What is the best alternative to Calendly?

The top-rated alternatives to Calendly in the Developer Tools category include Calendly MCP Server, Astrocal Dev MCP, Odds API MCP Server. These servers offer complementary or alternative capabilities depending on your deployment stack and authentication requirements.

How do Calendly alternatives differ in installation and runtime?

Calendly and its alternatives vary by runtime requirement (Node.js/npx, Python/uvx, Docker, or remote HTTP/SSE endpoints). Check the specification comparison table above to verify command requirements before installing.

Are alternatives to Calendly free and open source?

Most MCP servers listed on AllMCPs are open source tools under MIT or Apache licenses that you can self-host or run locally with Claude Desktop, Cursor, VS Code, or Windsurf.

How do I side-by-side compare Calendly with a specific alternative?

Click the "Compare side-by-side →" button on any alternative card to see an in-depth comparison matrix covering feature lists, stars, npm downloads, install configurations, and schema specifications.

Best Alternatives to Calendly (Developer Tools)

Server Name	Runtime	Auth	Pricing	GitHub Stars	Downloads	Action
C Calendly (Target)	Remote (SSE)	Free/None	Free	—	—	Current
Calendly MCP Server	uvx	Free/None	Free	—	—	Compare →
Astrocal Dev MCP	npx	Free/None	Free	1	—	Compare →
O Odds API MCP Server	npx	Free/None	Free	1	—	Compare →
C Calendar.app	npx	Free/None	Free	1	—	Compare →
Andrea9293 MCP	npx	Free/None	Free	342	—	Compare →
PraisonAI	npx	Free/None	Free	9,023	—	Compare →
Labelhead Artist Momentum	npx	Free/None	Free	80,077	—	Compare →
Webcomponents MCP Server	npx	Free/None	Free	19	—	Compare →
Luma Events	Remote (SSE)	Free/None	Free	—	—	Compare →
Open Notebook	npx	Free/None	Free	44	—	Compare →
N Npm	Remote (SSE)	Free/None	Free	—	—	Compare →
Ignite UI MCP Server	npx	Free/None	Free	136	—	Compare →