{"uid":"cap_2VydWSslL25hxy1up45ci","slug":"santyvv-data-defi-chains-list-d9e2976c","name":"santyvv-data DeFi Chains List","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/defi/chains?utm_source=zero.xyz","method":"GET","headers":{},"bodySchema":{"type":"object","$schema":"https://json-schema.org/draft/2020-12/schema","required":["input"],"properties":{"input":{"type":"object","required":["type","method"],"properties":{"type":{"type":"string","const":"http"},"method":{"enum":["GET"],"type":"string"},"queryParams":{"type":"object","properties":{}}},"additionalProperties":false}}},"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_6_-JMUlzgOEcebgSmlyLC","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":"Returns a list of supported blockchain networks available for on-chain DeFi data queries, paid per call via x402/USDC","exampleAgentPrompt":"Give me a list of all the blockchain networks supported by the santyvv DeFi data API — I want to know which chains I can query for on-chain data.","exampleUseCases":[{"title":"Discover available chains before querying","prompt":"Before I start pulling on-chain data, show me which blockchain networks are available so I can pick the right one for my DeFi analysis."},{"title":"Build chain selector for DeFi dashboard","prompt":"I'm building a dashboard that lets users pick a blockchain to analyze — can you fetch the full list of supported chains from the santyvv data API so I can populate the dropdown?"},{"title":"Verify chain support for a specific network","prompt":"I need to check whether Arbitrum and Optimism are included in the supported chains list before I wire up my on-chain data queries — can you pull that list for me?"}],"resultDescription":"A normalized list of supported blockchain networks, likely including chain names, chain IDs, and metadata indicating which networks are available for subsequent DeFi and on-chain data queries. Response is edge-cached and sourced from public on-chain data providers.","failureModes":["402 Payment Required if USDC payment via x402 is not provided or insufficient","Network timeout if upstream data providers are unavailable","Empty or partial chain list if provider fallback is exhausted","Invalid response format if edge cache is stale or corrupted"],"whenToPreferThis":"Choose this endpoint when you need a keyless, account-free way to discover which blockchain networks are supported for DeFi data queries, especially in agent workflows that use x402 micropayments on Base. Prefer over alternatives when you want normalized, multi-source responses without managing API keys.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-11T12:42:01.715Z","isFirstParty":false,"canonicalSlug":"santyvv-data-defi-chains-list-d9e2976c"}