Penguin Statistics MCP
A read-only remote MCP server providing crowdsourced Arknights drop rate statistics for CN, US, JP, and KR servers. It allows AI agents to query item drop rates, search for items and stages, list events, and retrieve dataset information without requiring authentication.
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.
MCP endpoint (Streamable HTTP)
https://mcp.penguin-stats.io/mcpWhat you can do with it
- Look up drop rates for specific items in Arknights
- Search for stages and items by name or code
- List active events for a specific game server
- Retrieve dataset metadata and time windows
Source and maintenance
Vendor evidenceRegistry 1.0.0
- Maintenance checked
Protocol and capabilities
- Server
- io.penguin-stats/penguin-stats 3.14.71
- MCP protocol
- 2025-06-18
- Tools
- 6 advertised
- Resources
- Not advertised
- Resource templates
- Not advertised
- Prompts
- Not advertised
Server-advertised capabilities
{
"tools": {}
}Server-provided instructions
Untrusted server output shown for inspection. It is not Koskamo guidance and is excluded from knowledge search.
Tools
6 advertised
get_dataset_info — Dataset info
Advertised read-only
Describes the Penguin Statistics drop data: what its numbers mean (times, quantity, drop rate, sanity per item, window), the game servers with their time zones and how fresh the data of each is, the caveats, the license and how to credit it. Call it when unsure how to read or cite the numbers.
get_dataset_info input schema
{
"type": "object",
"properties": {},
"additionalProperties": false
}get_dataset_info output schema
{
"type": "object",
"required": [
"name",
"description",
"website",
"docs",
"openapi",
"license",
"licenseUrl",
"servers",
"definitions",
"caveats",
"source"
],
"properties": {
"docs": {
"type": "string",
"description": "Documentation of the public API of Penguin Statistics"
},
"name": {
"type": "string"
},
"source": {
"type": "object",
"required": [
"name",
"url",
"license",
"licenseUrl",
"attribution"
],
"properties": {
"url": {
"type": "string",
"description": "The page of this data on Penguin Statistics, or its home page"
},
"name": {
"type": "string"
},
"license": {
"type": "string"
},
"licenseUrl": {
"type": "string"
},
"attribution": {
"type": "string",
"description": "The credit to give wherever this data is used"
}
},
"additionalProperties": false
},
"caveats": {
"type": [
"null",
"array"
],
"items": {
"type": "string"
}
},
"license": {
"type": "string"
},
"openapi": {
"type": "string",
"description": "OpenAPI (Swagger 2.0) document of the public API"
},
"servers": {
"type": [
"null",
"array"
],
"items": {
"type": "object",
"required": [
"server",
"timezone",
"matrixAvailable"
],
"properties": {
"server": {
"type": "string"
},
"dataAsOf": {
"type": "string",
"description": "When the drop counts of the server were last calculated, RFC 3339 in UTC; not how recent its stages and events are (see latestEventOpenTime)"
},
"timezone": {
"type": "string",
"description": "Time zone of the days of the server, e.g. UTC+8"
},
"matrixAvailable": {
"type": "boolean",
"description": "Whether the drop data of the server is loaded"
},
"latestEventOpenTime": {
"type": "string",
"description": "Open time of the newest event Penguin Statistics lists for the server, RFC 3339 in UTC: a newer event running in the game may be missing from its catalog"
}
},
"additionalProperties": false
}
},
"website": {
"type": "string"
},
"licenseUrl": {
"type": "string"
},
"definitions": {
"type": "object",
"required": [
"times",
"quantity",
"dropRate",
"sanityPerItem",
"window"
],
"properties": {
"times": {
"type": "string"
},
"window": {
"type": "string"
},
"dropRate": {
"type": "string"
},
"quantity": {
"type": "string"
},
"sanityPerItem": {
"type": "string"
}
},
"additionalProperties": false
},
"description": {
"type": "string"
}
},
"additionalProperties": false
}get_dataset_info annotations
{
"title": "Dataset info",
"readOnlyHint": true,
"openWorldHint": false,
"idempotentHint": true,
"destructiveHint": false
}get_item_drop_rates — Item drop rates
Advertised read-only
Where to farm an item: ranks every stage of a game server that drops it, with sanity per item, drop rate (items per run), runs (times) and quantity. Use it for any question about where to get an item, its best or most efficient stage, or which of several stages to run for it: one call ranks every stage, so don't look stages up one by one with get_stage_drops (only a named stage left out of the top_n returned). By default the stages open now that still drop it, lowest sanity per item first; stages of fewer than 100 runs (lowSample) rank after the others, gachas and the recruitment (no sanity cost) last. sort_by=drop_rate ranks by rate instead; include_closed=true adds past events and ended drops. item_id takes the item's name in any language; search_items first only when the name may mean several items.
