{"uid":"cap_8NzOH6XwxYogflP5Q2e2g","slug":"x402-safe-stablecoin-yields-defi-due-diligence-pool-screener-141f3538","name":"x402 Safe Stablecoin Yields — DeFi Due-Diligence Pool Screener","description":"Vetted stablecoin yields: top stablecoin pools (DefiLlama, TVL>$5M, APY 1-25%) joined with each protocol's age and hack history, safest-yield first; optional ?chain= & ?limit=. No required params. Use when an agent needs where to park stablecoins with due-diligence already applied.","url":"https://x402-data-api.sigrunner.workers.dev/defi/safe-yields?utm_source=zero.xyz","method":"GET","headers":{},"bodySchema":{"type":"object","$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","description":"optional chain filter"},"limit":{"type":"string","description":"optional, max 30"}}}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object","required":["pools"],"properties":{"pools":{"type":"array","items":{"type":"object","required":["project","chain","symbol","apy","tvl_usd","protocol_age_days","hacked_before"],"properties":{"apy":{"type":"number"},"chain":{"type":"string"},"symbol":{"type":"string"},"project":{"type":"string"},"tvl_usd":{"type":"integer"},"hacked_before":{"type":"boolean"},"protocol_age_days":{"type":"integer"}}}}}}}}}},"responseSchema":{"type":"json","example":{"pools":[{"apy":4.2,"chain":"Ethereum","symbol":"USDC","project":"aave-v3","tvl_usd":900000000,"hacked_before":true,"protocol_age_days":1662}]}},"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_a3JRYq3txR2jH9e5GBSB9","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 curated, pre-screened list of stablecoin yield pools (from DefiLlama) filtered for safety: TVL > $5M, APY 1–25%, enriched with protocol age and hack history, sorted safest-first.","exampleAgentPrompt":"Show me the safest stablecoin yield pools on Ethereum right now — I want options that have been vetted for hack history and protocol age, limited to the top 10.","exampleUseCases":[{"title":"Idle treasury stablecoin allocation","prompt":"I've got idle USDC in our treasury and want to earn yield safely — can you find me the top 5 vetted stablecoin pools on Ethereum that have never been hacked and have been around a while?"},{"title":"Cross-chain yield comparison for a DeFi agent","prompt":"Compare the safest stablecoin yield opportunities across all chains and show me the top 15, ranked by safety first — I need protocol age and hack history included."},{"title":"Arbitrum stablecoin yield scouting","prompt":"What are the best stablecoin pools on Arbitrum right now? I want yields that have already been screened for TVL and hack risk, give me up to 20 results."}],"resultDescription":"A JSON object containing an array of pools, each with: project name, chain, stablecoin symbol, APY (number), TVL in USD (integer), protocol age in days, and a boolean indicating whether the protocol has been hacked before. Results are pre-filtered (TVL > $5M, APY 1–25%) and sorted safest-first.","failureModes":["Invalid chain parameter returns empty pool list or error","Limit exceeding 30 is clamped or rejected","DefiLlama data source temporarily unavailable causes stale or empty response","Network timeout from Cloudflare Workers edge if upstream DeFi data is slow"],"whenToPreferThis":"Use this endpoint when an AI agent needs to make a stablecoin yield allocation decision and wants due diligence already applied — specifically when you need hack history and protocol age baked into the ranking rather than raw APY lists. Prefer this over generic DeFi yield APIs (like the sibling top-pools endpoint) when safety filtering and risk metadata matter. Best when the agent doesn't want to run its own TVL or hack-history filters.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-20T12:47:55.598Z","isFirstParty":false,"canonicalSlug":"x402-safe-stablecoin-yields-defi-due-diligence-pool-screener-141f3538"}