Marketcaper MCP

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Cited market comparisons and heatmap images for AI agents.

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compare_assets Read-only

Compare two Marketcaper assets and return relative size or a supported hypothetical price-at-size scenario, the canonical pair URL, and an optional hosted image URL. Hosted images are PNG, generated on demand, share a 10 images/day/IP limit, and may require a longer timeout than the MCP JSON call. Check the input observation times and always cite the returned source_url when using the data.

asset_astring, required

Canonical slug, ticker/code, or supported alias for asset A.

asset_bstring, required

Canonical slug, ticker/code, or supported alias for asset B.

include_imageboolean

When true, include a hosted Marketcaper export image URL for the pair. Hosted images are generated on demand as PNG, share a 10 images/day/IP limit, and clients should allow up to 20 seconds for the image fetch.

response_formatstring

Optional output format. Use "json" when a client needs machine-parseable text blocks, especially for Claude artifacts.

Tools (4)

compare_assets

read-only

Argument	Type	Description
asset_a*	string	Canonical slug, ticker/code, or supported alias for asset A.
asset_b*	string	Canonical slug, ticker/code, or supported alias for asset B.
include_image	boolean	When true, include a hosted Marketcaper export image URL for the pair. Hosted images are generated on demand as PNG, share a 10 images/day/IP limit, and clients should allow up to 20 seconds for the image fetch.
response_format	string	Optional output format. Use "json" when a client needs machine-parseable text blocks, especially for Claude artifacts.

Input schema (JSON)

{
  "type": "object",
  "$schema": "http://json-schema.org/draft-07/schema#",
  "required": [
    "asset_a",
    "asset_b"
  ],
  "properties": {
    "asset_a": {
      "type": "string",
      "minLength": 1,
      "description": "Canonical slug, ticker/code, or supported alias for asset A."
    },
    "asset_b": {
      "type": "string",
      "minLength": 1,
      "description": "Canonical slug, ticker/code, or supported alias for asset B."
    },
    "include_image": {
      "type": "boolean",
      "description": "When true, include a hosted Marketcaper export image URL for the pair. Hosted images are generated on demand as PNG, share a 10 images/day/IP limit, and clients should allow up to 20 seconds for the image fetch."
    },
    "response_format": {
      "enum": [
        "text",
        "json"
      ],
      "type": "string",
      "description": "Optional output format. Use \"json\" when a client needs machine-parseable text blocks, especially for Claude artifacts."
    }
  }
}

compare_assets_pack

Compare two Marketcaper assets and return the same cited comparison data plus a draft short post for review and share payload with the hosted comparison image URL. Always cite the returned source_url when using the data.

read-only

Argument	Type	Description
asset_a*	string	Canonical slug, ticker/code, or supported alias for asset A.
asset_b*	string	Canonical slug, ticker/code, or supported alias for asset B.
response_format	string	Optional output format. Use "json" when a client needs machine-parseable text blocks, especially for Claude artifacts.

Input schema (JSON)

{
  "type": "object",
  "$schema": "http://json-schema.org/draft-07/schema#",
  "required": [
    "asset_a",
    "asset_b"
  ],
  "properties": {
    "asset_a": {
      "type": "string",
      "minLength": 1,
      "description": "Canonical slug, ticker/code, or supported alias for asset A."
    },
    "asset_b": {
      "type": "string",
      "minLength": 1,
      "description": "Canonical slug, ticker/code, or supported alias for asset B."
    },
    "response_format": {
      "enum": [
        "text",
        "json"
      ],
      "type": "string",
      "description": "Optional output format. Use \"json\" when a client needs machine-parseable text blocks, especially for Claude artifacts."
    }
  }
}

get_asset_snapshot

Resolve one Marketcaper asset and return its reported size snapshot. Check the input observation time and always cite the returned source_url when using the data.

read-only

Argument	Type	Description
asset*	string	Canonical slug, ticker/code, or supported alias for one asset.
response_format	string	Optional output format. Use "json" when a client needs machine-parseable text blocks, especially for Claude artifacts.

Input schema (JSON)

{
  "type": "object",
  "$schema": "http://json-schema.org/draft-07/schema#",
  "required": [
    "asset"
  ],
  "properties": {
    "asset": {
      "type": "string",
      "minLength": 1,
      "description": "Canonical slug, ticker/code, or supported alias for one asset."
    },
    "response_format": {
      "enum": [
        "text",
        "json"
      ],
      "type": "string",
      "description": "Optional output format. Use \"json\" when a client needs machine-parseable text blocks, especially for Claude artifacts."
    }
  }
}

get_stock_heatmap

Return a Marketcaper stock heatmap summary with reported observation and update times, plus a hosted dark-theme PNG image URL. Supports US or global universes, classic or bubble views, optional sector/category filtering, and capped summary rows. Hosted images share a 10 images/day/IP limit. This is not a bulk feed extraction tool.

read-only

Argument	Type	Description
view*	string	Required heatmap image view. Use "classic" for the sector tile map or "bubble" for the bubble stock heatmap.
metric	string	Optional heatmap sizing metric: "marketCap", "volume", or "turnover". Defaults to "marketCap".
category	string	Optional sector/category name or slug, such as "Financial Services" or "communication-services". When supplied, the image includes only that category.
universe	string	Optional stock universe. Use "us" for US top stocks or "global" for global top stocks. Defaults to "us".
timeframe	string	Optional performance timeframe: "1H", "4H", "1D", "1W", "1M", or "1Y". Defaults to "1D".
response_format	string	Optional output format. Use "json" when a client needs machine-parseable text blocks, especially for Claude artifacts.

Input schema (JSON)