get_item_drop_rates input schema
{
"type": "object",
"required": [
"item_id",
"server"
],
"properties": {
"lang": {
"enum": [
"zh",
"en",
"ja",
"ko"
],
"type": "string",
"description": "Language of the names in the result: the language the user writes in, zh, en, ja or ko (en for other languages, and if omitted)."
},
"top_n": {
"type": "integer",
"default": 10,
"maximum": 100,
"minimum": 1,
"description": "Most stages to return, 1 to 100. Default 10."
},
"server": {
"enum": [
"CN",
"US",
"JP",
"KR"
],
"type": "string",
"description": "Game server the user plays on: CN (mainland China: 国服, 官服, B服), US (global, English: 国际服, 美服), JP (日服) or KR (韩服). Stages, events and drop rates differ by server. Use the server the user named or the conversation makes clear; a user writing Chinese, Japanese or Korean most likely plays CN, JP or KR. If you can't tell, ask the user which server they play on before calling. Name the server in your answer."
},
"item_id": {
"type": "string",
"maxLength": 64,
"minLength": 1,
"description": "Item ID, from search_items: 30012. A name or alias that only one item has works too: 固源岩, Orirock Cube"
},
"sort_by": {
"enum": [
"sanity_per_item",
"drop_rate"
],
"type": "string",
"default": "sanity_per_item",
"description": "sanity_per_item (default): the least sanity per item first. drop_rate: the most items per run first."
},
"include_closed": {
"type": "boolean",
"default": false,
"description": "false (default): only the stages open on the server now that still drop the item. true: also the stages of past events and the drops that ended, for history."
}
},
"additionalProperties": false
}get_item_drop_rates output schema
{
"type": "object",
"required": [
"item",
"server",
"includeClosed",
"sortBy",
"totalStages",
"returned",
"truncated",
"rows",
"definitions",
"source"
],
"properties": {
"item": {
"type": "object",
"required": [
"itemId",
"name",
"type",
"pageUrl"
],
"properties": {
"name": {
"type": "string",
"description": "Name in the language asked for"
},
"type": {
"type": "string"
},
"itemId": {
"type": "string"
},
"pageUrl": {
"type": [
"null",
"string"
],
"description": "Page of the drop rates of the item on the server on Penguin Statistics; null if there is none"
}
},
"additionalProperties": false
},
"note": {
"type": "string"
},
"rows": {
"type": [
"null",
"array"
],
"items": {
"type": "object",
"required": [
"stageId",
"code",
"zoneName",
"apCost",
"times",
"quantity",
"dropRate",
"sanityPerItem",
"start",
"end",
"openNow",
"dropsNow",
"lowSample",
"pageUrl"
],
"properties": {
"end": {
"type": [
"null",
"string"
],
"description": "End of the window, RFC 3339 in UTC; null while it goes on"
},
"code": {
"type": "string",
"description": "Code in the language asked for"
},
"start": {
"type": "string",
"description": "Start of the window, RFC 3339 in UTC"
},
"times": {
"type": "integer"
},
"apCost": {
"type": [
"null",
"integer"
],
"description": "Sanity cost of a run; null without one (gachas, the recruitment)"
},
"openNow": {
"type": "boolean",
"description": "Whether the stage is open on the server now, by the open and close times of the stage and its zone; supply and chip stages (zoneType WEEKLY) count as open every day, as their weekday rotation is not tracked"
},
"pageUrl": {
"type": [
"null",
"string"
],
"description": "Page of the drops of the stage on the server on Penguin Statistics; null if there is none"
},
"stageId": {
