Is there a DeFi API for yield data?

Yes. The API returns live and historical lending and staking yields from major DeFi protocols — Aave, Compound, Morpho, Spark and more — as typed JSON with per-rate freshness and source signals, covering 620+ assets without running your own indexers or subgraph queries.

Is there a CeFi API too?

Yes — the same one. Every response mixes on-chain protocols with centralized platforms like Nexo and Gemini in one normalized schema, across 55+ providers total, so you integrate one endpoint instead of a separate CeFi product.

Which DeFi protocols are covered?

Lending markets include Aave, Compound, Morpho, Spark, Fluid, Maple, Gearbox and Silo; staking includes liquid staking providers like Lido alongside validators and exchanges. Coverage follows where real yield lives and expands as protocols gain traction.

Can I get historical DeFi yields?

Yes. Historical rate series are available through the API for backtesting, trend charts and research, and the historical rates page shows the same data as a human-readable view.

Can AI agents use the DeFi yield API?

Yes. The REST API has a public OpenAPI spec and a free tier, and the same data layer is exposed as MCP tools — agents can connect via the hosted MCP endpoint or the @bitcompare/mcp-server npm package.

DeFi Yield API

The DeFi yield API with CeFi context built in.

Live and historical lending and staking yields from on-chain protocols — Aave, Compound, Morpho, Spark and more — normalized into the same typed schema as centralized platforms, with an OpenAPI spec and a free tier.

Get an API key View docs OpenAPI spec Full crypto yield API

CoverageLive

620
Assets covered: 56
Providers tracked: 42,276
Rates monitored: 31,177
Updates in 24h: 3m
Median refresh: 7s
Freshest provider

Schema

On-chain yields, normalized like everything else.

Protocol yields arrive in the same typed shape as every other rate — no per-protocol adapters, no subgraph wrangling, one integration.

Per-rate fields

Lending and staking rates per asset, per protocol or platform
One normalized JSON schema across every source — protocol or platform
Per-rate freshness timestamps and source signals
Historical rate series for backtesting and trend charts

Coverage

Major DeFi protocols including Aave, Compound, Morpho, Spark, Fluid and Maple
Liquid staking providers like Lido alongside validator and exchange staking
ETH, stablecoins and the long tail of yield-bearing assets

Live response — fetched from the public API at build time

// GET /api/v1/rates/ETH?category=lending
{
  "data": {
    "symbol": "ETH",
    "rates": [
      {
        "provider": "justlend",
        "symbol": "ETH",
        "category": "lending",
        "rate": 0.00051643,
        "metadata": null,
        "lastUpdated": "2026-08-15T07:30:56.842Z",
        "coinId": "ethereum",
        "providerSymbol": "ETH",
        "unitType": "percentage",
        "unitSymbol": "%",
        "ageSeconds": 5,
        "stale": false
      },
      {
        "provider": "bitfinex",
        "symbol": "ETH",
        "category": "lending",
        "rate": 0.3754,
        "metadata": null,
        "lastUpdated": "2026-08-15T07:30:54.491Z",
        "coinId": "ethereum",
        "providerSymbol": "ETH",
        "unitType": "percentage",
        "unitSymbol": "%",
        "ageSeconds": 7,
        "stale": false
      },
      {
        "provider": "youhodler",
        "symbol": "ETH",
        "category": "lending",
        "rate": 11,
        "metadata": null,
        "lastUpdated": "2026-08-15T07:30:41.662Z",
        "coinId": "ethereum",
        "providerSymbol": "ETH",
        "unitType": "percentage",
        "unitSymbol": "%",
        "ageSeconds": 20,
        "stale": false
      }
    ],
    "count": 17
  }
}

Read the docs Compare live lending rates Full crypto yield API

CeFi + DeFi

Stop stitching a DeFi source and a CeFi source together.

The same request that returns Aave and Compound returns Nexo and Gemini — one response, one schema, so on-chain and custodial yields arrive together instead of from two separate sources.

One call per asset returns on-chain protocols and centralized platforms together
Every source shares the same fields, so rows are directly comparable
Build side-by-side CeFi and DeFi views, spreads and alerts from a single feed

Compare staking rewards How rates are calculated

Live response — fetched from the public API at build time

// GET /api/v1/rates/ETH?category=staking
{
  "data": {
    "symbol": "ETH",
    "rates": [
      {
        "provider": "frax",
        "symbol": "ETH",
        "category": "staking",
        "rate": 2.61980066,
        "metadata": {
          "url": "https://api.frax.finance/v2/frxeth/summary/latest",
          "field": "sfrxethApr",
          "source": "multi_source"
        },
        "lastUpdated": "2026-08-15T07:30:55.572Z",
        "coinId": "ethereum",
        "providerSymbol": "ETH",
        "unitType": "percentage",
        "unitSymbol": "%",
        "ageSeconds": 2,
        "stale": false
      },
      {
        "provider": "etherfi",
        "symbol": "ETH",
        "category": "staking",
        "rate": 2.40226105,
        "metadata": {
          "mode": "erc4626_price_delta",
          "method": "getRate",
          "source": "onchain_rate",
          "chainId": 1,
          "contract": "0xCd5fE23C85820F7B72D0926FC9b05b43E359b7ee",
          "elapsedSeconds": 604802
        },
        "lastUpdated": "2026-08-15T07:30:53.113Z",
        "coinId": "ethereum",
        "providerSymbol": "ETH",
        "unitType": "percentage",
        "unitSymbol": "%",
        "ageSeconds": 5,
        "stale": false
      },
      {
        "provider": "stakewise",
        "symbol": "ETH",
        "category": "staking",
        "rate": 2.257804,
        "metadata": null,
        "lastUpdated": "2026-08-15T07:30:41.707Z",
        "coinId": "ethereum",
        "providerSymbol": "ETH",
        "unitType": "percentage",
        "unitSymbol": "%",
        "ageSeconds": 16,
        "stale": false
      }
    ],
    "count": 11
  }
}

FAQ

Frequently asked questions

Is there a DeFi API for yield data?: Yes. The API returns live and historical lending and staking yields from major DeFi protocols — Aave, Compound, Morpho, Spark and more — as typed JSON with per-rate freshness and source signals, covering 620+ assets without running your own indexers or subgraph queries.
Is there a CeFi API too?: Yes — the same one. Every response mixes on-chain protocols with centralized platforms like Nexo and Gemini in one normalized schema, across 55+ providers total, so you integrate one endpoint instead of a separate CeFi product.
Which DeFi protocols are covered?: Lending markets include Aave, Compound, Morpho, Spark, Fluid, Maple, Gearbox and Silo; staking includes liquid staking providers like Lido alongside validators and exchanges. Coverage follows where real yield lives and expands as protocols gain traction.
Can I get historical DeFi yields?: Yes. Historical rate series are available through the API for backtesting, trend charts and research, and the historical rates page shows the same data as a human-readable view.
Can AI agents use the DeFi yield API?: Yes. The REST API has a public OpenAPI spec and a free tier, and the same data layer is exposed as MCP tools — agents can connect via the hosted MCP endpoint or the @bitcompare/mcp-server npm package.

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