Connect

8 clients · secrets stay placeholders

JSON (mcpServers)Claude CodeCodexOpenCodeCursorVS CodeGemini CLIGoose

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

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

[mcp_servers.crossfin]
url = "https://crossfin.dev/api/mcp"

{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "crossfin": {
      "type": "remote",
      "url": "https://crossfin.dev/api/mcp",
      "enabled": true
    }
  }
}

{
  "mcpServers": {
    "crossfin": {
      "type": "http",
      "url": "https://crossfin.dev/api/mcp"
    }
  },
  "deeplink": "cursor://anysphere.cursor-deeplink/mcp/install?name=crossfin&config=eyJ0eXBlIjoiaHR0cCIsInVybCI6Imh0dHBzOi8vY3Jvc3NmaW4uZGV2L2FwaS9tY3AifQ%3D%3D"
}

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

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

extensions:
  "crossfin":
    enabled: true
    name: "crossfin"
    type: streamable_http
    uri: "https://crossfin.dev/api/mcp"
    timeout: 300

Quality 77 / 100good

protocol75 · weight 25

warn
protocol.modernnewest supported version is 2025-11-25; 2026-07-28 not supported, older versions are deprecated until 2027-07-28
n/a
protocol.statelessonly applies to 2026-07-28 servers
pass
protocol.transportstreamable HTTP
n/a
protocol.list_ttlonly applies to 2026-07-28 servers

authorizationn/a · weight 15

n/a
auth.prm, auth.as_metadata, auth.cimdno remote uses OAuth
n/a
auth.secret_in_urlno templated URL

tool hygiene71 · weight 30

pass
tools.descriptionsevery tool has a description
pass
tools.description_lengthdescriptions are concise
pass
tools.schemasevery tool has an object input schema
fail
tools.annotationsno tool declares readOnlyHint or destructiveHint, so clients cannot tell safe calls from risky ones
fail
tools.directory_hintsno tool declares all four of readOnlyHint, destructiveHint, idempotentHint and openWorldHint; missing: list_transactions (readOnlyHint, destructiveHint, idempotentHint, openWorldHint); list_exchange_fees (readOnlyHint, destructiveHint, idempotentHint, openWorldHint); get_analytics (readOnlyHint, destructiveHint, idempotentHint, openWorldHint); …
pass
tools.token_costabout 1,030 tokens to load every tool
pass
tools.api_dumptools are not a one-to-one API dump

stability100 · weight 15

pass
stability.changesno tool changes in 30 days
pass
stability.rug_pullno tool changed its meaning under the same name

dependencies67 · weight 15

pass
deps.known_vulnsno known advisory in 116 resolved packages
fail
deps.mcp_sdk_version@modelcontextprotocol/sdk 1.30.1 has 1 known advisory (GHSA-6qxp-vccf-f47h); update @modelcontextprotocol/sdk to 1.31.0 or later
pass
deps.resolvable[email protected] resolved: 116 packages

16 tools, about 1,030 tokens to load them all · tool set 7c5048084e87 · checked 2026-10-20 18:38 UTC

Tool changes

No tool definition changes recorded. A server's first observation is its baseline; later probes record what changes.

Checks run on what our credential-free, read-only probes observe; tools are never called and no code audit is performed. How it is computed.

Trust 82 / 100

provenance80

liveness98

freshness45

hygiene100

+repository +namespace-matches-repo +reachable +uptime-96% -stale-237d

Derived from observable signals (official registry feed and our own credential-free probes); no code audit performed. How it is computed.

Dependencies

[email protected] npm115 dependencies, resolved · MCP SDK @modelcontextprotocol/sdk 1.30.1 · advisories checked 2026-10-19

advisory	severity	package	fixed in
GHSA-6qxp-vccf-f47hMCP TypeScript SDK: OAuth client could send credentials to an authorization server chosen by the MCP server	high	`@modelcontextprotocol/[email protected]`MCP SDK, direct	fixed in `1.31.0`

Dependency graphs from deps.dev; advisories from OSV.dev, including the GitHub Advisory Database and the PyPI Advisory Database; all CC BY 4.0. The graph is what a clean install of this version resolves today; nothing was installed or run. How it is checked.

Endpoints

remote	auth	reachable	uptime 30d	p50	protocol	last ok
`https://crossfin.dev/api/mcp` streamable-http	none	yes	96%	1741 ms	2025-11-25	2026-10-20

package	registry	version	runtime	secrets
`crossfin-mcp`	npm	1.18.0	–	`EVM_PRIVATE_KEY`

Tools (16)

`call_paid_service`	Call any CrossFin paid API with automatic x402 USDC payment. Requires local install with EVM_PRIVATE_KEY.
`compare_exchange_prices`	Compare Bithumb KRW prices vs Binance USD prices for tracked coins with transfer-time estimates
`create_wallet`	Create a wallet in the local CrossFin ledger. Requires local install.
`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.
`get_analytics`	CrossFin gateway usage analytics — total calls, top services, recent activity
`get_balance`	Get wallet balance (KRW). Requires local install.
`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
`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
`list_transactions`	List transactions. Requires local install.
`search_services`	Search the CrossFin service registry (184 services) by keyword
`set_budget`	Set daily spend limit (KRW). Requires local install.
`transfer`	Transfer funds between wallets (KRW). Requires local install.

Schemas: list_tools.

Similar MCP servers

Official server.json

{
  "name": "io.github.bubilife1202/crossfin",
  "title": "CrossFin",
  "$schema": "https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json",
  "remotes": [
    {
      "url": "https://crossfin.dev/api/mcp",
      "type": "streamable-http"
    }
  ],
  "version": "1.18.0",
  "packages": [
    {
      "version": "1.18.0",
      "transport": {
        "type": "stdio"
      },
      "identifier": "crossfin-mcp",
      "registryType": "npm",
      "environmentVariables": [
        {
          "name": "EVM_PRIVATE_KEY",
          "format": "string",
          "isSecret": true,
          "description": "Base wallet private key for x402 USDC payments (only needed for paid tools)"
        },
        {
          "name": "CROSSFIN_API_URL",
          "format": "string",
          "description": "API base URL (default: https://crossfin.dev)"
        },
        {
          "name": "CROSSFIN_LEDGER_PATH",
          "format": "string",
          "description": "Local ledger file path (default: ~/.crossfin/ledger.json)"
        }
      ]
    }
  ],
  "repository": {
    "url": "https://github.com/bubilife1202/crossfin",
    "source": "github",
    "subfolder": "apps/mcp-server"
  },
  "description": "AI agent access to Asian crypto markets. Korean exchange routing and x402 paid APIs."
}