{"id":"e1e769b2-e547-49f8-8251-9b07afb3574f","shortId":"qQXL77","kind":"x402","title":"Lido stETH APY data via x402 micropayment on Base, $0.02 per request.","tagline":"Lido stETH APY data via x402 micropayment on Base, $0.02 per request.","description":"This endpoint returns Lido staking APY data through an x402-gated API at `https://lowpaymentfee.com/api/v1/defi/lido/apy`. Each call costs $0.02, paid in USDC on the Base network. The x402 challenge was confirmed live, returning a 402 with an `exact` payment scheme requiring 20,000 base units of USDC (0.02 USD, since USDC uses 6 decimals) to the address `0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3`.\n\nThe endpoint is part of a broader platform at lowpaymentfee.com that offers dozens of pay-per-call APIs spanning DeFi data, AI/ML inference, finance, and utility services — all priced at $0.02 per request with no API keys, no rate limits, and no commitments. The specific Lido APY endpoint is categorized under Finance & Web3, though it is not explicitly listed on the homepage (the homepage lists `/api/v1/finance/prices`, `/api/v1/finance/rates`, `/api/v1/crypto/quotes`, and `/api/v1/crypto/gas`). No OpenAPI schema, request/response examples, or detailed documentation were found in the crawl; the docs, pricing, and API pages all rendered only a \"Connect wallet\" prompt with no additional content.\n\nBecause there is no schema or sample response available, the exact shape of the returned APY data is unknown. Callers should expect a JSON response (the x402 challenge specifies `mimeType: application/json`) containing Lido staking yield information, but field names and structure must be discovered empirically.","tags":[],"capabilities":["defi-data","lido-apy","staking-yield","x402-payment","usdc-base","pay-per-request","json-api"],"categories":["defi","finance"],"synonyms":["Lido APY","stETH yield","Lido staking rate","Ethereum staking APY","liquid staking yield","Lido finance API","DeFi yield data"],"warnings":["No OpenAPI or JSON schema available for request or response","Documentation pages (docs, pricing, API, README) all render only 'Connect wallet' with no content","This specific Lido APY endpoint is not listed among the homepage's advertised APIs — it may be undocumented or experimental","Response structure must be discovered empirically; no sample data available"],"endpointUrl":"https://lowpaymentfee.com/api/v1/defi/lido/apy","protocol":"x402","transport":"http","auth":{"type":"x402","details":[{"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","extra":{"name":"USD Coin","version":"2"},"payTo":"0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3","scheme":"exact","network":"base","mimeType":"application/json","resource":"https://lowpaymentfee.com/api/v1/defi/lido/apy","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}]},"qualityScore":"0.350","qualityRationale":"The x402 challenge is live and pricing is clear ($0.02 USDC on Base), but there is no OpenAPI schema, no request/response examples, no documentation beyond a wallet-connect prompt, and this specific endpoint is not even listed on the homepage. The actual response format is entirely 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'/api/v1/crypto/quotes':153 '/api/v1/defi/lido/apy':41 '/api/v1/finance/prices':151 '/api/v1/finance/rates':152 '0.02':10,22,45,74,116 '000':69 '0x1a2b13e97f5f837c8f9fa1f95a1484b7c70d85f3':84 '20':68 '402':61 '6':79 'DeFi yield data' 'Ethereum staking APY' 'Lido APY' 'Lido finance API' 'Lido staking rate' 'addit':184 'address':83 'ai/ml':107 'api':3,15,30,37,103,121,132,173,201 'application/json':216 'avail':194 'base':9,21,51,70 'broader':91 'call':43,102 'caller':205 'categor':135 'challeng':55,213 'commit':128 'confirm':57 'connect':179 'contain':217 'content':185 'cost':44 'crawl':168 'data':4,16,31,106,202 'decim':80 'defi':105 'defi-data' 'detail':162 'discov':229 'doc':170 'document':163 'dozen':97 'empir':230 'endpoint':26,86,133 'exact':64,196 'exampl':160 'expect':207 'explicit':143 