3D Printer MCP Server

3D Printer MCP server enabling AI agents to control and monitor 3D printers via OctoPrint or Klipper — managing print jobs, monitoring print progress and temperatures, controlling printer axes, and integrating 3D printer management into agent-driven maker and manufacturing workflows.

Evaluated Mar 06, 2026 (0d ago) vcurrent
Homepage ↗ Repo ↗ Developer Tools 3d-printing octoprint klipper mcp-server iot maker printer-control
⚙ Agent Friendliness
71
/ 100
Can an agent use this?
🔒 Security
72
/ 100
Is it safe for agents?
⚡ Reliability
65
/ 100
Does it work consistently?

Score Breakdown

⚙ Agent Friendliness

MCP Quality
65
Documentation
68
Error Messages
65
Auth Simplicity
82
Rate Limits
82

🔒 Security

TLS Enforcement
78
Auth Strength
72
Scope Granularity
65
Dep. Hygiene
65
Secret Handling
78

Local network. API key. Don't expose to internet without auth. Community MCP. Physical safety: validate printer commands.

⚡ Reliability

Uptime/SLA
68
Version Stability
65
Breaking Changes
65
Error Recovery
62
AF Security Reliability

Best When

An agent needs to monitor or control a 3D printer via OctoPrint or Klipper — for print farm management, remote monitoring, or AI-assisted print optimization.

Avoid When

You don't have a 3D printer running OctoPrint or Klipper, or need slicing functionality.

Use Cases

  • • Monitoring 3D print progress and temperatures from remote monitoring agents
  • • Managing print queue and job submission from production agents
  • • Diagnosing print issues and adjusting parameters from troubleshooting agents
  • • Automating print farm workflows from manufacturing agents
  • • Reporting print status and completion from notification agents
  • • Controlling printer settings and calibration from maintenance agents

Not For

  • • Teams without 3D printers or OctoPrint/Klipper setups
  • • Slicing STL files (use slicer software; this is printer control, not slicing)
  • • Industrial CNC or laser cutters (3D printer-specific control)

Interface

REST API
Yes
GraphQL
No
gRPC
No
MCP Server
Yes ↗
SDK
No
Webhooks
Yes
OpenAPI Spec ↗

Authentication

Methods: api_key
OAuth: No Scopes: No

OctoPrint API key or Klipper/Moonraker API key required. Generated in OctoPrint settings or Moonraker configuration. Printer URL + API key for connection.

Pricing

Model: free
Free tier: Yes
Requires CC: No

OctoPrint and Klipper are free open source. MCP server is free. Your 3D printer hardware costs apply separately.

Agent Metadata

Pagination
none
Idempotent
Partial
Retry Guidance
Not documented

Known Gotchas

  • ⚠ Printer must be on and connected — MCP fails if printer is offline
  • ⚠ OctoPrint vs Klipper/Moonraker have different APIs — configure for correct backend
  • ⚠ Print control commands have real physical consequences — test carefully
  • ⚠ Temperature commands can cause hardware damage if used incorrectly
  • ⚠ Community MCP (Clad3815) — niche tool for 3D printing enthusiasts
  • ⚠ Local network required — printer must be network-accessible from agent machine

Alternatives

rust-mcp-filesystem tmux-mcp mcp-server-code-runner

Full Evaluation Report

Detailed scoring breakdown, competitive positioning, security analysis, and improvement recommendations for 3D Printer MCP Server.

$99
API endpoint ↗ Agent guide ↗ Report inaccuracy

Scores are editorial opinions as of 2026-03-06.

5215
Packages Evaluated
26151
Need Evaluation
173
Need Re-evaluation
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