Shapeweld

npx add-mcp 'https://shapeweld.com/mcp'

Shapeweld MCP server

A 3D converter your agent can call. Shapeweld's free converters are also a remote MCP server: point an agent at one URL and it can ask what a conversion keeps, hand over a file, wait for it and give you the download link.

This repository holds the server's registry manifest (server.json) and this guide. The server itself runs at shapeweld.com; there is nothing to install.

The endpoint

https://shapeweld.com/mcp

Streamable HTTP, no sign-in, no key. The server is the same converter the pages use, with the same limits and the same 3-day retention.

Connecting

Claude

1. Open Settings → Connectors.
2. Choose Add custom connector.
3. Paste https://shapeweld.com/mcp and save.
4. Ask Claude to convert a file you attached or linked.

ChatGPT

ChatGPT lists MCP servers through its directory; Shapeweld is submitted and will appear there once accepted. Until then the server works in any client that takes a URL.

Cursor and other clients

Cursor, Windsurf, VS Code and most agent frameworks take a remote MCP server by URL in their MCP settings: add https://shapeweld.com/mcp as a streamable-http server. No command, no environment variables.

{
  "mcpServers": {
    "shapeweld": { "type": "streamable-http", "url": "https://shapeweld.com/mcp" }
  }
}

The five tools

Tool	What it does	Input
list_tools	Lists the conversions on offer with the accepted extensions and size caps.	none
conversion_notes	Says what a pair keeps and what it drops before you upload anything.	from, to
convert_file	Downloads your file from a link, or takes the file you attached in ChatGPT, and starts the conversion.	to, file_url or file, from for a zip, options
job_status	Queued, processing, ready, failed, or refused with the reason.	jobId
result_link	The download link, the file name, the expiry date and a viewer link.	jobId

Formats: GLB, FBX, OBJ, Blender (.blend), STL, PLY, DAE, USDZ and 3MF, in the pairs listed by list_tools; plus the mesh tools (compress-glb, mesh-decimate, mesh-lod, mesh-repair, mesh-unwrap, svg-to-3d), addressed by their kind in to.

Limits

Per session: 10 conversions an hour and 40 a day. Across all agents: 200 a day. Files follow the page's cap: 100 MB for the GLB, FBX, OBJ and Blender pairs and the compressor, 50 MB for the rest, 5 MB for an SVG. Only https links are fetched.

When a limit is reached the tool says so and gives the page URL, where the same conversion runs in the browser.

What we receive and keep

We receive the file the agent fetched for you and the agent's name (Claude, ChatGPT, Cursor or other). We keep the upload and the result for 3 days, then delete both. We never receive your conversation. Results are handed out through a signed link that works without a cookie for those 3 days. Privacy: https://shapeweld.com/privacy

Domain verification

When the server is submitted to the ChatGPT directory, the challenge file is served from the site at https://shapeweld.com/.well-known/openai-apps-challenge; it is not part of this repository.

Questions

support@shapeweld.com · https://shapeweld.com/developers

MIT licensed.