{"uid":"cap_ZS4H-1FGYoXPKHYsJfHul","slug":"kerne-kusd-proof-of-reserves-attestation-47004f89","name":"Kerne kUSD Proof-of-Reserves Attestation","description":"Kerne's hourly EOA-signed proof-of-reserves attestation for kUSD: PSM backing ratio, aggregate USD solvency, delta, all cryptographically bound to an EIP-191 signature you can verify yourself. Same signed blob served free to humans; metered here for agents.","url":"https://x402-gateway-omega.vercel.app/reserves","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"],"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":"0.25","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":"$0.25/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.25","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.25","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_TlSkO5vS4Ncft9vx9yyWn","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.25","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Returns a cryptographically signed (EIP-191) hourly proof-of-reserves attestation for kUSD, including PSM backing ratio, aggregate USD solvency, and delta.","exampleAgentPrompt":"Can you pull the latest signed proof-of-reserves for kUSD — I want to see the current PSM backing ratio, the aggregate solvency figure, and the delta, all with the EIP-191 signature so I can verify it myself?","exampleUseCases":null,"resultDescription":"A signed JSON blob containing the hourly kUSD proof-of-reserves: PSM backing ratio, total USD solvency figure, reserve delta, and an EIP-191 cryptographic signature from Kerne's EOA that the caller can independently verify on-chain.","failureModes":["Payment not received or x402 payment header missing — returns 402 Payment Required","Attestation not yet generated for current hour — may return stale or 503","Invalid or malformed request — returns 400","Service unavailable on Vercel deployment — returns 503 or 504"],"whenToPreferThis":"Choose this endpoint when you need a cryptographically verifiable, machine-readable hourly reserve attestation for kUSD with an EIP-191 signature — especially in automated agent workflows that must audit stablecoin solvency or PSM backing without trusting a dashboard.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-15T18:33:09.450Z","isFirstParty":false}