Koskamo

MGS Toolbox MCP

Provides AI agents with read-only access to fantasy TTRPG reference data including metals, minerals, ingredients, potions, gems, crafting rules, and an audio catalogue. It enables lookups, random generation for loot or foraging, and track selection for sessions, citing source URLs for accuracy.

Visit Michael Ghelfi Studios

Endpoint and access

No sign-in to connect and list tools. Individual tools may still need a vendor account, credentials, or permissions; check the documented prerequisites.

MGS Toolbox MCP logo, by Michael Ghelfi StudiosVendor evidenceStreamable HTTPNo sign-inEndpoint checked 2026-11-07Operated by Michael Ghelfi Studios
MCP endpoint (Streamable HTTP)
https://michaelghelfistudios.com/api/v1/mcp
Vendor documentation

What its tools do

12 tools, grouped by the hints the server advertises. Hints are self-declared, not verified behavior.

Not annotated (12)

12 of 12 have a description · 0 of 12 declare behavior hints · 5 of 10 with parameters document them all

Checks and signals

Each line is separate evidence, not a trust score.

  • Passed Endpoint answered the live check ·
  • Passed Official MCP Registry namespace is tied to michaelghelfistudios.com ·
  • Passed Endpoint is on the registry namespace domain ·
  • Availability 1 of 1 checks passed in 30 days

What you can do with it

  • Chat bot lookups for minerals or metals
  • Loot and prompt generators for TTRPGs
  • VTT and note-taking integrations
  • Session soundtrack pickers

Source and maintenance

Vendor evidenceRegistry 1.0.0
mcp-registry: com.michaelghelfistudios/toolbox@1.0.0Project website

Protocol and capabilities

Server
mgs-toolbox 1.0.0
MCP protocol negotiated in check
2025-11-25
Tools
12 advertised
Resources
1 advertised
Resource templates
0 advertised
Prompts
Not advertised
Server-advertised capabilities
{
  "tools": {
    "listChanged": true
  },
  "resources": {
    "listChanged": true
  }
}

Server-provided instructions

Untrusted server output shown for inspection. It is not Koskamo guidance and is excluded from knowledge search.

Reference data of the MGS Toolbox (Michael Ghelfi Studios) for tabletop role-playing games: the Metal Encyclopedia (metals), the Crystal Encyclopedia (minerals), Rerum Natura (alchemical ingredients and materials), the Crafting Table (potions, gems, crafting rules), Biomes (milieux, animals, plants, creatures), the reference pages of Hearth (medieval and fantasy cities), Passage (1920s travel) and Bearer (interwar papers), and the MGS Audio catalogue (music, ambiences, sound effects). Texts exist in English and French (lang parameter). Use these tools instead of answering from memory whenever a user asks about one of these catalogues. Every entry and track carries a "url": cite it when you show the entry, and tell the user where the data comes from (Michael Ghelfi Studios). The audio tools return metadata only: to listen, send the user to the track's url. Filter values are stable codes (list_facets and audio_taxonomy give the vocabularies).

Tools

12 advertised

search_encyclopedia — Search the encyclopedias
Advertised by the server during the last successful anonymous check.

Find metals, minerals, ingredients and materials, potions, gems, the milieux, animals, plants and creatures of Biomes and the reference pages of Hearth, Passage and Bearer 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.

search_encyclopedia input schema
{
  "type": "object",
  "$schema": "http://json-schema.org/draft-07/schema#",
  "required": [
    "q"
  ],
  "properties": {
    "q": {
      "type": "string",
      "minLength": 1,
      "description": "The name or part of it."
    },
    "kind": {
      "type": "string",
      "description": "Restrict to some catalogues, comma-separated (e.g. \"metal,mineral\")."
    },
    "lang": {
      "enum": [
        "en",
        "fr",
        "all"
      ],
      "type": "string",
      "description": "Language of the texts: en (default), fr, or all for both."
    },
    "limit": {
      "type": "integer",
      "maximum": 50,
      "minimum": 1
    }
  },
  "additionalProperties": false
}
get_entry — Get one entry
Advertised by the server during the last successful anonymous check.

