{"uid":"cap_hA2PBeX-Oco0z5V73x40Y","slug":"defi-tvl-lookup-chain-protocol-x402-fd5ca1fe","name":"DeFi TVL Lookup – Chain & Protocol (x402)","description":"Pay-per-call crypto microdata for trading/onchain AI agents via x402 (USDC on Base): Base gas, token risk, balances, multi-venue prices, Hyperliquid book/funding, kimchi premium. No API keys.","url":"https://kr-x402-mvp.kgy5612.workers.dev/v1/tvl?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":{"chain":{"type":"string","examples":["Base","Ethereum"],"maxLength":40,"description":"Chain name, e.g. Base, Ethereum, Solana"},"limit":{"type":"integer","maximum":50,"minimum":1,"description":"Top chains to list (default 15)"},"protocol":{"type":"string","examples":["aave"],"maxLength":60,"description":"DefiLlama protocol slug, e.g. aave, lido, aerodrome"}},"additionalProperties":false}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object"}}}}},"responseSchema":{"type":"json","example":{"defi":{"base":{"rank":5,"tvl_usd":3900000000,"share_pct":3.1},"flow":"flat","change_1d_pct":0.3,"change_7d_pct":-2.1,"total_tvl_usd":125000000000,"chains_counted":300,"change_30d_pct":4},"next":["/crypto/global-market","/crypto/stablecoin-peg"],"chain":{"flow":"flat","name":"Base","rank":5,"as_of":"2026-10-30","tvl_usd":3900000000,"chain_id":8453,"change_1d_pct":0.4,"change_7d_pct":-1.2,"change_30d_pct":5.6,"share_of_defi_pct":3.1},"signal":"NEUTRAL","source":"https://defillama.com","reasons":["DeFi TVL $125.0B, 7d -2.1%","Base #5 $3.90B, 7d -1.2% (flat)"],"top_chains":[{"name":"Ethereum","rank":1,"token":"ETH","tvl_usd":70000000000,"share_pct":56}],"updated_at":"2026-10-30T02:30:00Z"}},"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_OB2QTZqzr3ezREaqbRZLJ","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":"Returns DeFi total value locked (TVL) data for a specific blockchain or protocol, including rank, USD TVL, flow signal, and 1d/7d/30d changes, sourced from DefiLlama.","exampleAgentPrompt":"What's the current TVL on Base — give me the rank, USD amount, 7-day change, and whether the flow is flat, growing, or shrinking?","exampleUseCases":[{"title":"Monitor Base chain DeFi health","prompt":"Check the current TVL on Base for me — I want the rank, total USD locked, and how it's changed over the past 7 and 30 days so I can decide whether to deploy capital there."},{"title":"Compare top DeFi chains by TVL","prompt":"Show me the top 15 chains ranked by DeFi TVL right now, including each chain's share percentage and 7-day change — I'm trying to spot where liquidity is flowing."},{"title":"Protocol-specific TVL signal","prompt":"Pull the TVL data for Aave and tell me whether the flow is growing, flat, or shrinking, plus the 1-day and 7-day change percentages."}],"resultDescription":"Returns a JSON object containing: overall DeFi market TVL (USD, 1d/7d/30d changes, chain count), the queried chain's TVL rank, USD amount, chain ID, flow status, and share of total DeFi; a list of top chains by TVL; a NEUTRAL/BULLISH/BEARISH signal with human-readable reasons; source attribution; and suggested next endpoints to call.","failureModes":["Unknown chain name returns empty or null chain object","Invalid protocol slug returns no protocol-specific data","Limit parameter outside 1–50 range is rejected","Stale data if DefiLlama upstream is delayed","Payment failure via x402 (insufficient USDC balance) blocks the call"],"whenToPreferThis":"Choose this endpoint when an AI agent needs real-time DeFi TVL data for chain-level or protocol-level analysis without managing API keys — especially when the agent already handles x402 micropayments in USDC on Base. Prefer this over raw DefiLlama API calls when operating in an agent context that expects pre-interpreted signals (flow, rank, percent changes) rather than raw data dumps.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-31T18:42:14.340Z","isFirstParty":false,"canonicalSlug":"defi-tvl-lookup-chain-protocol-x402-fd5ca1fe"}