{"uid":"cap_utsDGUhruXs0IaA-tZ6e3","slug":"santyvv-data-chain-rpc-endpoint-27ddb65c","name":"santyvv-data Chain RPC Endpoint","description":"Market and on-chain data, paid per call in USDC on Base through the x402 protocol. No accounts, no API keys. Sources are public data providers; the value added here is keyless access, edge caching, multi-source fallback and normalised responses.","url":"https://x402.santyvv.com/api/chain/rpc?utm_source=zero.xyz","method":"POST","headers":{},"bodySchema":{"type":"object","$schema":"https://json-schema.org/draft/2020-12/schema","required":["input"],"properties":{"input":{"type":"object","required":["type","method","bodyType","body"],"properties":{"body":{"properties":{}},"type":{"type":"string","const":"http"},"method":{"enum":["POST"],"type":"string"},"bodyType":{"enum":["json","form-data","text"],"type":"string"}},"additionalProperties":false}}},"responseSchema":null,"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.02","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":"$0.02/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.02","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.02","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_ITBGfGF6DLtQA-l6qtAAG","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.02","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Provides keyless, pay-per-call access to blockchain RPC calls on Base via the x402 micropayment protocol, paid in USDC with no account or API key required.","exampleAgentPrompt":"Make a JSON-RPC call to the Base blockchain — I want to query the latest block number — and pay the $0.02 USDC fee automatically via x402, no API key needed.","exampleUseCases":[{"title":"Keyless Base chain state lookup","prompt":"Query the current ETH balance for wallet address 0xAbC...123 on Base using a pay-per-call RPC endpoint — I don't want to set up an account or get an API key, just pay the tiny USDC fee per request."},{"title":"On-chain transaction receipt check","prompt":"Fetch the transaction receipt for tx hash 0xDEF...456 on the Base network right now — use the keyless x402 RPC endpoint and charge the $0.02 USDC per call."},{"title":"Smart contract read call via RPC","prompt":"Call the read method 'totalSupply' on the ERC-20 contract at 0x789...ABC on Base — I need the raw RPC response and I'm happy to pay micro-USDC per call instead of dealing with API key signup."}],"resultDescription":"Returns a normalized JSON-RPC response containing the requested on-chain data (e.g. block data, account balance, transaction receipt, contract state), served from an edge-cached multi-source fallback setup. The response mirrors standard JSON-RPC 2.0 structure with a result or error field.","failureModes":["Insufficient USDC balance for the $0.02 x402 micropayment — returns HTTP 402 Payment Required","Invalid or malformed RPC method/body — returns an RPC error object","Upstream RPC provider unavailable — multi-source fallback may still succeed, but all sources failing returns a 503","Unsupported bodyType value — returns a 400 Bad Request","Network congestion causing slow response on Base"],"whenToPreferThis":"Prefer this endpoint when you need keyless, accountless access to Base blockchain RPC calls and want to pay only per successful call in USDC via x402. Ideal for agents that don't have pre-provisioned API keys for RPC providers, need edge-cached responses, or benefit from multi-source fallback without managing provider accounts. Not suitable if you need EVM chains other than Base, or if you require free-tier RPC access.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-11T12:45:43.168Z","isFirstParty":false,"canonicalSlug":"santyvv-data-chain-rpc-endpoint-27ddb65c"}