"resultDescription":"Returns a JSON object containing the value found at the specified JSON path within the input document. The response is open-ended and may include the extracted value in any JSON-compatible format (string, number, object, array, null).","failureModes":["Invalid or malformed JSON path expression returns an error or empty result","Input JSON document is missing or malformed, causing a parse failure","Path does not exist in the document, returning null or an empty response","Payment not processed (x402 payment required error) if micropayment header is missing","Overly broad input schema means type mismatches may cause silent failures"],"whenToPreferThis":"Choose this endpoint when you need a lightweight, pay-per-call JSON path extraction over a micropayment rail (x402/USDC), especially in agent workflows where per-query billing is preferable to a subscription. It is well-suited for serverless or agentic pipelines that already handle x402 payments and need to extract specific fields from arbitrary JSON structures on demand.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-14T06:50:10.479Z","isFirstParty":false}