Koskamo

Yunseul MCP

An MCP server providing deterministic Korean Saju (Four Pillars) calculations, including birth charts, luck flows, and monthly fortunes, based on precise solar terms and birth location coordinates.

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.

Yunseul MCP logo, by YunseulVendor evidenceStreamable HTTPNo sign-inEndpoint checked 2026-11-06Operated by Yunseul
MCP endpoint (Streamable HTTP)
https://yunseul.threebillions.com/api/agent/mcp
Vendor documentation

What its tools do

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

Not annotated (6)

6 of 6 have a description · 0 of 6 declare behavior hints · 0 of 5 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 yunseul.threebillions.com ·
  • Passed Endpoint is on the registry namespace domain ·
  • Availability 1 of 1 checks passed in 30 days

What you can do with it

  • Calculate Saju birth charts with precise solar terms
  • Retrieve monthly fortune reports and luck flows
  • Integrate deterministic fortune-telling into AI agents

Source and maintenance

Vendor evidenceRegistry 1.0.0
mcp-registry: com.threebillions.yunseul/saju@1.0.0Project website

Protocol and capabilities

Server
yunseul 1.0.0
MCP protocol negotiated in check
2025-11-25
Tools
6 advertised
Resources
0 advertised
Resource templates
0 advertised
Prompts
0 advertised
Server-advertised capabilities
{
  "tools": {
    "listChanged": false
  },
  "prompts": {
    "listChanged": false
  },
  "resources": {
    "subscribe": false,
    "listChanged": false
  },
  "experimental": {}
}

Server-provided instructions

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

한국 전통 사주(만세력) 계산 도구다. 모델을 부르지 않는 결정론적 계산이라 같은 입력이면 같은 답이다. list_prices 로 가격을 먼저 보고, 계산 도구는 Authorization: Bearer <API 키> 헤더로 부른다. 출생지는 한국 시·군·구 이름이어야 하고, 모르면 계산하지 않는다(과금 없음).

Tools

6 advertised

list_prices
Advertised by the server during the last successful anonymous check.

도구별 가격과 설명. 무료, 키 없이 부를 수 있다.

list_prices input schema
{
  "type": "object",
  "title": "list_pricesArguments",
  "properties": {}
}
list_prices output schema
{
  "type": "object",
  "title": "list_pricesOutput",
  "required": [
    "result"
  ],
  "properties": {
    "result": {
      "type": "object",
      "title": "Result",
      "additionalProperties": true
    }
  }
}
day_pillar
Advertised by the server during the last successful anonymous check.

특정 날짜의 일진(일주)과 절입 기준 월주·연주. (유료 $0.02/회 · API 키 필요)

day_pillar input schema
{
  "type": "object",
  "title": "day_pillarArguments",
  "required": [
    "date"
  ],
  "properties": {
    "date": {
      "type": "string",
      "title": "Date"
    }
  }
}
day_pillar output schema
{
  "type": "object",
  "title": "day_pillarOutput",
  "required": [
    "result"
  ],
  "properties": {
    "result": {
      "type": "object",
      "title": "Result",
      "additionalProperties": true
    }
  }
}
saju_chart
Advertised by the server during the last successful anonymous check.

사주 명식 — 네 기둥 여덟 글자와 십신·12운성·지장간·공망·신살·팔자관계·대운. (유료 $0.05/회 · API 키 필요)

