{"uid":"cap__C5YC0vRgcGKO9E5MgglL","slug":"x402-broker-cross-chain-apy-scanner-3b181b2c","name":"X402-Broker Cross-Chain APY Scanner","description":"Universal B2A/A2A/MCP Meta-Router & Autonomous Tool Marketplace indexing 7,340+ live capabilities across x402 v2 (5-chain EVM USDC), IETF MPP, and L402 with TDQS quality scoring and zero-fee pass-through execution.","url":"https://x402broker.com/v1/cross-chain-apy-scanner?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","POST"],"type":"string"},"queryParams":{"type":"object","properties":{"asset":{"type":"string"}}}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object"}}}}},"responseSchema":{"type":"json","example":{"data":{},"status":"ok","roi_proof":{"compression_ratio_pct":91.4}}},"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_qU9dzqnuofMi5Zl5NuXun","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":"Scans and returns live cross-chain annual percentage yield (APY) data for crypto assets across multiple EVM chains via a meta-broker endpoint.","exampleAgentPrompt":"Scan the current cross-chain APY for USDC across all supported EVM chains and tell me where I can get the best yield right now.","exampleUseCases":[{"title":"Best stablecoin yield across chains","prompt":"What's the highest APY I can get for USDC right now across Base, Arbitrum and the other supported EVM chains? Scan all of them and compare."},{"title":"DeFi portfolio rebalancing research","prompt":"I'm thinking about moving my stablecoin liquidity — can you pull the latest cross-chain APY data for USDT so I can see which chain is paying the most?"},{"title":"Automated yield monitoring for ETH","prompt":"Fetch the current cross-chain APY rates for ETH so I can track whether yields are improving or degrading compared to last week."}],"resultDescription":"Returns a JSON object with status 'ok', a data payload containing APY rates and yield data across supported chains for the requested asset, and an roi_proof field including a compression_ratio_pct indicating how much data was compressed in the response.","failureModes":["Missing or invalid 'asset' query parameter may return empty or error response","Unsupported asset symbols may return no yield data","Upstream DeFiLlama or chain data provider outages may cause stale or missing data","Payment failure (insufficient USDC) blocks execution","Rate limiting or quota exhaustion on the meta-broker may cause 402 or 429 errors"],"whenToPreferThis":"Choose this endpoint when you need a single unified call to scan live APY data across multiple EVM chains simultaneously, rather than querying each chain's DeFi protocol individually. Especially useful when you want risk-adjusted, cross-chain yield comparison with compressed output for token efficiency in agent workflows.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-22T12:40:55.906Z","isFirstParty":false,"canonicalSlug":"x402-broker-cross-chain-apy-scanner-3b181b2c"}