ArcadeIndex

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io.arcadeindex/catalogv1.6.0 Domain verified

Find free browser games re-checked playable within 8 days, by genre, mood, age rating and players.

Entertainment & Games

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https://arcadeindex.io/mcp/catalog

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

games_like Read-only

Games similar to an anchor game, ordered by similarity, each with similarity_reasons. Returns only published, playable games verified within the last 8 days (listing-only games with include_listing_only=true; plays=here or plays=developer_site picks one kind). content_rating_max defaults to teen. Zero results is a success with code NO_MATCHES and up to 3 executed relaxations whose args you can call again (with the tool named in tool, when set). Quote match_reasons and link play_url; render 'via ArcadeIndex' per the attribution block.

game_idstring, required

A 6-char game id or the {slug}-{id} path segment. Aliased ids resolve to the canonical game.

moodarray

genrestring

limitinteger

playsstring

here: only games that play embedded (on ArcadeIndex and in the in-chat player); developer_site: only games that play on the developer's own site (implies include_listing_only).

inputsarray

playersstring

difficultyarray

min_qualityinteger

exclude_genresarray

content_rating_maxstring

session_length_maxinteger

include_listing_onlyboolean

Try it

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

https://arcadeindex.io/mcp/catalog

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.

games_like Read-only

game_idstring, required

A 6-char game id or the {slug}-{id} path segment. Aliased ids resolve to the canonical game.

moodarray

genrestring

limitinteger

playsstring

here: only games that play embedded (on ArcadeIndex and in the in-chat player); developer_site: only games that play on the developer's own site (implies include_listing_only).

inputsarray

playersstring

difficultyarray

min_qualityinteger

exclude_genresarray

content_rating_maxstring

session_length_maxinteger

include_listing_onlyboolean

Tools (7)

games_like

read-only

Argument	Type	Description
mood	array
genre	string
limit	integer
plays	string	here: only games that play embedded (on ArcadeIndex and in the in-chat player); developer_site: only games that play on the developer's own site (implies include_listing_only).
inputs	array
game_id*	string	A 6-char game id or the {slug}-{id} path segment. Aliased ids resolve to the canonical game.
players	string
difficulty	array
min_quality	integer
exclude_genres	array
content_rating_max	string
session_length_max	integer
include_listing_only	boolean

Input schema (JSON)

{
  "type": "object",
  "required": [
    "game_id"
  ],
  "properties": {
    "mood": {
      "type": "array",
      "items": {
        "enum": [
          "cozy",
          "chill",
          "zen",
          "chaotic",
          "spooky",
          "competitive",
          "silly",
          "intense",
          "cute",
          "brainy",
          "satisfying",
          "atmospheric"
        ],
        "type": "string"
      },
      "default": [],
      "maxItems": 3
    },
    "genre": {
      "enum": [
        "action",
        "adventure",
        "arcade",
        "board-card",
        "clicker-idle",
        "driving-racing",
        "educational",
        "fighting",
        "horror",
        "io-games",
        "music-rhythm",
        "party-multiplayer",
        "physics",
        "platformer",
        "puzzle",
        "rpg",
        "shooter",
        "simulation",
        "sports",
        "strategy",
        "survival",
        "tower-defense",
        "tycoon-management",
        "word-trivia"
      ],
      "type": "string"
    },
    "limit": {
      "type": "integer",
      "default": 8,
      "maximum": 24,
      "minimum": 1
    },
    "plays": {
      "enum": [
        "here",
        "developer_site"
      ],
      "type": "string",
      "description": "here: only games that play embedded (on ArcadeIndex and in the in-chat player); developer_site: only games that play on the developer's own site (implies include_listing_only)."
    },
    "inputs": {
      "type": "array",
      "items": {
        "enum": [
          "mouse",
          "keyboard",
          "touch",
          "gamepad"
        ],
        "type": "string"
      },
      "maxItems": 4
    },
    "game_id": {
      "type": "string",
      "maxLength": 200,
      "minLength": 1,
      "description": "A 6-char game id or the {slug}-{id} path segment. Aliased ids resolve to the canonical game."
    },
    "players": {
      "enum": [
        "1",
        "2",
        "multi"
      ],
      "type": "string"
    },
    "difficulty": {
      "type": "array",
      "items": {
        "enum": [
          "easy",
          "medium",
          "hard",
          "brutal"
        ],
        "type": "string"
      },
      "maxItems": 4
    },
    "min_quality": {
      "type": "integer",
      "default": 50,
      "maximum": 100,
      "minimum": 0
    },
    "exclude_genres": {
      "type": "array",
      "items": {
        "enum": [
          "action",
          "adventure",
          "arcade",
          "board-card",
          "clicker-idle",
          "driving-racing",
          "educational",
          "fighting",
          "horror",
          "io-games",
          "music-rhythm",
          "party-multiplayer",
          "physics",
          "platformer",
          "puzzle",
          "rpg",
          "shooter",
          "simulation",
          "sports",
          "strategy",
          "survival",
          "tower-defense",
          "tycoon-management",
          "word-trivia"
        ],
        "type": "string"
      },
      "default": [],
      "maxItems": 5
    },
    "content_rating_max": {
      "enum": [
        "everyone",
        "everyone_10",
        "teen",
        "mature"
      ],
      "type": "string",
      "default": "teen"
    },
    "session_length_max": {
      "type": "integer",
      "maximum": 240,
      "minimum": 1
    },
    "include_listing_only": {
      "type": "boolean",
      "default": false
    }
  },
  "additionalProperties": false
}

