MGS Toolbox

Fantasy TTRPG data: metals, minerals, ingredients, potions, gems, craft rules, music catalogue.

CommunityDegradedNo sign-inGlobalFreeRead-only

What it can do

    What data it sees

    Do you need an account

    No: the server works without sign-in

    Fantasy TTRPG data: metals, minerals, ingredients, potions, gems, craft rules, music catalogue.

    How to connect

    How to connect MGS Toolbox to Claude

    The server address to paste into Claude settings:

    https://michaelghelfistudios.com/api/v1/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 MGS Toolbox to ChatGPT

    The server address to paste into ChatGPT settings:

    https://michaelghelfistudios.com/api/v1/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 MGS Toolbox to Cursor

    The server address to paste into Cursor settings:

    https://michaelghelfistudios.com/api/v1/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 (12)

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

    search_encyclopediaFind metals, minerals, alchemical ingredients, potions and gems by name (case- and accent-insensitive; exact names first, then prefixes, then substrings, aliases included). Returns each hit with its kind, id, one-line summary and page url; call get_entry for the full data.
    get_entryThe full data of one metal, mineral, ingredient, potion or gem by its id (from search_encyclopedia or list_entries): properties, lore, page url, embed_url.
    list_entriesA page of one catalogue, filtered. Use it to answer "which minerals are cubic and gem-quality?", "legendary metals of the medieval era", "swamp ingredients with a fire essence". Combine with q for a name search inside the filter.
    random_entryOne entry at random among those matching the filters: loot tables, "mineral of the day", a credible metal for a blacksmith, a foraging roll.
    list_facetsEvery distinct value of each filterable field of a catalogue (categories, rarities, crystal systems, environments, essences…) and its entry count.
    craft_rulesThe rules of the crafting system (characters, essences, extraction, brewing, gem cutting, socketing) as titled HTML sections.
    search_tracksPublished tracks of MGS Audio (music, ambiences, sound effects) with composer, album, moods, keywords, duration and page url. Metadata only: no audio file. "A battle theme" → genre: "Combat", type: "music"; "a forest ambience" → type: "ambience", genre: "Forest"; "something for a dungeon" → keyword: "dungeon".
    random_trackOne published track at random among those matching the filters.
    get_trackOne track by id or slug, with its published alternative versions.
    list_composersEvery composer with published tracks, most prolific first, with their page url.
    list_albumsPublished albums with track count, page url and an embeddable player url.
    audio_taxonomyThe vocabulary of the track filters: every genre, mood, era and keyword in use.