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mirrored listing x402 eip155:8453solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp

Best DeFi yield opportunities across stablecoins, ETH, and BTC with risk ratings and APY c

Best DeFi yield opportunities across stablecoins, ETH, and BTC with risk ratings and APY comparisons.

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2000 (raw units)
price
14
calls / 30d
10
unique payers
2026-09-14
updated

Provider

x402.ottoai.services · discovered, not yet claimed by its owner

Payment (x402 accepts[])

[
  {
    "scheme": "exact",
    "network": "eip155:8453",
    "payTo": "0x0E84dDEdAaE6A779c462C22a59F301EC31B6b808",
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "amount": "2000",
    "maxTimeoutSeconds": 300
  },
  {
    "scheme": "exact",
    "network": "eip155:8453",
    "payTo": "0x0E84dDEdAaE6A779c462C22a59F301EC31B6b808",
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "amount": "2000",
    "maxTimeoutSeconds": 300
  },
  {
    "scheme": "exact",
    "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
    "payTo": "6XcSfqJHr9vNW2vbiRaMqUYVm7shDgLepca54wUTDPN5",
    "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
    "amount": "2000",
    "maxTimeoutSeconds": 300
  }
]

Output schema

{
  "bazaar": {
    "info": {
      "input": {
        "method": "GET",
        "queryParams": {},
        "type": "http"
      },
      "output": {
        "example": {
          "data": {
            "excludedImplausible": 0,
            "exclusions": {
              "implausible_apy": {
                "action": "excluded from all published rows and aggregates",
                "ceiling_pct": 1000,
                "count": 0,
                "reason": "implausible upstream APY"
              }
            },
            "opportunities": "=== OTTO YIELD ALPHA OPPORTUNITIES ===\nBest Stablecoin: Aave USDC 5.0% ...",
            "servingPath": "db-cache"
          },
          "meta": {
            "degraded": false,
            "generatedAt": "2026-08-10T12:00:00.000Z",
            "sourceHealth": {
              "yield-backend": "ok"
            },
            "stalenessSec": 696
          },
          "status": "success"
        },
        "type": "json"
      }
    },
    "schema": {
      "$schema": "https://json-schema.org/draft/2020-12/schema",
      "properties": {
        "input": {
          "additionalProperties": false,
          "properties": {
            "method": {
              "enum": [
                "GET"
              ],
              "type": "string"
            },
            "queryParams": {
              "properties": {},
              "type": "object"
            },
            "type": {
              "const": "http",
              "type": "string"
            }
          },
          "required": [
            "type",
            "method"
          ],
          "type": "object"
        },
        "output": {
          "properties": {
            "example": {
              "properties": {
                "data": {
                  "description": "On success: { opportunities (report text), exclusions.implausible_apy (the plausibility bound's always-present verdict), excludedImplausible (count), servingPath ('db-cache'|'live') }. On failure: an error string."
                },
                "meta": {
                  "description": "Freshness block. stalenessSec = age of the cached snapshot, present only on servingPath 'db-cache' and absent on 'live'; generatedAt = when this response was built; degraded = an older good snapshot was served after a refresh failed."
                },
                "status": {
                  "enum": [
                    "success",
                    "failed"
                  ],
                  "type": "string"
                }
              },
              "required": [
                "status",
                "data"
              ],
              "type": "object"
            },
            "type": {
              "type": "string"
            }
          },
          "required": [
            "type"
          ],
          "type": "object"
        }
      },
      "required": [
        "input"
      ],
      "type": "object"
    }
  },
  "builder-code": {
    "info": {
      "a": "bc_hc2dhq09"
    },
    "schema": {
      "$schema": "https://json-schema.org/draft/2020-12/schema",
      "additionalProperties": false,
      "properties": {
        "a": {
          "description": "App builder code",
          "pattern": "^[a-z0-9_]{1,32}$",
          "type": "string"
        },
        "s": {
          "description": "Service builder codes",
          "items": {
            "pattern": "^[a-z0-9_]{1,32}$",
            "type": "string"
          },
          "type": "array"
        },
        "w": {
          "description": "Wallet builder code",
          "pattern": "^[a-z0-9_]{1,32}$",
          "type": "string"
        }
      },
      "type": "object"
    }
  },
  "offer-receipt": {
    "info": {
      "offers": [
        {
          "acceptIndex": 0,
          "format": "eip712",
          "payload": {
            "amount": "2000",
            "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
            "network": "eip155:8453",
            "payTo": "0x0E84dDEdAaE6A779c462C22a59F301EC31B6b808",
            "resourceUrl": "https://x402.ottoai.services/yield-alpha",
            "scheme": "exact",
            "validUntil": 1789375132,
            "version": 1
          },
          "signature": "0x8849bbb59b3c5e93e3b17722fadab406ba79323687403ed9dd0c9552cdf4e4bf3aaae1fa5367f9b02d0f603c01cf737fa03ae0fe31226d37ad4c26689cb102fe1b"
