The Index · Communication

Lark vs Slack · modelcontextprotocol

Lark scores 25 points higher on the same evidence, which is a real separation rather than noise. Both are measured the same way, on the same day, from public evidence only — so this is a comparison of two measurements rather than two marketing pages. How we measure ›

LarkSlack · modelcontextprotocolwhat it means
tashan score4722upkeep + freshness, gated by adoption
Adoption evidence9k/wk84k/wkthe raw public signal the score came from
Last releaseabandonedabandonednpm publish or repo push
Upkeep6619cadence, maintainers, status
Expertise gradenot gradednot gradedan LLM read of its own documentation against a fixed rubric
Security auditno known advisories, no build provenanceno known advisories, no build provenanceexistence of findings is always free; the detail a licence buys is on each dossier
LicenceMITMIT
Maintainersmore than onemore than onebus-factor risk

Install either

Lark

claude mcp add larksuiteoapi-lark-mcp -- npx -y @larksuiteoapi/lark-mcp

Slack · modelcontextprotocol

claude mcp add modelcontextprotocol-server-slack -- npx -y @modelcontextprotocol/server-slack

Neither score is a security verdict — "well maintained" and "nothing known is wrong" are different claims, which is why the audit is a separate row and never folded into the number. The full audit for each, including what a licence adds, is on its own page: Lark · Slack · modelcontextprotocol.

All ranked Communication ›