{"uid":"cap_djeo2zxQ-MDNLA5wCW0-6","slug":"vextorium-multi-chain-json-rpc-proxy-aa315bbf","name":"Vextorium Multi-Chain JSON-RPC Proxy","description":"552 pay-per-call data APIs for AI agents: Solana and EVM on-chain data, tokenized stocks, DeFi, Hyperliquid, economy and official statistics, FX, validation, web and developer tools. Pay in USDC via x402.","url":"https://api.vextorium.com/v1/rpc?utm_source=zero.xyz","method":"POST","headers":{},"bodySchema":{"type":"object","properties":{"chain":{"enum":["ethereum","base","arbitrum","optimism","polygon","bnb","avalanche","gnosis","line","scroll","sonic","unichain","solana","xrpl"],"type":"string"},"method":{"type":"string","description":"JSON-RPC method (read-only), e.g. eth_getBalance, getSlot, account_info"},"params":{"type":"array","description":"Method params (for XRPL, one object)"}}},"responseSchema":{"type":"json","example":{"chain":"base","method":"eth_blockNumber","result":"0x3214aa0","source":"Public node (base-rpc.publicnode.com)","latency_ms":100}},"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_ywB4iDFy8sV6RZ65iDaFb","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":"Executes a read-only JSON-RPC method on any of 14 supported blockchains (12 EVM chains, Solana, XRPL) and returns the raw node result, paid per call at $0.002 USDC.","exampleAgentPrompt":"What's the current ETH balance of wallet 0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045 on Ethereum mainnet — call eth_getBalance with 'latest' as the block parameter.","exampleUseCases":[{"title":"Check wallet ETH balance on Base","prompt":"What's the ETH balance of 0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045 on Base? Use eth_getBalance with 'latest'."},{"title":"Get latest Solana slot number","prompt":"What's the current slot on Solana? Call the getSlot method on the Solana chain."},{"title":"Read XRPL account info","prompt":"Look up the XRP Ledger account info for rHb9CJAWyB4rj91VRWn96DkukG4bwdtyTh using the account_info method."}],"resultDescription":"A JSON object containing the chain queried, the RPC method called, the raw result from the node (e.g. a hex block number, balance, or structured object), the source node URL, and the round-trip latency in milliseconds.","failureModes":["Unsupported chain identifier returns an error","Write methods (eth_sendRawTransaction, etc.) are rejected as read-only endpoint","Malformed params array causes node-level RPC error","Node timeout or temporary unavailability returns latency spike or error","Payment failure (insufficient USDC) blocks the call via x402 protocol"],"whenToPreferThis":"Choose this endpoint when you need raw, low-level JSON-RPC access to any of 14 supported chains without setting up your own RPC node or managing API keys. It is ideal for agents that need to make one-off or infrequent on-chain reads across multiple chains without provisioning per-chain infrastructure. At $0.002/call it suits low-to-moderate query volumes where pay-per-call is preferred over subscription RPC services.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-14T06:46:13.319Z","isFirstParty":false,"canonicalSlug":"vextorium-multi-chain-json-rpc-proxy-aa315bbf"}