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CrossFin MCP Server

by bubilife1202 Your server? Claim it
answering

CrossFin is answering right now. Last checked 8 min ago. 88 installs a week from npm. It exposes 16 tools. Last commit 1 Nov 2026.

AI agent access to Asian crypto markets. Korean exchange routing and x402 paid APIs.

Installs per day peak 22 · avg 7 · +20% w/w
a month agotoday
Uptime history 90 days of history · worst day 90%
90 days agonow
100.0%
Uptime 24h
91 of 91 checks
16
Tools
read from the server
1952 ms
Response time
average over 24h
88
Installs / week
npm and PyPI

What the code does

We read the source, 1 d ago · tools taken from the live server · rules 995398eba69f

Capabilities

What this server is able to do. For an MCP server this is often the job itself — a terminal server runs commands because that is what it is for. Listed so you know what you are plugging in, not as an accusation.

Sends data to a third-party sink apps/api/src/routes/admin.ts:151
  const response = await fetchWithTimeout(`https://api.telegram.org/bot${botToken}/setWebhook`, {

Is this your server and something here is wrong? Tell us — corrections are free and do not require a plan.

This code can reach further than it looks

We found places where it runs commands, builds paths or queries from values it is given. None of that is a flaw by itself — it becomes one when the code changes, and code changes quietly between releases. We re-read it on every one.

Three servers free · no card

Connect this server

Endpoint below is the one we actually reach during checks — not the one copied from a README. Last verified 8 min ago.

run in your terminal
claude mcp add crossfin --transport http https://crossfin.dev/api/mcp
Settings → Connectors → Add custom connector, then paste this address
https://crossfin.dev/api/mcp
~/.codex/config.toml
[mcp_servers.crossfin]
url = "https://crossfin.dev/api/mcp"
.cursor/mcp.json
{
  "mcpServers": {
    "crossfin": {
      "url": "https://crossfin.dev/api/mcp"
    }
  }
}
.vscode/mcp.json
{
  "servers": {
    "crossfin": {
      "type": "http",
      "url": "https://crossfin.dev/api/mcp"
    }
  }
}

Available tools 16

Read directly from the server with tools/list, grouped by what they act on. If a tool disappears, we record the date.

services
list_services
List services from the CrossFin registry with optional category filter
search_services
Search the CrossFin service registry (184 services) by keyword
analytics
get_analytics
CrossFin gateway usage analytics — total calls, top services, recent activity
balance
get_balance
Get wallet balance (KRW). Requires local install.
budget
set_budget
Set daily spend limit (KRW). Requires local install.
call
call_paid_service
Call any CrossFin paid API with automatic x402 USDC payment. Requires local install with EVM_PRIVATE_KEY.
categories
list_categories
List all service categories with counts
compare
compare_exchange_prices
Compare Bithumb KRW prices vs Binance USD prices for tracked coins with transfer-time estimates
exchange
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)
guide
get_guide
Complete CrossFin API guide — services, pricing, x402 payment flow, code examples
kimchi
get_kimchi_premium
Free preview of Route Spread — real-time price spread between Korean and global crypto exchanges (top 3 pairs)
optimal
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.
service
get_service
Get detailed information about a specific service by ID
transactions
list_transactions
List transactions. Requires local install.
transfer
transfer
Transfer funds between wallets (KRW). Requires local install.
wallet
create_wallet
Create a wallet in the local CrossFin ledger. Requires local install.

Endpoints

URLTransportStateLatencyChecked
https://crossfin.dev/api/mcp streamable-http answering 723 ms 8 min ago

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CrossFin — questions

Answers built from our own checks of this server.

What can CrossFin do?
It exposes 16 tools, read directly from the server on our last check. Among them: call_paid_service, compare_exchange_prices, create_wallet, find_optimal_route, get_analytics, get_balance and 10 more. The full list with descriptions is on this page — we take it from the server itself via tools/list, not from a README. How MCP servers expose tools in the first place →
Is CrossFin working right now?
We send a real MCP handshake every 15 minutes. Over the last 24 hours 91 of 91 checks got a reply (100.0%), average response time 1952 ms. The bar chart above shows every period we have measured.
How do I connect CrossFin?
Copy the ready config from this page. We generate it for Claude Code, Claude Desktop, Codex, Cursor and VS Code, each in the form that client actually reads. It is a remote server, so there is nothing to install — the client connects to the address.
Does CrossFin need an API key?
No. CrossFin completed a full MCP handshake with us as an anonymous client and listed its tools without asking for anything. All 16 of them are readable on this page. This is what we observed, not what the docs claim.
How many people use CrossFin?
The npm package crossfin-mcp was installed 88 times in the last week. Week over week that is +20%. We show installs rather than GitHub stars on purpose: a star is a bookmark, an install is someone actually running it.
Is CrossFin open source?
No, and the distinction matters: its licence is declared as unlicensed (all rights reserved). That makes it source-available — you can read the code, but the terms are the author's own, not one of the recognised open-source licences. Read them before you build on it.