{"id":"c7ddc286-a763-43af-b86b-01e802b404cf","shortId":"fHB44g","kind":"x402","title":"MakerDAO APY data via x402 micropayment on Base — $0.02 per request, no API key needed.","tagline":"MakerDAO APY data via x402 micropayment on Base — $0.02 per request, no API key needed.","description":"This endpoint returns MakerDAO APY (annual percentage yield) data from the DeFi protocol, accessible at `https://lowpaymentfee.com/api/v1/defi/makerdao/apy`. It is part of a broader suite of pay-per-call APIs offered by lowpaymentfee.com, covering data analytics, AI/ML inference, finance/Web3, and utility services. All endpoints on the platform use the x402 payment protocol, settling in USDC on the Base network.\n\nPricing is $0.02 per request (the x402 challenge advertises a maxAmountRequired of 20,000 base units of USDC, which has 6 decimals, equaling $0.02). There are no API keys, no rate limits, and no minimum commitments — callers simply attach an x402 payment header to each request. The endpoint accepts POST requests and returns `application/json` responses.\n\nNote that while the endpoint is confirmed live (returns a valid 402 challenge), the specific MakerDAO APY endpoint (`/api/v1/defi/makerdao/apy`) is not listed on the provider's landing page among the advertised API catalog. Documentation beyond the landing page is effectively empty (all doc/pricing/README pages only show a \"Connect wallet\" prompt). The exact response schema and request body format are not documented, so the output structure must be inferred from the endpoint name — it likely returns current MakerDAO savings rate or vault APY figures.","tags":[],"capabilities":["defi-apy-data","makerdao","x402-payment","usdc-base","pay-per-request","no-api-key","json-response"],"categories":["defi","finance"],"synonyms":["MakerDAO yield","MakerDAO savings rate","DSR APY","DeFi interest rate","MakerDAO DAI savings rate","MakerDAO vault APY","DeFi yield data"],"warnings":["The /api/v1/defi/makerdao/apy endpoint is not listed among the provider's advertised APIs on the landing page — it may be unlisted or experimental.","No response schema or example output is available; the exact data returned is unknown.","All documentation, pricing, and README pages are empty (only show 'Connect wallet'), so there is no official usage guide.","Request body format is undocumented — it is unclear whether a POST body is required or what parameters are accepted."],"endpointUrl":"https://lowpaymentfee.com/api/v1/defi/makerdao/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/makerdao/apy","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}]},"qualityScore":"0.400","qualityRationale":"The endpoint is confirmed live via a valid x402 402 challenge, and pricing is clear ($0.02/request in USDC on Base). However, there is no OpenAPI schema, no documented request/response format, no examples, and the specific MakerDAO APY endpoint isn't even listed on the provider's own landing page. All documentation pages beyond the homepage are empty 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'0.02':9,24,93,114 '000':104 '20':103 '402':157 '6':111 'DSR APY' 'DeFi interest rate' 'DeFi yield data' 'MakerDAO DAI savings rate' 'MakerDAO savings rate' 'MakerDAO vault APY' 'MakerDAO yield' 'accept':139 'access':44 'advertis':99,176 'ai/ml':68 'among':174 'analyt':67 'annual':36 'api':2,13,17,28,35,61,118,162,177,227 'application/json':144 'attach':129 'base':8,23,89,105 'beyond':180 'bodi':202 'broader':54 'call':60 'caller':127 'catalog':178 'challeng':98,158 'commit':126 'confirm':152 'connect':193 'cover':65 'current':221 'data':3,18,39,66 'decim':112 'defi':42 'defi-apy-data' 'doc/pricing/readme':188 'document':179,206 'effect':185 'empti':186 'endpoint':32,75,138,150,163,216 'equal':113 'exact':197 'figur':228 'finance/web3':70 'format':203 'header':133 'infer':69,213 'json-response' 'key':14,29,119 'land':172,182 'like':219 'limit':122 'list':167 'live':153 'lowpaymentfee.com':47,64 'lowpaymentfee.com/api/v1/defi/makerdao/apy':46 'makerdao':1,16,34,161,222 'maxamountrequir':101 'micropay':6,21 'minimum':125 'must':211 'name':217 'need':15,30 'network':90 'no-api-key' 'note':146 'offer':62 'output':209 'page':173,183,189 'part':51 'pay':58 'pay-per-cal':57 'pay-per-request' 'payment':82,132 'per':10,25,59,94 'percentag':37 'platform':78 'post':140 'price':91 'prompt':195 'protocol':43,83 'provid':170 'rate':121,224 'request':11,26,95,136,141,201 'respons':145,198 'return':33,143,154,220 'save':223 'schema':199 'servic':73 'settl':84 'show':191 'simpli':128 'specif':160 'structur':210 'suit':55 'unit':106 'usdc':86,108 'usdc-base' 'use':79 'util':72 'valid':156 'vault':226 'via':4,19 'wallet':194 'x402':5,20,81,97,131 'x402-payment' 'yield':38","prices":[{"id":"75d680d7-1958-4790-8d26-4261418e8084","listingId":"c7ddc286-a763-43af-b86b-01e802b404cf","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/makerdao/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":"2026-04-19T12:29:46.333Z"}],"sources":[{"listingId":"c7ddc286-a763-43af-b86b-01e802b404cf","source":"x402_bazaar","sourceId":"https://lowpaymentfee.com/api/v1/defi/makerdao/apy","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-19T12:29:46.333Z","lastSeenAt":"2026-04-22T18:04:45.588Z"}],"details":{"listingId":"c7ddc286-a763-43af-b86b-01e802b404cf","quickStartSnippet":"curl -X POST https://lowpaymentfee.com/api/v1/defi/makerdao/apy \\\n  -H \"Content-Type: application/json\" \\\n  -H \"X-PAYMENT: <x402_payment_token>\"","exampleRequest":{"url":"https://lowpaymentfee.com/api/v1/defi/makerdao/apy","method":"POST","headers":{"X-PAYMENT":"<x402_payment_token>","Content-Type":"application/json"}},"exampleResponse":null,"schema":{"input":{"type":"http","method":"GET","discoverable":true}},"openapiUrl":null,"agentsTxtUrl":null,"citations":[{"claim":"Pricing is $0.02 per request with no API keys, no rate limits, and instant access on Base network.","source_url":"https://lowpaymentfee.com"},{"claim":"x402 challenge returns maxAmountRequired of 20000 base units of USDC (asset 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913) on Base network.","source_url":"https://lowpaymentfee.com/api/v1/defi/makerdao/apy"},{"claim":"The endpoint accepts POST requests and returns application/json.","source_url":"https://lowpaymentfee.com/api/v1/defi/makerdao/apy"}],"useCases":["Fetching current MakerDAO APY for DeFi dashboards or portfolio trackers","Comparing DeFi protocol yields programmatically","Automated agents monitoring savings rate changes in MakerDAO","Integrating real-time DeFi rate data into trading bots"],"bestFor":["Developers building DeFi aggregators who need MakerDAO rate data","AI agents that need on-demand DeFi yield information without managing API keys","Low-volume consumers who prefer pay-per-call over subscription pricing"],"notFor":["Users needing historical time-series APY data (no evidence this is supported)","High-frequency polling where $0.02/request cost would accumulate significantly","Anyone requiring detailed MakerDAO vault-level or collateral-specific data (response schema unknown)"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-17T23:13:23.502Z"},"updatedAt":"2026-04-22T18:04:45.588Z"}}