mcp-server-microsoft-paint
Provides an MCP (JSON-RPC 2.0 over stdin/stdout) server that can launch or connect to Microsoft Paint on Windows and control it (e.g., bring window to foreground, draw lines/shapes/pixels, set colors/tools, and query canvas dimensions).
Score Breakdown
⚙ Agent Friendliness
🔒 Security
Likely operates locally via stdin/stdout; no transport security/auth is described. Because it controls a desktop app, it should be run in a controlled/sandboxed environment to reduce risk from untrusted inputs and unintended command sequences. No details provided about dependency scanning, secret handling, or access control.
⚡ Reliability
Best When
You have a Windows 10/11 environment with Microsoft Paint installed and you want an MCP tool interface to produce drawings via JSON-RPC calls.
Avoid When
You need strong security guarantees, networked multi-tenant access, or idempotent/non-destructive operations (drawing commands are inherently stateful).
Use Cases
- • Agent-driven UI automation for simple drawing tasks in Microsoft Paint
- • Prototyping human-in-the-loop drawing workflows (agent generates commands, user approves)
- • Testing or demonstrating MCP/JSON-RPC tool calling with a tangible visual output
Not For
- • Headless/server-side rendering (requires Windows + Paint GUI)
- • Security-sensitive automation without sandboxing (controls a desktop app)
- • High-reliability production automation for arbitrary drawing workloads
Interface
Authentication
No authentication mechanism is described for the JSON-RPC transport (stdin/stdout local process model assumed).
Pricing
Agent Metadata
Known Gotchas
- ⚠ GUI automation is sensitive to window focus/availability and timing (e.g., Paint must be launched and ready).
- ⚠ Commands are stateful (color/tool/window/canvas state), so incorrect sequencing can produce unexpected output.
- ⚠ No explicit idempotency or deduplication is described; retries may create duplicate marks.
- ⚠ Color formats (e.g., hex strings) and coordinate system assumptions are not fully specified beyond examples.
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Scores are editorial opinions as of 2026-03-30.