        },
        {
          "acceptIndex": 1,
          "format": "eip712",
          "payload": {
            "amount": "2000",
            "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
            "network": "eip155:8453",
            "payTo": "0x0E84dDEdAaE6A779c462C22a59F301EC31B6b808",
            "resourceUrl": "https://x402.ottoai.services/yield-alpha",
            "scheme": "exact",
            "validUntil": 1789375132,
            "version": 1
          },
          "signature": "0x8849bbb59b3c5e93e3b17722fadab406ba79323687403ed9dd0c9552cdf4e4bf3aaae1fa5367f9b02d0f603c01cf737fa03ae0fe31226d37ad4c26689cb102fe1b"
        },
        {
          "acceptIndex": 2,
          "format": "eip712",
          "payload": {
            "amount": "2000",
            "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
            "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
            "payTo": "6XcSfqJHr9vNW2vbiRaMqUYVm7shDgLepca54wUTDPN5",
            "resourceUrl": "https://x402.ottoai.services/yield-alpha",
            "scheme": "exact",
            "validUntil": 1789375132,
            "version": 1
          },
          "signature": "0x033296f73a196ae2405450a96d054df846af77ab702f5c028fa3df2d30bb5bb341563e6c0e7e725c24ddbc36125b2dfb925ca007b8c75f0c7c3aa9758339e8331b"
        }
      ]
    },
    "schema": {
      "$schema": "https://json-schema.org/draft/2020-12/schema",
      "properties": {
        "offers": {
          "items": {
            "properties": {
              "acceptIndex": {
                "type": "integer"
              },
              "format": {
                "type": "string"
              },
              "payload": {
                "properties": {
                  "amount": {
                    "type": "string"
                  },
                  "asset": {
                    "type": "string"
                  },
                  "network": {
                    "type": "string"
                  },
                  "payTo": {
                    "type": "string"
                  },
                  "resourceUrl": {
                    "type": "string"
                  },
                  "scheme": {
                    "type": "string"
                  },
                  "validUntil": {
                    "type": "integer"
                  },
                  "version": {
                    "type": "integer"
                  }
                },
                "required": [
                  "version",
                  "resourceUrl",
                  "scheme",
                  "network",
                  "asset",
                  "payTo",
                  "amount"
                ],
                "type": "object"
              },
              "signature": {
                "type": "string"
              }
            },
            "required": [
              "format",
              "signature"
            ],
            "type": "object"
          },
          "type": "array"
        }
      },
      "required": [
        "offers"
      ],
      "type": "object"
    }
  },
  "otto-content-receipt": {},
  "sign-in-with-x": {
    "info": {
      "domain": "x402.ottoai.services",
      "issuedAt": "2026-09-14T08:33:52.213Z",
      "nonce": "a9a034e46a0bcde394813f4de4193f1b",
      "resources": [
        "https://x402.ottoai.services/yield-alpha"
      ],
      "statement": "Sign in to access Otto AI market intelligence",
      "uri": "https://x402.ottoai.services/yield-alpha",
      "version": "1"
    },
    "schema": {
      "$schema": "https://json-schema.org/draft/2020-12/schema",
      "properties": {
        "address": {
          "type": "string"
        },
        "chainId": {
          "type": "string"
        },
        "domain": {
          "type": "string"
        },
        "expirationTime": {
          "format": "date-time",
          "type": "string"
        },
        "issuedAt": {
          "format": "date-time",
          "type": "string"
        },
        "nonce": {
          "type": "string"
        },
        "notBefore": {
          "format": "date-time",
          "type": "string"
        },
        "requestId": {
          "type": "string"
        },
        "resources": {
          "items": {
            "format": "uri",
            "type": "string"
          },
          "type": "array"
        },
        "signature": {
          "type": "string"
        },
        "statement": {
          "type": "string"
        },
        "type": {
          "type": "string"
        },
        "uri": {
          "format": "uri",
          "type": "string"
        },
        "version": {
          "type": "string"
        }
      },
      "required": [
        "domain",
        "address",
        "uri",
        "version",
        "chainId",
        "type",
        "nonce",
        "issuedAt",
        "signature"
      ],
      "type": "object"
    },
    "supportedChains": [
      {
        "chainId": "eip155:8453",
        "type": "eip191"
      },
      {
        "chainId": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
        "type": "ed25519"
      }
    ]
  }
}

Use it

curl

curl "https://x402.ottoai.services/yield-alpha"
# -> 402 Payment Required, accepts[] lists how to pay
# retry with a PAYMENT-SIGNATURE (or PAYMENT header) once paid

JavaScript

const res = await fetch("https://x402.ottoai.services/yield-alpha");
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://x402.ottoai.services/yield-alpha")
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/152.json, and this resource appears in /discovery/resources and /discovery/search.