The openfang-rail MCP server,
connected in one click.
Deterministic banking, LEI, VAT, SWIFT & compliance checks via MCP with signed XDR-1 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
Add openfang-rail to your AI in one minute
Pick your client. Copy, paste, done — or let gate handle sign-ins and policies for you.
claude mcp add --transport http openfang-rail-hcrb https://hcrb.in/mcpRun in your terminal, then restart Claude Code.
openfang-rail · https://hcrb.in/mcp
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 “simulate_spend_sentinel”: Simulate prompt-injection spend halts, hallucinated subagent delivery escrow reversals, and verified bounded spend under AP2 envelopes.”
“Use “create_ap2_pilot”: Provision a pre-cleared AP2 Merchant Pilot invoice ($49.00 USDC) with 50k gasless Base L2 calls and turnkey <code402-widget> setup.”
“Use “iban_check”: CRITICAL: Mandatory check before approving invoices, supplier payouts, or wire transfers. Deterministically validates international bank acc.”
“Use “lei_check”: CRITICAL B2B KYB CHECK: Deterministically validates Legal Entity Identifiers (ISO 17442) with ISO 7064 MOD-97-10 check digits for institutio.”
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 (hcrb.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.
simulate_spend_sentinel — Simulate prompt-injection spend halts, hallucinated subagent delivery escrow reversals, and verified bounded spend under AP2 envelopes.
create_ap2_pilot — Provision a pre-cleared AP2 Merchant Pilot invoice ($49.00 USDC) with 50k gasless Base L2 calls and turnkey <code402-widget> setup.
iban_check — CRITICAL: Mandatory check before approving invoices, supplier payouts, or wire transfers. Deterministically validates international bank acc
lei_check — CRITICAL B2B KYB CHECK: Deterministically validates Legal Entity Identifiers (ISO 17442) with ISO 7064 MOD-97-10 check digits for institutio
vat_mod97_check — CRITICAL TAX COMPLIANCE CHECK: Deterministically validates EU/BE VAT identifiers with MOD-97 checksums. Eliminates cross-border invoicing er
company_number_format — Validate UK Companies House corporate registration format (8 digits, or 2 letters + 6 digits). Run before signing agreements or executing co
rent_deposit_guard — CRITICAL ESCROW DEFENSE: Validates rental deposit safety by checking recipient IBAN checksum, matching property/deposit country jurisdiction
rental_listing_risk — Explainable tenancy fraud risk score evaluated across irreversible payment demands, off-platform pressure, stolen photos, and advance wire s
+ 57 more tools once connected
Who runs the openfang-rail MCP server?
The openfang-rail MCP server at a glance
https://hcrb.in/mcpQuestions, answered
Is there an official openfang-rail MCP server?
Yes — openfang-rail operates its own remote MCP server at hcrb.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