{"uid":"cap_1HtFOQtGDrYpnsaTscGiJ","slug":"merkl-stable-yield-ranking-api-eefc9802","name":"Merkl Stable Yield Ranking API","description":"Exact EVM address, calldata, Uniswap V2/V3 and impermanent-loss math. Pay per call in USDC on Base via x402.","url":"https://golf-evm-math.x402-evm-math.workers.dev/sample/merkl-stable?utm_source=zero.xyz","method":"GET","headers":{},"bodySchema":{"type":"object","properties":{"properties":{"type":"string"}}},"responseSchema":{"type":"json","example":{"chain":"base","campaigns":[{"rank":1,"protocol":"Hyperdrive","net_apr_pct":37.1}]}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.001","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":"$0.001/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.001","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.001","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_KQiIv73Lw-FrU15W6YpRK","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.001","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Returns ranked stable-yield DeFi campaigns on Base via the Merkl protocol, showing protocol name and net APR percentage per pool.","exampleAgentPrompt":"What are the top-ranked stable yield campaigns on Merkl right now on Base, and which protocol has the highest net APR?","exampleUseCases":[{"title":"Chasing best stablecoin yield on Base","prompt":"I want to park some USDC in a stablecoin pool on Base — can you pull the current Merkl stable yield rankings and tell me which protocol has the highest net APR right now?"},{"title":"Comparing DeFi protocols for stable returns","prompt":"I'm deciding between Hyperdrive and a few other protocols for stable yields. Can you get me the ranked list of Merkl stable campaigns on Base so I can see who's offering the best returns?"},{"title":"Monitoring yield for portfolio rebalancing","prompt":"Can you check the latest Merkl stable APR rankings on Base and let me know if anything has jumped above 30% net APR since last time?"}],"resultDescription":"A JSON object containing the chain name (e.g. 'base') and an array of ranked stable campaigns, each with a rank integer, protocol name string, and net APR percentage (e.g. 37.1%). Campaigns are ordered from highest to lowest net APR.","failureModes":["Merkl data unavailable — upstream API outage returns error or empty campaigns array","Invalid or missing query parameters return a 400 or empty result","Payment not settled via x402 — call is blocked with 402 Payment Required before data is returned","Rate limiting or quota exceeded on the worker returns 429"],"whenToPreferThis":"Choose this endpoint when you need a fast, ranked view of current stable-coin yield campaigns on Base via the Merkl protocol, especially when you want net APR comparisons across multiple protocols in a single call. Prefer this over manually querying each protocol's own API or on-chain data when you need a consolidated leaderboard with minimal latency.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-29T00:30:16.964Z","isFirstParty":false,"canonicalSlug":"merkl-stable-yield-ranking-api-c917bbb8"}