{"uid":"cap_4jaXgzElKtCDnxgbmwknv","slug":"alchemy-node-json-rpc-passthrough-6c3bfd21","name":"Alchemy Node JSON-RPC Passthrough","description":"Pay-per-request access to CoinGecko, DefiLlama, Alchemy, and Etherscan APIs. No auth, no subscriptions.","url":"https://stablecrypto.dev/api/alchemy/node/rpc","method":"POST","headers":{},"bodySchema":{"type":"object","properties":{"method":{"type":"string","description":"JSON-RPC method (e.g. eth_blockNumber, eth_getBalance)"},"params":{"type":"array","items":{},"description":"JSON-RPC params array"},"network":{"type":"string","description":"Alchemy network slug, e.g. eth-mainnet, base-mainnet"}}},"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_Pd8hb1cRIcG2kLIJg2zbm","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 standard Ethereum JSON-RPC methods against any Alchemy-supported network via a paid passthrough endpoint","exampleAgentPrompt":"Call eth_getBalance on eth-mainnet for address 0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045 and tell me the current ETH balance.","exampleUseCases":null,"resultDescription":"Returns the raw JSON-RPC response object from Alchemy's node for the specified network and method, including the result field (e.g. hex-encoded balance, block object, transaction receipt, or contract return data) or an error object if the call fails.","failureModes":["Invalid network slug returns an error indicating unsupported network","Malformed JSON-RPC method name returns method not found error","Missing required 'network' or 'method' fields returns HTTP 400 validation error","Insufficient USDC balance or payment failure returns HTTP 402","Rate limiting or Alchemy node downtime may return 503 or timeout","Invalid params array for the given method returns JSON-RPC invalid params error"],"whenToPreferThis":"Use this endpoint when you need to query any standard Ethereum JSON-RPC method across multiple Alchemy-supported networks (Ethereum mainnet, Base, Polygon, etc.) without managing your own Alchemy API key. Ideal for AI agents that need on-chain data reads such as balances, block info, transaction receipts, or contract calls, and can pay per-call via x402/USDC micropayments.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-14T00:51:51.822Z","isFirstParty":false}