Side-by-Side Model Context Protocol Comparison
MCP Mgba vs Weppy Roblox MCP
In-depth architectural comparison of the MCP Mgba and Weppy Roblox MCP MCP servers. Compare execution transports, security boundaries, tool capabilities, quality scores, and ready-to-paste client installation snippets for Claude, Cursor, Windsurf, and VS Code.
At a Glance & Executive Verdict
MCP Mgba
Gaming · Local stdio
Quality: 64/100 (Good) | Auth: No auth required
Weppy Roblox MCP
Gaming · Local stdio
Quality: 59/100 (Good) | Auth: No auth required
Verdict Summary: Choose MCP Mgba if you need specialized Gaming tools running via a local process. Choose Weppy Roblox MCP if your workspace requires Gaming integration with local subprocess execution. Both servers can be configured concurrently in your client's
mcpServers manifest.Which MCP Server Should You Choose?
Choose MCP Mgba when:
- You need dedicated capabilities in the Gaming domain.
- You prefer local stdio subprocess transport architecture.
- Your security boundary fits: No auth required (Free / Open Source).
- You have access to required keys:
MGBA_HOST, MGBA_PORT. - Primary tools included: mgba_ping, mgba_get_info, mgba_read8.
Choose Weppy Roblox MCP when:
- You need dedicated capabilities in the Gaming domain.
- You prefer local stdio subprocess transport architecture.
- Your security boundary fits: No auth required (Free / Open Source).
- Primary tools included: query_instances, mutate_instances, manage_properties.
Feature & Specification Comparison
Tools & Capabilities Breakdown
MCP Mgba Tools (18)
mgba_ping
PURPOSE: Verify that the mGBA Lua bridge is connected and responding to RPC over the TCP socket. USAGE: Call this once at start-of-session before issuing other tool calls; if it succeeds, every other tool will at least be reachable (individual tools may still fail if the loaded mGBA build doesn't expose a particular emu method — see mgba_get_info → capabilities for that). BEHAVIOR: No side effects — pure liveness probe. Times out after a few seconds with a clear error if mGBA isn't running, isn't pointed at the right host:port, or hasn't loaded the bridge Lua script (Tools → Scripting in mGBA). RETURNS: The literal string 'pong' on success.
mgba_get_info
PURPOSE: Get the loaded ROM's title, internal game code (e.g. 'AGBE' for GBA Pokemon Emerald US, 'BPRE' for FireRed), platform identifier (GBA vs GB/GBC), current frame count, and a `capabilities` map listing which optional emu methods this mGBA build exposes (pause, unpause, frameAdvance, saveStateSlot, saveStateFile, screenshot, etc.). USAGE: Call after mgba_ping at the start of a session to identify the loaded ROM and feature-detect optional capabilities BEFORE invoking tools that depend on them — pause/unpause/reset/save_state/load_state/advance_frames are all build-dependent on mGBA. The platform field tells you whether to address memory using the GBA layout (32-bit, EWRAM 0x02000000) or the GB/GBC layout (16-bit, WRAM 0xC000). BEHAVIOR: No side effects — pure read of emulator metadata. Returns '(unavailable)' for fields the loaded core can't expose (title when no ROM is loaded, code on systems without a header, etc.). Never throws on a partial read. RETURNS: Multi-line text with Title, Code, Platform, Frame, then the lists of present and missing capabilities for this build.
Ready-to-Paste Client Configurations
Paste either (or both) of these JSON server blocks into your client config file (e.g. claude_desktop_config.json or ~/.cursor/mcp.json).
MCP Mgba Configuration
Weppy Roblox MCP Configuration