Weppy Roblox MCP vs Unity API Documentation
A side-by-side look at the Weppy Roblox MCP and Unity API Documentation MCP servers: transport, auth, tools, quality signals, and the config to install either one in Claude, Cursor, Windsurf or VS Code.
Verdict: choose Weppy Roblox MCP for gaming work as a local process; choose Unity API Documentation for gaming as a local process. You can also run both side by side in one mcpServers block.
Which MCP server should you choose?
Choose Weppy Roblox MCP when
- You need dedicated capabilities in the Gaming domain.
- You prefer a local stdio subprocess transport.
- Its auth model fits you: No auth required.
- You want tools like
query_instances, mutate_instances, manage_properties.
Choose Unity API Documentation when
- You need dedicated capabilities in the Gaming domain.
- You prefer a local stdio subprocess transport.
- You want tools like
search_unity_api, get_method_signature, get_namespace.
Feature & specification comparison
Rows where the two servers differ are marked.
| Spec | ||
|---|---|---|
| Category | Gaming | Gaming |
| Quality signal | 69/100 · Great | 55/100 · Good |
| Install command | Confirmed | Confirmed |
| Transport | Local subprocess (stdio) | Local subprocess (stdio) |
| Auth | No auth required | Not declared |
| Pricing | Free | Not declared |
| Required env vars | None listed | None listed |
| Verified owner | Community listing | Community listing |
| GitHub stars | 68 | 67 |
| Directory activity | 4 views 0 installs 0 upvotes | 2 views 0 installs 0 upvotes |
| Tools | 25 | 5 |
| Full listing | View Weppy Roblox MCP | View Unity API Documentation |
Tools & capabilities
Weppy Roblox MCP tools 25
query_instancesQuery Roblox instances: get, children, find child/descendant, wait for child, class info, search by name/class. [PRO] file_tree, project_structure, descendants, ancestors, search by property/tag.mutate_instancesCreate, delete, clone, move, rename, or pivot instances. [PRO] create_tree, mass_create, mass_delete, mass_duplicate, smart_duplicate, scatter.manage_propertiesGet/set properties, attributes, and tags on instances. [PRO] set_calculated, set_relative, mass_set, mass_get, modify_children.manage_scriptsManage script source code: read, write, create, delete, edit lines, search, and validate Luau syntax. [PRO] replace across scripts.manage_uiCreate / update / verify Roblox in-game UI (ScreenGui / Frame / TextLabel / …). Always start with `design_brief`. For ambiguous input, it inspects Studio context and returns candidate brief patches; Do not dump enum lists at the user. An empty StarterGui does not prove runtime UI absence: for an existing-UI review, follow `runtime_review_required`, collect a structured Play Client PlayerGui snapshot, and pass its saved `runtimeEvidenceRef`. Pass relevant repository evidence in `projectContext`; explicit screen job, visual thesis, forbidden defaults, tokens, and approved assets determine the direction without a built-in subject preset. `design_brief` returns a primary-view-first Design Contract and an advisory Layout Plan with neutral regions, AnchorPoint strategy, and responsive behavior; it is not a hard tree preset or style quota. A calling agent may declare provider-neutral image generation capability through `agentCapabilities`; missing or unavailable capability must use the explicit existing, user-provided, Creator Store, or assetless fallback. Keep the returned `brief_id`, `design_contract`, and `layout_plan` through creation, update, preview, and check. The asset recommendation gate considers user references, project assets, existing UI, and user-approved `manage_assets.search` intent; do not use a recommendation until the user accepts it. After each meaningful create or update, preview the representative primary view and submit a calling-agent critic verdict (`recompose`, `refine`, or `approved`) with `visualReview`. Read `primary_visual_verdict`, `functional_safe`, `responsive_requirement`, `responsive_ready`, `required_dimensions`, and `readiness` separately from mutation success. Responsive evidence blocks readiness only when the Design Contract marks it required. Read `weppy://ui-studio/guide` for the authoring workflow, `weppy://ui-studio/tokens` for optional visual examples, and `weppy://ui-studio/functional-rules` for machine-readable advisory evidence rules. Design Check permits `priority_high` only for observed functional visual failures such as meaningful overlap, unreadable content, invalid geometry, or primary-view occlusion; style-only findings remain medium or low.manage_lighting[PRO] Configure environment: lighting, atmosphere, sky, terrain properties, time of day.manage_selectionGet, set, or clear selection. [PRO] context, details, add/remove items, watch changes.manage_cameraCamera operations: get info, focus on instance/position, suggest view, capture Edit-mode viewport screenshot (Edit mode only; not usable during playtest).manage_tween[PRO] Tween service: create, play, pause, cancel tweens for smooth animations.manage_audio[PRO] Audio management: play, stop, pause, resume sounds. Set audio listener.manage_animation[PRO] Animation: load, play, stop animations. Get animation tracks from humanoid/controller.manage_physics[PRO] Physics collision groups: register, set collidable between groups, list groups.- +13 more on the listing page
Unity API Documentation tools 5
search_unity_apiFind APIs by keywordget_method_signatureExact signatures with all overloadsget_namespaceResolve `using` directivesget_class_referenceFull class reference cardget_deprecation_warningsCheck if an API is obsolete
Ready-to-paste client configs
Paste either block (or both) into your client config, e.g. claude_desktop_config.json or ~/.cursor/mcp.json. We only show a config when the install command is confirmed.
Weppy Roblox MCP
{
"mcpServers": {
"hope1026-weppy-roblox-mcp": {
"command": "npx",
"args": [
"-y",
"@weppy/roblox-mcp@latest"
]
}
}
}
Unity API Documentation
{
"mcpServers": {
"unity-api-documentation": {
"command": "uvx",
"args": [
"unity-api-mcp"
]
}
}
}
Frequently asked questions
Weppy Roblox MCP is categorized under Gaming and uses a local stdio subprocess. Unity API Documentation belongs to Gaming and uses a local stdio subprocess. Pick Weppy Roblox MCP for gaming work and Unity API Documentation for gaming.
Copy the mcpServers block from the config section on this page into your client's config (for example claude_desktop_config.json or ~/.cursor/mcp.json), then fully restart the client.
Weppy Roblox MCP is listed as free. Auth: no auth required. Unity API Documentation has no declared pricing — check the project's own site. If a server needs environment variables such as API keys, define them under the env key in your client's MCP config.
Yes. MCP clients support multiple servers: add hope1026-weppy-roblox-mcp and unity-api-documentation as separate keys in the same mcpServers object, and your assistant will call tools from either one.
On AllMCPs, Weppy Roblox MCP has a quality signal of 69/100 (Great) with 4 views, 0 installs and 68 GitHub stars. Unity API Documentation has 55/100 (Good) with 2 views, 0 installs and 67 GitHub stars.