FETCH402
← Protocol index

Resource / 121

healthy

Otto AI.

GET https://x402.ottoai.services/yield-alpha ↗

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

Eligibility
probeable
Failures
0
Last quote
2026-08-12 21:30:02 UTC
Last probe
2026-08-12 21:30:02 UTC
Payment requirements / accepts[] 5 options
State Network Scheme Atomic amount Asset payTo / untrusted
active eip155:8453 exact 2000 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 0x0E84dDEdAaE6A779c462C22a59F301EC31B6b808
active eip155:8453 exact 2000 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 0x0E84dDEdAaE6A779c462C22a59F301EC31B6b808
active eip155:137 exact 2000 0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359 0x0E84dDEdAaE6A779c462C22a59F301EC31B6b808
active eip155:137 exact 2000 0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359 0x0E84dDEdAaE6A779c462C22a59F301EC31B6b808
active solana:5eykt4usfv8p8njdtrepy1vzqkqzkvdp exact 2000 EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v 6XcSfqJHr9vNW2vbiRaMqUYVm7shDgLepca54wUTDPN5

All advertised payment options are stored. Base (`eip155:8453`) is the operational network for ranking and canaries; non-Base options remain visible for transparency.

Probe evidence 1 recent
healthy 2026-08-12 21:30:02 UTC GET · HTTP 402 · 204ms · accepts 5 · base 2 ok
Request
GET https://x402.ottoai.services/yield-alpha
Robots
error
Note
robots_error:{:robots_http_status, 404};http_402;accepts=5;base=2
Accepts fingerprint
d3b9d61ea908f732548752eb124b99edd30e3652d8390172bcd8497d9ca5a971

Accepts snapshot

[
  {
    "amount": "2000",
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "assetTransferMethod": null,
    "extra": {
      "name": "USD Coin",
      "version": "2"
    },
    "maxTimeoutSeconds": 300,
    "network": "eip155:8453",
    "payTo": "0x0E84dDEdAaE6A779c462C22a59F301EC31B6b808",
    "paymentFlow": null,
    "raw": {
      "amount": "2000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "max_timeout_seconds": 300,
      "network": "eip155:8453",
      "payTo": "0x0E84dDEdAaE6A779c462C22a59F301EC31B6b808",
      "pay_to": "0x0E84dDEdAaE6A779c462C22a59F301EC31B6b808",
      "scheme": "exact"
    },
    "scheme": "exact"
  },
  {
    "amount": "2000",
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "assetTransferMethod": "permit2",
    "extra": {
      "assetTransferMethod": "permit2",
      "name": "USD Coin",
      "version": "2"
    },
    "maxTimeoutSeconds": 300,
    "network": "eip155:8453",
    "payTo": "0x0E84dDEdAaE6A779c462C22a59F301EC31B6b808",
    "paymentFlow": null,
    "raw": {
      "amount": "2000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "assetTransferMethod": "permit2",
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "max_timeout_seconds": 300,
      "network": "eip155:8453",
      "payTo": "0x0E84dDEdAaE6A779c462C22a59F301EC31B6b808",
      "pay_to": "0x0E84dDEdAaE6A779c462C22a59F301EC31B6b808",
      "scheme": "exact"
    },
    "scheme": "exact"
  },
  {
    "amount": "2000",
    "asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
    "assetTransferMethod": null,
    "extra": {
      "name": "USD Coin",
      "version": "2"
    },
    "maxTimeoutSeconds": 300,
    "network": "eip155:137",
    "payTo": "0x0E84dDEdAaE6A779c462C22a59F301EC31B6b808",
    "paymentFlow": null,
    "raw": {
      "amount": "2000",
      "asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "max_timeout_seconds": 300,
      "network": "eip155:137",
      "payTo": "0x0E84dDEdAaE6A779c462C22a59F301EC31B6b808",
      "pay_to": "0x0E84dDEdAaE6A779c462C22a59F301EC31B6b808",
      "scheme": "exact"
    },
    "scheme": "exact"
  },
  {
    "amount": "2000",
    "asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
    "assetTransferMethod": "permit2",
    "extra": {
      "assetTransferMethod": "permit2",
      "name": "USD Coin",
      "version": "2"
    },
    "maxTimeoutSeconds": 300,
    "network": "eip155:137",
    "payTo": "0x0E84dDEdAaE6A779c462C22a59F301EC31B6b808",
    "paymentFlow": null,
    "raw": {
      "amount": "2000",
      "asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
      "extra": {
        "assetTransferMethod": "permit2",
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "max_timeout_seconds": 300,
      "network": "eip155:137",
      "payTo": "0x0E84dDEdAaE6A779c462C22a59F301EC31B6b808",
      "pay_to": "0x0E84dDEdAaE6A779c462C22a59F301EC31B6b808",
      "scheme": "exact"
    },
    "scheme": "exact"
  },
  {
    "amount": "2000",
    "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
    "assetTransferMethod": null,
    "extra": {
      "feePayer": "BENrLoUbndxoNMUS5JXApGMtNykLjFXXixMtpDwDR9SP"
    },
    "maxTimeoutSeconds": 300,
    "network": "solana:5eykt4usfv8p8njdtrepy1vzqkqzkvdp",
    "payTo": "6XcSfqJHr9vNW2vbiRaMqUYVm7shDgLepca54wUTDPN5",
    "paymentFlow": null,
    "raw": {
      "amount": "2000",
      "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
      "extra": {
        "feePayer": "BENrLoUbndxoNMUS5JXApGMtNykLjFXXixMtpDwDR9SP"
      },
      "maxTimeoutSeconds": 300,
      "max_timeout_seconds": 300,
      "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
      "payTo": "6XcSfqJHr9vNW2vbiRaMqUYVm7shDgLepca54wUTDPN5",
      "pay_to": "6XcSfqJHr9vNW2vbiRaMqUYVm7shDgLepca54wUTDPN5",
      "scheme": "exact"
    },
    "scheme": "exact"
  }
]