saju_chart input schema
{
  "type": "object",
  "$defs": {
    "AgentBirth": {
      "type": "object",
      "title": "AgentBirth",
      "required": [
        "year",
        "month",
        "day"
      ],
      "properties": {
        "day": {
          "type": "integer",
          "title": "Day",
          "maximum": 31,
          "minimum": 1,
          "examples": [
            15
          ],
          "description": "출생 일"
        },
        "city": {
          "type": "string",
          "title": "City",
          "default": "서울",
          "maxLength": 30,
          "minLength": 1,
          "description": "출생지(한국 시·군·구 이름). 경도로 시주를 보정한다. 모르는 이름은 422"
        },
        "hour": {
          "anyOf": [
            {
              "type": "integer",
              "maximum": 23,
              "minimum": 0
            },
            {
              "type": "null"
            }
          ],
          "title": "Hour",
          "default": null,
          "description": "출생 시(0~23). 모르면 비운다 — 시주 없이 여섯 글자로 본다"
        },
        "year": {
          "type": "integer",
          "title": "Year",
          "maximum": 2100,
          "minimum": 1900,
          "examples": [
            1990
          ],
          "description": "출생 연도"
        },
        "month": {
          "type": "integer",
          "title": "Month",
          "maximum": 12,
          "minimum": 1,
          "examples": [
            5
          ],
          "description": "출생 월"
        },
        "gender": {
          "enum": [
            "M",
            "F"
          ],
          "type": "string",
          "title": "Gender",
          "default": "M",
          "description": "성별 — 대운의 순행·역행을 가른다"
        },
        "minute": {
          "anyOf": [
            {
              "type": "integer",
              "maximum": 59,
              "minimum": 0
            },
            {
              "type": "null"
            }
          ],
          "title": "Minute",
          "default": null,
          "description": "출생 분"
        },
        "is_lunar": {
          "type": "boolean",
          "title": "Is Lunar",
          "default": false,
          "description": "음력 생일이면 true"
        },
        "is_leap_month": {
          "type": "boolean",
          "title": "Is Leap Month",
          "default": false,
          "description": "음력 윤달이면 true"
        }
      }
    }
  },
  "title": "saju_chartArguments",
  "required": [
    "birth"
  ],
  "properties": {
    "birth": {
      "$ref": "#/$defs/AgentBirth"
    }
  }
}
saju_chart output schema
{
  "type": "object",
  "title": "saju_chartOutput",
  "required": [
    "result"
  ],
  "properties": {
    "result": {
      "type": "object",
      "title": "Result",
      "additionalProperties": true
    }
  }
}
unse
Advertised by the server during the last successful anonymous check.

운세 흐름 — 시작일부터 1~12개월 일운·월운이 원국과 맺는 합·충·형·해·파. (유료 $0.1/회 · API 키 필요)

unse input schema
{
  "type": "object",
  "$defs": {
    "AgentBirth": {
      "type": "object",
      "title": "AgentBirth",
      "required": [
        "year",
        "month",
        "day"
      ],
      "properties": {
        "day": {
          "type": "integer",
          "title": "Day",
          "maximum": 31,
          "minimum": 1,
          "examples": [
            15
          ],
          "description": "출생 일"
        },
        "city": {
          "type": "string",
          "title": "City",
          "default": "서울",
          "maxLength": 30,
          "minLength": 1,
          "description": "출생지(한국 시·군·구 이름). 경도로 시주를 보정한다. 모르는 이름은 422"
        },
        "hour": {
          "anyOf": [
            {
              "type": "integer",
              "maximum": 23,
              "minimum": 0
            },
            {
              "type": "null"
            }
          ],
          "title": "Hour",
          "default": null,
          "description": "출생 시(0~23). 모르면 비운다 — 시주 없이 여섯 글자로 본다"
        },
        "year": {
          "type": "integer",
          "title": "Year",
          "maximum": 2100,
          "minimum": 1900,
          "examples": [
            1990
          ],
          "description": "출생 연도"
        },
        "month": {
          "type": "integer",
          "title": "Month",
          "maximum": 12,
          "minimum": 1,
          "examples": [
            5
          ],
          "description": "출생 월"
        },
        "gender": {
          "enum": [
            "M",
            "F"
          ],
          "type": "string",
          "title": "Gender",
          "default": "M",
          "description": "성별 — 대운의 순행·역행을 가른다"
        },
        "minute": {
          "anyOf": [
            {
              "type": "integer",
              "maximum": 59,
              "minimum": 0
            },
            {
              "type": "null"
            }
          ],
          "title": "Minute",
          "default": null,
          "description": "출생 분"
        },
        "is_lunar": {
          "type": "boolean",
          "title": "Is Lunar",
          "default": false,
          "description": "음력 생일이면 true"
        },
        "is_leap_month": {
          "type": "boolean",
          "title": "Is Leap Month",
          "default": false,
          "description": "음력 윤달이면 true"
        }
      }
    }
  },
  "title": "unseArguments",
  "required": [
    "birth"
  ],
  "properties": {
    "birth": {
      "$ref": "#/$defs/AgentBirth"
    },
    "months": {
      "type": "integer",
      "title": "Months",
      "default": 1
    },
    "start_date": {
      "anyOf": [
        {
          "type": "string"
        },
        {
          "type": "null"
        }
      ],
      "title": "Start Date",
      "default": null
    }
  }
}
unse output schema
{
  "type": "object",
  "title": "unseOutput",
  "required": [
    "result"
  ],
  "properties": {
    "result": {
      "type": "object",
      "title": "Result",
      "additionalProperties": true
    }
  }
}
monthly
Advertised by the server during the last successful anonymous check.

