CrossFin

Connect Remote server

claude mcp add --transport http crossfin https://crossfin.dev/api/mcp

{
  "mcpServers": {
    "crossfin": {
      "url": "https://crossfin.dev/api/mcp"
    }
  }
}

{
  "servers": {
    "crossfin": {
      "type": "http",
      "url": "https://crossfin.dev/api/mcp"
    }
  }
}

Settings > Connectors > Add custom connector
URL: https://crossfin.dev/api/mcp

Tools 16 found in our last check

• get_kimchi_premium

  Free preview of Route Spread — real-time price spread between Korean and global crypto exchanges (top 3 pairs)

• list_exchange_fees

  Trading fees, withdrawal fees, and transfer times for all supported exchanges (Bithumb, Upbit, Coinone, GoPax, bitFlyer, WazirX, bitbank, Indodax, Bitkub, Binance, OKX, Bybit, KuCoin, Coinbase)

• compare_exchange_prices

  Compare Bithumb KRW prices vs Binance USD prices for tracked coins with transfer-time estimates

• search_services

  Search the CrossFin service registry (184 services) by keyword

• list_services

  List services from the CrossFin registry with optional category filter

• get_service

  Get detailed information about a specific service by ID

• list_categories

  List all service categories with counts

• get_analytics

  CrossFin gateway usage analytics — total calls, top services, recent activity

• get_guide

  Complete CrossFin API guide — services, pricing, x402 payment flow, code examples

• find_optimal_route

  Find cheapest/fastest path across 14 exchanges (incl. Coinbase, SUI, APT) using 13 bridge coins. Paid: $0.10 via x402. Requires local install with EVM_PRIVATE_KEY.

• call_paid_service

  Call any CrossFin paid API with automatic x402 USDC payment. Requires local install with EVM_PRIVATE_KEY.

• create_wallet

  Create a wallet in the local CrossFin ledger. Requires local install.

• get_balance

  Get wallet balance (KRW). Requires local install.

• transfer

  Transfer funds between wallets (KRW). Requires local install.

• list_transactions

  List transactions. Requires local install.

• set_budget

  Set daily spend limit (KRW). Requires local install.

Details

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• RightCard

  Which of your credit cards to use at any store, from verified bank data. No bank login.

• Africa Compliance Data

  African holidays, business days, VAT, withholding tax, tax treaties, tax IDs and filing deadlines

• BusCalc Business Calculators

  Business calculators, data lookups, replayable receipts, and documentation for enterprise pilots.

• CarLoanMath

  US car loan math: monthly payment, compare loans, max price for your budget, amortization. Free.

• InfinityVolume

  Dollar volume across 13 stock markets and US sectors, against each one's own normal. No prices.

• xytara MCP Executor

  Pay-per-call MCP tools and signed on-chain attestations: 20 free/day, then x402 or a spend key.