PaymentRequired raw 

{
  "accepts": [
    {
      "amount": "2000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x0E84dDEdAaE6A779c462C22a59F301EC31B6b808",
      "scheme": "exact"
    },
    {
      "amount": "2000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "assetTransferMethod": "permit2",
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x0E84dDEdAaE6A779c462C22a59F301EC31B6b808",
      "scheme": "exact"
    },
    {
      "amount": "2000",
      "asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:137",
      "payTo": "0x0E84dDEdAaE6A779c462C22a59F301EC31B6b808",
      "scheme": "exact"
    },
    {
      "amount": "2000",
      "asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
      "extra": {
        "assetTransferMethod": "permit2",
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:137",
      "payTo": "0x0E84dDEdAaE6A779c462C22a59F301EC31B6b808",
      "scheme": "exact"
    },
    {
      "amount": "2000",
      "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
      "extra": {
        "feePayer": "BENrLoUbndxoNMUS5JXApGMtNykLjFXXixMtpDwDR9SP"
      },
      "maxTimeoutSeconds": 300,
      "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
      "payTo": "6XcSfqJHr9vNW2vbiRaMqUYVm7shDgLepca54wUTDPN5",
      "scheme": "exact"
    }
  ],
  "error": "Payment required",
  "extensions": {
    "bazaar": {
      "info": {
        "input": {
          "method": "GET",
          "queryParams": {},
          "type": "http"
        },
        "output": {
          "example": {
            "data": {
              "opportunities": "Top yields: Aave USDC 5%..."
            },
            "status": "success"
          },
          "type": "json"
        }
      },
      "schema": {
        "$schema": "https://json-schema.org/draft/2020-12/schema",
        "properties": {
          "input": {
            "additionalProperties": false,
            "properties": {
              "method": {
                "enum": [
                  "GET"
                ],
                "type": "string"
              },
              "queryParams": {
                "properties": {},
                "type": "object"
              },
              "type": {
                "const": "http",
                "type": "string"
              }
            },
            "required": [
              "type",
              "method"
            ],
            "type": "object"
          },
          "output": {
            "properties": {
              "example": {
                "properties": {
                  "data": {
                    "description": "Yield opportunities object on success, error string on failure"
                  },
                  "status": {
                    "enum": [
                      "success",
                      "failed"
                    ],
                    "type": "string"
                  }
                },
                "required": [
                  "status",
                  "data"
                ],
                "type": "object"
              },
              "type": {
                "type": "string"
              }
            },
            "required": [
              "type"
            ],
            "type": "object"
          }
        },
        "required": [
          "input"
        ],
        "type": "object"
      }
    },
    "builder-code": {
      "info": {
        "a": "bc_hc2dhq09"
      },
      "schema": {
        "$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": 1786570502,
              "version": 1
            },
            "signature": "0xddc6f3569b50d18d7dd805e593b215c9380504831df8a7ec366550a5bf8b19ff2a8d3756ccf6154a4a74389ae6471e6d47743721fb93a0fd3425903b06629a071c"
