# Sky (MakerDAO) Savings Rate & Protocol API > 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. ## Authentication All requests require your oanor API key in the `x-oanor-key` header. Get one at https://www.oanor.com/developer/keys. ```bash curl -H "x-oanor-key: oanor_live_…" "https://api.oanor.com/sky-api/..." ``` ## Pricing - **Free** (Free) — 12,500 calls/Mo, 3 req/s - **Starter** ($9/Mo) — 185,000 calls/Mo, 10 req/s - **Pro** ($26/Mo) — 790,000 calls/Mo, 28 req/s - **Scale** ($59/Mo) — 2,850,000 calls/Mo, 60 req/s ## Endpoints ### Overview #### `GET /v1/overview` — Latest Sky ecosystem snapshot **Example:** ```bash curl -H "x-oanor-key: $KEY" \ "https://api.oanor.com/sky-api/v1/overview" ``` **Response:** ```json { "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 } ``` ### Savings #### `GET /v1/savings` — Current SSR and DSR savings rates **Example:** ```bash curl -H "x-oanor-key: $KEY" \ "https://api.oanor.com/sky-api/v1/savings" ``` **Response:** ```json { "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 } ``` ### History #### `GET /v1/history` — Daily savings-rate timeline **Parameters:** - `limit` (query, optional, string) — Days back (default 30, max 365) Example: `30` **Example:** ```bash curl -H "x-oanor-key: $KEY" \ "https://api.oanor.com/sky-api/v1/history?limit=30" ``` **Response:** ```json { "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, …(truncated, see openapi.json for full schema) ``` ### Meta #### `GET /v1/meta` — Service metadata **Example:** ```bash curl -H "x-oanor-key: $KEY" \ "https://api.oanor.com/sky-api/v1/meta" ``` **Response:** ```json { "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 …(truncated, see openapi.json for full schema) ``` --- Marketplace page: https://www.oanor.com/api/sky-api OpenAPI spec: https://www.oanor.com/api/sky-api/openapi.json