이달의 세운 — 양력 월(YYYY-MM)의 절입 기준 월주·십신·일지 관계·좋은 날·주의 날. (유료 $0.1/회 · API 키 필요)

monthly input schema
{
  "type": "object",
  "$defs": {
    "AgentBirth": {
      "type": "object",
      "title": "AgentBirth",
      "required": [
        "year",
        "month",
        "day"
      ],
      "properties": {
        "day": {
          "type": "integer",
          "title": "Day",
          "maximum": 31,
          "minimum": 1,
          "examples": [
            15
          ],
          "description": "출생 일"
        },
        "city": {
          "type": "string",
          "title": "City",
          "default": "서울",
          "maxLength": 30,
          "minLength": 1,
          "description": "출생지(한국 시·군·구 이름). 경도로 시주를 보정한다. 모르는 이름은 422"
        },
        "hour": {
          "anyOf": [
            {
              "type": "integer",
              "maximum": 23,
              "minimum": 0
            },
            {
              "type": "null"
            }
          ],
          "title": "Hour",
          "default": null,
          "description": "출생 시(0~23). 모르면 비운다 — 시주 없이 여섯 글자로 본다"
        },
        "year": {
          "type": "integer",
          "title": "Year",
          "maximum": 2100,
          "minimum": 1900,
          "examples": [
            1990
          ],
          "description": "출생 연도"
        },
        "month": {
          "type": "integer",
          "title": "Month",
          "maximum": 12,
          "minimum": 1,
          "examples": [
            5
          ],
          "description": "출생 월"
        },
        "gender": {
          "enum": [
            "M",
            "F"
          ],
          "type": "string",
          "title": "Gender",
          "default": "M",
          "description": "성별 — 대운의 순행·역행을 가른다"
        },
        "minute": {
          "anyOf": [
            {
              "type": "integer",
              "maximum": 59,
              "minimum": 0
            },
            {
              "type": "null"
            }
          ],
          "title": "Minute",
          "default": null,
          "description": "출생 분"
        },
        "is_lunar": {
          "type": "boolean",
          "title": "Is Lunar",
          "default": false,
          "description": "음력 생일이면 true"
        },
        "is_leap_month": {
          "type": "boolean",
          "title": "Is Leap Month",
          "default": false,
          "description": "음력 윤달이면 true"
        }
      }
    }
  },
  "title": "monthlyArguments",
  "required": [
    "birth",
    "period"
  ],
  "properties": {
    "birth": {
      "$ref": "#/$defs/AgentBirth"
    },
    "period": {
      "type": "string",
      "title": "Period"
    }
  }
}
monthly output schema
{
  "type": "object",
  "title": "monthlyOutput",
  "required": [
    "result"
  ],
  "properties": {
    "result": {
      "type": "object",
      "title": "Result",
      "additionalProperties": true
    }
  }
}
compatibility
Advertised by the server during the last successful anonymous check.

