Orphan Desk OBO fee quote / counter

{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "https://dualregistry.dev/fee_quote.schema.json",
  "title": "Orphan Desk OBO fee quote / counter",
  "description": "Live OBO via POST /api/quote_fee|/api/counter_fee|/api/fee_quote. Exploratory (no firm): 200 indicative ask/floor. Firm: requires $0.10 USDC bond (bond_tx_hash) else 402 bond invoice. With bond: bid>=ask → HTTP 402 accept invoice (amount=final_usdc, quote_id, receive wallet, USDC/Base+USDT/BSC); floor<=bid<ask → 200 counter; bid<floor → 422. Rate limit ~10/10min. Quotes TTL 20m; quote_id unlocks legs after pay + GET with X-PAYMENT-* + X-QUOTE-ID.",
  "oneOf": [
    {
      "title": "quote_fee_request",
      "type": "object",
      "required": [
        "echo_id",
        "bid_bps"
      ],
      "properties": {
        "echo_id": {
          "type": "string"
        },
        "bid_bps": {
          "type": "integer",
          "minimum": 0
        },
        "bid_usdc": {
          "type": "string"
        },
        "agent_id": {
          "type": "string"
        },
        "firm": {
          "type": "boolean",
          "description": "true for binding accept/counter; false/omit = indicative only"
        },
        "bond": {
          "type": "boolean"
        },
        "bond_tx_hash": {
          "type": "string",
          "description": "0x… USDC bond payment to fee wallet"
        },
        "bond_chain": {
          "type": "string"
        },
        "x402_payment_intent": {
          "type": "object"
        },
        "action": {
          "type": "string",
          "enum": [
            "quote_fee",
            "counter_fee"
          ]
        }
      }
    },
    {
      "title": "fee_quote_response",
      "type": "object",
      "required": [
        "status",
        "echo_id",
        "ask_bps",
        "floor_bps",
        "receive_address",
        "expires_at",
        "quote_id"
      ],
      "properties": {
        "status": {
          "enum": [
            "accept",
            "counter",
            "reject",
            "indicative",
            "bond_required"
          ]
        },
        "decision": {
          "enum": [
            "accept",
            "counter",
            "reject",
            "indicative",
            "bond_required"
          ]
        },
        "echo_id": {
          "type": "string"
        },
        "final_bps": {
          "type": [
            "integer",
            "null"
          ]
        },
        "final_usdc": {
          "type": [
            "string",
            "null"
          ]
        },
        "amount": {
          "type": "string",
          "description": "On accept-402: invoice amount (=final_usdc)"
        },
        "ask_bps": {
          "type": "integer"
        },
        "floor_bps": {
          "type": "integer"
        },
        "bid_bps": {
          "type": "integer"
        },
        "x402": {
          "type": "object"
        },
        "receive_address": {
          "type": "string"
        },
        "receive_wallet": {
          "type": "string"
        },
        "expires_at": {
          "type": "string",
          "format": "date-time"
        },
        "quote_id": {
          "type": "string"
        },
        "ttl_seconds": {
          "type": "integer"
        },
        "quote_bond_usdc": {
          "type": "string"
        },
        "note": {
          "type": "string"
        },
        "rule": {
          "type": "string"
        },
        "storage": {
          "type": "string"
        }
      }
    }
  ],
  "desk_defaults": {
    "obo": true,
    "ask_bps": 25,
    "floor_bps": 10,
    "receive_address": "0x459cF7359e37B45A0d2a2479656cD96cdA9F7dBb",
    "ttl_seconds": 1200,
    "quote_bond_usdc": "0.10",
    "rate_limit": {
      "max": 10,
      "window_seconds": 600
    },
    "accept_http": 402,
    "counter_http": 200,
    "reject_http": 422,
    "counter_rule": "midpoint_ceil",
    "accept_rule": "at_bid_when_bid_gte_ask_returns_http_402_invoice",
    "handler": "live",
    "endpoints": {
      "quote_fee": "https://dualregistry.dev/api/quote_fee",
      "counter_fee": "https://dualregistry.dev/api/counter_fee",
      "fee_quote": "https://dualregistry.dev/api/fee_quote"
    }
  },
  "alternate_hosts": [
    "https://orphan-desk-echo.vercel.app"
  ]
}