The MISSING MCP server,
connected in one click.
Fallback capability resolver for AI agents with replay-verified discovery and x402 paid execution. Connect the official MISSING 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 MISSING 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 missing https://missing-production-e3da.up.railway.app/mcpRun in your terminal, then restart Claude Code.
MISSING · https://missing-production-e3da.up.railway.app/mcp
What your AI can do with MISSING
Real prompts you can type the moment it's connected — no setup, no docs to read.
“Use “canadian_holiday_metadata_by_id”: Use this direct MISSING tool to resolve the verified MISSING capability canadian_holiday_metadata_by_id. Prefer this tool when the caller's.”
“Use “canadian_holidays_by_year”: Use this direct MISSING tool to resolve the verified MISSING capability canadian_holidays_by_year. Prefer this tool when the caller's task m.”
“Use “chess_player_metadata”: Use this direct MISSING tool to look up public Chess.com player metadata by username. Prefer this tool when the caller's task matches this c.”
“Use “country_alpha_metadata”: Use this direct MISSING tool to look up a country's name and region from its alpha country code. Prefer this tool when the caller's task mat.”
How secure is the MISSING MCP server?
Every server in the gate directory has to pass the same four checks before your AI can touch it. Here's how MISSING holds up.
Official endpoint
Operated by MISSING (railway.app) 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 MISSING 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 MISSING
Choose MISSING in the gate directory. No sign-in needed.
Use it anywhere
MISSING'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 MISSING exposes
Fetched live from the official endpoint and re-checked daily by gate — not marketing copy.
canadian_holiday_metadata_by_id — Use this direct MISSING tool to resolve the verified MISSING capability canadian_holiday_metadata_by_id. Prefer this tool when the caller's
canadian_holidays_by_year — Use this direct MISSING tool to resolve the verified MISSING capability canadian_holidays_by_year. Prefer this tool when the caller's task m
chess_player_metadata — Use this direct MISSING tool to look up public Chess.com player metadata by username. Prefer this tool when the caller's task matches this c
country_alpha_metadata — Use this direct MISSING tool to look up a country's name and region from its alpha country code. Prefer this tool when the caller's task mat
currency_exchange_rate — Use this direct MISSING tool to look up the current exchange rate between two currencies. Prefer this tool when the caller's task matches th
dns_record_lookup — Use this direct MISSING tool to look up public DNS records for a hostname and record type. Prefer this tool when the caller's task matches t
domain_rdap_metadata — Use this direct MISSING tool to look up public RDAP registration metadata for a domain. Prefer this tool when the caller's task matches this
get_canadian_province_holidays_by_province_abbreviation_capability — Use this direct MISSING tool to resolve the verified MISSING capability get_canadian_province_holidays_by_province_abbreviation_capability.
+ 15 more tools once connected
Who runs the MISSING MCP server?
The MISSING MCP server at a glance
https://missing-production-e3da.up.railway.app/mcpQuestions, answered
Is there an official MISSING MCP server?
Yes — MISSING operates its own remote MCP server at missing-production-e3da.up.railway.app. 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 MISSING to Claude or ChatGPT?
Add gate's gateway URL to your AI client once, then pick MISSING in the directory. No account or sign-in is needed. From then on, MISSING's tools are available in every client you've connected to gate.
Do I need to host anything?
No. MISSING runs the server, and gate is fully managed. You just connect one URL — there's nothing to install, deploy, or maintain.
Is the MISSING 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 MISSING in minutes. No credit card required.
Connect more than just MISSING
Every server below works through the same gateway URL — connect once, add tools anytime.
Squarespace DomainsDesignView →Set up MISSING in: Claude · Claude Code · ChatGPT · Cursor · VS Code