get_game

Full details of one game by id or {slug}-{id}. Aliased ids resolve to the canonical game (requested_id is set). Also returns listing-only, stale or suspect games: do NOT present play_url as instantly playable unless play_ready is true. Errors: NOT_FOUND (unknown, unavailable or not public), GONE (delisted).

read-only

Argument	Type	Description
game_id*	string	A 6-char game id or the {slug}-{id} path segment. Aliased ids resolve to the canonical game.

Input schema (JSON)

{
  "type": "object",
  "required": [
    "game_id"
  ],
  "properties": {
    "game_id": {
      "type": "string",
      "maxLength": 200,
      "minLength": 1,
      "description": "A 6-char game id or the {slug}-{id} path segment. Aliased ids resolve to the canonical game."
    }
  },
  "additionalProperties": false
}

new_games

Games published in the last 30 days, newest first. Returns only published, playable games verified within the last 8 days (listing-only games with include_listing_only=true; plays=here or plays=developer_site picks one kind). content_rating_max defaults to teen. Zero results is a success with code NO_MATCHES and up to 3 executed relaxations whose args you can call again (with the tool named in tool, when set). Quote match_reasons and link play_url; render 'via ArcadeIndex' per the attribution block.

read-only

Argument	Type	Description
mood	array
genre	string
limit	integer
plays	string	here: only games that play embedded (on ArcadeIndex and in the in-chat player); developer_site: only games that play on the developer's own site (implies include_listing_only).
inputs	array
players	string
difficulty	array
min_quality	integer
exclude_genres

play_game

Play an ArcadeIndex game right inside the chat. Pass game_id (an id, {slug}-{id}, or a game's url from search_games, trending, games_like or new_games results) or query (the top search hit is played; a game that only plays on its developer's site comes back as link_out). Hosts that support MCP Apps show a player with Next game and More like this (mode player); some chat apps do not allow the game frame yet, and then the player offers the game on arcadeindex.io in a new tab, so do not tell the user the game is running in the chat unless they say so. Games that cannot be framed here (listing-only, not checked in the last 8 days, Mature, or a site the chat app does not allow) return mode link_out with link_out.url and the reason: give the user that link. Hosts without MCP Apps get the same data as text: link play_url. Errors: NOT_FOUND, INVALID_ARGUMENT.

read-only

Argument	Type	Description
query	string	Instead of game_id: a title or request; the top search_games hit is played.
game_id	string	A 6-char game id, the {slug}-{id} segment, or the game's ArcadeIndex page URL (from search results).

