MCP (Model Context Protocol) lets a compatible AI assistant use tools and information from another app. For a game master, that can mean searching campaign notes, recalling NPC details or looking up the right edition of a rule without leaving the conversation. These five picks cover different jobs: LoreKeeper leads for connected campaign lore and creative preparation, while the alternatives focus on local campaign management or rules reference.
#1 · Connecting your campaign lore, characters and artwork to your AI assistant
LoreKeeper
★★★★★ · 5/5 editorial rating
Our number-one pick and five-star editorial recommendation. Think of LoreKeeper as a “Higgsfield for role-playing games”: a creative workspace centred on your worlds, characters and imagery, with MCP bringing that campaign context into a compatible assistant. This is our editorial analogy, not an affiliation or a claim of identical features. The official connector searches your Lore Library, reads notes and recaps, retrieves characters and saved portraits, and can create new pictures when you explicitly allow credit spending.
Why choose it
Ask for a previously-on recap, find a promise the party made, check a twist against existing lore or draft NPC dialogue using your saved character details. The published documentation covers Claude, ChatGPT, Claude Code and Cursor, with sign-in to your LoreKeeper account. The MCP endpoint is https://api.lorekeeper.com/mcp.
Things to know
A LoreKeeper account and a compatible MCP client are required. The connector does not edit or delete your lore. New pictures require permission and credits; retrieved notes become part of the chat with your AI provider, whose own data settings apply. Follow the current provider setup instructions because client support can change.
Visit LoreKeeper
Source: published provider features
Read our LoreKeeper catalogue entry
#2 · Local campaign management with tools that can update your data
Mimir MCP
Mimir's MCP server runs alongside its desktop app and shares its SQLite database. Its documented tools cover campaigns, modules, documents, characters, maps, catalogue search and homebrew content, making it an alternative for GMs who want an assistant to work directly with a local campaign workspace.
Why choose it
The tool reference includes document editing, character inventory, campaign export and procedural Dungeondraft map generation. Unlike a read-only lore connector, it can make persistent changes to the campaign.
Things to know
Requires local setup and an MCP client that can run the stdio server. Some tools can delete campaigns or other records, so review permissions and back up the database. Map generation has its own setup requirements; consult the documentation.
Visit Mimir MCP
Source: published provider features
#3 · Rules search across several tabletop RPG systems
GM Toolkit TTRPG MCP
GM Toolkit's TTRPG MCP documents semantic search over Pathfinder 2e, Starfinder 2e, Draw Steel, D&D's 2014 and 2024 SRDs, and Daggerheart. It is a rules-reference option rather than a store for your private campaign history.
Why choose it
Separate search and entry tools for each game help keep a rules question tied to its system. The project provides a hosted HTTP endpoint and an authenticated setup flow.
Things to know
Requires a GM Toolkit account, and service limits can change. Coverage follows the indexed sources rather than every published rulebook; check the cited entry and edition before using an answer at the table.
Visit GM Toolkit TTRPG MCP
Source: published provider features
#4 · Developer-friendly Open5e lookups and encounter or character-build helpers
D&D 5E MCP Server
This community server by heffrey78 exposes Open5e content to an MCP client. Its documented tools cover spells, monsters, classes, species, equipment and rules, plus encounter-building and character-build helpers.
Why choose it
Ruleset and source filters help separate 2014, 2024 and other supported material. A local Node.js process connects over stdio, which suits technically confident GMs who want control over their setup.
Things to know
Requires Node.js, a local build and network access to Open5e. Available material and missing fields depend on upstream data; generated builds use opinionated selection heuristics and still need review.
Visit D&D 5E MCP Server
Source: published provider features
#5 · Focused D&D rules lookup with an explicit edition switch
D&D Rules MCP Server
Justin Ritchie's rules server uses Open5e for spell, creature, condition, class, item and rules-section lookups. Its published interface defaults to the 2024 SRD and accepts an edition argument for the original 2014 rules.
Why choose it
The narrow rules-reference scope and explicit edition selection are useful when checking a spell or condition during preparation. The repository documents a local stdio setup without an account for this server.
Things to know
Requires a local Node.js build and access to Open5e. It is not a D&D Beyond integration or a campaign-memory tool. The README lists a private/personal-use licence, so check permissions before reusing or redistributing the code.
Visit D&D Rules MCP Server
Source: published provider features
Frequently asked questions
What is an MCP server for D&D or TTRPGs?
It exposes tools or data to a compatible AI assistant using the Model Context Protocol. Some servers search rules references; others connect your campaign notes, characters or creative assets. MCP itself does not guarantee factual answers, privacy or support in every client.
Why is LoreKeeper our first pick?
Its published connector combines your own campaign lore, character details and saved artwork in the assistant you use, with optional image generation. That earns our five-star editorial recommendation for connected campaign preparation. This is based on published features, not a hands-on performance test.
Is LoreKeeper really Higgsfield for role-playing games?
That is an editorial comparison for its RPG-focused creative workflow, not a statement that the products are related or have identical capabilities. The MCP documentation describes campaign lookup, character references and permission-controlled picture generation; this guide does not claim Higgsfield-style video features.
Where do I connect LoreKeeper MCP?
Start at https://www.lorekeeper.com/mcp for current setup instructions. The documented MCP endpoint is https://api.lorekeeper.com/mcp. Sign in with your LoreKeeper account and review permissions; your client must support the relevant connection and sign-in flow.
Can these tools change or expose my campaign notes?
Permissions differ. LoreKeeper says its connector does not change or delete lore, with new pictures requiring permission and credits. Mimir includes write and delete tools. Data retrieved into an AI chat is also subject to that AI provider's settings, so review both sides before connecting private notes.