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mirrored listing x402 eip155:196eip155:8453eip155:1eip155:137eip155:42161

Query real-time stablecoin supply yield pools from Barker's index of 500+ DeFi protocols

Query real-time stablecoin supply yield pools from Barker's index of 500+ DeFi protocols. Returns ranked rows with protocol_name, chain_name, asset_symbol, supply_apy_total (decimal — multiply by 100 for %), and supply_tvl (USD). Use for questions like 'best stablecoin yield', 'where to earn on USDC', 'compare lending rates', '稳定币利率'.

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1000 (raw units)
price
45
calls / 30d
4
unique payers
2026-09-18
updated

Provider

mcp.barker.money · discovered, not yet claimed by its owner

Payment (x402 accepts[])

[
  {
    "scheme": "exact",
    "network": "eip155:196",
    "payTo": "0x83f15f5bea445109e255ab82622fbdfecd1e4c9f",
    "asset": "0x779ded0c9e1022225f8e0630b35a9b54be713736",
    "amount": "1000",
    "maxTimeoutSeconds": 300
  },
  {
    "scheme": "aggr_deferred",
    "network": "eip155:196",
    "payTo": "0x83f15f5bea445109e255ab82622fbdfecd1e4c9f",
    "asset": "0x779ded0c9e1022225f8e0630b35a9b54be713736",
    "amount": "1000",
    "maxTimeoutSeconds": 300
  },
  {
    "scheme": "exact",
    "network": "eip155:8453",
    "payTo": "0x83f15f5bea445109e255ab82622fbdfecd1e4c9f",
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "amount": "1000",
    "maxTimeoutSeconds": 300
  },
  {
    "scheme": "exact",
    "network": "eip155:1",
    "payTo": "0x83f15f5bea445109e255ab82622fbdfecd1e4c9f",
    "asset": "0xA0b86991c6218b36c1d19D4a2e9Eb0cE3606eB48",
    "amount": "1000",
    "maxTimeoutSeconds": 300
  },
  {
    "scheme": "exact",
    "network": "eip155:137",
    "payTo": "0x83f15f5bea445109e255ab82622fbdfecd1e4c9f",
    "asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
    "amount": "1000",
    "maxTimeoutSeconds": 300
  },
  {
    "scheme": "exact",
    "network": "eip155:42161",
    "payTo": "0x83f15f5bea445109e255ab82622fbdfecd1e4c9f",
    "asset": "0xaf88d065e77c8cC2239327C5EDb3A432268e5831",
    "amount": "1000",
    "maxTimeoutSeconds": 300
  }
]

Output schema

{
  "bazaar": {
    "info": {
      "input": {
        "method": "GET",
        "queryParams": {
          "asset": "usdc",
          "chain": "base",
          "limit": 10,
          "sort": "apy"
        },
        "type": "http"
      },
      "output": {
        "example": {
          "data": [
            {
              "asset_symbol": "USDC",
              "chain_name": "ethereum",
              "pool_uid": "aave-v3_ethereum_usdc_supply",
              "protocol_name": "Aave V3",
              "supply_apy_total": 0.0523,
              "supply_tvl": 1234567890
            }
          ],
          "success": true
        },
        "type": "json"
      }
    },
    "schema": {
      "$schema": "https://json-schema.org/draft/2020-12/schema",
      "properties": {
        "input": {
          "additionalProperties": false,
          "properties": {
            "method": {
              "enum": [
                "GET"
              ],
              "type": "string"
            },
            "queryParams": {
              "properties": {
                "asset": {
                  "description": "Stablecoin symbol (lowercase): usdt, usdc, dai, usde, usds, fdusd, gho, crvusd, pyusd, sdai, frxusd, tusd, lusd, dola, etc.",
                  "type": "string"
                },
                "chain": {
                  "description": "Chain name (lowercase): ethereum, bsc, arbitrum, base, polygon, optimism, avalanche, solana, etc.",
                  "type": "string"
                },
                "limit": {
                  "description": "Row count (default 50, max 100)",
                  "maximum": 100,
                  "minimum": 1,
                  "type": "integer"
                },
                "sort": {
                  "description": "Sort key",
                  "enum": [
                    "apy",
                    "tvl"
                  ],
                  "type": "string"
                }
              },
              "type": "object"
            },
            "type": {
              "const": "http",
              "type": "string"
            }
          },
          "required": [
            "type",
            "method"
          ],
          "type": "object"
        },
        "output": {
          "properties": {
            "example": {
              "type": "object"
            },
            "type": {
              "type": "string"
            }
          },
          "required": [
            "type"
          ],
          "type": "object"
        }
      },
      "required": [
        "input"
      ],
      "type": "object"
    }
  }
}

Use it

curl

curl "https://mcp.barker.money/barker_defi_vaults"
# -> 402 Payment Required, accepts[] lists how to pay
# retry with a PAYMENT-SIGNATURE (or PAYMENT header) once paid

JavaScript

const res = await fetch("https://mcp.barker.money/barker_defi_vaults");
if (res.status === 402) {
  const { accepts } = await res.json();
  // pay one of accepts[] via an x402 client, then retry with the payment header
}

Python

import httpx
res = httpx.get("https://mcp.barker.money/barker_defi_vaults")
if res.status_code == 402:
    accepts = res.json()["accepts"]
    # pay one of accepts[] via an x402 client, then retry with the payment header

Machine-readable

Everything on this page is also available as clean JSON at /resources/4017.json, and this resource appears in /discovery/resources and /discovery/search.