Mlola UI

Mlola UI components, tokens and design rules for coding agents, with a markup checker

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What it can do

    What data it sees

    Do you need an account

    No: the server works without sign-in

    Mlola UI components, tokens and design rules for coding agents, with a markup checker

    How to connect

    How to connect Mlola UI to Claude

    The server address to paste into Claude settings:

    https://ui.mlola.com/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 Mlola UI to ChatGPT

    The server address to paste into ChatGPT settings:

    https://ui.mlola.com/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 Mlola UI to Cursor

    The server address to paste into Cursor settings:

    https://ui.mlola.com/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 (9)

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

    get_design_rulesThe rules for building UI with Mlola: compose first, color by role, measure with the scales, shared state words, touch and focus. Read once before writing UI.
    search_componentsFind components, blocks, pages and templates by what they do (for example 'date range', 'chat input', 'pricing'). Returns name, tier (free or Mlola Pro) and a one-line description.
    get_componentEverything needed to use one item: import, every prop with fixed values (variant, tone, size, side…) and its default, the classes it styles and the data-* values each reacts to, dependencies and the install command. Set include_source to read a free component's source.
    get_tokensThe --ml-* tokens grouped by purpose (planes and ink, color roles, spacing, type, density, shape, depth, motion, layers…). Filter with a group name or part of a token name.
    check_markupChecks HTML or JSX: classes that do not exist, variant classes, data-* values a class does not react to, utility classes, misuse of data-theme or data-mode, and in style attributes, <style> blocks and utility classes (bg-[#fafafa]) hand-written colors, spacing written by hand instead of the --ml-space-* scale, overridden theme tokens and text faded with opacity. Each issue names its line. Run it on markup you wrote before finishing: pass the whole page or file, <style> blocks included, not an excerpt, since it only checks what it is given.
    get_render_catalogThe components an agent may compose at runtime with Mlola Render, as A2UI v0.9 messages: each component's props and allowed values, how surfaces, data binding and actions work, and complete examples. Read once before composing a surface. format "schema" returns the A2UI catalog (JSON Schema) instead.
    check_renderChecks A2UI messages (createSurface, updateComponents, updateDataModel, deleteSurface) against the Mlola Render catalog before they render: components and props that do not exist, values a component does not offer, colors or styles set by hand, fields and controls without a name, a missing root, children that do not exist or form a loop, headings that skip a level, values outside a range. Each error names its JSON Pointer path and the fix. Pass every message of the surface: one object, an array, or JSON Lines.
    render_uiShows an interface in the conversation: a form, a status card, a table of results. Pass A2UI messages composed from the Mlola Render catalog (read get_render_catalog first); they are checked, and drawn with Mlola components where the host shows MCP Apps. When the person presses a button, their next message carries the A2UI action with what they entered. Where the host shows no apps, this answers with the check's report.
    get_install_commandHow to set Mlola up: the commands to run in a project to add components, blocks, pages or templates (with the license step for Mlola Pro items), and the stylesheet link and script for a page with no build step. Leave names out for the setup alone.