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GripForge MCP Server: Setup for Claude, Cursor and Other Apps

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Lets Claude or Cursor make game assets for you, such as rigged characters, weapons, textures, maps and playable game kits, using your GripForge account.

GripForge connects your assistant to the GripForge game-asset service. You ask for a character, a weapon in its hand, a seamless texture or a playable game kit, and the assistant calls the service and saves the result in your Library.

You can use the hosted address with an API key from your GripForge account, or the npm package, which also lets the assistant read and write files in your project. Generations cost credits, so ask for a quote before big jobs.

Good for

  • Indie developers who want characters, weapons and props without a 3D artist
  • Unity, Godot, Unreal and Three.js developers who want assets with the code to use them
  • Prototypers who want a playable game slice from a prompt

Works in

14 should work

Tap an app to see how to set it up and any known problems.

Install GripForge MCP

Claude Code

  1. 1

    Copy this prompt.

    Add the GripForge MCP server to Claude Code. Run this command:
    
    claude mcp add --transport http gripforge https://gripforge.ai/mcp --header "x-api-key: <GRIPFORGE_API_KEY>"
    
    Ask me for GRIPFORGE_API_KEY and only put the values in that config, nowhere else.
    
    Then check that it loaded and tell me if I need to sign in or restart.
  2. 2

    Paste it into Claude Code. It shows the change and asks before running it.

Requires API key.

Hosted needs nothing installed: use the first method with your key in the x-api-key header. Pick the npx method when the assistant must write files into your project (it reads and writes local paths, and runs local tools for Unreal maps and game kits).

From the project README. Source.

Tools

  • Makes a rigged, game-ready character from a text prompt or a picture

    Creates a character in a T-pose with a Mixamo-style skeleton and saves it to your GripForge Library. Give it a text description, or a concept image to build from. It costs credits per generation.

    Try: “Generate a hooded desert knight character, rigged and ready to animate.”

    Write · gripforge_generate_character

  • Makes a game-ready sword, gun or knife model

    Creates a weapon model with no rig and saves it to your Library as a weapon. The description says it costs 10 credits.

    Try: “Generate a curved obsidian sword for my knight.”

    Write · gripforge_generate_weapon

  • Makes a prop such as a crate, kart or barrier

    Creates a game-ready prop model, saves it to the Library and returns a job you poll for the result. It is charged to your subscription or costs 10 credits.

    Try: “Generate a mossy stone barrel prop I can scatter in a cave level.”

    Write · gripforge_generate_prop

  • Estimates what a generation will cost before you spend

    Gives a free estimate for a model, concept, texture, rig or animation. It reports your balance and the expected cost so the assistant can ask you before spending.

    Try: “How many credits would a rigged character with run and attack animations cost?”

    Network · gripforge_generation_quote

  • Puts a weapon or shield in a character's hand

    Finds the hand bone on a rigged character, scales the prop to the body and closes the fist around the grip. It returns the placement data with ready-to-paste Unity and Godot snippets, and can write a combined GLB file.

    Try: “Attach this sword to my knight's right hand and export the armed GLB.”

    Write · gripforge_attach

  • Adds idle, walk, run and attack animations to a character

    Copies a standard animation pack onto a Mixamo-style character from your Library. The pack covers idle, walk, run, attack, hit, death and dodge, plus extras.

    Try: “Animate my knight with the standard clip pack.”

    Write · gripforge_animate

  • Makes a texture tile and sharpens it without redrawing it

    Blends the seams so a texture repeats cleanly and upscales it to 2x or 4x, capped at 1024 or 2048 pixels. It keeps the original pattern and uses no credits. It writes the PNG into a folder you name.

    Try: “Make this cobblestone texture seamless and upscale it 2x.”

    Write · gripforge_texture_prep

  • Searches your Library and the community catalog

    Searches models, materials and animations and ranks results by how well they fit a GripForge game, with a grade from A to D and the reasons.

    Try: “Find a rigged goblin enemy under 10,000 triangles.”

    Network · gripforge_asset_search

  • Lists what is saved in your Library

    Lists characters, enemies, weapons, props, textures, HUD pieces and binds in your locker. You can filter by kind or game style and sort by fit.