The full data of one entry (a metal, mineral, ingredient, potion, gem, milieu, animal, plant, creature or reference page) by its id (from search_encyclopedia or list_entries): properties, lore, page url, embed_url.

get_entry input schema
{
  "type": "object",
  "$schema": "http://json-schema.org/draft-07/schema#",
  "required": [
    "kind",
    "id"
  ],
  "properties": {
    "id": {
      "type": "string",
      "description": "The entry id, e.g. \"iron\", \"rose_quartz\"."
    },
    "kind": {
      "enum": [
        "metal",
        "mineral",
        "ingredient",
        "potion",
        "gem",
        "milieu",
        "animal",
        "plant",
        "monster",
        "hearth_page",
        "passage_page",
        "bearer_page"
      ],
      "type": "string",
      "description": "Which catalogue: metal, mineral, ingredient, potion, gem, milieu, animal, plant, monster, hearth_page, passage_page, bearer_page."
    },
    "lang": {
      "enum": [
        "en",
        "fr",
        "all"
      ],
      "type": "string",
      "description": "Language of the texts: en (default), fr, or all for both."
    }
  },
  "additionalProperties": false
}
list_entries — List / filter a catalogue
Advertised by the server during the last successful anonymous check.

A 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.

list_entries input schema
{
  "type": "object",
  "$schema": "http://json-schema.org/draft-07/schema#",
  "required": [
    "kind"
  ],
  "properties": {
    "q": {
      "type": "string"
    },
    "kind": {
      "enum": [
        "metal",
        "mineral",
        "ingredient",
        "potion",
        "gem",
        "milieu",
        "animal",
        "plant",
        "monster",
        "hearth_page",
        "passage_page",
        "bearer_page"
      ],
      "type": "string",
      "description": "Which catalogue: metal, mineral, ingredient, potion, gem, milieu, animal, plant, monster, hearth_page, passage_page, bearer_page."
    },
    "lang": {
      "enum": [
        "en",
        "fr",
        "all"
      ],
      "type": "string",
      "description": "Language of the texts: en (default), fr, or all for both."
    },
    "limit": {
      "type": "integer",
      "maximum": 200,
      "minimum": 1
    },
    "offset": {
      "type": "integer",
      "minimum": 0
    },
    "filters": {
      "type": "object",
      "description": "Field filters as {name: \"value\" | \"value1,value2\"} (any-of, case-insensitive). Names per catalogue: metal → category, era, rarity, fictional, tag; mineral → type, system, rarity, gem_quality, color, magic, planar_origin, origin; ingredient → category, rarity, realm, biome, landform, structure, qualifier, essence, creature_type, part; potion → essence; gem → color, rarity, temporary; milieu → realm, group; animal → kind, size, danger, activity, domestic and the place filters; plant → kind and the place filters; monster → type, size, cr, danger and the place filters; hearth_page, passage_page, bearer_page → none (search by name with q). list_facets gives the values.",
      "additionalProperties": {
        "type": "string"
      }
    }
  },
  "additionalProperties": false
}
random_entry — A random entry
Advertised by the server during the last successful anonymous check.

One entry at random among those matching the filters: loot tables, "mineral of the day", a credible metal for a blacksmith, a foraging roll.

random_entry input schema
{
  "type": "object",
  "$schema": "http://json-schema.org/draft-07/schema#",
  "required": [
    "kind"
  ],
  "properties": {
    "kind": {
      "enum": [
        "metal",
        "mineral",
        "ingredient",
        "potion",
        "gem",
        "milieu",
        "animal",
        "plant",
        "monster",
        "hearth_page",
        "passage_page",
        "bearer_page"
      ],
      "type": "string",
      "description": "Which catalogue: metal, mineral, ingredient, potion, gem, milieu, animal, plant, monster, hearth_page, passage_page, bearer_page."
    },
    "lang": {
      "enum": [
        "en",
        "fr",
        "all"
      ],
      "type": "string",
      "description": "Language of the texts: en (default), fr, or all for both."
    },
    "filters": {
      "type": "object",
      "description": "Field filters as {name: \"value\" | \"value1,value2\"} (any-of, case-insensitive). Names per catalogue: metal → category, era, rarity, fictional, tag; mineral → type, system, rarity, gem_quality, color, magic, planar_origin, origin; ingredient → category, rarity, realm, biome, landform, structure, qualifier, essence, creature_type, part; potion → essence; gem → color, rarity, temporary; milieu → realm, group; animal → kind, size, danger, activity, domestic and the place filters; plant → kind and the place filters; monster → type, size, cr, danger and the place filters; hearth_page, passage_page, bearer_page → none (search by name with q). list_facets gives the values.",
      "additionalProperties": {
        "type": "string"
      }
    }
  },
  "additionalProperties": false
}
list_facets — Filter values of a catalogue
Advertised by the server during the last successful anonymous check.

