{"uid":"cap_D9XgeeJ7yEa4oL8FTzSeg","slug":"delx-is-json-array-1f2e5bea","name":"Delx Is JSON Array","description":"Check whether value is a JSON array. Call when you validate agent payloads before list ops. Returns boolean result for $0.001 USDC via x402 on Base. No network, no keys, no retention; first-party local JSON only. Results are advisory; the caller owns budgets, auth, and production controls.","url":"https://api.delx.ai/api/v1/x402/is-json-arr?utm_source=zero.xyz","method":"POST","headers":{},"bodySchema":{"type":"object","properties":{"value":{"type":"array","description":"Input field: value."}}},"responseSchema":{"type":"json","example":{"result":true,"schema":"delx/util-is-json-arr/v1"}},"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_4chvHhKFrgWFaPeM5bl1V","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":"Checks whether a given value is a valid JSON array and returns a boolean result","exampleAgentPrompt":"Before we start the list processing step, can you confirm whether this value is actually a JSON array: [\"apple\", \"banana\", \"cherry\"]?","exampleUseCases":[{"title":"Agent payload pre-flight check","prompt":"Before you run the batch operation, check if the payload I'm about to send — [\"step1\", \"step2\", \"step3\"] — is actually a JSON array so we don't hit a type error."},{"title":"Validating LLM output before iteration","prompt":"The model returned this value and I need to loop over it — can you verify it's a JSON array: [{\"id\":1},{\"id\":2}]?"},{"title":"Guarding list ops in a data pipeline","prompt":"I'm about to feed this into a list-processing function. First, check if the value I have is a proper JSON array — it looks like it might just be a string or an object."}],"resultDescription":"A boolean indicating whether the submitted value is a JSON array (true) or not (false). No additional metadata, no data is retained, and processing is done locally.","failureModes":["Missing or malformed request body returns an error","Non-JSON-serializable value may cause a parsing error","Payment of 0.001 USDC via x402 on Base must succeed or the call is rejected","Network timeout if the endpoint is temporarily unavailable"],"whenToPreferThis":"Choose this endpoint when you need a lightweight, stateless, privacy-safe type-check to confirm a value is a JSON array before executing list operations in an agent pipeline. It is ideal for pre-flight validation in automated workflows where correctness is critical and no external data retention or API keys are acceptable. Prefer this over inline code checks when you need a verifiable, auditable external validation step with a clear cost footprint ($0.001 USDC).","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-20T00:57:54.404Z","isFirstParty":false,"canonicalSlug":"delx-is-json-array-1f2e5bea"}