'field':223 'financ':109,137 'found':165 'gate':36 'homepag':147,149 'infer':108 'inform':221 'json':209 'json-api' 'key':122 'lido':1,13,28,131,218 'lido-apy' 'limit':125 'liquid staking yield' 'list':144,150 'live':58 'lowpaymentfee.com':40,94 'lowpaymentfee.com/api/v1/defi/lido/apy':39 'micropay':7,19 'mimetyp':215 'must':227 'name':224 'network':52 'offer':96 'openapi':157 'page':174 'paid':46 'part':88 'pay':100 'pay-per-cal':99 'pay-per-request' 'payment':65 'per':11,23,101,117 'platform':92 'price':114,171 'prompt':181 'rate':124 'render':176 'request':12,24,118 'request/response':159 'requir':67 'respons':193,210 'return':27,59,200 'sampl':192 'schema':158,190 'scheme':66 'servic':112 'shape':197 'sinc':76 'span':104 'specif':130 'specifi':214 'stETH yield' 'stake':29,219 'staking-yield' 'steth':2,14 'structur':226 'though':139 'unit':71 'unknown':204 'usd':75 'usdc':48,73,77 'usdc-base' 'use':78 'util':111 'via':5,17 'wallet':180 'web3':138 'x402':6,18,35,54,212 'x402-gated':34 'x402-payment' 'yield':220","prices":[{"id":"2bfbe97e-0539-41ff-9600-6faa4dc2c5f2","listingId":"e1e769b2-e547-49f8-8251-9b07afb3574f","amountUsd":null,"unit":"per_call","nativeCurrency":"USD COIN","nativeAmount":"20000","chain":"base","payTo":"0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3","paymentMethod":"x402-usd coin","isPrimary":true,"details":{"scheme":"exact","mime_type":"application/json","accepts_all":[{"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","extra":{"name":"USD Coin","version":"2"},"payTo":"0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3","scheme":"exact","network":"base","mimeType":"application/json","resource":"https://lowpaymentfee.com/api/v1/defi/lido/apy","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}],"asset_contract":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","max_timeout_seconds":300},"createdAt":"2026-04-19T12:29:45.179Z"}],"sources":[{"listingId":"e1e769b2-e547-49f8-8251-9b07afb3574f","source":"x402_bazaar","sourceId":"https://lowpaymentfee.com/api/v1/defi/lido/apy","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-19T12:29:45.179Z","lastSeenAt":"2026-04-22T18:32:55.438Z"}],"details":{"listingId":"e1e769b2-e547-49f8-8251-9b07afb3574f","quickStartSnippet":"curl -X POST https://lowpaymentfee.com/api/v1/defi/lido/apy \\\n  -H \"Content-Type: application/json\" \\\n  -H \"X-PAYMENT: <x402_payment_token>\"","exampleRequest":null,"exampleResponse":null,"schema":{"input":{"type":"http","method":"GET","discoverable":true}},"openapiUrl":null,"agentsTxtUrl":null,"citations":[{"claim":"The x402 challenge returns 402 with maxAmountRequired 20000 in USDC on Base network","source_url":"https://lowpaymentfee.com/api/v1/defi/lido/apy"},{"claim":"Platform pricing is $0.02 per request with no API keys, no rate limits, and no commitments","source_url":"https://lowpaymentfee.com"},{"claim":"USDC asset address 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 on Base","source_url":"https://lowpaymentfee.com/api/v1/defi/lido/apy"},{"claim":"Homepage lists Finance & Web3 APIs including price feeds, exchange rates, token quotes, and gas estimates but not the Lido APY endpoint","source_url":"https://lowpaymentfee.com"}],"useCases":["Fetching current Lido stETH staking APY for portfolio dashboards","Comparing DeFi yield rates across protocols programmatically","Feeding real-time staking yield data into trading or rebalancing agents","Monitoring Lido staking returns over time"],"bestFor":["AI agents needing on-demand Lido yield data without API key management","Developers building DeFi dashboards who want simple pay-per-call pricing","Automated strategies that need current staking APY for decision-making"],"notFor":["High-frequency polling where $0.02/request adds up quickly","Users who need historical APY time-series (no evidence this endpoint provides it)","Anyone requiring detailed Lido protocol analytics beyond APY"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-17T23:13:23.581Z"},"updatedAt":"2026-04-22T18:32:55.438Z"}}