{"uid":"cap_chMAKc9YHYV6kzmc_hDej","slug":"delx-commerce-json-ld-key-list-3bf28eff","name":"Delx Commerce — JSON-LD Key List","description":"Pay-per-result APIs for agents. No signup. Exact price. Verifiable delivery. USDC on Base + Solana via x402.","url":"https://commerce.delx.ai/api/v1/x402/jsonld-key-list?utm_source=zero.xyz","method":"POST","headers":{},"bodySchema":{"type":"object","properties":{"data":{"type":"object","description":"JSON object or array of objects whose keys will be listed."}}},"responseSchema":{"type":"json","example":{"keys":["@type","name"],"shape":"object","schema":"delx/util-jsonld-key-list/v1","key_count":2}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.003","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":"$0.003/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.003","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.003","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_yitn9DEhwI6AcgnCAUrfd","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.003","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Extracts and lists all top-level keys from a JSON-LD object or array of objects, returning key names, count, and detected shape.","exampleAgentPrompt":"Can you list all the top-level keys in this JSON-LD object: {\"@type\": \"Person\", \"name\": \"Alice\", \"email\": \"alice@example.com\"}?","exampleUseCases":[{"title":"Inspect incoming linked data payload","prompt":"I just received this JSON-LD document from an external API — can you tell me all the top-level keys it contains and how many there are? Here it is: {\"@context\": \"https://schema.org\", \"@type\": \"Product\", \"name\": \"Widget\", \"price\": 9.99}"},{"title":"Validate JSON-LD schema fields","prompt":"Before I process this linked data record, I need to know exactly which property names are at the top level so I can check they match the expected schema — can you extract the key list from this object: {\"@type\": \"Event\", \"name\": \"Conference\", \"startDate\": \"2025-09-01\"}"},{"title":"Discover structure of unfamiliar JSON-LD","prompt":"I've got a JSON-LD blob from a third-party data source and I have no idea what properties it exposes — can you enumerate all the keys for me? Here's the object: {\"@type\": \"Organization\", \"legalName\": \"Acme Corp\", \"foundingDate\": \"2001\", \"url\": \"https://acme.com\"}"}],"resultDescription":"Returns a JSON object containing an array of top-level key names found in the input, the total count of those keys, the detected shape (e.g. 'object'), and a schema identifier string ('delx/util-jsonld-key-list/v1').","failureModes":["Invalid or malformed JSON input returns an error","Empty object returns an empty keys array with key_count of 0","Payment failure via x402 results in 402 response before processing","Non-object input types (e.g. plain string) may return unexpected results"],"whenToPreferThis":"Use this endpoint when you need a quick, cheap ($0.003 USDC) programmatic way to enumerate top-level keys from a JSON-LD or generic JSON object without setting up an account or managing API keys. Ideal for agent workflows that need to dynamically inspect linked data structures before further processing, schema validation, or routing logic.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-01T00:53:47.041Z","isFirstParty":false,"canonicalSlug":"delx-commerce-json-ld-key-list-3bf28eff"}