{"uid":"cap_B8JtuJ36C_LI0UKgz7WVA","slug":"synapse-api-zksync-rpc-endpoint-7e4ce22e","name":"Synapse API — ZKsync RPC Endpoint","description":"High-speed API suite for AI processing, web scraping, and smart data utilities across 57+ blockchain networks. Pay-per-call via x402.","url":"https://synapse-api-brown.vercel.app/api/zksync/rpc?utm_source=zero.xyz","method":"POST","headers":{},"bodySchema":{"type":"object","properties":{"method":{"type":"string"},"params":{"type":"array","items":{}}}},"responseSchema":null,"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.01","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":"$0.01/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.01","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.01","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_3KY0n0kI2sCgjyO39gYNF","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.01","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Proxies JSON-RPC calls to the ZKsync Era blockchain network, enabling on-chain reads and writes via standard Ethereum-compatible methods.","exampleAgentPrompt":"Call eth_getBalance on ZKsync Era for wallet address 0xAbC...123 at the latest block and tell me how much ETH it holds.","exampleUseCases":[{"title":"Check wallet balance on ZKsync","prompt":"What's the ETH balance of address 0xDEAD...BEEF on ZKsync Era right now?"},{"title":"Broadcast signed transaction to ZKsync","prompt":"Submit this signed transaction to ZKsync Era: 0xf86c...signed-hex — and give me back the transaction hash."},{"title":"Read smart contract state on ZKsync","prompt":"Call the totalSupply function on the ERC-20 contract at 0x1234...abcd on ZKsync Era and return the value."}],"resultDescription":"A standard JSON-RPC response object containing the 'result' field with on-chain data (balance, block info, tx hash, etc.) or an 'error' object with code and message if the call fails.","failureModes":["Invalid RPC method name returns JSON-RPC error code -32601 (method not found)","Malformed params array returns error code -32602 (invalid params)","Network congestion or ZKsync node downtime returns a 503 or timeout","Submitting an invalid or already-mined transaction returns execution revert error","Payment failure (x402) blocks the request before it reaches the RPC layer"],"whenToPreferThis":"Choose this endpoint when you need pay-per-call ZKsync Era RPC access without managing your own node or committing to a subscription plan. Ideal for agents that interact with ZKsync infrequently or want metered on-chain access billed in USDC via x402.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-18T06:45:42.110Z","isFirstParty":false,"canonicalSlug":"synapse-api-zksync-rpc-endpoint-7e4ce22e"}