{"openapi":"3.1.0","info":{"title":"Sky (MakerDAO) Savings Rate & Protocol API","version":"1.0.0","description":"Live protocol stats from Sky, the decentralized stablecoin protocol formerly known as MakerDAO and the issuer of the USDS and DAI stablecoins — no key, nothing stored. This is the Sky-protocol view: the Sky Savings Rate (SSR) and DAI Savings Rate (DSR), the value locked in savings, the SKY staking yield and the overall ecosystem size, distinct from the generic DeFi-TVL, yields and lending APIs in the catalogue. The overview endpoint returns the latest ecosystem snapshot — the Sky Savings Rate APY, the savings TVL, the SKY staking APY, the farm APY, the total reward TVL, the whole-ecosystem TVL, the wallet count and the number of savings depositors. The savings endpoint returns the current savings rates: the live SSR and DSR and the dollar value deposited in each. The history endpoint returns the savings-rate timeline — per-day SSR, DSR and deposited totals — so you can chart how the on-chain risk-free rate has moved. Build DeFi yield dashboards, stablecoin-savings widgets, rate-comparison tools and treasury bots on top of the dominant decentralized stablecoin protocol. SSR and DSR are the on-chain savings benchmarks for USDS and DAI; rates are returned as percentages.","contact":{"name":"PremiumApi","url":"https://www.oanor.com/by/premiumapi"}},"servers":[{"url":"https://api.oanor.com/sky-api","description":"oanor gateway"}],"tags":[{"name":"Overview"},{"name":"Savings"},{"name":"History"},{"name":"Meta"}],"components":{"securitySchemes":{"oanorKey":{"type":"apiKey","in":"header","name":"x-oanor-key","description":"Get your key at https://www.oanor.com/developer/keys"}}},"security":[{"oanorKey":[]}],"paths":{"/v1/overview":{"get":{"operationId":"get_v1_overview","tags":["Overview"],"summary":"Latest Sky ecosystem snapshot","description":"","parameters":[],"security":[{"oanorKey":[]}],"responses":{"200":{"description":"OK","content":{"application/json":{"example":{"data":{"source":"BlockAnalitica (Sky)","protocol":"Sky (MakerDAO)","farm_apy_pct":0,"wallet_count":749842,"ecosystem_tvl_usd":20862012856.14,"sky_staking_apy_pct":5.7387,"ssr_depositor_count":5707,"total_reward_tvl_usd":624857282.8,"sky_savings_rate_apy_pct":3.6,"sky_savings_rate_tvl_usd":6118919137.29},"meta":{"timestamp":"2026-06-12T01:42:32.040Z","request_id":"66540bbc-36b8-423b-a843-e5eb3f44e5d9"},"status":"ok","message":"Overview retrieved successfully","success":true}}}},"401":{"description":"Missing or invalid x-oanor-key header"},"402":{"description":"Active subscription required"},"429":{"description":"Rate-limit or monthly quota reached"},"502":{"description":"Upstream did not respond"}}}},"/v1/savings":{"get":{"operationId":"get_v1_savings","tags":["Savings"],"summary":"Current SSR and DSR savings rates","description":"","parameters":[],"security":[{"oanorKey":[]}],"responses":{"200":{"description":"OK","content":{"application/json":{"example":{"data":{"date":"2026-06-12","source":"BlockAnalitica (Sky)","protocol":"Sky (MakerDAO)","dsr_rate_pct":1.25,"ssr_rate_pct":3.6,"total_in_dsr_usd":219352958.17,"total_in_ssr_usd":6118225057.44,"total_savings_usd":6337578015.6},"meta":{"timestamp":"2026-06-12T01:42:32.329Z","request_id":"7ba7a5cf-7469-425b-a6b4-c21b86739d25"},"status":"ok","message":"Savings retrieved successfully","success":true}}}},"401":{"description":"Missing or invalid x-oanor-key header"},"402":{"description":"Active subscription required"},"429":{"description":"Rate-limit or monthly quota reached"},"502":{"description":"Upstream did not