Korean Saju (Four Pillars) MCP server with 5 free birth-chart analysis tools.
Cafe MCP server is a hosted integration for AI assistants that speak the Model Context Protocol. Korean Saju (Four Pillars) MCP server with 5 free birth-chart analysis tools.
A formal W3C OWL 2 ontology for Korean Saju (사주명리학), grounded in classical Myeongli theory and six canonical treatises. Released under CC BY 4.0 for academic use, system integration, and downstream development.
Being a remote server, there is no local install. You register the endpoint with your client, authorise it once, and the tools appear.
Once Cafe is connected, these are the calls the assistant has available:
saju_chart — Four Pillars chart — stems/branches, Ten Gods, Spirit Starsohaeng_balance — Five Elements (五行) distributiongyeokguk — Chart structure/pattern (格局)eumyang_johu — Yin-Yang & Climate (陰陽·調候) balanceyongshin_candidates — Classical 5-type Yongshin (用神) candidatesYou will need one environment variable: CAFE_MCP_API_URL. The server will not start without them, which is usually why the tools fail to appear on a first run. Keep credentials in your client's env block or a secrets manager rather than in a file you might commit.
This sits in the developer tooling group, where several servers overlap in what they claim to do but differ sharply once you actually set them up. Cafe's toolset — saju_chart, ohaeng_balance, gyeokguk and 2 more — is a fair guide to whether it matches your workflow. It is maintained by dangamsoft; worth a glance at recent repository activity before you build anything load-bearing on it.
This entry was verified against Cafe's own documentation before publication; SyncDev keeps the directory reviewed rather than auto-generated.
| Tool | What it does |
|---|---|
| saju_chart | Four Pillars chart — stems/branches, Ten Gods, Spirit Stars |
| ohaeng_balance | Five Elements (五行) distribution |
| gyeokguk | Chart structure/pattern (格局) |
| eumyang_johu | Yin-Yang & Climate (陰陽·調候) balance |
| yongshin_candidates | Classical 5-type Yongshin (用神) candidates |
{
"mcpServers": {
"cafe-mcp": {
"command": "npx",
"args": ["-y", "@dangamsoft/cafe-mcp"]
}
}
}Configuration as documented by the project. Restart the client after saving.
| Variable | Description | Required |
|---|---|---|
| CAFE_MCP_API_URL | Endpoint or connection string the server talks to. | Yes |
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