CrossFin
REMOTE · CROSSFIN.DEV · 2 COMPONENTS
AI agent access to Asian crypto markets. Korean exchange routing and x402 paid APIs.
Available components
Last scanned (16 hours ago)
Scores higher than 54% of remote servers
Reachable. Last reached 5 Nov 2026.
Category Crypto and Web3
How this component scores in each security and reliability category. Every signal is checked automatically against the live server, and we only credit what we can confirm. How we score → Why this is hard to score →
Endpoint Security46
- The endpoint's TLS certificate is valid, in date, and uses a strong key. View diagnostics → Pass
- Authorisation not fully verified: no authorisation is required to call this server, and 16 tool(s) never declared a destructiveHint. The MCP spec treats an absent hint as destructive by default, so we cannot call this surface safe. See how to fix → View diagnostics → Unverified
- HTTPS check failed: the endpoint is reachable over plaintext HTTP. See how to fix → View diagnostics → Fail
- HSTS check failed: the Strict-Transport-Security header is absent. See how to fix → View diagnostics → Fail
- DNSSEC check failed: this domain isn't protected by DNSSEC. See how to fix → View diagnostics → Fail
Transport & Reachability100
- Verified streamable-http transport via a live MCP handshake. View diagnostics → Pass
Schema Quality & AI Usability69
- AI-judged instruction clarity (good).Pass
- Tool/resource definitions use about 637 tokens (~39/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 Management100
- No destabilizing schema changes in the last 30 days.Pass
Tool Coverage73
- 100% of tools have a non-trivial description (not blank, and not just the tool's name).Pass
- 19% of tool parameters carry a description.Partial
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
Checks we ran (12)
- TLS certificate
- HTTPS
- HSTS header
- DNSSEC
- Transport
- Schema quality
- Stability
- Tool coverage
- Injection markers
- Destructive annotations
- Judged manipulation
- MCP protocol
Checks we could not complete (1)
These are gaps on our side, not findings about this hosted endpoint. We only credit what we can confirm, so a category made up entirely of them scores 0.
- Authorization in Endpoint SecurityAuthorisation not fully verified: no authorisation is required to call this server, and 16 tool(s) never declared a destructiveHint. The MCP spec treats an absent hint as destructive by default, so we cannot call this surface safe.
Does not apply to this hosted endpoint (2)
- Supply Chain SecurityScored on package channels only. This is a hosted endpoint, so there is nothing to install or inspect.
- Provenance & TransparencyScored on package channels only. This is a hosted endpoint, so there is nothing to install or inspect.
The score does not measure everything. What the score does not measure →
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.
- 28 Sept 26 0
- We updated how we score, so this day's move reflects our rubric, not a change to the server See what changed → functional
- 25 Sept 26 0
- We updated how we score, so this day's move reflects our rubric, not a change to the server See what changed → functional
- 26 Aug 26 0
- We updated how we score, so this day's move reflects our rubric, not a change to the server See what changed → functional
- 25 Aug 26 0
- Stability: 0.97 → pass security
- 11 Aug 26 0
- We updated how we score, so this day's move reflects our rubric, not a change to the server See what changed → functional
- 31 Jul 26 0
- We updated how we score, so this day's move reflects our rubric, not a change to the server See what changed → functional
- 30 Jul 26 0
- We updated how we score, so this day's move reflects our rubric, not a change to the server See what changed → functional
- 27 Jul 26 0
- We updated how we score, so this day's move reflects our rubric, not a change to the server See what changed → 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 5 Nov 2026 · Probed https://crossfin.dev/api/mcp
TLS valid
Negotiated TLS 1.3 with TLS_AES_128_GCM_SHA256 .
| Subject | Issuer | Valid from | Valid until | Key | Signature | Serial |
|---|---|---|---|---|---|---|
| CN=crossfin.dev | CN=WE1,O=Google Trust Services,C=US | 7 Oct 2026 | 5 Jan 2027 | ECDSA 256 | ECDSA-SHA256 | 8d980ec40e568bfb13ca76a81354baef |
| SANs: crossfin.dev | ||||||
| CN=WE1,O=Google Trust Services,C=US (CA) | CN=GTS Root R4,O=Google Trust Services LLC,C=US | 13 Dec 2023 | 20 Feb 2029 | ECDSA 256 | ECDSA-SHA384 | 7ff31977972c224a76155d13b6d685e3 |
| CN=GTS Root R4,O=Google Trust Services LLC,C=US (CA) | CN=GlobalSign Root CA,OU=Root CA,O=GlobalSign nv-sa,C=BE | 15 Nov 2023 | 28 Jan 2028 | ECDSA 384 | SHA256-RSA | 7fe530bf331343bedd821610493d8a1b |
Background: What to check on a remote MCP endpoint →
DNSSEC insecure
Validation of crossfin.dev. — Not signed
| Zone | DS | Keys | Algorithms | Outcome |
|---|---|---|---|---|
| . | Trust anchor | 20326, 38696 | 8, 8 | Verified |
| dev. | DS published | 60074 | 8 | Verified |
| crossfin.dev. | No DS | Unsigned (proven) parent-signed NSEC/NSEC3 proves an unsigned delegation |
Authentication No authorisation required
The endpoint answered without asking for a token. Anyone who knows the URL can reach it.
