MCP server

Fractal Arena

io.github.Arthefacte/fractal-arena

Checked 26 Oct 2026, 08:31 UTC · Still published on its registry; checked against OSV.dev; never run by us

Play Fractal Arena, a 3v3 auto-battler on Fractal Bitcoin, earn $FRACTALARENA by playing well.

At a glance

Type

MCP server

Publisher

Not verified

Status

Runs on your computer

Sets up in

Claude Code, Claude Desktop, Codex, Gemini CLI, Cursor, VS Code

Last checked

26 Oct 2026, 08:31 UTC

Connect it to your agent

Add to CursorAdd to VS CodeVS Code Insiders

Opens the app, which shows the server and asks you to confirm. It then runs the package on your computer with your permissions. For other apps, copy the setup below.

Claude Code

claude mcp add fractal-arena --env FRACTAL_ARENA_API_KEY=YOUR_VALUE -- npx -y fractal-arena-mcp@1.18.0

Claude Desktop

{"mcpServers":{"fractal-arena":{"command":"npx","args":["-y","fractal-arena-mcp@1.18.0"],"env":{"FRACTAL_ARENA_API_KEY":"YOUR_VALUE"}}}}

Codex (config.toml)

[mcp_servers.fractal-arena]
command = "npx"
args = ["-y","fractal-arena-mcp@1.18.0"]
env = { FRACTAL_ARENA_API_KEY = "YOUR_VALUE" }

Gemini CLI

{"mcpServers":{"fractal-arena":{"command":"npx","args":["-y","fractal-arena-mcp@1.18.0"],"env":{"FRACTAL_ARENA_API_KEY":"YOUR_VALUE"}}}}

Cursor

{"mcpServers":{"fractal-arena":{"command":"npx","args":["-y","fractal-arena-mcp@1.18.0"],"env":{"FRACTAL_ARENA_API_KEY":"YOUR_VALUE"}}}}

VS Code

{"servers":{"fractal-arena":{"type":"stdio","command":"npx","args":["-y","fractal-arena-mcp@1.18.0"],"env":{"FRACTAL_ARENA_API_KEY":"YOUR_VALUE"}}}}

Runs on your computer with your permissions: check the package and its source before installing. Replace YOUR_VALUE with your own FRACTAL_ARENA_API_KEY.

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