{
  "x402Version": 2,
  "id": 4017,
  "slug": "4017",
  "resource": "https://mcp.barker.money/barker_defi_vaults",
  "description": "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'.",
  "type": "http",
  "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
    }
  ],
  "outputSchema": {
    "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"
      }
    }
  },
  "tags": [
    "bazaar"
  ],
  "sourceHost": "mcp.barker.money",
  "lastUpdated": "2026-09-18T08:00:07.98Z",
  "quality": {
    "calls30d": 45,
    "uniquePayers30d": 4,
    "lastCalledAt": "2026-09-18T08:00:09.493Z"
  },
  "liveness": {},
  "verified": false,
  "featured": false,
  "provider": {
    "host": "mcp.barker.money",
    "manifest_name": "mcp.barker.money",
    "source": "cdp-mirror",
    "source_manifest_url": "https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources",
    "submitted_at": "2026-09-18T22:00:31.484Z"
  }
}