The openfang-rail MCP server,
connected in one click.
Deterministic IBAN/LEI/VAT/SWIFT/rental-fraud checks via MCP; x402 USDC per call, signed receipts. Connect the official openfang-rail MCP server to Claude, ChatGPT, or Cursor through gate — one gateway URL, no config files, security-checked.
Free to start · No credit card · No hosting needed
What your AI can do with openfang-rail
Real prompts you can type the moment it's connected — no setup, no docs to read.
“Use “iban_check”: Validate an IBAN by ISO 13616 structure and MOD-97-10 checksum (offline, no bank lookup).”
“Use “lei_check”: Validate a Legal Entity Identifier (ISO 17442 + ISO 7064 MOD-97-10 check digits).”
“Use “vat_mod97_check”: Structural VAT check (BE mod-97 family).”
“Use “company_number_format”: Validate UK Companies House number format (not existence).”
How secure is the openfang-rail MCP server?
Every server in the gate directory has to pass the same four checks before your AI can touch it. Here's how openfang-rail holds up.
Official endpoint
Operated by openfang-rail (akrivis.in) at its documented MCP endpoint — not a third-party mirror or community re-host.
No sign-in needed
This server only exposes public data — no account and no credentials are involved when you connect.
Scanned before it goes live
gate checks every tool for prompt injection, hidden instructions, data-exfiltration hints, and over-broad permissions before the server is available through your gateway.
Watched for drift
If openfang-rail adds or changes tools later, gate re-scans and alerts you — before your AI acts on the change.
Connected in three steps
Connect your gate
Add one gateway URL to Claude, ChatGPT, or any MCP client. One-time setup, about two minutes.
Pick openfang-rail
Choose openfang-rail in the gate directory. No sign-in needed.
Use it anywhere
openfang-rail's tools are live in every AI client you've connected — with rules and logging built in.
Free to start · No credit card · No hosting needed
The actual tools openfang-rail exposes
Fetched live from the official endpoint and re-checked daily by gate — not marketing copy.
iban_check — Validate an IBAN by ISO 13616 structure and MOD-97-10 checksum (offline, no bank lookup).
lei_check — Validate a Legal Entity Identifier (ISO 17442 + ISO 7064 MOD-97-10 check digits).
vat_mod97_check — Structural VAT check (BE mod-97 family).
company_number_format — Validate UK Companies House number format (not existence).
rent_deposit_guard — Rental deposit safety: IBAN checksum + property/deposit country alignment + pre-viewing flag.
rental_listing_risk — Explainable rental-fraud risk score over listing red-flag signals (deterministic rule engine).
rental_verdict — One combined, signed rental due-diligence verdict: deposit + landlord entity (LEI/company) + listing risk.
batch_validate — Run up to 50 identifier checks (IBAN / LEI / VAT / UK company / SWIFT / ABA / EIN / IFSC / ABN / Luhn / ISBN / E.164 / SEDOL) in ONE paid ca
+ 15 more tools once connected
The openfang-rail MCP server at a glance
https://rail.akrivis.in/mcpQuestions, answered
Is there an official openfang-rail MCP server?
Yes — openfang-rail operates its own remote MCP server at rail.akrivis.in. gate connects you to that official endpoint and adds security scanning, per-tool access rules, and an activity log on top.
How do I connect openfang-rail to Claude or ChatGPT?
Add gate's gateway URL to your AI client once, then pick openfang-rail in the directory. No account or sign-in is needed. From then on, openfang-rail's tools are available in every client you've connected to gate.
Do I need to host anything?
No. openfang-rail runs the server, and gate is fully managed. You just connect one URL — there's nothing to install, deploy, or maintain.
Is the openfang-rail MCP server safe to connect?
It's the vendor's official endpoint, and gate scans its tools for prompt injection and hidden instructions before it goes live, re-checks it whenever it changes, and lets you allow, block, or require approval for every single tool.
Is it free?
Yes — you can get started with gate for free and connect openfang-rail in minutes. No credit card required.
Connect more than just openfang-rail
Every server below works through the same gateway URL — connect once, add tools anytime.
Squarespace DomainsDesignView →Set up openfang-rail in: Claude · Claude Code · ChatGPT · Cursor · VS Code