ArbiPulse

Live 402 challenge

Captured by the enrichment pass, not read just now. Prices can change — always read the 402 the endpoint answers with.

{
  "error": "X-PAYMENT header is required",
  "accepts": [
    {
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "payTo": "0x50ab2018c06c6E4eAA9BA52057Eb55eD284912fc",
      "scheme": "exact",
      "network": "base",
      "mimeType": "application/json",
      "resource": "https://arbipulse.theaslangroupllc.com/api/calculator",
      "description": "Itemized fee breakdown and net P&L for any arbitrage trade — fees, slippage and gas. For arbitrage and trading agents.",
      "maxAmountRequired": "20000",
      "maxTimeoutSeconds": 300
    }
  ],
  "x402Version": 1
}

Accepts

The payment requirements as published to the catalog. Read the live 402 before paying — a price here is a claim, not a quote.

[
  {
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "extra": {
      "name": "USD Coin",
      "version": "2"
    },
    "payTo": "0x50ab2018c06c6E4eAA9BA52057Eb55eD284912fc",
    "amount": "50000",
    "scheme": "exact",
    "network": "eip155:8453",
    "maxTimeoutSeconds": 300
  },
  {
    "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
    "extra": {
      "feePayer": "BENrLoUbndxoNMUS5JXApGMtNykLjFXXixMtpDwDR9SP"
    },
    "payTo": "985iFjbnGQ3dJcwXnfRCMSrH4Jnc3kW1N6msR64B5KX1",
    "amount": "50000",
    "scheme": "exact",
    "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
    "maxTimeoutSeconds": 300
  }
]

Extensions

{
  "bazaar": {
    "info": {
      "input": {
        "type": "http",
        "method": "GET",
        "queryParams": {
          "days": "holding period for yield arb in days",
          "gas_usd": "estimated gas cost in USD",
          "arb_type": "spot | yield | perps | flash | sports",
          "exit_price": "sell price (or deposit APY for yield arb)",
          "entry_price": "buy price (or borrow APY for yield arb)",
          "slippage_bps": "expected price impact in basis points",
          "flash_fee_bps": "flash loan fee in bps (0 for Balancer, 9 for Aave)",
          "taker_fee_bps": "exchange taker fee in basis points (e.g. 10 = 0.10%)",
          "bridge_fee_usd": "bridge cost for cross-chain arb (0 if same chain)",
          "trade_size_usd": "position size in USD, e.g. 10000",
          "withdrawal_fee_usd": "exchange withdrawal fee in USD"
        }
      },
      "output": {
        "type": "json",
        "example": {
          "inputs": {
            "gas_usd": 0.5,
            "arb_type": "spot",
            "exit_price": 67950,
            "entry_price": 67800,
            "slippage_bps": 5,
            "taker_fee_bps": 10,
            "trade_size_usd": 10000
          },
          "verdict": "NOT VIABLE — costs exceed spread",
          "suggestion": "This spot arb is marginal at $10k. Minimum $50k+ for positive P&L. Consider perps funding carry for better risk-adjusted returns.",
          "fee_breakdown": {
            "gas_usd": 0.5,
            "slippage_usd": 5,
            "flash_fee_usd": 0,
            "bridge_fee_usd": 0,
            "total_costs_pct": 0.255,
            "total_costs_usd": 25.5,
            "taker_fee_buy_usd": 10,
            "taker_fee_sell_usd": 10,
            "withdrawal_fee_usd": 0
          },
          "net_profit_pct": -0.034,
          "net_profit_usd": -3.38,
          "scale_analysis": [
            {
              "net_pct": 0.032,
              "size_usd": 50000,
              "net_profit_usd": 16.1
            },
            {
              "net_pct": 0.057,
              "size_usd": 100000,
              "net_profit_usd": 57.2
            },
            {
              "net_pct": 0.072,
              "size_usd": 500000,
              "net_profit_usd": 357.5
            }
          ],
          "gross_spread_pct": 0.221,
          "gross_spread_usd": 22.12,
          "break_even_analysis": {
            "gap_bps": 4,
            "current_spread_bps": 22,
            "min_spread_bps_to_break_even": 26
          },
          "annualized_yield_pct": null
        }
      }
    },
    "schema": {
      "type": "object",
      "$schema": "https://json-schema.org/draft/2020-12/schema"
    }
  },
  "builder-code": {
    "info": {
      "a": "bc_gxy6qn5p"
    },
    "schema": {
      "type": "object",
      "$schema": "https://json-schema.org/draft/2020-12/schema",
      "properties": {
        "a": {
          "type": "string",
          "pattern": "^[a-z0-9_]{1,32}$",
          "description": "App builder code"
        },
        "s": {
          "type": "array",
          "items": {
            "type": "string",
            "pattern": "^[a-z0-9_]{1,32}$"
          },
          "description": "Service builder codes"
        },
        "w": {
          "type": "string",
          "pattern": "^[a-z0-9_]{1,32}$",
          "description": "Wallet builder code"
        }
      },
      "additionalProperties": false
    }
  }
}

Provenance

Seen in the source catalog

2026-06-26 17:24Z

Last indexed by Roundhouse

2026-07-26 15:50Z

Last enriched (probe, favicon, geo)

2026-09-13 16:15Z

x402 version

2

Max timeout

300s

Liveness probe

HTTP 402