Saju MCP Server
Server Configuration
Describes the environment variables required to run the server.
| Name | Required | Description | Default |
|---|---|---|---|
| SAJU_API_KEY | Yes | Your Saju API key (sajuapi_free_...), sent as the X-API-Key header | |
| SAJU_API_BASE | No | Override the upstream base URL (e.g., for a staging deploy) | https://saju-api.pages.dev |
Instructions
Guidance the server publishes about itself, which clients place ahead of the tool catalog so the model reads it before choosing anything.
This server publishes no instructions, or was last inspected before Glama recorded them.
Capabilities
Features and capabilities supported by this server
Protocol revision2025-11-25
| Capability | Details |
|---|---|
| tools | {
"listChanged": true
} |
Tools
Functions exposed to the LLM to take actions
| Name | Description |
|---|---|
| saju_calculateA | Compute the Korean Four Pillars of Destiny (사주팔자 / Bazi) from a solar birthdate. Returns the year/month/day/hour pillars (heavenly stem + earthly branch, with hanja), the five-element distribution (wood/fire/earth/metal/water), the Day Master, and the zodiac animal. |
| saju_interpretA | Full Saju interpretation from a solar birthdate: the Four Pillars plus Ten Gods (십신), hidden stems, life stages, interactions, Yongshin (용신 / useful god), Daeun (대운 / luck pillars), and human-readable summaries in the requested language. |
| saju_compatibilityA | Score two-person compatibility (궁합) from 0–100 based on both people's Saju. Returns the overall score and a breakdown (element balance, Day Master relation, branch harmony, branch clash) plus each person's Day Master and zodiac. |
| saju_dailyA | Daily fortune snapshot (0–100 score + advice) for a given Day Master and date. Provide the Day Master either as a Korean stem character (갑, 을, 병, 정, 무, 기, 경, 신, 임, 계) or an English alias (e.g. wood_yang, water_yin). The Day Master comes from a prior saju_calculate / saju_interpret call (day_master.stem). |
Prompts
Interactive templates invoked by user choice
| Name | Description |
|---|---|
No prompts | |
Resources
Contextual data attached and managed by the client
| Name | Description |
|---|---|
No resources | |
TDQS
Scored across 4 tools
Each tool has a clearly distinct purpose: calculation, compatibility, daily fortune, and full interpretation. No overlap or ambiguity.
All tools follow the consistent prefix 'saju_' with descriptive verbs/adjectives in snake_case, creating a predictable pattern.
Four tools is perfectly scoped for a niche domain like saju, covering core functionalities without excess or deficiency.
The set provides a complete lifecycle: calculation, interpretation, compatibility, and daily fortune. No obvious gaps.