"type": "string"
},
"dropRate": {
"type": "number"
},
"dropsNow": {
"type": "boolean",
"description": "Whether the stage is open now and still drops the item (end is null or later than now): the rows of the default result"
},
"quantity": {
"type": "integer"
},
"zoneName": {
"type": "string",
"description": "Name of the zone in the language asked for"
},
"lowSample": {
"type": "boolean",
"description": "Whether the rate is of fewer than 100 runs, and so noisy"
},
"sanityPerItem": {
"type": [
"null",
"number"
]
}
},
"additionalProperties": false
},
"description": "The stages, in the order of sortBy"
},
"server": {
"type": "string"
},
"sortBy": {
"type": "string"
},
"source": {
"type": "object",
"required": [
"name",
"url",
"license",
"licenseUrl",
"attribution"
],
"properties": {
"url": {
"type": "string",
"description": "The page of this data on Penguin Statistics, or its home page"
},
"name": {
"type": "string"
},
"license": {
"type": "string"
},
"licenseUrl": {
"type": "string"
},
"attribution": {
"type": "string",
"description": "The credit to give wherever this data is used"
}
},
"additionalProperties": false
},
"dataAsOf": {
"type": "string",
"description": "When the drop data was calculated, RFC 3339 in UTC"
},
"returned": {
"type": "integer"
},
"truncated": {
"type": "boolean",
"description": "Whether top_n left out stages"
},
"definitions": {
"type": "object",
"required": [
"times",
"quantity",
"dropRate",
"sanityPerItem",
"window"
],
"properties": {
"times": {
"type": "string"
},
"window": {
"type": "string"
},
"dropRate": {
"type": "string"
},
"quantity": {
"type": "string"
},
"sanityPerItem": {
"type": "string"
}
},
"additionalProperties": false
},
"totalStages": {
"type": "integer",
"description": "Stages that drop the item now (dropsNow), or all with includeClosed"
},
"includeClosed": {
"type": "boolean"
}
},
"additionalProperties": false
}get_item_drop_rates annotations
{
"title": "Item drop rates",
"readOnlyHint": true,
"openWorldHint": false,
"idempotentHint": true,
"destructiveHint": false
}get_stage_drops — Stage drops
Advertised read-only
What one stage drops on a game server: each item with drop rate (items per run), sanity per item, runs (times) and quantity, highest rate first, then the items it no longer drops; with the sanity cost of the stage and whether it is open now. For questions about a given stage. To find where to farm an item, call get_item_drop_rates instead: one call ranks every stage that drops it. Takes the stage ID from search_stages (codes are shared by several stages); a code works too if only one stage on the server has it.
get_stage_drops input schema
{
"type": "object",
"required": [
"stage_id",
"server"
],
"properties": {
"lang": {
"enum": [
"zh",
"en",
"ja",
"ko"
],
"type": "string",
"description": "Language of the names in the result: the language the user writes in, zh, en, ja or ko (en for other languages, and if omitted)."
},
"server": {
"enum": [
"CN",
"US",
"JP",
"KR"
],
"type": "string",
"description": "Game server the user plays on: CN (mainland China: 国服, 官服, B服), US (global, English: 国际服, 美服), JP (日服) or KR (韩服). Stages, events and drop rates differ by server. Use the server the user named or the conversation makes clear; a user writing Chinese, Japanese or Korean most likely plays CN, JP or KR. If you can't tell, ask the user which server they play on before calling. Name the server in your answer."
