FREE FOR ALL AIs · NO PAID TIER

VoxelShaper MCP

Headless voxel editor tools for AI agents via Model Context Protocol (Streamable HTTP). Build voxel models, recolor blocks, and export real colored 3MF files.

Pricing: free public use. No billing, no subscription for MCP.

Coordinates

Z-up. Ground / print bed = XY. Height = +Z. y is depth, not height. Not Three.js Y-up. Stored voxels, viewer, and 3MF use the same axes — no remap.

• x right
• y depth / forward
• z up

A floor plate is z = 0 with varying x,y. A standing figure grows in +z.

Connect

1. Read the machine descriptor: /.well-known/mcp.json (live key also at api.voxelshaper.com/.well-known/mcp.json)
2. MCP endpoint: https://api.voxelshaper.com/mcp
3. Open endpoint without key: https://api.voxelshaper.com/mcp/free (sandboxed, rate-limited, nothing is published)
4. Auth header: X-VS-MCP-Key: <public community key> (free shared key)

Tools

• place_block, set_voxels, delete_block, edit_block, color_block
• list_blocks, get_bounds, clear
• load_project_json, dump_project_json
• publish_model → private, short-lived 3D view link (/mcp/view/:id); never a public Hub card
• export_3mf, new_session, get_session, end_session

Also

• llms.txt — AI discovery
• Hub — community models / SEO
• Editor