An MCP server for working with Spline 3D design tool API
Spline MCP server exists for a simple reason — assistants are far more useful when they can act on Spline directly instead of describing what you should do. An MCP server for working with Spline 3D design tool API.
This MCP server was built to programmatically control Spline.design 3D scenes through Claude. However, Spline does not offer a public REST API for scene manipulation. The ~130 tools that call api.spline.design target endpoints that don't exist and will fail with network errors.
Once Spline is connected, these are the calls the assistant has available:
Method — DescriptionThe server ships on npm as npm, so your MCP client can launch it on demand — there is no separate build step. Add the server block to your client's configuration, restart it, and the tools register themselves.
This sits in the browser automation group, where several servers overlap in what they claim to do but differ sharply once you actually set them up. Spline's toolset — Method — is a fair guide to whether it matches your workflow. It is maintained by aydinfer; worth a glance at recent repository activity before you build anything load-bearing on it.
This entry was verified against Spline's own documentation before publication; SyncDev keeps the directory reviewed rather than auto-generated.
| Tool | What it does |
|---|---|
| Method | Description |
{
"mcpServers": {
"spline": {
"command": "npx",
"args": ["-y", "spline-mcp-server"]
}
}
}Configuration as documented by the project. Restart the client after saving.
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