| Result | No authorisation required |
|---|---|
| HTTP status | 200 |
Background: How OAuth 2.1 works in the 2026 MCP spec →
Transports 2 probes
| Transport | URL | Outcome | Status | Location |
|---|---|---|---|---|
| streamable-http | https://crossfin.dev/api/mcp | Verified | 200 | |
| http (plaintext) | http://crossfin.dev/api/mcp | Served over HTTP | 200 |
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 ~54
Call any CrossFin paid API with automatic x402 USDC payment. Requires local install with EVM_PRIVATE_KEY.
| Name | Type | Req | Description |
|---|---|---|---|
| params | object | – | – |
| serviceId | string | – | – |
| url | string | – | – |
No output schema declared.
No examples provided.
compare_exchange_prices ~49
Compare Bithumb KRW prices vs Binance USD prices for tracked coins with transfer-time estimates
| Name | Type | Req | Description |
|---|---|---|---|
| coin | string | – | Coin symbol (e.g. BTC, XRP). Omit for all. |
No output schema declared.
No examples provided.
create_wallet ~39
Create a wallet in the local CrossFin ledger. Requires local install.
| Name | Type | Req | Description |
|---|---|---|---|
| initialDepositKrw | number | – | – |
| label | string | yes | – |
No output schema declared.
No examples provided.
find_optimal_route ~104
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.
| Name | Type | Req | Description |
|---|---|---|---|
| amount | number | yes | – |
| from | string | yes | Source (e.g. bithumb:KRW) |
| strategy | string | – | – |
| to | string | yes | Destination (e.g. binance:USDC) |
No output schema declared.
No examples provided.
get_analytics ~24
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 ~27
Get wallet balance (KRW). Requires local install.
| Name | Type | Req | Description |
|---|---|---|---|
| walletId | string | yes | – |
No output schema declared.
No examples provided.
get_guide ~27
Complete CrossFin API guide — services, pricing, x402 payment flow, code examples
Input schema present but exposes no named parameters.
No output schema declared.
No examples provided.
get_kimchi_premium ~34
Free preview of Route Spread — 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 ~26
Get detailed information about a specific service by ID
| Name | Type | Req | Description |
|---|---|---|---|
| serviceId | string | yes | – |
No output schema declared.
No examples provided.
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 ~70
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 ~34
List services from the CrossFin registry with optional category filter
| Name | Type | Req | Description |
|---|---|---|---|
| category | string | – | – |
| limit | integer | – | – |
No output schema declared.
No examples provided.
list_transactions ~30
List transactions. Requires local install.
| Name | Type | Req | Description |
|---|---|---|---|
| limit | number | – | – |
| walletId | string | – | – |
No output schema declared.
No examples provided.
search_services ~30
Search the CrossFin service registry (184 services) by keyword
| Name | Type | Req | Description |
|---|---|---|---|
| query | string | yes | Search keyword |
No output schema declared.
No examples provided.
set_budget ~28
Set daily spend limit (KRW). Requires local install.
| Name | Type | Req | Description |
|---|---|---|---|
| dailyLimitKrw | – | yes | – |
No output schema declared.
No examples provided.
transfer ~46
Transfer funds between wallets (KRW). Requires local install.
| Name | Type | Req | Description |
|---|---|---|---|
| amountKrw | number | yes | – |
| fromWalletId | string | yes | – |
| toWalletId | string | yes | – |
No output schema declared.
No examples provided.
How do I install the CrossFin MCP server?
CrossFin is a hosted endpoint at https://crossfin.dev/api/mcp, so there is nothing to install locally. Ready-made configuration for Claude, Cursor, VS Code, Codex and 5 more is on this page, copied from each client's own documentation.
remote · crossfin.dev
claude mcp add --transport http bubilife1202-crossfin 'https://crossfin.dev/api/mcp'
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 hosted endpoint (https://crossfin.dev/api/mcp).
Is the CrossFin MCP server safe to use?
CrossFin scores 69 out of 100 on VerifyMCP. 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: get_kimchi_premium, list_exchange_fees, compare_exchange_prices, search_services, list_services, and 11 more. Their descriptions and schemas cost roughly 637 tokens of context every time the server is loaded.
Does the CrossFin MCP server require authentication?
No. We connected to CrossFin without credentials and it answered, so anything it exposes is reachable by anyone who knows the address.
Is the CrossFin MCP server still maintained?
CrossFin is still listed as active in the MCP registry. We last reached this channel on 5 November 2026. Those dates come from our own scans of the registry and the channel itself, not from anything the publisher announced.
What did VerifyMCP test on the CrossFin MCP server?
VerifyMCP ran 12 checks on CrossFin, covering TLS certificate, HTTPS, HSTS header, DNSSEC and 8 more. One item could not be completed, a gap on our side rather than a finding about CrossFin: Authorization. Supply Chain Security and Provenance & Transparency do not apply to a hosted endpoint, so they were not tested. The score does not measure everything, and the scoring documentation lists what it leaves out.