궁합 — 두 명식의 일간·일지 합충과 오행 보완. relation: 연인|직장/동료|친구|사업 파트너(십신·역할·주의점 추가). (유료 $0.1/회 · API 키 필요)

compatibility input schema
{
  "type": "object",
  "$defs": {
    "AgentBirth": {
      "type": "object",
      "title": "AgentBirth",
      "required": [
        "year",
        "month",
        "day"
      ],
      "properties": {
        "day": {
          "type": "integer",
          "title": "Day",
          "maximum": 31,
          "minimum": 1,
          "examples": [
            15
          ],
          "description": "출생 일"
        },
        "city": {
          "type": "string",
          "title": "City",
          "default": "서울",
          "maxLength": 30,
          "minLength": 1,
          "description": "출생지(한국 시·군·구 이름). 경도로 시주를 보정한다. 모르는 이름은 422"
        },
        "hour": {
          "anyOf": [
            {
              "type": "integer",
              "maximum": 23,
              "minimum": 0
            },
            {
              "type": "null"
            }
          ],
          "title": "Hour",
          "default": null,
          "description": "출생 시(0~23). 모르면 비운다 — 시주 없이 여섯 글자로 본다"
        },
        "year": {
          "type": "integer",
          "title": "Year",
          "maximum": 2100,
          "minimum": 1900,
          "examples": [
            1990
          ],
          "description": "출생 연도"
        },
        "month": {
          "type": "integer",
          "title": "Month",
          "maximum": 12,
          "minimum": 1,
          "examples": [
            5
          ],
          "description": "출생 월"
        },
        "gender": {
          "enum": [
            "M",
            "F"
          ],
          "type": "string",
          "title": "Gender",
          "default": "M",
          "description": "성별 — 대운의 순행·역행을 가른다"
        },
        "minute": {
          "anyOf": [
            {
              "type": "integer",
              "maximum": 59,
              "minimum": 0
            },
            {
              "type": "null"
            }
          ],
          "title": "Minute",
          "default": null,
          "description": "출생 분"
        },
        "is_lunar": {
          "type": "boolean",
          "title": "Is Lunar",
          "default": false,
          "description": "음력 생일이면 true"
        },
        "is_leap_month": {
          "type": "boolean",
          "title": "Is Leap Month",
          "default": false,
          "description": "음력 윤달이면 true"
        }
      }
    }
  },
  "title": "compatibilityArguments",
  "required": [
    "a",
    "b"
  ],
  "properties": {
    "a": {
      "$ref": "#/$defs/AgentBirth"
    },
    "b": {
      "$ref": "#/$defs/AgentBirth"
    },
    "relation": {
      "type": "string",
      "title": "Relation",
      "default": "연인"
    }
  }
}
compatibility output schema
{
  "type": "object",
  "title": "compatibilityOutput",
  "required": [
    "result"
  ],
  "properties": {
    "result": {
      "type": "object",
      "title": "Result",
      "additionalProperties": true
    }
  }
}

Prompts

0 advertised

No prompt definitions available.

Resources

0 advertised

No resource definitions available.

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
1323 ms
95th percentile latency
1323 ms

Maintenance history

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

  • · probe · passed · 1323 ms · metadata changed · 6 tool(s), 0 resource(s), 0 resource template(s), 0 prompt(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 yunseul-mcp https://yunseul.threebillions.com/api/agent/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 yunseul-mcp --url https://yunseul.threebillions.com/api/agent/mcp

Cursor

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

Cline

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

VS Code

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

Let your agent find its tools

Find servers like Yunseul MCP from your agent. Add Koskamo once to search the index for endpoints, access requirements, and client setup. Public discovery needs no key.

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