          },
          {
            "acceptIndex": 1,
            "format": "eip712",
            "payload": {
              "amount": "2000",
              "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
              "network": "eip155:8453",
              "payTo": "0x0E84dDEdAaE6A779c462C22a59F301EC31B6b808",
              "resourceUrl": "https://x402.ottoai.services/yield-alpha",
              "scheme": "exact",
              "validUntil": 1786570502,
              "version": 1
            },
            "signature": "0xddc6f3569b50d18d7dd805e593b215c9380504831df8a7ec366550a5bf8b19ff2a8d3756ccf6154a4a74389ae6471e6d47743721fb93a0fd3425903b06629a071c"
          },
          {
            "acceptIndex": 2,
            "format": "eip712",
            "payload": {
              "amount": "2000",
              "asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
              "network": "eip155:137",
              "payTo": "0x0E84dDEdAaE6A779c462C22a59F301EC31B6b808",
              "resourceUrl": "https://x402.ottoai.services/yield-alpha",
              "scheme": "exact",
              "validUntil": 1786570502,
              "version": 1
            },
            "signature": "0x3f07a2fe5d1b06449855d7d59715572ff0cfbf5452b51fca112e06980e6e2a3f6aeda6f67501c116c18013395e7d1475a44f14eb2fbe6fe22b899e8f1f7c325d1c"
          },
          {
            "acceptIndex": 3,
            "format": "eip712",
            "payload": {
              "amount": "2000",
              "asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
              "network": "eip155:137",
              "payTo": "0x0E84dDEdAaE6A779c462C22a59F301EC31B6b808",
              "resourceUrl": "https://x402.ottoai.services/yield-alpha",
              "scheme": "exact",
              "validUntil": 1786570502,
              "version": 1
            },
            "signature": "0x3f07a2fe5d1b06449855d7d59715572ff0cfbf5452b51fca112e06980e6e2a3f6aeda6f67501c116c18013395e7d1475a44f14eb2fbe6fe22b899e8f1f7c325d1c"
          },
          {
            "acceptIndex": 4,
            "format": "eip712",
            "payload": {
              "amount": "2000",
              "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
              "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
              "payTo": "6XcSfqJHr9vNW2vbiRaMqUYVm7shDgLepca54wUTDPN5",
              "resourceUrl": "https://x402.ottoai.services/yield-alpha",
              "scheme": "exact",
              "validUntil": 1786570502,
              "version": 1
            },
            "signature": "0xa97a0cf4234d6ebc0a5803a659d5a26a24a2eb5ba4adab7c153edac5b773a6953012407f522dfc315a221680f18be6963907bd919b18d0e03d3c48ab5d5d0f391c"
          }
        ]
      },
      "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": "2026-08-12T21:30:02.672Z",
        "nonce": "dc39593b761d69fbe310fca187101ad5",
        "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": "eip155:137",
          "type": "eip191"
        },
        {
          "chainId": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
          "type": "ed25519"
        }
      ]
    }
  },
  "resource": {
    "description": "Best DeFi yield opportunities across stablecoins, ETH, and BTC with risk ratings and APY comparisons.",
    "iconUrl": "https://x402.ottoai.services/assets/otto-icon.png",
    "mimeType": "application/json",
    "serviceName": "Otto AI",
    "tags": [
      "defi yield",
      "yield farming",
      "apy comparison",
      "stablecoin yield"
    ],
    "url": "https://x402.ottoai.services/yield-alpha"
  },
  "x402Version": 2
}

