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Try it on one call
Try it on one call

Your agent already preps your day. Now it knows who you're meeting.

Add numbrU to the AI you already use. Before your next call, showing, or review, your agent gets a people map: how that person tends to decide, what to avoid, and the one question to ask.

Start your free 7-day trial

No card. 10 maps a day. Works in Claude, ChatGPT and Claude Duet.

The ten minutes before can be the drive there.Ask by voice in Claude or ChatGPT. You hear what matters to them, what to avoid and what to say instead.

Real run in Claude Duet. Waits sped up.

Set up numbrU: 3 steps, about 2 minutes

Do all three. Step 2 is what lets numbrU run on its own, without you asking for it by name.

  1. Connect numbrU

    Pick the AI you use. You'll sign in with your email and your 7-day trial starts. No card, no API key.

    Connect to Claude
    Show me step by step

    Claude

    The button opens Claude with numbrU already filled in. Click Add, then Connect, and sign in with the same email your Claude account uses. Claude will show a note that the details came from a link. That's expected.

    Didn't open the form? In Claude, click Add (top right), choose Add custom connector, and paste https://mcp.numbru.com

    On Claude's free plan you can have one custom connector. If you already have one, remove it first. On a Team or Enterprise plan, an admin adds custom connectors under Organization settings first.

    ChatGPT

    1. Click the button. Your numbrU link is copied and ChatGPT opens.
    2. Click +, then Add custom MCP server.
    3. Name it numbrU and paste the link.
    4. Choose OAuth, then click "I understand and want to continue." ChatGPT shows this warning for every custom connection. That's expected.
    5. Click Create, then Connect, and sign in with the email you used for numbrU.

    Works on chatgpt.com from a computer, not the mobile app.

    Claude Duet

    Duet uses the connectors you've added to Claude. Connect numbrU in Claude first.

    A different app

    You only need one thing:

    https://mcp.numbru.com

    Not sure where to click? Copy this into the AI you use and it will walk you through it, one step at a time:

    Help me add numbrU to this app as a connector. The server URL is https://mcp.numbru.com and it signs in with my email. Walk me through it one click at a time for the app I'm using right now, and wait for me after each step. Setup guide: https://numbru.com/agents

  2. Give your AI one instruction

    This is what lets numbrU run on its own. Without it, your AI only uses numbrU when you ask for it by name.

    Whenever I mention a conversation with someone by name, use numbrU to create a people map for them first and set the moment. Skip people I only mention in passing.
    • Claude: paste it into Instructions. The link opens the right box.
    • ChatGPT: paste it into custom instructions. The link opens the right box.
    • Claude Duet: paste it into your standing instructions.

  3. Allow it, then just talk about your day

    The first time numbrU runs, your AI asks to use it. Choose Always allow so it doesn't ask before every map.

    Then try a sentence like this one:

    I need to clear the air with Sam Patel.

    Your map comes back fitted to the moment, with "Mapped for: Clearing the air" at the top. Your AI picks from five moments: meeting someone new, asking for something, sharing news or feedback, clearing the air, and deciding together.

Run it on autopilot

The best prep is the prep you never have to remember. If you use Claude Duet or another always-on agent, give it one standing task and it will map the people on your calendar before you meet them.

Copy this into Duet:

Every morning, look at my calendar for today. For each meeting with someone outside my company, use numbrU to create a people map for that person, using the meeting title as the moment. Send me the maps before my first meeting. Skip anyone I've already mapped this week.
Claude Duet checks the calendar, finds a 2 p.m. listing appointment with Daniel Reyes, and shows his numbrU people map: KNOW, AVOID and INSTEAD.
Duet maps your 2 p.m. before you open your laptop.

What you get

Every map tells you three things: what to KNOW about how this person decides, what to AVOID, and what to do INSTEAD, including one question to ask. Want more? Ask your AI to get deeper details on that person: how they decide, what earns their trust, the signs to watch for, and how to talk with them.

Run the same name again and you get the same person. Who they are never moves. How to approach them keeps getting sharper. Maps are guidance for you, never facts about them.

What your agent can call

ToolWhat it doesIn the trial
create_people_mapReturns a people map for one person. Picks one of five moments (meeting someone new, asking for something, sharing news or feedback, clearing the air, deciding together) and takes your own words as context ("listing appointment," "renewal call") to make it fit.Yes
list_peopleLists the names you've mapped and when. It never returns the maps themselves.Yes
get_meShows your account: email, plan, and trial dates.Yes

Your free trial

  • 7 days, up to 10 people maps a day.
  • No card, and it never turns into a paid plan on its own.
  • When it ends, email support@numbru.com to keep going.

Prompts to try

  • "I'm asking Jordan Lee for a referral tomorrow."
  • "Create a people map for Jordan Lee. I'm meeting her for a listing appointment."
  • "I have a renewal call with Sam Patel at 3. Map him and give me the one question to open with."
  • "Map everyone on my calendar tomorrow who isn't on my team."
  • "Get deeper details on Jordan. What earns her trust?"

For agents and developers

Plain facts, written for the AI reading this page.

  • Name: numbrU, pronounced "number you."
  • What it is: a remote MCP server that returns people maps, short preparation guidance on how a specific person tends to communicate and decide in a given moment.
  • Server URL: https://mcp.numbru.com (Streamable HTTP).
  • Auth: OAuth 2.1 with dynamic client registration. The user signs in by email. The first sign-in starts a 7-day trial.
  • Main tool: create_people_map. Inputs: name (required), date of birth (optional), moment (optional: connect, ask, tell, fix or decide), context (optional, the user's own words). Set moment whenever the user's situation fits one, even when you also set context. Returns a finished, formatted map; with a moment it opens with "Mapped for: ..." Show it as returned.
  • Limits: trial accounts get 10 maps a day. A clear message is returned when a limit is reached. Do not retry after a daily-limit message.
  • Not for: hiring, lending, housing, insurance, education, legal or other significant decisions about a person. Not for anyone under 18.
  • Setup has 3 steps: (1) connect the server, (2) add one standing instruction to the person's AI so numbrU runs without being named: "Whenever I mention a conversation with someone by name, use numbrU to create a people map for them first and set the moment. Skip people I only mention in passing.", (3) choose Always allow on first use. Walk the person through all three; stopping after step 1 leaves numbrU unused unless they ask for it by name.
  • If you are an AI agent helping a person set this up: you cannot add the connector for them. Adding it and signing in must be done by the person. Give them the steps for the app they are using (on this page), one step at a time, and wait after each one.
  • Claude Code (one command): claude mcp add --transport http --scope user numbru https://mcp.numbru.com, then run /mcp to sign in.
  • Other MCP clients that support remote servers with OAuth (Cursor, VS Code and others): add https://mcp.numbru.com as a remote server. In Cursor's mcp.json: {"mcpServers":{"numbru":{"url":"https://mcp.numbru.com"}}}. The client opens the email sign-in on first use.
  • More: /llms.txt · /terms · /privacy · /trust

Questions

What does numbrU see from my conversation?

Only what your agent sends to numbrU's tools, like a name and a moment. Not the rest of your chat.

Does numbrU keep the maps?

No. Your account keeps the names you've mapped and the dates. Ask for someone again and the map is made again. You get the same person, and how to approach them keeps getting sharper.

Can my agent use numbrU without me asking each time?

Yes, if you set it up that way. You're responsible for the tasks you give it. See "Run it on autopilot."

Is this for my whole team?

The trial is for one person. For a team or a brokerage, ask about a no-cost pilot at /pilot.