},
"stage_id": {
"type": "string",
"maxLength": 64,
"minLength": 1,
"description": "Stage ID, from search_stages: main_01-07. A code works too if only one stage on the server has it: 1-7"
}
},
"additionalProperties": false
}get_stage_drops output schema
{
"type": "object",
"required": [
"stage",
"server",
"rows",
"truncated",
"definitions",
"source"
],
"properties": {
"note": {
"type": "string"
},
"rows": {
"type": [
"null",
"array"
],
"items": {
"type": "object",
"required": [
"itemId",
"itemName",
"times",
"quantity",
"dropRate",
"sanityPerItem",
"start",
"end"
],
"properties": {
"end": {
"type": [
"null",
"string"
],
"description": "End of the window, RFC 3339 in UTC; null while it goes on"
},
"start": {
"type": "string",
"description": "Start of the window, RFC 3339 in UTC"
},
"times": {
"type": "integer"
},
"itemId": {
"type": "string"
},
"dropRate": {
"type": "number"
},
"itemName": {
"type": "string",
"description": "Name in the language asked for"
},
"quantity": {
"type": "integer"
},
"sanityPerItem": {
"type": [
"null",
"number"
]
}
},
"additionalProperties": false
},
"description": "The items the stage drops, highest rate first; then those of windows that ended (end not null), which it no longer drops, such as the bonus drops of past events"
},
"stage": {
"type": "object",
"required": [
"stageId",
"code",
"zoneId",
"zoneName",
"zoneType",
"apCost",
"openNow",
"existsOn",
"pageUrl"
],
"properties": {
"code": {
"type": "string",
"description": "Code in the language asked for"
},
"apCost": {
"type": [
"null",
"integer"
],
"description": "Sanity cost of a run; null without one (gachas, the recruitment)"
},
"zoneId": {
"type": "string"
},
"openNow": {
"type": "boolean",
"description": "Whether the stage is open on the server now, by the open and close times of the stage and its zone; supply and chip stages (zoneType WEEKLY) count as open every day, as their weekday rotation is not tracked"
},
"pageUrl": {
"type": [
"null",
"string"
],
"description": "Page of the drops of the stage on Penguin Statistics, on the server or else the first server it exists on; null if there is none"
},
"stageId": {
"type": "string"
},
"existsOn": {
"type": [
"null",
"array"
],
"items": {
"type": "string"
},
"description": "Game servers the stage exists on"
},
"zoneName": {
"type": "string",
"description": "Name of the zone in the language asked for"
},
"zoneType": {
"type": "string",
"description": "MAINLINE (the main story), ACTIVITY (an event), ACTIVITY_PERMANENT (a side story or intermezzo, open for good), WEEKLY (supplies and chips), GACHABOX or RECRUIT"
}
},
"additionalProperties": false
},
"server": {
"type": "string"
},
"source": {
"type": "object",
"required": [
"name",
"url",
"license",
"licenseUrl",
"attribution"
],
"properties": {
"url": {
"type": "string",
"description": "The page of this data on Penguin Statistics, or its home page"
},
"name": {
"type": "string"
},
"license": {
"type": "string"
},
"licenseUrl": {
"type": "string"
},
"attribution": {
"type": "string",
"description": "The credit to give wherever this data is used"
}
},
"additionalProperties": false
},
"dataAsOf": {
"type": "string",
"description": "When the drop data was calculated, RFC 3339 in UTC"
},
"truncated": {
"type": "boolean",
"description": "Whether items were left out, past 100"
},
"definitions": {
"type": "object",
"required": [
"times",
"quantity",
"dropRate",
"sanityPerItem",
"window"
],
"properties": {
"times": {
"type": "string"
},
"window": {
"type": "string"
},
"dropRate": {
"type": "string"
},
"quantity": {
"type": "string"
},
"sanityPerItem": {
"type": "string"
}
},
"additionalProperties": false
}
},
"additionalProperties": false
}get_stage_drops annotations
{
"title": "Stage drops",
"readOnlyHint": true,
"openWorldHint": false,
"idempotentHint": true,
"destructiveHint": false
}list_events — List events
Advertised read-only
Lists the events (limited-time activities) of a game server: status now (open, upcoming or closed), open and close times, whether a rerun. By default the open and upcoming events with their stage IDs (for get_stage_drops), or the latest 3 if there are none; open_only=false lists every event, latest first, with stage counts only. The main story and the permanent side stories are not events.
