{"uid":"cap_pfBufTnn2Vuqe3h1lK8ft","slug":"nullifier-hash-generator-mcp-3bd896ac","name":"Nullifier Hash Generator MCP","description":"The premier global index of 1,069 monetized MCP nodes across 205 specialized subdomains. Gasless USDC runtime settlements via x402 V2 Spec on Base L2. Save 95% token context.","url":"https://api.m2mcent.com/nullifier-hash-generator-mcp/api/process?utm_source=zero.xyz","method":"POST","headers":{},"bodySchema":null,"responseSchema":{"type":"json","example":{"success":true}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.4","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":"$0.4/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.4","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.4","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_CHCkgiW52wAfmW4lH_YcS","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.4","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Generates a cryptographic nullifier hash from input data, enabling zero-knowledge or privacy-preserving protocols to prevent double-spending or double-voting.","exampleAgentPrompt":"Generate a nullifier hash for this commitment data: '0xabc123def456' — I need it for a ZK proof to make sure this token can't be spent twice.","exampleUseCases":[{"title":"ZK double-spend prevention","prompt":"I have a commitment value '0xdeadbeef9876' and I need to generate a nullifier hash from it to prevent double-spending in my zero-knowledge payment protocol — can you compute that?"},{"title":"Anonymous voting nullifier","prompt":"Generate a nullifier hash from the string 'voter_secret_42_roundId_7' so I can ensure this vote can only be cast once in my privacy-preserving voting system."},{"title":"Semaphore identity signal","prompt":"I'm building a Semaphore-style ZK app and need a nullifier hash derived from this identity commitment: 'identity_trapdoor_xyz_externalNullifier_clubA'. Can you generate it?"}],"resultDescription":"A cryptographic nullifier hash string derived from the provided input data, suitable for use in zero-knowledge proof systems, privacy-preserving protocols, or double-spend prevention mechanisms.","failureModes":["Empty or missing 'data' field returns an error or null hash","Malformed input string may produce unexpected hash output","Service unavailability or timeout returns a non-200 response","Payment failure (x402) if USDC balance is insufficient — request blocked before processing"],"whenToPreferThis":"Choose this endpoint when you need a fast, on-demand nullifier hash computation for ZK proof systems, anonymous voting, or double-spend prevention without running your own cryptographic infrastructure. Suitable for agents operating in blockchain or privacy-preserving contexts that need a simple REST interface to nullifier generation.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-12T12:49:27.285Z","isFirstParty":false,"canonicalSlug":"nullifier-hash-generator-mcp-3bd896ac"}