MCP Servers

GripForge MCP

MCP server for attaching weapons and props to rigged characters via the GripForge API, supporting multiple styles and output formats for game engines.

Category

README

@gripforgeai/mcp

Attach weapons & props to rigged characters — from Claude Code, Cursor or any MCP client. Thin client for the GripForge API.

Install (Claude Code)

claude mcp add gripforge -e GRIPFORGE_API_KEY=gf_... -- npx -y @gripforgeai/mcp

Or in .mcp.json:

{
  "mcpServers": {
    "gripforge": {
      "command": "npx",
      "args": ["-y", "@gripforgeai/mcp"],
      "env": { "GRIPFORGE_API_KEY": "gf_..." }
    }
  }
}

Get a free API key (3 attaches / month) at https://gripforge.ai/login.

Install (Grok)

grok mcp add gripforge --env GRIPFORGE_API_KEY=gf_... -- npx -y @gripforgeai/mcp

Or in ~/.grok/config.toml:

[mcp_servers.gripforge]
command = "npx"
args = ["-y", "@gripforgeai/mcp"]
enabled = true
startup_timeout_sec = 45

[mcp_servers.gripforge.env]
GRIPFORGE_API_KEY = "gf_..."

Also works with Cursor, Windsurf and any MCP-compatible client — same command / args / env triple.

Tools

gripforge_attach — character + prop in, bone-local bind + Three.js / Unity / Godot snippets out. Styles: melee, gun, shield, staff (scythe/polearm). With export_glb: true (+ out_dir) it also writes attached.glb: the character with the fist closed and the prop attached, textures preserved — use this for mitten-hand rigs, whose closed fist cannot travel in a JSON bind.
gripforge_formats — supported formats & options.

Env

GRIPFORGE_API_KEY (required) — 1 credit = 1 successful attach
GRIPFORGE_API_URL (optional) — defaults to https://gripforge.ai

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