CrossFin
NPM · CROSSFIN-MCP · 2 COMPONENTS · SCANNED SEP 21
AI agent access to Asian crypto markets. Korean exchange routing and x402 paid APIs.
Available components
How this component scores in each security and reliability category. Every signal is checked automatically from public evidence about the published package, including repeated runs of it in an isolated sandbox, and we only credit what we can confirm. How we score → Why this is hard to score →
Supply Chain Security99
- No malware found by supply-chain analysis.Pass
- No known CVEs affecting this package version or its production dependencies.Pass
- No install/post-install scripts declared.Pass
- 31 of 114 dependencies flagged as unhealthy. View diagnostics → Partial
Provenance & Transparency32
- Source repository is publicly reachable at the declared URL. View diagnostics → Pass
- Provenance check failed: no build-provenance attestation is published. See how to fix → View diagnostics → Fail
- License check failed: the license (UNLICENSED) isn't a recognized OSI-approved license. See how to fix → Fail
- Actively maintained (last published 207 days ago).Pass
- Disclosure check failed: no security disclosure policy was found in the source repository. See how to fix → Fail
Schema Quality & AI Usability74
- AI-judged instruction clarity (good).Pass
- Tool/resource definitions use about 952 tokens (~59/item across 16 items; 16 tools + 0 resources), lean.Pass
- Usage-examples check failed: none of the tools include examples. See how to fix → Fail
Stability & Change Management93
- Stability observed for 28 of 30 days with no destabilising changes; credit accrues until the full window elapses.Partial
Tool Coverage95
- 100% of tools have a non-trivial description (not blank, and not just the tool's name).Pass
- 83% of tool parameters carry a description.Partial
- Structured output schemas are declared (25% of tools); any adoption earns full credit.Pass
Tool Safety75
- No prompt-injection markers were found in the server instructions, tool names or descriptions we captured.Pass
- 0 of 1 tool(s) whose name or description implies an irreversible operation declare an MCP destructiveHint annotation; "transfer" implies "transfer" and declares no destructiveHint at all, which the MCP spec reads as destructive by default. See how to fix → Fail
- An AI judge read all 16 captured unit(s) of tool text and found none that tries to manipulate the model reading it.Pass
Capabilities100
- Implements a supported MCP spec version (2025-11-25); the latest is 2026-07-28.Pass
How do I install the CrossFin MCP server?
CrossFin runs locally as an npm package, launched with npx -y crossfin-mcp. Ready-made configuration for Claude, Cursor, VS Code, Codex and 5 more is on this page, copied from each client's own documentation.
npm · crossfin-mcp
claude mcp add bubilife1202-crossfin -- npx -y crossfin-mcp
{
"mcpServers": {
"bubilife1202-crossfin": {
"command": "npx",
"args": [
"-y",
"crossfin-mcp"
]
}
}
} {
"servers": {
"bubilife1202-crossfin": {
"command": "npx",
"args": [
"-y",
"crossfin-mcp"
]
}
}
} codex mcp add bubilife1202-crossfin -- npx -y crossfin-mcp
{
"$schema": "https://opencode.ai/config.json",
"mcp": {
"bubilife1202-crossfin": {
"type": "local",
"command": [
"npx",
"-y",
"crossfin-mcp"
],
"enabled": true
}
}
} openclaw mcp add bubilife1202-crossfin --command npx --arg -y --arg crossfin-mcp
mcp_servers:
bubilife1202-crossfin:
command: "npx"
args: ["-y", "crossfin-mcp"] {
"McpServers": {
"bubilife1202-crossfin": {
"Transport": "stdio",
"Command": "npx",
"Arguments": [
"-y",
"crossfin-mcp"
]
}
}
} assistant mcp add bubilife1202-crossfin -t stdio -c npx -a -y crossfin-mcp
{
"mcpServers": {
"bubilife1202-crossfin": {
"command": "npx",
"args": [
"-y",
"crossfin-mcp"
]
}
}
} Every change we have recorded for this component, newest first. Security-relevant changes are always shown. ▲ marks a change for the better, ▼ a change for the worse; unmarked changes are neutral.
- 21 Sept 26 +1
- Security disclosure: unverified → fail ▼ functional
- 20 Sept 26 0
- Security disclosure: fail → unverified ▼ functional
- 19 Sept 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 83 to 87. That category is still filling its 30-day observation window: 25 days of observed history at the previous scan, 26 at this one. The score rises as the window fills, whether or not the server changes.
