{"uid":"cap_PU_ZEtB-kbi_kyLmUKm7-","slug":"synapse-api-base-network-rpc-endpoint-d5f2089c","name":"Synapse API — Base Network 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/base/rpc","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_R2ginOJBsaFDGDGWCxQcU","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":"Executes JSON-RPC method calls against the Base blockchain network, enabling on-chain data queries and transactions via pay-per-call micropayments.","exampleAgentPrompt":"Can you check the current ETH balance of wallet address 0xABC123... on the Base network using eth_getBalance with the latest block?","exampleUseCases":[{"title":"Check wallet balance on Base","prompt":"What's the current ETH balance for wallet 0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045 on Base network?"},{"title":"Fetch latest Base block info","prompt":"Get me the latest block details from the Base blockchain — I need the block number, timestamp, and transaction count."},{"title":"Read smart contract data on Base","prompt":"Call the balanceOf function on the USDC contract at 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 on Base for my address 0xMyWallet123 so I can see my USDC balance."}],"resultDescription":"Returns a standard JSON-RPC response object containing the result field with blockchain data (balance, block info, transaction receipt, contract return value, etc.) or an error object with code and message if the call fails.","failureModes":["Invalid RPC method name returns JSON-RPC error -32601 (method not found)","Malformed params array returns error -32602 (invalid params)","Payment failure (insufficient USDC) results in 402 Payment Required before execution","Network congestion may cause timeouts on transaction submissions","Calling non-existent contract addresses returns empty result rather than error"],"whenToPreferThis":"Choose this endpoint when you need direct, low-latency JSON-RPC access to the Base (Coinbase L2) network and want pay-per-call pricing without a subscription. Ideal for agents that need occasional on-chain lookups or one-off contract calls on Base without provisioning a dedicated RPC node or API key.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-14T06:45:18.978Z","isFirstParty":false}