list_events input schema
{
"type": "object",
"required": [
"server"
],
"properties": {
"lang": {
"enum": [
"zh",
"en",
"ja",
"ko"
],
"type": "string",
"description": "Language of the names in the result: the language the user writes in, zh, en, ja or ko (en for other languages, and if omitted)."
},
"limit": {
"type": "integer",
"default": 20,
"maximum": 50,
"minimum": 1,
"description": "Most events to return, 1 to 50. Default 20."
},
"server": {
"enum": [
"CN",
"US",
"JP",
"KR"
],
"type": "string",
"description": "Game server the user plays on: CN (mainland China: 国服, 官服, B服), US (global, English: 国际服, 美服), JP (日服) or KR (韩服). Stages, events and drop rates differ by server. Use the server the user named or the conversation makes clear; a user writing Chinese, Japanese or Korean most likely plays CN, JP or KR. If you can't tell, ask the user which server they play on before calling. Name the server in your answer."
},
"open_only": {
"type": "boolean",
"default": true,
"description": "true (default): the events open or upcoming on the server, with their stages; if there are none, the latest 3. false: every event of the server, latest first, without their stages."
}
},
"additionalProperties": false
}list_events output schema
{
"type": "object",
"required": [
"server",
"now",
"openOnly",
"truncated",
"events",
"source"
],
"properties": {
"now": {
"type": "string",
"description": "The time of the statuses, RFC 3339 in UTC"
},
"note": {
"type": "string"
},
"events": {
"type": [
"null",
"array"
],
"items": {
"type": "object",
"required": [
"zoneId",
"name",
"status",
"openTime",
"closeTime",
"isRerun",
"stageCount"
],
"properties": {
"name": {
"type": "string"
},
"stages": {
"type": [
"null",
"array"
],
"items": {
"type": "object",
"required": [
"stageId",
"code"
],
"properties": {
"code": {
"type": "string"
},
"stageId": {
"type": "string"
}
},
"additionalProperties": false
},
"description": "The stages of the event, with open_only only"
},
"status": {
"type": "string",
"description": "open, upcoming or closed on the server at now"
},
"zoneId": {
"type": "string"
},
"isRerun": {
"type": "boolean",
"description": "Whether the event is the rerun (复刻) of an earlier one"
},
"openTime": {
"type": [
"null",
"string"
],
"description": "When the event opens on the server, RFC 3339 in UTC"
},
"closeTime": {
"type": [
"null",
"string"
],
"description": "When the event closes on the server, RFC 3339 in UTC"
},
"stageCount": {
"type": "integer"
}
},
"additionalProperties": false
}
},
"server": {
"type": "string"
},
"source": {
"type": "object",
"required": [
"name",
"url",
"license",
"licenseUrl",
"attribution"
],
"properties": {
"url": {
"type": "string",
"description": "The page of this data on Penguin Statistics, or its home page"
},
"name": {
"type": "string"
},
"license": {
"type": "string"
},
"licenseUrl": {
"type": "string"
},
"attribution": {
"type": "string",
"description": "The credit to give wherever this data is used"
}
},
"additionalProperties": false
},
"openOnly": {
"type": "boolean"
},
"truncated": {
"type": "boolean",
"description": "Whether limit left out older events"
}
},
"additionalProperties": false
}list_events annotations
{
"title": "List events",
"readOnlyHint": true,
"openWorldHint": false,
"idempotentHint": true,
"destructiveHint": false
}search_items — Search items
Advertised read-only
Finds items (materials, battle records, chips, furniture, event items) by name in any language (zh, en, ja, ko), by alias or nickname (土块, 狗粮), by pinyin (guyuanyan) or by item ID, and returns their item IDs (get_item_drop_rates takes a name too; search first when unsure which item is meant) and names in every language. Best matches first: exact before prefix before substring, names before aliases. Several items can share an alias (石头 is each tier of Orirock): ambiguous is then true; ask the user which one is meant or decide by context. Items of other types (workshop-crafted materials such as D32 Steel, recruitment tags) are returned only when no listed item matches, with a note saying what they are.
