Skylos vs Xcode Build MCP
Two MCP servers from our developer tools ranking, compared on live data - updated nightly, never sponsored.
Bottom line · 2026-08-25
Xcode Build MCP records significantly more monthly package installs (597,794 vs 133,796); both are actively maintained, with commits inside the last month.
How they differ in kind
Skylos focuses on: Open-source, local-first checks for dead code, security issues, secrets, quality regressions, and AI-code mistakes before merge. Xcode Build MCP focuses on: A Model Context Protocol (MCP) server and CLI that provides tools for agent use when working on iOS and macOS projects. Implementation languages differ (Python vs TypeScript).
What each one does
Skylos
Open-source, local-first checks for dead code, security issues, secrets, quality regressions, and AI-code mistakes before merge.
From the project's README.
Xcode Build MCP
A Model Context Protocol (MCP) server and CLI that provides tools for agent use when working on iOS and macOS projects. It runs locally over stdio via the published package.
From the project's README.
14 signals, side by side
| Signal | Skylos | Xcode Build MCP |
|---|---|---|
| Monthly installs | 133,796 | 597,794 |
| GitHub stars | 542 | 6,274 |
| Last commit | 2026-08-24 | 2026-08-12 |
| Releases · last 90 days | 10+ | 4 |
| In the registry since | Mar 2026 | Sep 2025 |
| Registry versions | 1 | 23 |
| Documented tools | not extracted - see README | not extracted - see README |
| Env vars extracted | none extracted - see README | none extracted - see README |
| Runs | local (stdio) | local (stdio) |
| Endpoint auth | local only | local only |
| Maintenance | actively maintained | actively maintained |
| License | Apache-2.0 | MIT |
| Language | Python | TypeScript |
| Category rank | #4 of 139 | #2 of 139 |
Which one, for what
Derived from the signals above, not hands-on testing.
Pick Skylos if…
- → release velocity matters - 10+ releases in 90 days vs 4
- → you prefer a Python codebase to extend or audit
Pick Xcode Build MCP if…
- → you want the more widely installed option - 597,794 monthly installs vs 133,796
- → you prefer a TypeScript codebase to extend or audit
Who's behind them
Skylos - duriantaco: 1 MCP server tracked, 1 maintained, 542 combined stars.
Xcode Build MCP - getsentry: 2 MCP servers tracked, 2 maintained, 7,102 combined stars. Full record.
Not sold on either?
The next-ranked developer tools servers we track:
Quick answers
Is Skylos better than Xcode Build MCP?
Package installs favor Xcode Build MCP: 597,794 monthly installs to 133,796. Skylos still ranks #4 of 139 maintained developer tools servers. Data as of 2026-08-25; we haven't hands-on tested either.
Can I use Skylos and Xcode Build MCP together?
Yes - MCP clients accept multiple servers in one config, so you can enable both developer tools servers side by side. If their tools overlap, keep the one whose toolset fits to keep your agent's tool list lean.
Keep exploring: best developer tools servers · Python servers · TypeScript servers · all comparisons · every server
Methodology: package-usage signal = npm/PyPI installs (last month, platform APIs) · maintenance = commit recency + release cadence (GitHub) · tool lists and environment-variable names extracted from each project's README · endpoint auth from our own nightly probes. We haven't hand-tested these servers; everything here is data as of 2026-08-25.