DeFi yield screener

Screen DeFi yield pools (lending, LP, staking, vaults) across every chain from DefiLlama's free Yields dataset: filter by chain, project, token symbol, stablecoin-only, minimum TVL and minimum/maximum APY; sort by apy or tvl; limit up to 100. Each row carries pool id, project, chain, symbol, TVL, total/base/reward APY, 1d/7d/30d APY change, 30d mean APY, IL risk, exposure (single/multi), reward tokens and DefiLlama's outlier flag. The ~11MB upstream document is fetched once per 5 minutes and served from an in-process cache, so answers are bounded and fast. Keyless public data.

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Input

Example output

{
  "source": "defillama-yields",
  "fetchedAt": "2026-08-22T12:00:00.000Z",
  "cached": true,
  "filters": {
    "chain": "Base",
    "project": null,
    "symbol": null,
    "stablecoinOnly": true,
    "minTvlUsd": 1000000,
    "minApy": null,
    "maxApy": null,
    "exposure": null,
    "excludeOutliers": true
  },
  "sort": "apy",
  "matched": 42,
  "count": 1,
  "pools": [
    {
      "pool": "54e9b138-3146-4c1f-8dce-1cb948f5ef96",
      "chain": "Base",
      "project": "morpho-v1",
      "symbol": "USDC",
      "tvlUsd": 25000000,
      "apy": 6.1,
      "apyBase": 4.9,
      "apyReward": 1.2,
      "apyPct1D": -0.04,
      "apyPct7D": 0.5,
      "apyPct30D": -0.05,
      "apyMean30d": 5.8,
      "stablecoin": true,
      "ilRisk": "no",
      "exposure": "single",
      "poolMeta": null,
      "rewardTokens": [],
      "underlyingTokens": [
        "0x8335..."
      ],
      "volumeUsd1d": null,
      "volumeUsd7d": null,
      "outlier": false,
      "prediction": {
        "class": "Stable/Up",
        "probability": 67
      }
    }
  ]
}

Try it - see the 402 challenge (free)

curl -i -X POST https://agent402.tools/api/defi-yields \
  -H "Content-Type: application/json" \
  -d '{"chain":"Base","stablecoinOnly":true,"minTvlUsd":1000000,"sort":"apy","limit":5}'

The response is HTTP 402 Payment Required with exact payment requirements. Any x402 v2 client pays automatically and retries:

Paid call (JavaScript agent)

import { wrapFetchWithPayment } from "@x402/fetch";
import { x402Client } from "@x402/core/client";
import { registerExactEvmScheme } from "@x402/evm/exact/client";
import { privateKeyToAccount } from "viem/accounts";

const client = new x402Client();
registerExactEvmScheme(client, { signer: privateKeyToAccount(KEY) });
const payFetch = wrapFetchWithPayment(fetch, client);

const res = await payFetch("https://agent402.tools/api/defi-yields", {
  method: "POST",
  headers: { "Content-Type": "application/json" },
  body: JSON.stringify({
    "chain": "Base",
    "stablecoinOnly": true,
    "minTvlUsd": 1000000,
    "sort": "apy",
    "limit": 5
  }),
});

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