Input schema (JSON)

{
  "type": "object",
  "properties": {
    "query": {
      "type": "string",
      "maxLength": 200,
      "minLength": 1,
      "description": "Instead of game_id: a title or request; the top search_games hit is played."
    },
    "game_id": {
      "type": "string",
      "maxLength": 300,
      "minLength": 1,
      "description": "A 6-char game id, the {slug}-{id} segment, or the game's ArcadeIndex page URL (from search results)."
    }
  },
  "additionalProperties": false
}

random_game

One random eligible game for 'surprise me' flows; pass seed for a deterministic pick. Never returns Mature games. Zero eligible games gives game: null with code NO_MATCHES and relaxations.

read-only

Argument	Type	Description
mood	array
seed	string	Deterministic pick.
genre	string
plays	string	here: only games that play embedded (on ArcadeIndex and in the in-chat player); developer_site: only games that play on the developer's own site (implies include_listing_only).
inputs	array
players	string
difficulty	array
min_quality	integer
exclude_genres	array
content_rating_max	string

search_games

Find web games from a natural-language query plus optional filters (genre, mood, session length, players, quality, content rating, difficulty, inputs). Phrases like 'for kids', '2 player', 'under 10 minutes', 'not a shooter', 'easy' or 'chill' are turned into filters (echoed as interpreted_filters); explicit params win. 'like {title}' or 'similar to {title}' naming a game in the catalog returns that game's games_like results (anchor is set). Returns only published, playable games verified within the last 8 days (listing-only games with include_listing_only=true; plays=here or plays=developer_site picks one kind). content_rating_max defaults to teen. Zero results is a success with code NO_MATCHES and up to 3 executed relaxations whose args you can call again (with the tool named in tool, when set). Quote match_reasons and link play_url; render 'via ArcadeIndex' per the attribution block.

read-only

Argument	Type	Description
mood	array
genre	string
limit	integer
plays	string	here: only games that play embedded (on ArcadeIndex and in the in-chat player); developer_site: only games that play on the developer's own site (implies include_listing_only).
query*	string	Natural-language query, e.g. 'easy 2 player game for kids'.
inputs	array

trending

Games trending over the last day or week (genre scope when genre is set). trending_basis says whether play data or the recency fallback was used. Returns only published, playable games verified within the last 8 days (listing-only games with include_listing_only=true; plays=here or plays=developer_site picks one kind). content_rating_max defaults to teen. Zero results is a success with code NO_MATCHES and up to 3 executed relaxations whose args you can call again (with the tool named in tool, when set). Quote match_reasons and link play_url; render 'via ArcadeIndex' per the attribution block.

read-only

Argument	Type	Description
mood	array
genre	string
limit	integer
plays	string	here: only games that play embedded (on ArcadeIndex and in the in-chat player); developer_site: only games that play on the developer's own site (implies include_listing_only).
inputs	array
window	string
players	string
difficulty	array

{ "type": "object", "properties": { "mood": { "type": "array", "items": { "enum": [ "cozy", "chill", "zen", "chaotic", "spooky", "competitive", "silly", "intense", "cute", "brainy", "satisfying", "atmospheric" ], "type": "string" }, "default": [], "maxItems": 3 }, "genre": { "enum": [ "action", "adventure", "arcade", "board-card", "clicker-idle", "driving-racing", "educational", "fighting", "horror", "io-games", "music-rhythm", "party-multiplayer", "physics", "platformer", "puzzle", "rpg", "shooter", "simulation", "sports", "strategy", "survival", "tower-defense", "tycoon-management", "word-trivia" ], "type": "string" }, "limit": { "type": "integer", "default": 10, "maximum": 50, "minimum": 1 }, "plays": { "enum": [ "here", "developer_site" ], "type": "string", "description": "here: only games that play embedded (on ArcadeIndex and in the in-chat player); developer_site: only games that play on the developer's own site (implies include_listing_only)." }, "inputs": { "type": "array", "items": { "enum": [ "mouse", "keyboard", "touch", "gamepad" ], "type": "string" }, "maxItems": 4 }, "players": { "enum": [ "1", "2", "multi" ], "type": "string" }, "difficulty": { "type": "array", "items": { "enum": [ "easy", "medium", "hard", "brutal" ], "type": "string" }, "maxItems": 4 }, "min_quality": { "type": "integer", "default": 50, "maximum": 100, "minimum": 0 }, "exclude_genres": { "type": "array", "items": { "enum": [ "action", "adventure", "arcade", "board-card", "clicker-idle", "driving-racing", "educational", "fighting", "horror", "io-games", "music-rhythm", "party-multiplayer", "physics", "platformer", "puzzle", "rpg", "shooter", "simulation", "sports", "strategy", "survival", "tower-defense", "tycoon-management", "word-trivia" ], "type": "string" }, "default": [], "maxItems": 5 }, "content_rating_max": { "enum": [ "everyone", "everyone_10", "teen", "mature" ], "type": "string", "default": "teen" }, "session_length_max": { "type": "integer", "maximum": 240, "minimum": 1 }, "include_listing_only": { "type": "boolean", "default": false } }, "additionalProperties": false }