Response headers

{
  "access-control-allow-origin": "*",
  "access-control-expose-headers": "PAYMENT-RESPONSE,PAYMENT-REQUIRED,PAYMENT-SIGNATURE,X-Payment-Response,WWW-Authenticate,X-Payment,X-Payment-Receipt",
  "connection": "keep-alive",
  "content-length": "650",
  "content-type": "application/json; charset=utf-8",
  "date": "Wed, 12 Aug 2026 21:30:02 GMT",
  "etag": "W/\"28a-nrYwyrrV9EFDTnPGB7gnVOcN8I0\"",
  "payment-required": "{"x402Version":2,"error":"Payment required","resource":{"url":"https://x402.ottoai.services/yield-alpha","description":"Best DeFi yield opportunities across stablecoins, ETH, and BTC with risk ratings and APY comparisons.","mimeType":"application/json","serviceName":"Otto AI","tags":["defi yield","yield farming","apy comparison","stablecoin yield"],"iconUrl":"https://x402.ottoai.services/assets/otto-icon.png"},"accepts":[{"scheme":"exact","network":"eip155:8453","amount":"2000","asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","payTo":"0x0E84dDEdAaE6A779c462C22a59F301EC31B6b808","maxTimeoutSeconds":300,"extra":{"name":"USD Coin","version":"2"}},{"scheme":"exact","network":"eip155:8453","amount":"2000","asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","payTo":"0x0E84dDEdAaE6A779c462C22a59F301EC31B6b808","maxTimeoutSeconds":300,"extra":{"name":"USD Coin","version":"2","assetTransferMethod":"permit2"}},{"scheme":"exact","network":"eip155:137","amount":"2000","asset":"0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359","payTo":"0x0E84dDEdAaE6A779c462C22a59F301EC31B6b808","maxTimeoutSeconds":300,"extra":{"name":"USD Coin","version":"2"}},{"scheme":"exact","network":"eip155:137","amount":"2000","asset":"0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359","payTo":"0x0E84dDEdAaE6A779c462C22a59F301EC31B6b808","maxTimeoutSeconds":300,"extra":{"name":"USD Coin","version":"2","assetTransferMethod":"permit2"}},{"scheme":"exact","network":"solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp","amount":"2000","asset":"EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v","payTo":"6XcSfqJHr9vNW2vbiRaMqUYVm7shDgLepca54wUTDPN5","maxTimeoutSeconds":300,"extra":{"feePayer":"BENrLoUbndxoNMUS5JXApGMtNykLjFXXixMtpDwDR9SP"}}],"extensions":{"offer-receipt":{"info":{"offers":[{"format":"eip712","acceptIndex":0,"payload":{"version":1,"resourceUrl":"https://x402.ottoai.services/yield-alpha","scheme":"exact","network":"eip155:8453","asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","payTo":"0x0E84dDEdAaE6A779c462C22a59F301EC31B6b808","amount":"2000","validUntil":1786570502},"signature":"0xddc6f3569b50d18d7dd805e593b215c9380504831df8a7ec366550a5bf8b19ff2a8d3756ccf6154a4a74389ae6471e6d47743721fb93a0fd3425903b06629a071c"},{"format":"eip712","acceptIndex":1,"payload":{"version":1,"resourceUrl":"https://x402.ottoai.services/yield-alpha","scheme":"exact","network":"eip155:8453","asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","payTo":"0x0E84dDEdAaE6A779c462C22a59F301EC31B6b808","amount":"2000","validUntil":1786570502},"signature":"0xddc6f3569b50d18d7dd805e593b215c9380504831df8a7ec366550a5bf8b19ff2a8d3756ccf6154a4a74389ae6471e6d47743721fb93a0fd3425903b06629a071c"},{"format":"eip712","acceptIndex":2,"payload":{"version":1,"resourceUrl":"https://x402.ottoai.services/yield-alpha","scheme":"exact","network":"eip155:137","asset":"0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359","payTo":"0x0E84dDEdAaE6A779c462C22a59F301EC31B6b808","amount":"2000","validUntil":1786570502},"signature":"0x3f07a2fe5d1b06449855d7d59715572ff0cfbf5452b51fca112e06980e6e2a3f6aeda6f67501c116c18013395e7d1475a44f14eb2fbe6fe22b899e8f1f7c325d1c"},{"format":"eip712","acceptIndex":3,"payload":{"version":1,"resourceUrl":"https://x402.ottoai.services/yield-alpha","scheme":"exact","network":"eip155:137","asset":"0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359","payTo":"0x0E84dDEdAaE6A779c462C22a59F301EC31B6b808","amount":"2000","validUntil":1786570502},"signature":"0x3f07a2fe5d1b06449855d7d59715572ff0cfbf5452b51fca112e06980e6e2a3f6aeda6f67501c116c18013395e7d1475a44f14eb2fbe6fe22b899e8f1f7c325d1c"},{"format":"eip712","acceptIndex":4,"payload":{"version":1,"resourceUrl":"https://x402.ottoai.services/yield-alpha","scheme":"exact","network":"solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp","asset":"EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v","payTo":"6XcSfqJHr9vNW2vbiRaMqUYVm7shDgLepca54wUTDPN5","amount":"2000","validUntil":1786570502},"signature":"0xa97a0cf4234d6ebc0a5803a659d5a26a24a2eb5ba4adab7c153edac5b773a6953012407f522dfc315a221680f18