    Try: “Show my weapons in the Library, best fit first.”

    Network · gripforge_library_list

  • Downloads a Library item into your project folder

    Writes the placement data and mesh for a Library item next to your working files. It defaults to a gripforge-library folder in the current directory.

    Try: “Pull lib_knight into my project.”

    Files · gripforge_library_pull

  • Uploads a local file to your Library

    Uploads a character, weapon, prop, texture, HUD piece or bind file from an absolute path on your computer.

    Try: “Upload ./assets/crate.glb to my Library as a prop.”

    Write · gripforge_library_push

  • Rebuilds a playable map layout from reference images

    Runs a staged pipeline from reference stills to a map graph, a greybox layout and then a dressed map. The tool notes that a known map stays its owner's intellectual property.

    Try: “Reconstruct a desert bomb-defusal map with two sites.”

    Write · gripforge_map_reconstruct

Read from the source code

Permissions

high risk · 5 things to watch

High risk

The assistant can create, change and delete things in your GripForge account, including game servers, and generations spend credits. Check each delete and each paid generation before you approve it.

What it can do

  • Read your data
  • Create and change things
  • Delete things
  • Read-only mode

Watch out for

  • It can delete game servers, projects and kits

    The server delete tool stops and deletes a game server and needs confirm set to true. The game project tool has a delete action (confirm true), and kit removal and rollback tools also delete. Approve each call. npmjs.com

  • Generations spend credits

    The README says generating a character or weapon costs 10 credits. Ask the assistant for a quote first. github.com

  • The npm package reads and writes your files

    Tools such as library pull, library push, texture prep and game import read or write paths on your computer. Keep it to the project folder you mean. npmjs.com

  • It can launch the Unreal editor

    The Unreal import tool starts the editor installed on your computer and keeps running after the call ends. npmjs.com

  • The API key travels in a header

    On the hosted route the key sits in your client config. Do not commit that file. github.com

Security advisories

No published security advisories as of Nov 1, 2026.

Technical details
Turning on read-onlyNo read-only mode is documented.
Talks togripforge.ai (hosted API, and any URL you pass as an asset)
Sign-in and keysA GripForge API key (gf_...) sent as an x-api-key header on the hosted route, or set as GRIPFORGE_API_KEY for the npm package. A game-specific GRIPFORGE_PUBLICATION_TOKEN is needed to update a published game page.

Questions

Is the GripForge MCP server official?

Yes. It is published by GripForge from its own repo and talks to the GripForge API.

Does it need an API key?

Yes. Create a key at gripforge.ai/account. On the hosted route it goes in an x-api-key header, and with the npm package it goes in GRIPFORGE_API_KEY.

Should I use the hosted address or the npm package?

Use the hosted address when you only need assets in your Library. Use the npm package when the assistant must read or write files in your project, because it works with local paths.

How much does it cost?

Generations use credits. The README says generating a character or weapon costs 10 credits, while reading the Library, animating an existing character and level and map kits cost nothing. A subscription can cover generation instead.

How many tools does it have, and are they all listed here?

More than 100, and the list here is partial. The published package registers well over a hundred tools across assets, maps, game kits, servers and audio. The ones shown are the most useful and the destructive ones.

Which game engines does it support?

Unity, Godot, Unreal and Three.js. Assets come with placement data and snippets for each.

Can it delete things?

Yes. It can delete game servers, uninstall kits from a project and roll back local changes. Delete calls are marked destructive, so approve them one at a time.

Information

updated Nov 2, 2026

Publisher
Official
Package
@gripforgeai/mcp
Registry
npm
Endpoint
https://gripforge.ai/mcp
Transport
stdio, Streamable HTTP
Auth
API key
Version
0.1.156
License
MIT
Last commit
Oct 29, 2026
Open issues
0
Listed in
Official MCP registry

WebsiteGitHubnpmOfficial MCP RegistryIssues

Sources

Docs, issue trackers and discussions this page is built from. Issues, quotes and findings above link to their own source.

Show all 2
  1. GripForge MCP README · github.com
  2. @gripforgeai/mcp on npm (v0.1.164 dist) · npmjs.com

Facts from the official MCP registry, GitHub, npm, PyPI and the Docker catalog. Updated Nov 2, 2026.