Megaten Fusion
MCP server for Megami Tensei fusion tools - supports 40+ games
Ask AI about Megaten Fusion
Powered by Claude · Grounded in docs
I know everything about Megaten Fusion. Ask me about installation, configuration, usage, or troubleshooting.
0/500
Reviews
Documentation
Megaten Fusion MCP
A Model Context Protocol (MCP) server that provides fusion tool data for 40+ Megami Tensei games. Use it with Claude Desktop, Cursor, or any MCP-compatible AI.
Supported Games
- Shin Megami Tensei: SMT1, SMT2, SMT: If..., SMT3: Nocturne, SMT: Strange Journey, SMT4, SMT4A, SMT5
- Persona: P1, P2:IS, P2:EP, P3, P3R, P4, P5, P5S, P5T, PQ, PQ2
- Devil Summoner: Soul Hackers, Raidou 1 & 2, Soul Hackers 2
- Devil Survivor: DS1, DS2
- Others: Majin Tensei, Kyuyaku Megami Tensei And more! Uses a submodule of megaten-fusion-tool
Installation
With Claude Desktop
Add to your Claude Desktop config (~/Library/Application Support/Claude/claude_desktop_config.json on macOS):
{
"mcpServers": {
"megaten-fusion": {
"command": "npx",
"args": ["-y", "megaten-fusion-mcp"]
}
}
}
With Cursor
Add to your .cursor/mcp.json:
{
"mcpServers": {
"megaten-fusion": {
"command": "npx",
"args": ["-y", "megaten-fusion-mcp"]
}
}
}
From Source
git clone --recursive https://github.com/kreatoo/megaten-fusion-mcp.git
cd megaten-fusion-mcp
bun install
bun run start
Available Tools
Core Tools
| Tool | Description |
|---|---|
list_games | List all supported games |
get_demon | Get demon/persona stats, skills, and info |
search_demons | Search demons by race, level, name, skills, or elemental properties |
get_skill | Get skill info and which demons learn it |
search_skills | Search skills by name or element |
Fusion Mechanics
| Tool | Description |
|---|---|
get_fusion_recipes | Find what two demons fuse into |
get_fission_recipes | Find all combinations to create a demon |
get_fusion_chart | Get race fusion chart for a game |
get_special_recipe | Get special/multi-demon fusion recipes |
find_fusion_recipe_with_skills | Find a recipe to create a demon with specific inherited skills |
Elemental & Resistance Data
| Tool | Description |
|---|---|
get_demon_weaknesses | Get a demon's weak/strong/null/repel/drain elements |
Game-Specific Features
| Tool | Description |
|---|---|
get_racial_skill | Get the unique skill for a race (some games only) |
get_skill_inheritance | Get which skill types a demon can inherit (some games only) |
get_demon_evolutions | Get evolution chains (some games only) |
Enhanced search_demons Filters
The search_demons tool now supports additional filters:
skill- Filter demons that learn a specific skillweakTo- Filter demons weak to an element (e.g., "fire", "ice")resistTo- Filter demons that resist/null/repel/drain an element
Example Queries
- "What personas can I make with Jack Frost in Persona 5?"
- "How do I fuse Yoshitsune in SMT5?"
- "What demons learn Megidolaon in Persona 3 Reload?"
- "List all Judgement personas above level 70 in P5"
- "What races fuse into Fool in Persona 4?"
- "Find a recipe to make High Pixie with Diarama in Persona 5"
- "What skills can Isis inherit in P5?"
Updating Game Data
This project uses the megaten-fusion-tool repo as a git submodule. To update to the latest game data:
git submodule update --remote
Data Source
All game data comes from aqiu384/megaten-fusion-tool - an excellent open-source fusion calculator. This MCP server simply wraps that data for AI accessibility.
License
Unlicense - see LICENSE for details.
The upstream megaten-fusion-tool is also Unlicense.