search_items input schema
{
"type": "object",
"required": [
"query"
],
"properties": {
"lang": {
"enum": [
"zh",
"en",
"ja",
"ko"
],
"type": "string",
"description": "Language of the names in the result: the language the user writes in, zh, en, ja or ko (en for other languages, and if omitted)."
},
"limit": {
"type": "integer",
"default": 10,
"maximum": 25,
"minimum": 1,
"description": "Most items to return, 1 to 25. Default 10."
},
"query": {
"type": "string",
"maxLength": 64,
"minLength": 1,
"description": "Name, alias, pinyin or ID of the item, in any language: 固源岩, Orirock Cube, 石头, guyuanyan or 30012"
}
},
"additionalProperties": false
}search_items output schema
{
"type": "object",
"required": [
"query",
"results",
"ambiguous",
"truncated",
"source"
],
"properties": {
"note": {
"type": "string",
"description": "Set when no item of a listed type matched and the results are items of other types: what those are"
},
"query": {
"type": "string"
},
"source": {
"type": "object",
"required": [
"name",
"url",
"license",
"licenseUrl",
"attribution"
],
"properties": {
"url": {
"type": "string",
"description": "The page of this data on Penguin Statistics, or its home page"
},
"name": {
"type": "string"
},
"license": {
"type": "string"
},
"licenseUrl": {
"type": "string"
},
"attribution": {
"type": "string",
"description": "The credit to give wherever this data is used"
}
},
"additionalProperties": false
},
"results": {
"type": [
"null",
"array"
],
"items": {
"type": "object",
"required": [
"itemId",
"name",
"names",
"type",
"rarity",
"matchedBy",
"matchType",
"matchedText",
"existsOn",
"pageUrl"
],
"properties": {
"name": {
"type": "string",
"description": "Name in the language asked for"
},
"type": {
"type": "string",
"description": "MATERIAL, CARD_EXP (battle records), CHIP, FURN (furniture) or ACTIVITY_ITEM (event items); with a note, another type: ARKPLANNER (crafted in the workshop), RECRUIT_TAG (a recruitment tag), TEMP or LGG_SHD"
},
"names": {
"type": "object",
"required": [
"zh",
"en",
"ja",
"ko"
],
"properties": {
"en": {
"type": "string"
},
"ja": {
"type": "string"
},
"ko": {
"type": "string"
},
"zh": {
"type": "string"
}
},
"additionalProperties": false
},
"itemId": {
"type": "string"
},
"rarity": {
"type": "integer",
"description": "Rarity as stored, 0 to 4: the tier of the item in the game minus 1"
},
"pageUrl": {
"type": [
"null",
"string"
],
"description": "Page of the drop rates of the item on Penguin Statistics, on CN or else the first server it exists on; null if it exists on none; null for an item of another type"
},
"existsOn": {
"type": [
"null",
"array"
],
"items": {
"type": "string"
},
"description": "Game servers the item exists on"
},
"matchType": {
"type": "string",
"description": "How matchedText matched the query: exact, prefix or substring"
},
"matchedBy": {
"type": "string",
"description": "What matched the query: id, name (in any language), alias (a nickname in zh or ja), pinyin (a reading in zh) or romaji (a reading in ja)"
},
"matchedText": {
"type": "string"
}
},
"additionalProperties": false
},
"description": "The items found, best match first"
},
"ambiguous": {
"type": "boolean",
"description": "Whether several items match as well as the first (an alias of several items, such as 石头 for the four tiers of Orirock): ask which one is meant, or pick by context, rather than take the first"
},
"truncated": {
"type": "boolean",
"description": "Whether more items match than the limit"
}
},
