Ishigaki Ferries & Islands

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Ishigaki and Yaeyama ferries: status today, next boats, day planner, which island, best month.

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{
  "_meta": {
    "io.modelcontextprotocol.registry/official": {
      "status": "active",
      "isLatest": true,
      "updatedAt": "2026-11-08T06:21:29.384774Z",
      "publishedAt": "2026-11-08T06:21:29.384774Z",
      "statusChangedAt": "2026-11-08T06:21:29.384774Z"
    }
  },
  "server": {
    "name": "info.ishigaki/ferries",
    "icons": [
      {
        "src": "https://ishigaki.info/favicon.svg",
        "mimeType": "image/svg+xml"
      }
    ],
    "title": "Ishigaki Ferries & Islands",
    "$schema": "https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json",
    "remotes": [
      {
        "url": "https://ishigaki.info/mcp",
        "type": "streamable-http"
      }
    ],
    "version": "1.1.0",
    "websiteUrl": "https://ishigaki.info/developers/",
    "description": "Ishigaki and Yaeyama ferries: status today, next boats, day planner, which island, best month."
  }
}

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https://ishigaki.info/mcp

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best_time Read-only

Ishigaki and Yaeyama month by month: JMA temperature, rain and sunshine normals, typhoon approaches, 2025 visitor numbers, and what applies that month (rainy season, typhoons, habu jellyfish, north winds that cancel ferries, Japanese holiday peaks, festivals). Give a month, an interest, or neither for the whole year. Example: "Is October a good time to see manta rays on Ishigaki?"

monthinteger

Month (1 to 12)

intereststring

What the trip is for

Try it

Call this server's tools from your browser. Nothing to install.

https://ishigaki.info/mcp

Requests go through mcptry because browsers can't call most MCP servers directly. Header values are sent to the server for that request only and are never stored or logged.

Tool list from our last check. Connect live to refresh it.

best_time Read-only

monthinteger

Month (1 to 12)

intereststring

What the trip is for

Tools (8)

best_time

read-only

Argument	Type	Description
month	integer	Month (1 to 12)
interest	string	What the trip is for

Input schema (JSON)

{
  "type": "object",
  "properties": {
    "month": {
      "type": "integer",
      "maximum": 12,
      "minimum": 1,
      "description": "Month (1 to 12)"
    },
    "interest": {
      "enum": [
        "beach_snorkeling",
        "diving_mantas",
        "lower_prices",
        "quiet",
        "calm_ferries",
        "culture_festivals"
      ],
      "type": "string",
      "description": "What the trip is for"
    }
  },
  "additionalProperties": false
}

ferry_cancellation_history

Day-by-day record of cancellations per route since 7 November 2026, from readings of the operators' status pages several times a day (worst reading of the day per operator), with a per-route summary: days recorded, days with any cancellation, days fully cancelled. Example: "How often has the Hateruma ferry been cancelled lately?"

read-only

Argument	Type	Description
route	string
months	integer	Calendar months back, including the current one

Input schema (JSON)

{
  "type": "object",
  "properties": {
    "route": {
      "enum": [
        "taketomi",
        "kohama",
        "kuroshima",
        "iriomote-ohara",
        "iriomote-uehara",
        "hatoma",
        "hateruma",
        "all"
      ],
      "type": "string",
      "default": "all"
    },
    "months": {
      "type": "integer",
      "default": 2,
      "maximum": 13,
      "minimum": 1,
      "description": "Calendar months back, including the current one"
    }
  },
  "additionalProperties": false
}

ferry_status

Whether the ferries from Ishigaki to Taketomi, Kohama, Kuroshima, Iriomote (Ohara, Uehara), Hatoma and Hateruma are running today, per operator (Anei Kanko, YKF), read from the operators' own status pages. Values: ok, partial (some sailings cancelled), cancelled, or null when the operator has not posted yet (they post in the morning, Japan time). Example: "Are the ferries to Taketomi running today?"

read-only

No arguments.

Input schema (JSON)

{
  "type": "object",
  "properties": {},
  "additionalProperties": false
}

island_guide

A recommended day on one island from Ishigaki, step by step (when, what, source), plus getting around, food, children, rainy days, staying overnight, local rules, crossing time, boats a day and the cheapest adult fare. Example: "What should I do on a day trip to Kuroshima?"

read-only

Argument	Type	Description
island*	string	Island id

Input schema (JSON)

{
  "type": "object",
  "required": [
    "island"
  ],
  "properties": {
    "island": {
      "enum": [
        "taketomi",
        "iriomote",
        "kohama",
        "kuroshima",
        "hatoma",
        "hateruma"
      ],
      "type": "string",
      "description": "Island id"
    }
  },
  "additionalProperties": false
}

list_routes

The seven ferry routes from Ishigaki Port with operators, crossing time, boats a day, first and last boat, and the page that explains each. Example: "Which islands can I reach by ferry from Ishigaki?"

read-only

No arguments.

