{"uid":"cap_TD1d-Qt_-YfEWOxMxM0Fz","slug":"m2mcent-zk-snark-payload-verifier-89580746","name":"M2MCent ZK-SNARK Payload Verifier","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/zk-snark-payload-verifier-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":"0.25","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_fvKF3K-Owh0jnIbD-VZUI","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":"Verifies zero-knowledge SNARK proofs submitted as payload data, returning a transaction hash and success status on Base L2","exampleAgentPrompt":"Can you verify this ZK-SNARK proof payload for me and return whether it's valid along with the transaction hash: '<my_encoded_proof_string>'?","exampleUseCases":[{"title":"On-chain proof verification for dApp","prompt":"I have a ZK-SNARK proof my dApp generated that I need verified on Base L2 — can you submit this encoded proof payload and tell me if it passed and what the transaction hash is?"},{"title":"Automated credential attestation pipeline","prompt":"We're running an automated pipeline that needs to verify zero-knowledge credential proofs — can you process this zk-snark data string and confirm success with a tx hash so we can proceed?"},{"title":"Audit trail for private computation","prompt":"I need to create an on-chain audit record for a private computation — please submit this ZK-SNARK payload for verification and give me the resulting transaction hash."}],"resultDescription":"A JSON object containing a boolean 'success' field indicating whether the ZK-SNARK proof was accepted, and a 'txHash' string with the Base L2 transaction hash of the verification settlement.","failureModes":["Invalid or malformed ZK-SNARK payload returns success: false","Malformed data string causes processing error","Payment failure (insufficient USDC) blocks execution","Network or Base L2 congestion delays response","Missing or empty 'data' field causes schema validation error"],"whenToPreferThis":"Choose this endpoint when you need to verify a ZK-SNARK proof payload on Base L2 via a monetized MCP node and require an on-chain transaction hash as proof of verification. Prefer it over generic validators when you need gasless USDC settlement via the x402 protocol and a standardized MCP interface.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-19T12:42:51.966Z","isFirstParty":false,"canonicalSlug":"m2mcent-zk-snark-payload-verifier-89580746"}