Detect whether an arbitrage opportunity exists in a set of token exchange rates (multi-poo

[
  {
    "scheme": "exact",
    "network": "eip155:8453",
    "payTo": "0xA238AF2e66D9d7301F2D02932931851DdF900Dcd",
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "amount": "1000",
    "maxTimeoutSeconds": 30
  }
]

{
  "bazaar": {
    "info": {
      "input": {
        "body": {
          "edges": [
            {
              "dex": "aerodrome",
              "fee": 0.0005,
              "from": "USDC",
              "rate": 0.00031,
              "to": "WETH"
            },
            {
              "dex": "uniswap",
              "fee": 0.0005,
              "from": "WETH",
              "rate": 3300,
              "to": "USDC"
            }
          ]
        },
        "bodyType": "json",
        "method": "POST",
        "type": "http"
      },
      "output": {
        "example": {
          "edgesEvaluated": 3,
          "hasArbitrage": true,
          "hops": 3,
          "nodesEvaluated": 3,
          "profitBucket": ">2%",
          "tier": "probe"
        },
        "type": "json"
      }
    },
    "schema": {
      "$schema": "https://json-schema.org/draft/2020-12/schema",
      "properties": {
        "input": {
          "additionalProperties": false,
          "properties": {
            "body": {
              "properties": {
                "edges": {
                  "description": "Directed exchange-rate edges describing a token swap graph. Supply the rates you observed; the server makes no RPC calls of its own.",
                  "items": {
                    "properties": {
                      "dex": {
                        "description": "Venue label; echoed back untouched.",
                        "type": "string"
                      },
                      "fee": {
                        "description": "Fractional swap fee, e.g. 0.003 for 0.30%. Defaults to 0.",
                        "exclusiveMaximum": 1,
                        "minimum": 0,
                        "type": "number"
                      },
                      "from": {
                        "description": "Source token symbol.",
                        "type": "string"
                      },
                      "pool": {
                        "description": "Pool address; echoed back untouched.",
                        "type": "string"
                      },
                      "rate": {
                        "description": "Units of `to` per 1 unit of `from`, BEFORE fees.",
                        "exclusiveMinimum": 0,
                        "type": "number"
                      },
                      "to": {
                        "description": "Destination token symbol.",
                        "type": "string"
                      }
                    },
                    "required": [
                      "from",
                      "to",
                      "rate"
                    ],
                    "type": "object"
                  },
                  "minItems": 1,
                  "type": "array"
                }
              },
              "required": [
                "edges"
              ],
              "type": "object"
            },
            "bodyType": {
              "enum": [
                "json",
                "form-data",
                "text"
              ],
              "type": "string"
            },
            "method": {
              "enum": [
                "POST"
              ],
              "type": "string"
            },
            "type": {
              "const": "http",
              "type": "string"
            }
          },
          "required": [
            "type",
            "method",
            "bodyType",
            "body"
          ],
          "type": "object"
        },
        "output": {
          "properties": {
            "example": {
              "description": "Fast arbitrage-existence signal for a token swap graph: whether a profitable negative cycle exists and roughly how big, WITHOUT revealing the cycle path (that is the report tier).",
              "properties": {
                "edgesEvaluated": {
                  "type": "number"
                },
                "hasArbitrage": {
                  "description": "True if a profitable round-trip cycle exists.",
                  "type": "boolean"
                },
                "hops": {
                  "description": "Swaps in the detected cycle (0 if none).",
                  "type": "number"
                },
                "nodesEvaluated": {
                  "type": "number"
                },
                "profitBucket": {
                  "description": "Coarse magnitude of the best cycle gross profit.",
                  "enum": [
                    "none",
                    "<=0.1%",
                    "0.1-0.5%",
                    "0.5-2%",
                    ">2%"
                  ],
                  "type": "string"
                },
                "tier": {
                  "const": "probe"
                }
              },
              "type": "object"
            },
            "type": {
              "type": "string"
            }
          },
          "required": [
            "type"
          ],
          "type": "object"
        }
      },
      "required": [
        "input"
      ],
      "type": "object"
    }
  }
}

curl "https://x402-solvers.onrender.com/v1/cycles/probe"
# -> 402 Payment Required, accepts[] lists how to pay
# retry with a PAYMENT-SIGNATURE (or PAYMENT header) once paid

const res = await fetch("https://x402-solvers.onrender.com/v1/cycles/probe");
if (res.status === 402) {
  const { accepts } = await res.json();
  // pay one of accepts[] via an x402 client, then retry with the payment header
}

import httpx
res = httpx.get("https://x402-solvers.onrender.com/v1/cycles/probe")
if res.status_code == 402:
    accepts = res.json()["accepts"]
    # pay one of accepts[] via an x402 client, then retry with the payment header