Every distinct value of each filterable field of a catalogue (categories, rarities, crystal systems, biomes, essences…) and its entry count.

list_facets input schema
{
  "type": "object",
  "$schema": "http://json-schema.org/draft-07/schema#",
  "required": [
    "kind"
  ],
  "properties": {
    "kind": {
      "enum": [
        "metal",
        "mineral",
        "ingredient",
        "potion",
        "gem",
        "milieu",
        "animal",
        "plant",
        "monster",
        "hearth_page",
        "passage_page",
        "bearer_page"
      ],
      "type": "string",
      "description": "Which catalogue: metal, mineral, ingredient, potion, gem, milieu, animal, plant, monster, hearth_page, passage_page, bearer_page."
    }
  },
  "additionalProperties": false
}
craft_rules — Crafting Table rules
Advertised by the server during the last successful anonymous check.

The rules of the crafting system (characters, essences, extraction, brewing, gem cutting, socketing) as titled HTML sections.

craft_rules input schema
{
  "type": "object",
  "$schema": "http://json-schema.org/draft-07/schema#",
  "properties": {
    "lang": {
      "enum": [
        "en",
        "fr",
        "all"
      ],
      "type": "string",
      "description": "Language of the texts: en (default), fr, or all for both."
    }
  },
  "additionalProperties": false
}
search_tracks — Search the music catalogue
Advertised by the server during the last successful anonymous check.

Published 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".

search_tracks input schema
{
  "type": "object",
  "$schema": "http://json-schema.org/draft-07/schema#",
  "properties": {
    "q": {
      "type": "string",
      "description": "Text search in title, description, keywords."
    },
    "era": {
      "type": "string",
      "description": "Era token(s), comma-separated."
    },
    "mood": {
      "type": "string",
      "description": "Musical style(s), comma-separated: Orchestral, Celtic, Folk, Medieval, Metal…"
    },
    "sort": {
      "enum": [
        "newest",
        "oldest",
        "title",
        "duration",
        "random"
      ],
      "type": "string"
    },
    "type": {
      "type": "string",
      "description": "Audio type(s), comma-separated: music, ambience, sfx…"
    },
    "album": {
      "type": "string",
      "description": "Album id or slug."
    },
    "genre": {
      "type": "string",
      "description": "Theme(s), comma-separated, case-insensitive: Combat, Forest, Dungeon, Taverns and Inns, Magic, Weather… (audio_taxonomy lists them)."
    },
    "limit": {
      "type": "integer",
      "maximum": 50,
      "minimum": 1
    },
    "offset": {
      "type": "integer",
      "minimum": 0
    },
    "keyword": {
      "type": "string",
      "description": "Keyword(s), comma-separated, any of them."
    },
    "composer": {
      "type": "string",
      "description": "Composer id or slug."
    },
    "duration_max": {
      "type": "number",
      "description": "Maximum duration, seconds."
    },
    "duration_min": {
      "type": "number",
      "description": "Minimum duration, seconds."
    }
  },
  "additionalProperties": false
}
random_track — A random track
Advertised by the server during the last successful anonymous check.

One published track at random among those matching the filters.

random_track input schema
{
  "type": "object",
  "$schema": "http://json-schema.org/draft-07/schema#",
  "properties": {
    "q": {
      "type": "string",
      "description": "Text search in title, description, keywords."
    },
    "era": {
      "type": "string",
      "description": "Era token(s), comma-separated."
    },
    "mood": {
      "type": "string",
      "description": "Musical style(s), comma-separated: Orchestral, Celtic, Folk, Medieval, Metal…"
    },
    "type": {
      "type": "string",
      "description": "Audio type(s), comma-separated: music, ambience, sfx…"
    },
    "album": {
      "type": "string",
      "description": "Album id or slug."
    },
    "genre": {
      "type": "string",
      "description": "Theme(s), comma-separated, case-insensitive: Combat, Forest, Dungeon, Taverns and Inns, Magic, Weather… (audio_taxonomy lists them)."
    },
    "keyword": {
      "type": "string",
      "description": "Keyword(s), comma-separated, any of them."
    },
    "composer": {
      "type": "string",
      "description": "Composer id or slug."
    },
    "duration_max": {
      "type": "number",
      "description": "Maximum duration, seconds."
    },
    "duration_min": {
      "type": "number",
      "description": "Minimum duration, seconds."
    }
  },
  "additionalProperties": false
}
get_track — Get one track
Advertised by the server during the last successful anonymous check.

One track by id or slug, with its published alternative versions.

get_track input schema
{
  "type": "object",
  "$schema": "http://json-schema.org/draft-07/schema#",
  "required": [
    "id"
  ],
  "properties": {
    "id": {
      "type": "string"
    }
  },
  "additionalProperties": false
}
list_composers — List composers
Advertised by the server during the last successful anonymous check.

