@modelcontextprotocol/sdk

npm package · declared by 143 of 2,343 sampled repositories · graph computed 2026-08-24

Counted from the runtime dependencies public repositories declare — not the resolved tree. A transitive dependency is a consequence; a declared one is a choice. Development dependencies are excluded because they repeat across every project in a language regardless of what is being built.

Declared with

ranked by association, not by count
Tools declared alongside this one, ranked by association strength
Declared withRepositoriesvs chance
zod77 of 2,3430.58
better-sqlite318 of 2,3430.42
hono8 of 2,3430.40
@anthropic-ai/sdk10 of 2,3430.39
@clack/prompts9 of 2,3430.38
ws19 of 2,3430.37
express20 of 2,3430.36
commander21 of 2,3430.36
yaml13 of 2,3430.34
undici11 of 2,3430.34
dotenv22 of 2,3430.33
chalk13 of 2,3430.30
openai12 of 2,3430.30
axios13 of 2,3430.21
uuid8 of 2,3430.19
react19 of 2,3430.02
react-dom10 of 2,343-0.09

Every pair above is counted from the same evidence: repo manifest.

Used instead

candidates · shares a neighbourhood and refuses to co-occur

No alternative measured. A pair qualifies only if it shares a neighbourhood and then fails to appear together against an expectation that it would — and almost everything that shares a neighbourhood does appear together. That is the test working, not a gap in the data: similarity alone would list this tool’s closest neighbours as alternatives, and most of them are things it is used with.