respond"}}}},"/v1/history":{"get":{"operationId":"get_v1_history","tags":["History"],"summary":"Daily savings-rate timeline","description":"","parameters":[{"name":"limit","in":"query","required":false,"description":"Days back (default 30, max 365)","schema":{"type":"string"},"example":"30"}],"security":[{"oanorKey":[]}],"responses":{"200":{"description":"OK","content":{"application/json":{"example":{"data":{"count":30,"source":"BlockAnalitica (Sky)","history":[{"date":"2026-05-14","dsr_rate_pct":1.25,"ssr_rate_pct":3.65,"total_in_dsr_usd":239183821.88,"total_in_ssr_usd":5650760410.47},{"date":"2026-05-15","dsr_rate_pct":1.25,"ssr_rate_pct":3.65,"total_in_dsr_usd":238611659.6,"total_in_ssr_usd":5759470844.81},{"date":"2026-05-16","dsr_rate_pct":1.25,"ssr_rate_pct":3.65,"total_in_dsr_usd":238828658.09,"total_in_ssr_usd":5759716930.1},{"date":"2026-05-17","dsr_rate_pct":1.25,"ssr_rate_pct":3.65,"total_in_dsr_usd":237441938.8,"total_in_ssr_usd":5757793726.31},{"date":"2026-05-18","dsr_rate_pct":1.25,"ssr_rate_pct":3.65,"total_in_dsr_usd":236554151.23,"total_in_ssr_usd":5942211436.72},{"date":"2026-05-19","dsr_rate_pct":1.25,"ssr_rate_pct":3.65,"total_in_dsr_usd":236277037.21,"total_in_ssr_usd":6191921549.12},{"date":"2026-05-20","dsr_rate_pct":1.25,"ssr_rate_pct":3.65,"total_in_dsr_usd":235965906.11,"total_in_ssr_usd":5826755272.83},{"date":"2026-05-21","dsr_rate_pct":1.25,"ssr_rate_pct":3.65,"total_in_dsr_usd":235352464.64,"total_in_ssr_usd":5677575004.83},{"date":"2026-05-22","dsr_rate_pct":1.25,"ssr_rate_pct":3.65,"total_in_dsr_usd":233935532.39,"total_in_ssr_usd":5942420952.91},{"date":"2026-05-23","dsr_rate_pct":1.25,"ssr_rate_pct":3.65,"total_in_dsr_usd":233292932.96,"total_in_ssr_usd":6241228283.24},{"date":"2026-05-24","dsr_rate_pct":1.25,"ssr_rate_pct":3.65,"total_in_dsr_usd":232993763.52,"total_in_ssr_usd":5932069144.02},{"date":"2026-05-25","dsr_rate_pct":1.25,"ssr_rate_pct":3.65,"total_in_dsr_usd":232985904.47,"total_in_ssr_usd":6204833763.5},{"date":"2026-05-26","dsr_rate_pct":1.25,"ssr_rate_pct":3.6,"total_in_dsr_usd":232823819.56,"total_in_ssr_usd":6221546501.52},{"date":"2026-05-27","dsr_rate_pct":1.25,"ssr_rate_pct":3.6,"total_in_dsr_usd":230784067.8,"total_in_ssr_usd":5839719499.36},{"date":"2026-05-28","dsr_rate_pct":1.25,"ssr_rate_pct":3.6,"total_in_dsr_usd":230761106.26,"total_in_ssr_usd":6203458403.34},{"date":"2026-05-29","dsr_rate_pct":1.25,"ssr_rate_pct":3.6,"total_in_dsr_usd":220635156,"total_in_ssr_usd":5888633171.16},{"date":"2026-05-30","dsr_rate_pct":1.25,"ssr_rate_pct":3.6,"total_in_dsr_usd":220660327.58,"total_in_ssr_usd":5882287517.06},{"date":"2026-05-31","dsr_rate_pct":1.25,"ssr_rate_pct":3.6,"total_in_dsr_usd":220307884.92,"total_in_ssr_usd":6178730213.43},{"date":"2026-06-01","dsr_rate_pct":1.25,"ssr_rate_pct":3.6,"total_in_dsr_usd":220322526.76,"total_in_ssr_usd":5853773560.98},{"date":"2026-06-02","dsr_rate_pct":1.25,"ssr_rate_pct":3.6,"total_in_dsr_usd":219921971.4,"total_in_ssr_usd":6108342136.24},{"date":"2026-06-03","dsr_rate_pct":1.25,"ssr_rate_pct":3.6,"total_in_dsr_usd":219706604.86,"total_in_ssr_usd":6135034456.63},{"date":"2026-06-04","dsr_rate_pct":1.25,"ssr_rate_pct":3.6,"total_in_dsr_usd":219687778.87,"total_in_ssr_usd":6330137652.14},{"date":"2026-06-05","dsr_rate_pct":1.25,"ssr_rate_pct":3.6,"total_in_dsr_usd":219926872.6,"total_in_ssr_usd":6295290005.9},{"date":"2026-06-06","dsr_rate_pct":1.25,"ssr_rate_pct":3.6,"total_in_dsr_usd":219854756.41,"total_in_ssr_usd":6302528278.78},{"date":"2026-06-07","dsr_rate_pct":1.25,"ssr_rate_pct":3.6,"total_in_dsr_usd":220042943.44,"total_in_ssr_usd":6261147114.8},{"date":"2026