{"uid":"cap_HM4fbmeQvcB7TeRB9ZU8s","slug":"agentkv-read-verify-key-u3b-verify-50907219","name":"AgentKV Read/Verify Key (u3b:verify)","description":"Agent-native encrypted key-value store, paid per request over x402 — no signup, no API key. The payer's wallet (or an ak_ account key) is the namespace; values are client-side encrypted. Write $0.005, read $0.003; prepay $1 = 10,000 credits at 1/10 the per-op price (POST /v1/credits/deposit). SDK: npm i @agentkv/client. Docs: https://agentx402.ai","url":"https://api.agentx402.ai/v1/kv/u3b%3Averify","method":"GET","headers":{},"bodySchema":{"type":"object","$schema":"https://json-schema.org/draft/2020-12/schema","required":["input"],"properties":{"input":{"type":"object","required":["type","method"],"properties":{"type":{"type":"string","const":"http"},"method":{"enum":["GET","HEAD","DELETE"],"type":"string"},"queryParams":{"type":"object","properties":{}}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object"}}}}},"responseSchema":null,"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_DRgdNZzWMF_W675aSA-e5","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":"Reads or verifies a specific encrypted key-value entry at path u3b:verify from an agent-native key-value store, paying $0.003 USDC per request via x402 with no signup required.","exampleAgentPrompt":"Can you retrieve the encrypted value stored at the key 'u3b:verify' in my AgentKV store? Use my wallet as the namespace and pay the $0.003 read fee automatically.","exampleUseCases":null,"resultDescription":"Returns the stored (client-side encrypted) value associated with the key 'u3b:verify' within the caller's wallet-namespaced KV store. May also confirm existence/absence of the key for HEAD requests, or return an empty/null response if the key does not exist.","failureModes":["Key not found: returns 404 if the requested key does not exist in the namespace","Insufficient credits or payment failure: returns 402 if x402 payment is not accepted or wallet has no credits","Unauthorized namespace: returns 403 if the wallet/account key does not match the namespace","Invalid method: returns 400 if an unsupported HTTP method is used","Network timeout: slow response if x402 payment negotiation takes too long"],"whenToPreferThis":"Use this endpoint when an AI agent needs to read or verify a previously stored encrypted value from the AgentKV store without any prior signup or API key — especially when the agent's wallet is the identity and namespace, and micro-payments via x402 are acceptable. Prefer this over traditional KV stores when operating in a trustless, agent-native, pay-per-use environment.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-13T18:34:54.488Z","isFirstParty":false}