Input schema (JSON)

{
  "type": "object",
  "properties": {},
  "additionalProperties": false
}

next_ferries

The next scheduled boats on one route from the operators' published timetables, in Japan time, with fares. direction 'out' is Ishigaki to the island, 'back' is the island to Ishigaki. Example: "When is the last boat back from Iriomote (Ohara) to Ishigaki?"

read-only

Argument	Type	Description
after	string	HH:MM Japan time; default now
limit	integer
route*	string	Route id
direction	string

Input schema (JSON)

{
  "type": "object",
  "required": [
    "route"
  ],
  "properties": {
    "after": {
      "type": "string",
      "pattern": "^\\d{1,2}:\\d{2}$",
      "description": "HH:MM Japan time; default now"
    },
    "limit": {
      "type": "integer",
      "default": 3,
      "maximum": 12,
      "minimum": 1
    },
    "route": {
      "enum": [
        "taketomi",
        "kohama",
        "kuroshima",
        "iriomote-ohara",
        "iriomote-uehara",
        "hatoma",
        "hateruma"
      ],
      "type": "string",
      "description": "Route id"
    },
    "direction": {
      "enum": [
        "out",
        "back"
      ],
      "type": "string",
      "default": "out"
    }
  },
  "additionalProperties": false
}

plan_island_day

Earliest published boats for up to three islands in one day from Ishigaki: out, back, time on each island, when you are back in Ishigaki, or why it cannot be done. Uses the longest printed crossing, 30 minutes between boats, no backup sailings. Boats between islands are not used (you return to Ishigaki in between). Example: "Can I do Taketomi and Kohama in one day from Ishigaki?"

read-only

Argument	Type	Description
start	string	Earliest departure from Ishigaki, HH:MM; default 07:00
islands*	array	Route ids in the order you want to visit
stay_minutes	integer	Time wanted on each island

Input schema (JSON)

{
  "type": "object",
  "required": [
    "islands"
  ],
  "properties": {
    "start": {
      "type": "string",
      "pattern": "^\\d{1,2}:\\d{2}$",
      "description": "Earliest departure from Ishigaki, HH:MM; default 07:00"
    },
    "islands": {
      "type": "array",
      "items": {
        "enum": [
          "taketomi",
          "kohama",
          "kuroshima",
          "iriomote-ohara",
          "iriomote-uehara",
          "hatoma",
          "hateruma"
        ],
        "type": "string"
      },
      "maxItems": 3,
      "minItems": 1,
      "description": "Route ids in the order you want to visit"
    },
    "stay_minutes": {
      "type": "integer",
      "default": 120,
      "maximum": 600,
      "minimum": 30,
      "description": "Time wanted on each island"
    }
  },
  "additionalProperties": false
}

which_island

Ranks the six islands reachable by ferry from Ishigaki (Taketomi, Iriomote, Kohama, Kuroshima, Hatoma, Hateruma) for the traveller's time, interests, month, children and sea conditions, with the reasons, the catches, crossing time, boats a day and the cheapest adult fare. Example: "I have one day on Ishigaki with two small kids and want a beach. Which island should we visit?"

read-only

Argument	Type	Description
month	integer	Month of the trip (1 to 12); September to April brings north winds that cancel open-sea routes
interests	array	What the traveller wants to do
time_available	string	How long the traveller has for the island
rough_sea_or_windy	boolean	True if the forecast is windy or the sea is rough
with_small_children	boolean

Input schema (JSON)

{
  "type": "object",
  "properties": {
    "month": {
      "type": "integer",
      "maximum": 12,
      "minimum": 1,
      "description": "Month of the trip (1 to 12); September to April brings north winds that cancel open-sea routes"
    },
    "interests": {
      "type": "array",
      "items": {
        "enum": [
          "beach",
          "snorkeling",
          "cycling",
          "village_culture",
          "jungle_rivers_waterfalls",
          "wildlife",
          "sea_turtles",
          "quiet",
          "stargazing",
          "views",
          "walking"
        ],
        "type": "string"
      },
      "maxItems": 5,
      "description": "What the traveller wants to do"
    },
    "time_available": {
      "enum": [
        "half_day",
        "full_day",
        "overnight",
        "several_days"
      ],
      "type": "string",
      "description": "How long the traveller has for the island"
    },
    "rough_sea_or_windy": {
      "type": "boolean",
      "default": false,
      "description": "True if the forecast is windy or the sea is rough"
    },
    "with_small_children": {
      "type": "boolean",
      "default": false
    }
  },
  "additionalProperties": false
}

Ishigaki Ferries & Islands

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best_time Read-only

Ishigaki Ferries & Islands

Registry entry

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best_time Read-only

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Tools (8)

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