{"uid":"cap_NeL4v-lF6zs2Cy60YT6B8","slug":"x402-gateway-wallet-verify-nostr-dc4aa54e","name":"x402-gateway: wallet_verify_nostr","description":"x402-gateway tool: wallet_verify_nostr (market: bazaar)","url":"https://x402.freeq.one/market/bazaar/tools/wallet_verify_nostr?utm_source=zero.xyz","method":"POST","headers":{},"bodySchema":{"type":"object","properties":{"tool":{"type":"string","description":"Tool name (see GET /tools for the catalog)"}}},"responseSchema":null,"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.002","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":"$0.002/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.002","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.002","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_PLA37kDsNW5wTXotJh7tP","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.002","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Verifies ownership of a Nostr public key by checking its cryptographic link to an Ethereum wallet address","exampleAgentPrompt":"Can you verify that the Nostr public key npub1abc123... is actually owned by the Ethereum wallet 0xAbC123...? I want to confirm the cross-platform identity link before trusting this account.","exampleUseCases":[{"title":"Authenticate Nostr user before payment","prompt":"Before I send crypto to this person, verify that their Nostr profile npub1xyz789... is actually linked to and owned by the Ethereum address 0x1234abcd... so I know it's really them."},{"title":"Gate decentralized app access by Nostr-wallet binding","prompt":"I need to check if the Nostr pubkey npub1qwerty... is cryptographically tied to wallet 0xDeAdBeEf... before granting them access to our members-only content."},{"title":"Validate cross-platform identity claim","prompt":"This creator is claiming their Nostr account npub1abc000... is linked to their on-chain wallet 0x9876Fedc.... Can you run a verification to confirm that claim is legit?"}],"resultDescription":"Returns a verification result indicating whether the Nostr public key is cryptographically linked to and owned by the specified Ethereum wallet address, including validity status and any proof details.","failureModes":["Invalid or malformed Nostr public key format returns an error","Ethereum address not checksummed or invalid returns a validation error","No cryptographic link found between the Nostr key and wallet returns a failed verification","Network or RPC timeout when resolving on-chain data","Missing required tool parameter in request body"],"whenToPreferThis":"Use this endpoint when you need to verify cross-platform identity between a Nostr decentralized social account and an Ethereum wallet, particularly for trustless identity binding, gating access, or confirming ownership before executing a payment or granting privileges. Prefer this over generic signature verification when both a Nostr key and an Ethereum address are involved.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-26T12:30:37.924Z","isFirstParty":false,"canonicalSlug":"x402-gateway-wallet-verify-nostr-d49780f9"}