- 17 Sept 26 −3
- Stability: pass → 0.80 functional
- 16 Sept 26 +1
- Stability: 0.97 → pass security
- 14 Sept 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 90 to 93. That category is still filling its 30-day observation window: 27 days of observed history at the previous scan, 28 at this one. The score rises as the window fills, whether or not the server changes.
- 12 Sept 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 83 to 87. That category is still filling its 30-day observation window: 25 days of observed history at the previous scan, 26 at this one. The score rises as the window fills, whether or not the server changes.
- 10 Sept 26 −3
- Stability: pass → 0.80 functional
Diagnostic detail from the automated scan of this channel: what the scanner observed at each step, so you can see exactly where a check passed or failed. It is informational only and never changes the trust score.
Captured 21 Sept 2026 · Analysed npm/crossfin-mcp@1.18.0
Provenance No attestation
The registry publishes no build provenance for this version, so there is nothing to verify.
| Result | No attestation |
|---|---|
| Ecosystem | npm |
Background: How many MCP packages publish verified provenance →
Dependencies 114 packages
| Packages resolved | 114 |
|---|---|
| Stale | 31 |
| Tree resolution | Complete |
Background: SBOMs and build attestations, explained →
The tools this component advertises to a client, with an estimated token cost for each. Expand a tool to see its parameters and schema. The per-tool counts are indicative and are not scored directly; the schema's total context footprint is one signal in Schema Quality & AI Usability. A tool's description is untrusted text the model reads on every call, which is what makes this list a security surface and not just an inventory: how tool poisoning works →
call_paid_service Call paid service ~101
Call a CrossFin paid API endpoint with automatic x402 USDC payment on Base. Requires EVM_PRIVATE_KEY env var with funded wallet. Returns the API response data plus payment proof (txHash, basescan link).
| Name | Type | Req | Description |
|---|---|---|---|
| params | object | – | Query parameters |
| serviceId | string | – | Service ID from registry — looks up endpoint/price automatically |
| url | string | – | Direct URL to call (use this OR serviceId, not both) |
No output schema declared.
No examples provided.
compare_exchange_prices Compare exchange prices ~68
Compare Bithumb KRW prices vs global USD prices (Binance) for tracked coins. Shows transfer-time estimates and which coins are bridge-capable.
| Name | Type | Req | Description |
|---|---|---|---|
| coin | string | – | Coin symbol to compare (e.g. "BTC", "XRP"). Omit for all supported coins. |
No output schema declared.
No examples provided.
create_wallet Create wallet ~43
Create a wallet in the local CrossFin ledger
| Name | Type | Req | Description |
|---|---|---|---|
| initialDepositKrw | number | – | Optional initial deposit (KRW) |
| label | string | yes | Wallet label |
| Name | Type | Req | Description |
|---|---|---|---|
| balanceKrw | number | yes | – |
| label | string | yes | – |
| walletId | string | yes | – |
No examples provided.
find_optimal_route Find optimal route ~237
Find the cheapest/fastest path to move money across Asian exchanges. Example: KRW on Bithumb → USDC on Binance. Supports 14 exchanges (Bithumb, Upbit, Coinone, GoPax, bitFlyer, WazirX, bitbank, Indodax, Bitkub, Binance, OKX, Bybit, KuCoin, Coinbase) and 13 bridge coins (incl. KAIA, SUI, APT). Paid tool: calls /api/premium/route/find ($0.10) via x402 (requires EVM_PRIVATE_KEY).
| Name | Type | Req | Description |
|---|---|---|---|
| amount | number | yes | Amount in source currency (e.g. 1000000 for ₩1,000,000) |
| from | string | yes | Source in exchange:currency format (e.g. "bithumb:KRW", "upbit:KRW") |
| strategy | string | – | Routing strategy: cheapest (default), fastest, or balanced |
| to | string | yes | Destination in exchange:currency format (e.g. "binance:USDC", "binance:BTC") |
No output schema declared.
No examples provided.
get_analytics Get analytics ~25
Get CrossFin gateway usage analytics — total calls, top services, recent activity
Input schema present but exposes no named parameters.
No output schema declared.