{ "type": "object", "properties": { "mood": { "type": "array", "items": { "enum": [ "cozy", "chill", "zen", "chaotic", "spooky", "competitive", "silly", "intense", "cute", "brainy", "satisfying", "atmospheric" ], "type": "string" }, "default": [], "maxItems": 3 }, "seed": { "type": "string", "maxLength": 64, "description": "Deterministic pick." }, "genre": { "enum": [ "action", "adventure", "arcade", "board-card", "clicker-idle", "driving-racing", "educational", "fighting", "horror", "io-games", "music-rhythm", "party-multiplayer", "physics", "platformer", "puzzle", "rpg", "shooter", "simulation", "sports", "strategy", "survival", "tower-defense", "tycoon-management", "word-trivia" ], "type": "string" }, "plays": { "enum": [ "here", "developer_site" ], "type": "string", "description": "here: only games that play embedded (on ArcadeIndex and in the in-chat player); developer_site: only games that play on the developer's own site (implies include_listing_only)." }, "inputs": { "type": "array", "items": { "enum": [ "mouse", "keyboard", "touch", "gamepad" ], "type": "string" }, "maxItems": 4 }, "players": { "enum": [ "1", "2", "multi" ], "type": "string" }, "difficulty": { "type": "array", "items": { "enum": [ "easy", "medium", "hard", "brutal" ], "type": "string" }, "maxItems": 4 }, "min_quality": { "type": "integer", "default": 50, "maximum": 100, "minimum": 0 }, "exclude_genres": { "type": "array", "items": { "enum": [ "action", "adventure", "arcade", "board-card", "clicker-idle", "driving-racing", "educational", "fighting", "horror", "io-games", "music-rhythm", "party-multiplayer", "physics", "platformer", "puzzle", "rpg", "shooter", "simulation", "sports", "strategy", "survival", "tower-defense", "tycoon-management", "word-trivia" ], "type": "string" }, "default": [], "maxItems": 5 }, "content_rating_max": { "enum": [ "everyone", "everyone_10", "teen", "mature" ], "type": "string", "default": "teen" }, "session_length_max": { "type": "integer", "maximum": 240, "minimum": 1 }, "include_listing_only": { "type": "boolean", "default": false } }, "additionalProperties": false }