be6963907bd919b18d0e03d3c48ab5d5d0f391c"}]},"schema":{"$schema":"https://json-schema.org/draft/2020-12/schema","type":"object","properties":{"offers":{"type":"array","items":{"type":"object","properties":{"format":{"type":"string"},"acceptIndex":{"type":"integer"},"payload":{"type":"object","properties":{"version":{"type":"integer"},"resourceUrl":{"type":"string"},"scheme":{"type":"string"},"network":{"type":"string"},"asset":{"type":"string"},"payTo":{"type":"string"},"amount":{"type":"string"},"validUntil":{"type":"integer"}},"required":["version","resourceUrl","scheme","network","asset","payTo","amount"]},"signature":{"type":"string"}},"required":["format","signature"]}}},"required":["offers"]}},"otto-content-receipt":{},"builder-code":{"info":{"a":"bc_hc2dhq09"},"schema":{"$schema":"https://json-schema.org/draft/2020-12/schema","type":"object","properties":{"a":{"type":"string","pattern":"^[a-z0-9_]{1,32}$","description":"App builder code"},"w":{"type":"string","pattern":"^[a-z0-9_]{1,32}$","description":"Wallet builder code"},"s":{"type":"array","items":{"type":"string","pattern":"^[a-z0-9_]{1,32}$"},"description":"Service builder codes"}},"additionalProperties":false}},"sign-in-with-x":{"info":{"domain":"x402.ottoai.services","uri":"https://x402.ottoai.services/yield-alpha","version":"1","nonce":"dc39593b761d69fbe310fca187101ad5","issuedAt":"2026-08-12T21:30:02.672Z","resources":["https://x402.ottoai.services/yield-alpha"],"statement":"Sign in to access Otto AI market intelligence"},"supportedChains":[{"chainId":"eip155:8453","type":"eip191"},{"chainId":"eip155:137","type":"eip191"},{"chainId":"solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp","type":"ed25519"}],"schema":{"$schema":"https://json-schema.org/draft/2020-12/schema","type":"object","properties":{"domain":{"type":"string"},"address":{"type":"string"},"statement":{"type":"string"},"uri":{"type":"string","format":"uri"},"version":{"type":"string"},"chainId":{"type":"string"},"type":{"type":"string"},"nonce":{"type":"string"},"issuedAt":{"type":"string","format":"date-time"},"expirationTime":{"type":"string","format":"date-time"},"notBefore":{"type":"string","format":"date-time"},"requestId":{"type":"string"},"resources":{"type":"array","items":{"type":"string","format":"uri"}},"signature":{"type":"string"}},"required":["domain","address","uri","version","chainId","type","nonce","issuedAt","signature"]}},"bazaar":{"info":{"input":{"type":"http","queryParams":{},"method":"GET"},"output":{"type":"json","example":{"status":"success","data":{"opportunities":"Top yields: Aave USDC 5%..."}}}},"schema":{"$schema":"https://json-schema.org/draft/2020-12/schema","type":"object","properties":{"input":{"type":"object","properties":{"type":{"type":"string","const":"http"},"method":{"type":"string","enum":["GET"]},"queryParams":{"type":"object","properties":{}}},"required":["type","method"],"additionalProperties":false},"output":{"type":"object","properties":{"type":{"type":"string"},"example":{"type":"object","properties":{"status":{"type":"string","enum":["success","failed"]},"data":{"description":"Yield opportunities object on success, error string on failure"}},"required":["status","data"]}},"required":["type"]}},"required":["input"]}}}}",
  "server": "railway-hikari",
  "vary": "accept-encoding",
  "x-hikari-trace": "iad1.fp5t",
  "x-powered-by": "Express",
  "x-railway-edge": "iad1",
  "x-railway-request-id": "XKkDD4MLTjW6-Z9SEuroCg"
}

Response body 

{
  "contact": {
    "email": "admin@useotto.xyz",
    "feedback": "POST https://x402.ottoai.services/feedback ($0.001) -- money-back guarantee on Otto-recommended services and Full Auto; feature requests welcome (email/Telegram are free).",
    "telegram": "https://t.me/DeFAI_Capital",
    "twitter": "https://twitter.com/useOttoAI"
  },
  "docs": "https://docs.useotto.xyz/getting-started/agent-quickstart",
  "error": "payment_required",
  "hint": "This is a pay-per-call x402 endpoint. The price and payment options (networks, signed offers) are in the PAYMENT-REQUIRED response header (x402 v2). Pay with an x402 client, then retry to receive the data.",
  "price": "$0.002",
  "x402Version": 2
}

Request headers

{
  "accept": "*/*",
  "user-agent": "Fetch402Bot/0.1 (+https://fetch402.com/crawler; contact: crawler@fetch402.com)"
}

Machine contract

Schemas.

InputJSON
{
  "method": "GET",
  "queryParams": {},
  "type": "http"
}
OutputJSON
{
  "example": {
    "data": {
      "opportunities": "Top yields: Aave USDC 5%..."
    },
    "status": "success"
  },
  "type": "json"
}