The usedby MCP server,
connected in one click.
Which companies publicly use which AI and software tools, each line with its public source. Connect the official usedby 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 usedby 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 usedby https://www.usedby.ai/mcpRun in your terminal, then restart Claude Code.
usedby · https://www.usedby.ai/mcp
What your AI can do with usedby
Real prompts you can type the moment it's connected — no setup, no docs to read.
“Use “search_tools”: Find AI and software tools tracked on usedby by name or category, with how many companies publicly use each.”
“Use “who_uses”: Companies that publicly use a tool, strongest proof first, each with its proof level (CONFIRMED, OBSERVED, or SIGNAL: a job post, the weakes.”
“Use “company_stack”: Tools a company publicly uses according to usedby, strongest proof first, each with its proof level (job-post signals last) and source page.”
“Use “recent_changes”: Companies newly listed as customers by tool vendors in the last N days, optionally for one tool. Departures are not published.”
How secure is the usedby MCP server?
Every server in the gate directory has to pass the same four checks before your AI can touch it. Here's how usedby holds up.
Official endpoint
Operated by usedby (usedby.ai) 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 usedby 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 usedby
Choose usedby in the gate directory. No sign-in needed.
Use it anywhere
usedby'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 usedby exposes
Fetched live from the official endpoint and re-checked daily by gate — not marketing copy.
search_tools — Find AI and software tools tracked on usedby by name or category, with how many companies publicly use each.
who_uses — Companies that publicly use a tool, strongest proof first, each with its proof level (CONFIRMED, OBSERVED, or SIGNAL: a job post, the weakes
company_stack — Tools a company publicly uses according to usedby, strongest proof first, each with its proof level (job-post signals last) and source page.
recent_changes — Companies newly listed as customers by tool vendors in the last N days, optionally for one tool. Departures are not published.
compare — Two tools side by side: public customers with their proof mix, top industries, companies confirmed or observed on both, and vendor facts wit
Who runs the usedby MCP server?
The usedby MCP server at a glance
https://www.usedby.ai/mcpQuestions, answered
Is there an official usedby MCP server?
Yes — usedby operates its own remote MCP server at www.usedby.ai. 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 usedby to Claude or ChatGPT?
Add gate's gateway URL to your AI client once, then pick usedby in the directory. No account or sign-in is needed. From then on, usedby's tools are available in every client you've connected to gate.
Do I need to host anything?
No. usedby runs the server, and gate is fully managed. You just connect one URL — there's nothing to install, deploy, or maintain.
Is the usedby 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 usedby in minutes. No credit card required.
Connect more than just usedby
Every server below works through the same gateway URL — connect once, add tools anytime.
Squarespace DomainsDesignView →Set up usedby in: Claude · Claude Code · ChatGPT · Cursor · VS Code