CrossFin is a remote MCP server that gives an AI agent 16 tools, among them call_paid_service, compare_exchange_prices, create_wallet. It answers at https://crossfin.dev/api/mcp over streamable HTTP, and it listed its tools to an anonymous client, so no sign-in was needed for that. Our probes reached it 6 of 6 times since 11 September 2026; the last check, on 21 October 2026, succeeded.
AI agent access to Asian crypto markets. Korean exchange routing and x402 paid APIs.
Description as the publisher wrote it.
| Tool | What it does |
|---|---|
call_paid_service | Call any CrossFin paid API with automatic x402 USDC payment. Requires local install with EVM_PRIVATE_KEY. Inputs: serviceId, url, params |
compare_exchange_prices | Compare Bithumb KRW prices vs Binance USD prices for tracked coins with transfer-time estimates Inputs: coin |
create_wallet | Create a wallet in the local CrossFin ledger. Requires local install. Inputs: label, initialDepositKrw |
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. Inputs: from, to, amount, strategy |
get_analytics | CrossFin gateway usage analytics — total calls, top services, recent activity |
get_balance | Get wallet balance (KRW). Requires local install. Inputs: walletId |
get_guide | Complete CrossFin API guide — services, pricing, x402 payment flow, code examples |
get_kimchi_premium | Free preview of Route Spread — real-time price spread between Korean and global crypto exchanges (top 3 pairs) |
get_service | Get detailed information about a specific service by ID Inputs: serviceId |
list_categories | List all service categories with counts |
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) |
list_services | List services from the CrossFin registry with optional category filter Inputs: category, limit |
list_transactions | List transactions. Requires local install. Inputs: walletId, limit |
search_services | Search the CrossFin service registry (184 services) by keyword Inputs: query |
set_budget | Set daily spend limit (KRW). Requires local install. Inputs: dailyLimitKrw |
transfer | Transfer funds between wallets (KRW). Requires local install. Inputs: fromWalletId, toWalletId, amountKrw |
Every block below points at https://crossfin.dev/api/mcp. Pick your client and copy.
claude mcp add --transport http crossfin https://crossfin.dev/api/mcp
{
"mcpServers": {
"crossfin": {
"command": "npx",
"args": ["-y", "mcp-remote", "https://crossfin.dev/api/mcp"]
}
}
}{
"mcpServers": {
"crossfin": {
"url": "https://crossfin.dev/api/mcp"
}
}
}{
"servers": {
"crossfin": {
"type": "http",
"url": "https://crossfin.dev/api/mcp"
}
}
}{
"context_servers": {
"crossfin": {
"url": "https://crossfin.dev/api/mcp"
}
}
}{
"mcpServers": {
"crossfin": {
"serverUrl": "https://crossfin.dev/api/mcp"
}
}
}{
"mcpServers": {
"crossfin": {
"url": "https://crossfin.dev/api/mcp"
}
}
}name: CrossFin
version: 0.0.1
schema: v1
mcpServers:
- name: CrossFin
type: streamable-http
url: https://crossfin.dev/api/mcp{
"mcpServers": {
"crossfin": {
"httpUrl": "https://crossfin.dev/api/mcp"
}
}
}{
"mcpServers": {
"crossfin": {
"type": "http",
"url": "https://crossfin.dev/api/mcp"
}
}
}{
"mcpServers": {
"crossfin": {
"url": "https://crossfin.dev/api/mcp"
}
}
}goose://extension?url=https%3A%2F%2Fcrossfin.dev%2Fapi%2Fmcp&type=streamable_http&id=crossfin&name=CrossFin
It answered our last check on 21 October 2026 in 1958 ms. Over 6 checks since 11 September 2026 it answered 6. Status here comes from Neuronto's own probes, not from the publisher.
16, as returned by the server's own tools/list on 13 September 2026: call_paid_service, compare_exchange_prices, create_wallet, find_optimal_route, get_analytics, get_balance, get_guide, get_kimchi_premium, and 8 more.
It answered our last check on 21 October 2026 in 1958 ms. Over 6 checks since 11 September 2026 it answered 6.
Put the server under mcpServers in ~/.cursor/mcp.json with the URL https://crossfin.dev/api/mcp. The exact JSON is above, with the same setup for Claude Code, Claude Desktop, VS Code, Windsurf, Zed, Gemini CLI and the rest.
It listed its tools to an anonymous client, so reading the tool list needs no key. Individual tools can still ask for credentials in their own inputs.
Publisher: io.github.bubilife1202. Endpoint host: crossfin.dev. ARD identifier: urn:air:io.github.bubilife1202:mcp:crossfin.
First indexed 10 September 2026. The tools are exactly what the server returned; nothing on this page
is inferred from its name. Ranking in Neuronto search is never for sale.