The Signed Investors MCP server,
connected in one click.
Search Signed's public angel investor directory by sector, check size, or keyword. No login needed. Connect the official Signed Investors 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 Signed Investors 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 signed-investors https://mcp.signed.com/investorsRun in your terminal, then restart Claude Code.
Signed Investors · https://mcp.signed.com/investors
What your AI can do with Signed Investors
Real prompts you can type the moment it's connected — no setup, no docs to read.
“Use “search_investors”: Search Signed's public angel investor directory by keyword: a name, a login, or a word from an investor's bio or investment description ("cl.”
“Use “list_investors”: Browse Signed's public angel investor directory: every investor with a public profile, most complete profiles first, optionally narrowed to.”
“Use “get_investor”: One angel investor's public Signed profile by login: bio, investment description, sectors, check size, links, the portfolio companies they'v.”
“Use “list_investor_followers”: Public Signed investors who follow the given investor, alphabetically by name. Only public profiles appear on either side, the same as signe.”
How secure is the Signed Investors MCP server?
Every server in the gate directory has to pass the same four checks before your AI can touch it. Here's how Signed Investors holds up.
Official endpoint
Operated by Signed Investors (signed.com) 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 Signed Investors 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 Signed Investors
Choose Signed Investors in the gate directory. No sign-in needed.
Use it anywhere
Signed Investors'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 Signed Investors exposes
Fetched live from the official endpoint and re-checked daily by gate — not marketing copy.
search_investors — Search Signed's public angel investor directory by keyword: a name, a login, or a word from an investor's bio or investment description ("cl
list_investors — Browse Signed's public angel investor directory: every investor with a public profile, most complete profiles first, optionally narrowed to
get_investor — One angel investor's public Signed profile by login: bio, investment description, sectors, check size, links, the portfolio companies they'v
list_investor_followers — Public Signed investors who follow the given investor, alphabetically by name. Only public profiles appear on either side, the same as signe
list_investor_following — Public Signed investors the given investor follows, alphabetically by name. Only public profiles appear on either side, the same as signed.c
list_sectors — The sectors an investor can list on their Signed profile — the valid values for the sector filter on list_investors and search_investors — w
list_check_sizes — The check-size ranges an investor can list on their Signed profile — the valid values for the check_size filter on list_investors and search
Who runs the Signed Investors MCP server?
The Signed Investors MCP server at a glance
https://mcp.signed.com/investorsQuestions, answered
Is there an official Signed Investors MCP server?
Yes — Signed Investors operates its own remote MCP server at mcp.signed.com. 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 Signed Investors to Claude or ChatGPT?
Add gate's gateway URL to your AI client once, then pick Signed Investors in the directory. No account or sign-in is needed. From then on, Signed Investors's tools are available in every client you've connected to gate.
Do I need to host anything?
No. Signed Investors runs the server, and gate is fully managed. You just connect one URL — there's nothing to install, deploy, or maintain.
Is the Signed Investors 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 Signed Investors in minutes. No credit card required.
Connect more than just Signed Investors
Every server below works through the same gateway URL — connect once, add tools anytime.
Squarespace DomainsDesignView →Set up Signed Investors in: Claude · Claude Code · ChatGPT · Cursor · VS Code
Give your AI Signed Investors — safely.
One URL. All MCPs. Full control. Free to start.
Get started free