The Buyer Signals MCP server,
connected in one click.
Companies with a recent, dated, public sign they may buy, from SEC filings and job boards. Connect the official Buyer Signals 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 Buyer Signals 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 buyer-signals https://signals.openkrill.app/mcpRun in your terminal, then restart Claude Code.
Buyer Signals · https://signals.openkrill.app/mcp
What your AI can do with Buyer Signals
Real prompts you can type the moment it's connected — no setup, no docs to read.
“Use “find_buyer_signals”: Use this when the user wants companies that recently raised money or have long-open roles, such as "which software companies in Texas filed.”
“Use “list_signal_sources”: Use this when the user asks where the signals come from, which sources are allowed, or why a source such as Y Combinator or LinkedIn is not.”
“Use “stack_pains”: Use this when the user wants an aggregate of which tools people use for a category, what they complain about, what else they consider, and w.”
“Use “submit_feedback”: Send feedback to the maintainers about a missing tool, broken links, a bug, or stale data. Use this to send feedback, a bug report or a feat.”
How secure is the Buyer Signals MCP server?
Every server in the gate directory has to pass the same four checks before your AI can touch it. Here's how Buyer Signals holds up.
Official endpoint
Operated by Buyer Signals (openkrill.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 Buyer Signals 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 Buyer Signals
Choose Buyer Signals in the gate directory. No sign-in needed.
Use it anywhere
Buyer Signals'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 Buyer Signals exposes
Fetched live from the official endpoint and re-checked daily by gate — not marketing copy.
find_buyer_signals — Use this when the user wants companies that recently raised money or have long-open roles, such as "which software companies in Texas filed
list_signal_sources — Use this when the user asks where the signals come from, which sources are allowed, or why a source such as Y Combinator or LinkedIn is not
stack_pains — Use this when the user wants an aggregate of which tools people use for a category, what they complain about, what else they consider, and w
submit_feedback — Send feedback to the maintainers about a missing tool, broken links, a bug, or stale data. Use this to send feedback, a bug report or a feat
get_feedback_reply — Read the feedback reply for a ticket from submit_feedback. Use this to read the maintainers' reply to feedback you sent with submit_feedback
index_tools — LinkedIn recruiter jobs feedback broken links: search openkrill MCP tools by task. Use this to find a tool for recruiter search, LinkedIn ke
Who runs the Buyer Signals MCP server?
The Buyer Signals MCP server at a glance
https://signals.openkrill.app/mcpQuestions, answered
Is there an official Buyer Signals MCP server?
Yes — Buyer Signals operates its own remote MCP server at signals.openkrill.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 Buyer Signals to Claude or ChatGPT?
Add gate's gateway URL to your AI client once, then pick Buyer Signals in the directory. No account or sign-in is needed. From then on, Buyer Signals's tools are available in every client you've connected to gate.
Do I need to host anything?
No. Buyer Signals runs the server, and gate is fully managed. You just connect one URL — there's nothing to install, deploy, or maintain.
Is the Buyer Signals 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 Buyer Signals in minutes. No credit card required.
Connect more than just Buyer Signals
Every server below works through the same gateway URL — connect once, add tools anytime.
Squarespace DomainsDesignView →Set up Buyer Signals in: Claude · Claude Code · ChatGPT · Cursor · VS Code