{ "type": "object", "required": [ "query" ], "properties": { "mood": { "type": "array", "items": { "enum": [ "cozy", "chill", "zen", "chaotic", "spooky", "competitive", "silly", "intense", "cute", "brainy", "satisfying", "atmospheric" ], "type": "string" }, "default": [], "maxItems": 3 }, "genre": { "enum": [ "action", "adventure", "arcade", "board-card", "clicker-idle", "driving-racing", "educational", "fighting", "horror", "io-games", "music-rhythm", "party-multiplayer", "physics", "platformer", "puzzle", "rpg", "shooter", "simulation", "sports", "strategy", "survival", "tower-defense", "tycoon-management", "word-trivia" ], "type": "string" }, "limit": { "type": "integer", "default": 10, "maximum": 50, "minimum": 1 }, "plays": { "enum": [ "here", "developer_site" ], "type": "string", "description": "here: only games that play embedded (on ArcadeIndex and in the in-chat player); developer_site: only games that play on the developer's own site (implies include_listing_only)." }, "query": { "type": "string", "maxLength": 200, "minLength": 1, "description": "Natural-language query, e.g. 'easy 2 player game for kids'." }, "inputs": { "type": "array", "items": { "enum": [ "mouse", "keyboard", "touch", "gamepad" ], "type": "string" }, "maxItems": 4 }, "players": { "enum": [ "1", "2", "multi" ], "type": "string" }, "interpret": { "type": "boolean", "default": true, "description": "Rule-based intent extraction (agent-api §7)." }, "difficulty": { "type": "array", "items": { "enum": [ "easy", "medium", "hard", "brutal" ], "type": "string" }, "maxItems": 4 }, "min_quality": { "type": "integer", "default": 50, "maximum": 100, "minimum": 0 }, "exclude_genres": { "type": "array", "items": { "enum": [ "action", "adventure", "arcade", "board-card", "clicker-idle", "driving-racing", "educational", "fighting", "horror", "io-games", "music-rhythm", "party-multiplayer", "physics", "platformer", "puzzle", "rpg", "shooter", "simulation", "sports", "strategy", "survival", "tower-defense", "tycoon-management", "word-trivia" ], "type": "string" }, "default": [], "maxItems": 5 }, "content_rating_max": { "enum": [ "everyone", "everyone_10", "teen", "mature" ], "type": "string", "default": "teen" }, "session_length_max": { "type": "integer", "maximum": 240, "minimum": 1 }, "include_listing_only": { "type": "boolean", "default": false } }, "additionalProperties": false }

{ "type": "object", "properties": { "mood": { "type": "array", "items": { "enum": [ "cozy", "chill", "zen", "chaotic", "spooky", "competitive", "silly", "intense", "cute", "brainy", "satisfying", "atmospheric" ], "type": "string" }, "default": [], "maxItems": 3 }, "genre": { "enum": [ "action", "adventure", "arcade", "board-card", "clicker-idle", "driving-racing", "educational", "fighting", "horror", "io-games", "music-rhythm", "party-multiplayer", "physics", "platformer", "puzzle", "rpg", "shooter", "simulation", "sports", "strategy", "survival", "tower-defense", "tycoon-management", "word-trivia" ], "type": "string" }, "limit": { "type": "integer", "default": 10, "maximum": 50, "minimum": 1 }, "plays": { "enum": [ "here", "developer_site" ], "type": "string", "description": "here: only games that play embedded (on ArcadeIndex and in the in-chat player); developer_site: only games that play on the developer's own site (implies include_listing_only)." }, "inputs": { "type": "array", "items": { "enum": [ "mouse", "keyboard", "touch", "gamepad" ], "type": "string" }, "maxItems": 4 }, "window": { "enum": [ "day", "week" ], "type": "string", "default": "week" }, "players": { "enum": [ "1", "2", "multi" ], "type": "string" }, "difficulty": { "type": "array", "items": { "enum": [ "easy", "medium", "hard", "brutal" ], "type": "string" }, "maxItems": 4 }, "min_quality": { "type": "integer", "default": 50, "maximum": 100, "minimum": 0 }, "exclude_genres": { "type": "array", "items": { "enum": [ "action", "adventure", "arcade", "board-card", "clicker-idle", "driving-racing", "educational", "fighting", "horror", "io-games", "music-rhythm", "party-multiplayer", "physics", "platformer", "puzzle", "rpg", "shooter", "simulation", "sports", "strategy", "survival", "tower-defense", "tycoon-management", "word-trivia" ], "type": "string" }, "default": [], "maxItems": 5 }, "content_rating_max": { "enum": [ "everyone", "everyone_10", "teen", "mature" ], "type": "string", "default": "teen" }, "session_length_max": { "type": "integer", "maximum": 240, "minimum": 1 }, "include_listing_only": { "type": "boolean", "default": false } }, "additionalProperties": false }