rankcusp

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App Store keyword ranks, the 11-30 cusp band, metadata audits and rival positions.

Marketing & SEO

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https://rankcusp.com/api/mcp

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Bearer auth with a rankcusp service key - create one free at https://rankcusp.com

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.

add_keywords

Adds keywords to an app's tracked set in one storefront. Takes a list or a comma-separated paste. They arrive unscored - scoring costs requests to Apple and happens on the collector's schedule - so do not read a null popularity here as a zero.

appIdstring, required

App Store app id

countrystring, required

Storefront code, e.g. us, tr, de

keywordsarray, required

The phrases to track.

This tool isn't marked read-only, so it may change something on the server or in an account you connected.

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Tools (9)

add_keywords

Argument	Type	Description
appId*	string	App Store app id
country*	string	Storefront code, e.g. us, tr, de
keywords*	array	The phrases to track.

Input schema (JSON)

{
  "type": "object",
  "required": [
    "appId",
    "country",
    "keywords"
  ],
  "properties": {
    "appId": {
      "type": "string",
      "description": "App Store app id"
    },
    "country": {
      "type": "string",
      "description": "Storefront code, e.g. us, tr, de"
    },
    "keywords": {
      "type": "array",
      "items": {
        "type": "string"
      },
      "description": "The phrases to track."
    }
  },
  "additionalProperties": false
}

audit_metadata

Audits a draft title, subtitle and 100-character keyword field against Apple's rules and against each other. Returns what is wasted, what Apple will actually index, and the field rewritten without the waste. Nothing is submitted anywhere - this only reads the text you pass in.

read-only

Argument	Type	Description
title	string	Up to 30 characters.
country*	string	Storefront code, e.g. us, tr, de
subtitle	string	Up to 30 characters.
keywordField	string	The 100-character field, comma-separated, as App Store Connect wants it.

Input schema (JSON)

{
  "type": "object",
  "required": [
    "country"
  ],
  "properties": {
    "title": {
      "type": "string",
      "description": "Up to 30 characters."
    },
    "country": {
      "type": "string",
      "description": "Storefront code, e.g. us, tr, de"
    },
    "subtitle": {
      "type": "string",
      "description": "Up to 30 characters."
    },
    "keywordField": {
      "type": "string",
      "description": "The 100-character field, comma-separated, as App Store Connect wants it."
    }
  },
  "additionalProperties": false
}

country_priorities

Ranks the storefronts an app is tracked in by how much is winnable there: how many keywords sit in the cusp band, how many already reach the top ten, and whether the rivals' ratings leave an opening. Answers which market to work on first.

read-only

Argument	Type	Description
appId*	string	App Store app id

Input schema (JSON)

{
  "type": "object",
  "required": [
    "appId"
  ],
  "properties": {
    "appId": {
      "type": "string",
      "description": "App Store app id"
    }
  },
  "additionalProperties": false
}

cusp_actions

The keywords in the 11-30 band, ordered by popularity. The work list a metadata edit pays off on most.

read-only

Argument	Type	Description
appId*	string	App Store app id
limit	number
country*	string	Storefront code, e.g. us, tr, de

Input schema (JSON)

{
  "type": "object",
  "required": [
    "appId",
    "country"
  ],
  "properties": {
    "appId": {
      "type": "string",
      "description": "App Store app id"
    },
    "limit": {
      "type": "number"
    },
    "country": {
      "type": "string",
      "description": "Storefront code, e.g. us, tr, de"
    }
  },
  "additionalProperties": false
}

get_keyword

One keyword: its rank, its scores, its first page and the verdict - should it be targeted, and why. Every unmeasured value comes back null, never zero.

read-only

Argument	Type	Description
appId*	string	App Store app id
country*	string	Storefront code, e.g. us, tr, de
keyword*	string	The phrase to look up.

Input schema (JSON)

{
  "type": "object",
  "required": [
    "appId",
    "country",
    "keyword"
  ],
  "properties": {
    "appId": {
      "type": "string",
      "description": "App Store app id"
    },
    "country": {
      "type": "string",
      "description": "Storefront code, e.g. us, tr, de"
    },
    "keyword": {
      "type": "string",
      "description": "The phrase to look up."
    }
  },
  "additionalProperties": false
}

keyword_competitors

Who ranks for a phrase, deeper than the ten the first page carries. Use it to find the rivals a first-page reading misses - an app at 40 for a phrase you sit at 60 for is the one to study.

read-only

Argument	Type	Description
limit	number
country*	string	Storefront code, e.g. us, tr, de
keyword*	string	The phrase to look up.

Input schema (JSON)

{
  "type": "object",
  "required": [
    "keyword",
    "country"
  ],
  "properties": {
    "limit": {
      "type": "number"
    },
    "country": {
      "type": "string",
      "description": "Storefront code, e.g. us, tr, de"
    },
    "keyword": {
      "type": "string",
      "description": "The phrase to look up."
    }
  },
  "additionalProperties": false
}

list_apps

Lists the apps and rivals tracked on the account. The appId and storefront codes the other tools want come from here.

read-only

No arguments.

Input schema (JSON)

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

list_keywords

Lists an app's keywords in one storefront, with rank, popularity and difficulty.

read-only

Argument	Type	Description
appId*	string	App Store app id
limit	number	How many rows, at most 200.
offset	number
country*	string	Storefront code, e.g. us, tr, de
cuspOnly	boolean	The 11-30 band only: the ones that reach the first page with the least effort.
rankedOnly	boolean	Only the ones ranking in the top 200.

Input schema (JSON)

{
  "type": "object",
  "required": [
    "appId",
    "country"
  ],
  "properties": {
    "appId": {
      "type": "string",
      "description": "App Store app id"
    },
    "limit": {
      "type": "number",
      "description": "How many rows, at most 200."
    },
    "offset": {
      "type": "number"
    },
    "country": {
      "type": "string",
      "description": "Storefront code, e.g. us, tr, de"
    },
    "cuspOnly": {
      "type": "boolean",
      "description": "The 11-30 band only: the ones that reach the first page with the least effort."
    },
    "rankedOnly": {
      "type": "boolean",
      "description": "Only the ones ranking in the top 200."
    }
  },
  "additionalProperties": false
}

ranking_keywords

Which keywords an app is already ranking for, from the pooled record of every search this product has run. Works on any App Store id, not only the ones on this account - point it at a rival to read theirs. Apple publishes no endpoint for this; the answer is only as wide as what has been observed, so an app nobody has swept near returns little.

read-only

Argument	Type	Description
appId*	string	App Store app id
limit	number	How many rows, at most 200.
country	string	Storefront code, e.g. us, tr, de
maxRank	number	Only positions at or above this, e.g. 30 for the reachable band.

Input schema (JSON)

{
  "type": "object",
  "required": [
    "appId"
  ],
  "properties": {
    "appId": {
      "type": "string",
      "description": "App Store app id"
    },
    "limit": {
      "type": "number",
      "description": "How many rows, at most 200."
    },
    "country": {
      "type": "string",
      "description": "Storefront code, e.g. us, tr, de"
    },
    "maxRank": {
      "type": "number",
      "description": "Only positions at or above this, e.g. 30 for the reachable band."
    }
  },
  "additionalProperties": false
}