Every composer with published tracks, most prolific first, with their page url.

list_composers input schema
{
  "type": "object",
  "$schema": "http://json-schema.org/draft-07/schema#",
  "properties": {}
}
list_albums — List albums
Advertised by the server during the last successful anonymous check.

Published albums with track count, page url and an embeddable player url.

list_albums input schema
{
  "type": "object",
  "$schema": "http://json-schema.org/draft-07/schema#",
  "properties": {
    "limit": {
      "type": "integer",
      "maximum": 200,
      "minimum": 1
    },
    "offset": {
      "type": "integer",
      "minimum": 0
    }
  },
  "additionalProperties": false
}
audio_taxonomy — Genres, moods, eras, keywords
Advertised by the server during the last successful anonymous check.

The vocabulary of the track filters: every genre, mood, era and keyword in use.

audio_taxonomy input schema
{
  "type": "object",
  "$schema": "http://json-schema.org/draft-07/schema#",
  "properties": {}
}

Prompts

Not advertised

No prompt definitions available.

Resources

1 advertised

api-docs — MGS Toolbox API documentation

Advertised by the server during the last successful anonymous check.

How the underlying JSON API works, its terms, and the embeddable cards.

api-docs URI
https://michaelghelfistudios.com/api/v1/docs

MIME type: text/plain

90-day uptime

A lightweight connection check about every six hours, sampled on hosts with many listings. It shows the server answered, not that its tools work.

Too few checks for a percentage yet (1 of 1 answered).

  1. 2026-11-07: 1 of 1 checks answered

30-day availability

Aggregated from read-only remote checks; this is not a tool-execution or security guarantee.

Successful checks
1 of 1 (100%)
Average latency
536 ms
95th percentile latency
536 ms

Maintenance history

Public check and source-refresh events. Editorial and ownership records remain private.

  • · probe · passed · 536 ms · metadata changed · 12 tool(s), 1 resource(s), 0 resource template(s)

Connect from your client

Each snippet registers the same endpoint; pick the client you use.

This server is operated by the named third party. Listing and endpoint checks are not an endorsement or a security audit. Review the operator's permissions, terms, and data handling before connecting. How listings are checked and corrected.

Claude Code

Run this once in a terminal. It registers the remote server. Use --scope project to write .mcp.json for the repo.
Claude Code configuration
claude mcp add --transport http mgs-toolbox-mcp https://michaelghelfistudios.com/api/v1/mcp

Codex

Run this once. Codex stores MCP servers in ~/.codex/config.toml (or .codex/config.toml in a trusted project).
Codex configuration
codex mcp add mgs-toolbox-mcp --url https://michaelghelfistudios.com/api/v1/mcp

Cursor

Merge this server into .cursor/mcp.json in your project, then enable mgs-toolbox-mcp in your MCP settings.
Cursor configuration
{
  "mcpServers": {
    "mgs-toolbox-mcp": {
      "url": "https://michaelghelfistudios.com/api/v1/mcp"
    }
  }
}

Cline

Merge this into cline_mcp_settings.json (Cline → MCP Servers → Configure).
Cline configuration
{
  "mcpServers": {
    "mgs-toolbox-mcp": {
      "type": "streamableHttp",
      "url": "https://michaelghelfistudios.com/api/v1/mcp",
      "disabled": false
    }
  }
}

VS Code

Merge this server into .vscode/mcp.json. Use MCP: List Servers to start mgs-toolbox-mcp and inspect its tools.
VS Code configuration
{
  "servers": {
    "mgs-toolbox-mcp": {
      "type": "http",
      "url": "https://michaelghelfistudios.com/api/v1/mcp"
    }
  }
}

Gemini CLI

Run this once. It writes .gemini/settings.json in the current project; pass --scope user for ~/.gemini/settings.json.
Gemini CLI configuration
gemini mcp add --transport http mgs-toolbox-mcp https://michaelghelfistudios.com/api/v1/mcp

Claude Desktop

Open Claude Settings > Connectors > Add custom connector, enter this server URL and enable it for the conversation. This is a manual remote-connector handoff, not a desktop JSON configuration.
Claude Desktop configuration
https://michaelghelfistudios.com/api/v1/mcp

Windsurf

Merge this into ~/.codeium/windsurf/mcp_config.json, then refresh MCP in Cascade. Windsurf remote servers use serverUrl, not url.
Windsurf configuration
{
  "mcpServers": {
    "mgs-toolbox-mcp": {
      "serverUrl": "https://michaelghelfistudios.com/api/v1/mcp"
    }
  }
}

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