"additionalProperties": false
}search_items annotations
{
"title": "Search items",
"readOnlyHint": true,
"openWorldHint": false,
"idempotentHint": true,
"destructiveHint": false
}search_stages — Search stages
Advertised read-only
Finds stages by code (1-7, S2-12, YW-4; full-width characters work too), by stage ID (main_01-07), or by the name or ID of their zone (第十章, Under Tides), and returns their stage IDs (for get_stage_drops; to find the stages that drop an item, use get_item_drop_rates) with their zone, sanity cost and whether they are open on the server now. Codes are not unique: the standard and tough versions of a stage of the main story share them, as do an event, its rerun and the stages it left open for good. Best matches first (the code before the zone, exact before prefix before substring), then the stages open now, standard before tough, original before permanent before rerun. ambiguous is true when several stages share the best-matching code (not for the stages of a zone found by its name): ask the user which one is meant or decide by context.
search_stages input schema
{
"type": "object",
"required": [
"query"
],
"properties": {
"lang": {
"enum": [
"zh",
"en",
"ja",
"ko"
],
"type": "string",
"description": "Language of the names in the result: the language the user writes in, zh, en, ja or ko (en for other languages, and if omitted)."
},
"limit": {
"type": "integer",
"default": 10,
"maximum": 25,
"minimum": 1,
"description": "Most stages to return, 1 to 25. Default 10."
},
"query": {
"type": "string",
"maxLength": 64,
"minLength": 1,
"description": "Code or ID of the stage, or the name or ID of its zone, in any language: 1-7, S2-12, main_01-07, 第十章 or Under Tides"
},
"server": {
"enum": [
"CN",
"US",
"JP",
"KR"
],
"type": "string",
"default": "CN",
"description": "Game server the user plays on: CN (China), US (global, English), JP (Japan) or KR (Korea). Default CN. The stages open there now rank first."
}
},
"additionalProperties": false
}search_stages output schema
{
"type": "object",
"required": [
"query",
"server",
"results",
"ambiguous",
"truncated",
"source"
],
"properties": {
"query": {
"type": "string"
},
"server": {
"type": "string",
"description": "Game server of openNow"
},
"source": {
"type": "object",
"required": [
"name",
"url",
"license",
"licenseUrl",
"attribution"
],
"properties": {
"url": {
"type": "string",
"description": "The page of this data on Penguin Statistics, or its home page"
},
"name": {
"type": "string"
},
"license": {
"type": "string"
},
"licenseUrl": {
"type": "string"
},
"attribution": {
"type": "string",
"description": "The credit to give wherever this data is used"
}
},
"additionalProperties": false
},
"results": {
"type": [
"null",
"array"
],
"items": {
"type": "object",
"required": [
"stageId",
"code",
"zoneId",
"zoneName",
"zoneType",
"apCost",
"openNow",
"existsOn",
"pageUrl",
"difficulty",
"variant",
"matchedBy",
"matchType",
"matchedText"
],
"properties": {
"code": {
"type": "string",
"description": "Code in the language asked for"
},
"apCost": {
"type": [
"null",
"integer"
],
"description": "Sanity cost of a run; null without one (gachas, the recruitment)"
},
"zoneId": {
"type": "string"
},
"openNow": {
"type": "boolean",
"description": "Whether the stage is open on the server now, by the open and close times of the stage and its zone; supply and chip stages (zoneType WEEKLY) count as open every day, as their weekday rotation is not tracked"
},
"pageUrl": {
"type": [
"null",
