Is Calendly safe and trustworthy?

tashan scores Calendly on public evidence — tashan score 19.0/100, it is currently abandoned, note: a single primary maintainer (bus-factor risk), no known advisories against the current release, its declared dependencies reach: network. Audit scope: OSV advisories, install-time scripts, build provenance and declared permission surface. We do not review source code or execute the capability.

How do I install Calendly?

In Claude Code: run `claude mcp add calendly-mcp-server -- npx -y calendly-mcp-server`. In Cursor / Claude Desktop, add it to mcp.json / claude_desktop_config.json.

Who maintains Calendly?

source: meAmitPatil/calendly-mcp-server.

‹ The Index

Calendly

npm

MCP server for Calendly API integration with email automation support

Works with: Claude Code, Cursor, Claude Desktop, Codex CLI, Gemini CLI, Cline, Windsurf, VS Code (installable)
installable: each client documents how to load an MCP server of this type — that is the client's promise, not a claim verified against this capability

Work: Application development · Messaging and email

Who it is for: Software engineer · Operations

Install (Claude Code):

claude mcp add calendly-mcp-server -- npx -y calendly-mcp-server

Looking for a replacement? npx tashan-cli doctor is free and tells you everything above about your whole config. tashan Pro names the replacement — which one, and how it measures. $6/mo.

What changed recently

2026-08-10 calendly-mcp-server now reaches network Its declared dependencies reach further into your machine than they did before.

You are reading this because you came looking. tashan Pro gives tashan doctor the history behind it, so a run over your own config says which of YOURS moved.

You searched for one. Check the rest of your stack:

npx tashan-cli doctor

Reads the config already on your machine and names what is dead, deprecated or running code at install time. No account, nothing uploaded.

tashan Pro$6/mo

We recorded 1 change to Calendly in the last 45 days. Pro tells you on the day — for the servers in your own config, not the ones you thought to look up.

Every score since we started measuring, for any capability
The named replacement when something you run is dying — not just that it is
tashan doctor over the config you already have, on your machine

Start a 7-day trial › Everything measured on this page stays free.

Show your score

Measured this well? Put the live badge in your README — it updates as the score does.

[![tashan](https://tashan.sh/badge/pkg-calendly-mcp-server.svg)](https://tashan.sh/capability/pkg-calendly-mcp-server.html)

tashan score: 19.0
Adoption: 115/wk
Upkeep: 28.0
Freshness: 27.0
Evidence coverage: 100% of the inputs this score can use
Health: abandoned

Security audit

Every finding is shown in full — which advisory, the version that fixes it, and the exact command run at install time. Nothing in this audit is behind a licence.

No known advisoriesclearchecked against OSV for 1.0.0

Makes network requestsfrom declared dependencies

Can carry remote content into your agentit can pull third-party text into the model's context — treat what it returns as untrusted input

No build provenanceno attestation — the published artifact cannot be traced to its source

npm ↗ · source ↗ · pkg:calendly-mcp-server

Already running this? npx tashan-cli doctor checks your whole config against the Index — how it works ›

Measured 2026-08-10 · scorer s5 · how · something wrong here?