Defi Yields

{
  "filter": {
    "min_tvl_usd": 5000000,
    "network": "todas",
    "project": null,
    "token": "USDC"
  },
  "found": 130,
  "note": "Annual APY estimated by DefiLlama from on-chain data. Not a guarantee or a recommendation.",
  "pools": [
    {
      "apy_base_pct": 29.18,
      "apy_change_7d": 29.18,
      "apy_forecast": "Down",
      "apy_pct": 29.18,
      "avg_apy_30d_pct": 6.28,
      "exposure": "single asset",
      "id": "7081d7c4-d0df-4c68-adce-2bb210cd25e8",
      "impermanent_loss_risk": "no",
      "link": "https://defillama.com/yields/pool/7081d7c4-d0df-4c68-adce-2bb210cd25e8",
      "network": "Ethereum",
      "pair": "SRROYUSDC",
      "project": "concrete",
      "rewards_apy_pct": null,
      "stable": true,
      "tvl_usd": 9090920,
      "volume_24h_usd": null
    },
    {
      "apy_base_pct": 18.89,
      "apy_change_7d": -1.99,
      "apy_forecast": "Down",
      "apy_pct": 18.89,
      "avg_apy_30d_pct": 16.59,
      "exposure": "single asset",
      "id": "ae3397ed-1f0f-4aa4-ab62-44413ea8cd9e",
      "impermanent_loss_risk": "no",
      "link": "https://defillama.com/yields/pool/ae3397ed-1f0f-4aa4-ab62-44413ea8cd9e",
      "network": "Base",
      "pair": "USDC",
      "project": "veranta",
      "rewards_apy_pct": null,
      "stable": true,
      "tvl_usd": 9558346,
      "volume_24h_usd": null
    }
  ],
  "source": "DefiLlama (open data, yields.llama.fi)",
  "warnings": []
}

# bash or zsh: see the payment challenge. Nothing is charged.
curl -sS -g -i -X POST 'https://api.vextorium.com/v1/defi-yields' \
  -H 'content-type: application/json' \
  --data-raw '{"limit":4,"min_tvl":5000000,"single_asset_only":true,"stablecoins_only":true,"token":"USDC"}'

# x402 v2 sends the challenge base64-encoded in the PAYMENT-REQUIRED header (v1 sends it in the body).
# To read the header:
curl -sS -g -o /dev/null -D - -X POST 'https://api.vextorium.com/v1/defi-yields' \
  -H 'content-type: application/json' \
  --data-raw '{"limit":4,"min_tvl":5000000,"single_asset_only":true,"stablecoins_only":true,"token":"USDC"}' \
  | grep -i '^payment-required:' | cut -d' ' -f2 | tr -d '\r' | base64 --decode

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

// Pays at most $0.012 per call.
const client = new x402Client().setSpendControls({ maxAmountPerPayment: "$0.012" });
registerExactEvmScheme(client, { signer: privateKeyToAccount(process.env.EVM_PRIVATE_KEY) });
const pay = wrapFetchWithPayment(fetch, client);

// Not sure it's safe to pay? ToolVet checks it first for $0.005. Pay for that from a separate
// client: this one is capped at $0.012 per payment. GET https://toolvet.app/api/v1/check?url=https%3A%2F%2Fapi.vextorium.com%2Fv1%2Fdefi-yields&method=POST
const res = await pay("https://api.vextorium.com/v1/defi-yields", {
  method: "POST",
  headers: { "content-type": "application/json" },
  body: JSON.stringify({
    "limit": 4,
    "min_tvl": 5000000,
    "single_asset_only": true,
    "stablecoins_only": true,
    "token": "USDC"
  }),
});
console.log(res.status, await res.text());

# pip install "x402[requests,evm]"
import os
from eth_account import Account
from x402 import x402ClientSync
from x402.http.clients import x402_requests
from x402.mechanisms.evm import EthAccountSigner
from x402.mechanisms.evm.exact.register import register_exact_evm_client

# Pays at most $0.012 per call.
client = x402ClientSync().set_spend_controls({"max_amount_per_payment": "$0.012"})
register_exact_evm_client(client, EthAccountSigner(Account.from_key(os.environ["EVM_PRIVATE_KEY"])))

with x402_requests(client) as session:
    res = session.post(
        "https://api.vextorium.com/v1/defi-yields",
        json={
            "limit": 4,
            "min_tvl": 5000000,
            "single_asset_only": True,
            "stablecoins_only": True,
            "token": "USDC",
        },
    )
    print(res.status_code, res.text)