Marketgenius

Our free Marketgenius investment tools as live, interactive React MCP Apps.

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What it can do

    What data it sees

    Do you need an account

    No: the server works without sign-in

    Our free Marketgenius investment tools as live, interactive React MCP Apps.

    How to connect

    How to connect Marketgenius to Claude

    The server address to paste into Claude settings:

    https://marketgenius.app/mcp

    1. Open Claude (claude.ai or the desktop app).
    2. Go to Settings → Connectors.
    3. Click Add custom connector.
    4. Paste the server address copied below into Remote MCP server URL and click Add.
    5. In a chat, click + → Connectors and switch the new connector on.

    Custom connectors are available on Free, Pro, Max, Team and Enterprise plans (Free is limited to one). On Team and Enterprise an organization Owner adds the connector first under Organization settings → Connectors.

    Authorization

    After you click Add, a sign-in window for the service opens. Sign in with your own account and approve access. Claude never sees your password.

    How to connect Marketgenius to ChatGPT

    The server address to paste into ChatGPT settings:

    https://marketgenius.app/mcp

    1. Open ChatGPT in a browser (chatgpt.com). A Plus, Pro, Business, Enterprise or Edu plan is required.
    2. Turn on developer mode once: Settings → Apps → Advanced settings → Developer mode.
    3. Open Settings → Connectors and click Create.
    4. Fill in the form: Name (anything), Description (one line about what the service does), MCP server URL (copy it below).
    5. Under Authentication choose OAuth if the service requires sign-in, otherwise None. Click Create.
    6. In a new chat open + → Apps/Connectors and enable the connector.

    OpenAI has renamed this section before (Connectors → Apps/Plugins). If the label differs, search settings for "developer mode". On Business/Enterprise workspaces an admin must allow custom connectors first.

    Authorization

    On first use ChatGPT opens the service's sign-in window. Sign in and approve access.

    How to connect Marketgenius to Cursor

    The server address to paste into Cursor settings:

    https://marketgenius.app/mcp

    Fastest: click Open in Cursor below and confirm the prompt.

    Manually:

    1. In Cursor open Settings → Cursor Settings → MCP and click Add new global MCP server.
    2. Paste the JSON copied below into ~/.cursor/mcp.json (per project: .cursor/mcp.json in the repo root).
    3. Save the file. The server appears in the MCP list; authorize it there if asked.

    Authorization

    If the service needs sign-in, an authorize button appears next to the server in the MCP list.

    Server tool list (17)

    Raw names from tools/list. Only developers need these.

    mg_listList all available Marketgenius tools with their names, descriptions, categories, and resource URIs. Use mg_list to discover what's available, or filter by category.
    mg_calculator_cagrOpen the CAGR Calculator React MCP App UI. ALWAYS ask first — never call this tool silently: "Open the calculator directly, or pre-fill it with your inputs?" IF directly → call this tool now with no params. STOP. Do not ask anything else. IF pre-fill → collect only the input schema fields — do not guess or invent field names.
    mg_calculator_cagr_updateUpdate one or more fields in the already-open CAGR Calculator. ALWAYS call mg_calculator_cagr_state first — the user may have changed values manually in the GUI and you must not overwrite them. Pass the version you received from that call (or from the open tool if updating immediately after opening). Only pass the fields the user explicitly asked to change; omit all others. Send all changes in a single call — multiple sequential calls lose intermediate updates (only the last one applies).
    mg_calculator_cagr_syncSync user-entered field values of the open CAGR Calculator back to the session store so the model can read them via the state tool. Called by the View after any field change; hidden from the model.
    mg_calculator_cagr_stateRead the current field values of the open CAGR Calculator. Call this before answering any question about the current values — the user may have changed fields manually in the GUI. Do not call this on a loop; call it once on demand.
    mg_calculator_dividendOpen the Dividend Calculator React MCP App UI. ALWAYS ask first — never call this tool silently: "Open the calculator directly, or pre-fill it with your inputs?" IF directly → call this tool now with no params. STOP. Do not ask anything else. IF pre-fill → ask "By amount invested or by number of shares?", then collect only the input schema fields matching that mode — do not guess or invent field names.
    mg_calculator_dividend_updateUpdate one or more fields in the already-open Dividend Calculator. ALWAYS call mg_calculator_dividend_state first — the user may have changed values manually in the GUI and you must not overwrite them. Pass the version you received from that call (or from the open tool if updating immediately after opening). Only pass the fields the user explicitly asked to change; omit all others. Send all changes in a single call — multiple sequential calls lose intermediate updates (only the last one applies).
    mg_calculator_dividend_syncSync user-entered field values of the open Dividend Calculator back to the session store so the model can read them via the state tool. Called by the View after any field change; hidden from the model.
    mg_calculator_dividend_stateRead the current field values of the open Dividend Calculator. Call this before answering any question about the current values — the user may have changed fields manually in the GUI. Do not call this on a loop; call it once on demand.
    mg_calculator_market_capOpen the Market Cap Calculator React MCP App UI. ALWAYS ask first — never call this tool silently: "Open the calculator directly, or pre-fill it with your inputs?" IF directly → call this tool now with no params. STOP. Do not ask anything else. IF pre-fill → ask "Would you like to pre-fill share price and shares outstanding?", then collect only the input schema fields matching that mode — do not guess or invent field names.
    mg_calculator_market_cap_updateUpdate one or more fields in the already-open Market Cap Calculator. ALWAYS call mg_calculator_market_cap_state first — the user may have changed values manually in the GUI and you must not overwrite them. Pass the version you received from that call (or from the open tool if updating immediately after opening). Only pass the fields the user explicitly asked to change; omit all others. Send all changes in a single call — multiple sequential calls lose intermediate updates (only the last one applies).
    mg_calculator_market_cap_syncSync user-entered field values of the open Market Cap Calculator back to the session store so the model can read them via the state tool. Called by the View after any field change; hidden from the model.
    mg_calculator_market_cap_stateRead the current field values of the open Market Cap Calculator. Call this before answering any question about the current values — the user may have changed fields manually in the GUI. Do not call this on a loop; call it once on demand.
    mg_calculator_profit_marginOpen the Profit Margin Calculator React MCP App UI. ALWAYS ask first — never call this tool silently: "Open the calculator directly, or pre-fill it with your inputs?" IF directly → call this tool now with no params. STOP. Do not ask anything else. IF pre-fill → ask "Would you like to pre-fill revenue and cost?", then collect only the input schema fields matching that mode — do not guess or invent field names.
    mg_calculator_profit_margin_updateUpdate one or more fields in the already-open Profit Margin Calculator. ALWAYS call mg_calculator_profit_margin_state first — the user may have changed values manually in the GUI and you must not overwrite them. Pass the version you received from that call (or from the open tool if updating immediately after opening). Only pass the fields the user explicitly asked to change; omit all others. Send all changes in a single call — multiple sequential calls lose intermediate updates (only the last one applies).
    mg_calculator_profit_margin_syncSync user-entered field values of the open Profit Margin Calculator back to the session store so the model can read them via the state tool. Called by the View after any field change; hidden from the model.
    mg_calculator_profit_margin_stateRead the current field values of the open Profit Margin Calculator. Call this before answering any question about the current values — the user may have changed fields manually in the GUI. Do not call this on a loop; call it once on demand.