No examples provided.
get_balance Get balance ~27
Get the balance (KRW) of a wallet
| Name | Type | Req | Description |
|---|---|---|---|
| walletId | string | yes | – |
| Name | Type | Req | Description |
|---|---|---|---|
| balanceKrw | number | yes | – |
| walletId | string | yes | – |
No examples provided.
get_guide Get CrossFin guide ~37
Get the complete CrossFin API guide — what services are available, how to search, pricing, x402 payment flow, and code examples
Input schema present but exposes no named parameters.
No output schema declared.
No examples provided.
get_kimchi_premium Get route spread ~37
Get free preview of the Route Spread index — real-time price spread between Korean and global crypto exchanges (top 3 pairs)
Input schema present but exposes no named parameters.
No output schema declared.
No examples provided.
get_service Get service ~40
Get detailed information about a specific service by ID
| Name | Type | Req | Description |
|---|---|---|---|
| serviceId | string | yes | Service ID (e.g. "crossfin_kimchi_premium") |
No output schema declared.
No examples provided.
list_categories List categories ~15
List all service categories with counts
Input schema present but exposes no named parameters.
No output schema declared.
No examples provided.
list_exchange_fees List exchange fees ~71
Show 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)
Input schema present but exposes no named parameters.
No output schema declared.
No examples provided.
list_services List services ~59
List services from the CrossFin registry with optional category filter
| Name | Type | Req | Description |
|---|---|---|---|
| category | string | – | Category filter (e.g. "crypto-data", "ai", "tools") |
| limit | integer | – | Max results (default 20, max 100) |
No output schema declared.
No examples provided.
list_transactions List transactions ~42
List transactions (optionally filtered by wallet)
| Name | Type | Req | Description |
|---|---|---|---|
| limit | number | – | Max items (1..200). Default 50 |
| walletId | string | – | – |
No output schema declared.
No examples provided.
search_services Search services ~43
Search the CrossFin service registry for x402 services by keyword
| Name | Type | Req | Description |
|---|---|---|---|
| query | string | yes | Search keyword (e.g. "crypto", "translate", "korea") |
No output schema declared.
No examples provided.
set_budget Set budget ~43
Set a daily spend limit for the local ledger (KRW)
| Name | Type | Req | Description |
|---|---|---|---|
| dailyLimitKrw | number|null | yes | Daily budget limit (KRW). Use null to clear. |
| Name | Type | Req | Description |
|---|---|---|---|
| dailyLimitKrw | number|null | yes | – |
No examples provided.
transfer Transfer ~64
Transfer funds between wallets (KRW)
| Name | Type | Req | Description |
|---|---|---|---|
| amountKrw | number | yes | Transfer amount in KRW |
| fromWalletId | string | yes | – |
| memo | string | – | Memo |
| rail | string | – | Payment rail |
| toWalletId | string | yes | – |
| Name | Type | Req | Description |
|---|---|---|---|
| fromBalanceKrw | number | yes | – |
| toBalanceKrw | number | yes | – |
| transactionId | string | yes | – |
No examples provided.
What is the CrossFin MCP server?
CrossFin is an MCP server listed in the public MCP registry as io.github.bubilife1202/crossfin. AI agent access to Asian crypto markets. Korean exchange routing and x402 paid APIs. This page covers its npm package (crossfin-mcp).
Is the CrossFin MCP server safe to use?
CrossFin scores 79 out of 100 on VerifyMCP. We found no known CVEs affecting it as of 21 September 2026. It declares no install or post-install scripts. That is a record of what we were able to check automatically, not an endorsement. The category breakdown on this page shows every signal behind the number, including the ones we could not confirm.
What tools does the CrossFin MCP server expose?
CrossFin exposes 16 tools: create_wallet, get_balance, transfer, list_transactions, set_budget, and 11 more. Their descriptions and schemas cost roughly 952 tokens of context every time the server is loaded.
Is the CrossFin MCP server still maintained?
CrossFin is still listed as active in the MCP registry. We last reached this channel on 21 September 2026. Those dates come from our own scans of the registry and the channel itself, not from anything the publisher announced.
What licence is the CrossFin MCP server under?
CrossFin declares the UNLICENSED licence, which is not on the OSI-approved list. Read the terms before using it at work, and note this covers the source only, not the cost of any service it calls.