-06-08","dsr_rate_pct":1.25,"ssr_rate_pct":3.6,"total_in_dsr_usd":219420975.6,"total_in_ssr_usd":6206465502.1},{"date":"2026-06-09","dsr_rate_pct":1.25,"ssr_rate_pct":3.6,"total_in_dsr_usd":218992728.99,"total_in_ssr_usd":6186138921.02},{"date":"2026-06-10","dsr_rate_pct":1.25,"ssr_rate_pct":3.6,"total_in_dsr_usd":219253960.72,"total_in_ssr_usd":6165416981.39},{"date":"2026-06-11","dsr_rate_pct":1.25,"ssr_rate_pct":3.6,"total_in_dsr_usd":219352958.17,"total_in_ssr_usd":6118075392.65},{"date":"2026-06-12","dsr_rate_pct":1.25,"ssr_rate_pct":3.6,"total_in_dsr_usd":219352958.17,"total_in_ssr_usd":6118225057.44}],"protocol":"Sky (MakerDAO)"},"meta":{"timestamp":"2026-06-12T01:42:32.419Z","request_id":"81b54425-d11b-4758-bc6e-4bd2c27abf92"},"status":"ok","message":"History retrieved successfully","success":true}}}},"401":{"description":"Missing or invalid x-oanor-key header"},"402":{"description":"Active subscription required"},"429":{"description":"Rate-limit or monthly quota reached"},"502":{"description":"Upstream did not respond"}}}},"/v1/meta":{"get":{"operationId":"get_v1_meta","tags":["Meta"],"summary":"Service metadata","description":"","parameters":[],"security":[{"oanorKey":[]}],"responses":{"200":{"description":"OK","content":{"application/json":{"example":{"data":{"note":"SSR is the Sky Savings Rate (on USDS); DSR is the DAI Savings Rate. Rates are returned as percentages. The history endpoint returns the daily savings-rate series, oldest to newest.","source":"BlockAnalitica Sky analytics (info-sky.blockanalitica.com/api/v1, live)","service":"sky-api","endpoints":{"GET /v1/meta":"This document.","GET /v1/history":"Daily savings-rate timeline (limit=30, max 365).","GET /v1/savings":"Current savings rates — live SSR and DSR and the value deposited in each.","GET /v1/overview":"Latest Sky ecosystem snapshot — SSR APY, savings TVL, SKY staking APY, ecosystem TVL, wallets."},"description":"Live protocol stats from Sky, the decentralized stablecoin protocol formerly known as MakerDAO (issuer of USDS/DAI). The Sky-protocol view — the Sky Savings Rate (SSR) and DAI Savings Rate (DSR), the value locked in savings, the SKY staking yield and the overall ecosystem size. overview = the latest ecosystem snapshot (Sky Savings Rate APY, savings TVL, SKY staking APY, farm APY, total reward TVL, ecosystem TVL, wallet count, savings depositor count); savings = the current savings rates (live SSR and DSR and the value deposited in each); history = the savings-rate timeline (per-day SSR, DSR and deposited totals). Live, no key, nothing stored. Distinct from the generic DeFi-TVL, yields and lending APIs.","upstream_status":"ok","current_ssr_apy_pct":3.6},"meta":{"timestamp":"2026-06-12T01:42:32.504Z","request_id":"69b8af12-722d-44ac-baf5-7961fa9b7e48"},"status":"ok","message":"Meta","success":true}}}},"401":{"description":"Missing or invalid x-oanor-key header"},"402":{"description":"Active subscription required"},"429":{"description":"Rate-limit or monthly quota reached"},"502":{"description":"Upstream did not respond"}}}}},"x-oanor-pricing":[{"slug":"free","name":"Free","price_cents_month":0,"monthly_call_quota":12500,"rps_limit":3,"hard_limit":true},{"slug":"starter","name":"Starter","price_cents_month":880,"monthly_call_quota":185000,"rps_limit":10,"hard_limit":true},{"slug":"pro","name":"Pro","price_cents_month":2620,"monthly_call_quota":790000,"rps_limit":28,"hard_limit":true},{"slug":"scale","name":"Scale","price_cents_month":5920,"monthly_call_quota":2850000,"rps_limit":60,"hard_limit":true}],"x-oanor-marketplace-url":"https://www.oanor.com/api/sky-api"}