"string"
],
"description": "Page of the drops of the stage on Penguin Statistics, on the server or else the first server it exists on; null if there is none"
},
"stageId": {
"type": "string"
},
"variant": {
"type": "string",
"description": "original, rerun (the stage of the rerun of an event) or permanent (the stage an event left open for good)"
},
"existsOn": {
"type": [
"null",
"array"
],
"items": {
"type": "string"
},
"description": "Game servers the stage exists on"
},
"zoneName": {
"type": "string",
"description": "Name of the zone in the language asked for"
},
"zoneType": {
"type": "string",
"description": "MAINLINE (the main story), ACTIVITY (an event), ACTIVITY_PERMANENT (a side story or intermezzo, open for good), WEEKLY (supplies and chips), GACHABOX or RECRUIT"
},
"matchType": {
"type": "string",
"description": "How matchedText matched the query: exact, prefix or substring"
},
"matchedBy": {
"type": "string",
"description": "What matched the query: id (of the stage), code (in any language) or zone (its name in any language, or its ID)"
},
"difficulty": {
"type": "string",
"description": "normal, or tough: the tough version of a stage of the main story, with the same code"
},
"matchedText": {
"type": "string"
}
},
"additionalProperties": false
},
"description": "The stages found, best match first"
},
"ambiguous": {
"type": "boolean",
"description": "Whether several stages share the code (or ID) that matched best: the standard and tough versions of a stage, or an event, its rerun and the stage it left open; ask which one is meant, or pick by context, rather than take the first. False when the query matched a zone: its stages are listed."
},
"truncated": {
"type": "boolean",
"description": "Whether more stages match than the limit"
}
},
"additionalProperties": false
}search_stages annotations
{
"title": "Search stages",
"readOnlyHint": true,
"openWorldHint": false,
"idempotentHint": true,
"destructiveHint": false
}Prompts
Not advertised
Resources
Not advertised
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
- 1664 ms
- 95th percentile latency
- 1664 ms
Maintenance history
Public check and source-refresh events. Editorial and ownership records remain private.
- · probe · passed · 1664 ms · metadata changed · 6 tool(s)
Connect from your client
Each snippet registers the same endpoint; pick the client you use.
Claude Code
Claude Code configuration
claude mcp add --transport http penguin-statistics-mcp https://mcp.penguin-stats.io/mcpCodex
Codex configuration
codex mcp add penguin-statistics-mcp --url https://mcp.penguin-stats.io/mcpCursor
Cursor configuration
{
"mcpServers": {
"penguin-statistics-mcp": {
"url": "https://mcp.penguin-stats.io/mcp"
}
}
}Cline
Cline configuration
{
"mcpServers": {
"penguin-statistics-mcp": {
"type": "streamableHttp",
"url": "https://mcp.penguin-stats.io/mcp",
"disabled": false
}
}
}VS Code
VS Code configuration
{
"servers": {
"penguin-statistics-mcp": {
"type": "http",
"url": "https://mcp.penguin-stats.io/mcp"
}
}
}Gemini CLI
Gemini CLI configuration
gemini mcp add --transport http penguin-statistics-mcp https://mcp.penguin-stats.io/mcpClaude Desktop
Claude Desktop configuration
{
"mcpServers": {
"penguin-statistics-mcp": {
"url": "https://mcp.penguin-stats.io/mcp"
}
}
}Windsurf
Windsurf configuration
{
"mcpServers": {
"penguin-statistics-mcp": {
"serverUrl": "https://mcp.penguin-stats.io/mcp"
}
}
}Let your agent find its tools
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