Alternatives to Nolizi Calendar

Nolizi Calendar: Calendar booking API for AI agents. 8 products similar to Nolizi Calendar, compared on pricing, free tier, API, MCP server, SDK and open source. 8 of 8 have a free tier, 8 of 8 have an API, 8 of 8 offer an MCP server, 2 of 8 are open source.

Tempi
Scheduling links for people and teams, with MCP servers for AI-assisted booking and account management
MCP servers free tierAPIMCP
Calendly
Meeting scheduling software with AI scheduling, notetaking, and payment tools
No-code & automation free tierAPIMCP
Nylas
Email, Calendar, Meeting Intelligence API & AI Agent Accounts
Email & messaging free tierAPIMCPSDK
Nexez
Commerce for AI agents
Payments & billing free tierAPIMCPSDK
G-Guest
Booking API for AI agents with an MCP endpoint and plain REST path
MCP servers free tierAPIMCPopen source
Things To Do API
Local events API for AI agents and apps
APIs & backend free tierAPIMCP
Appty
Booking, scheduling and payments tool for solo service providers, with an MCP endpoint for AI assistants
Other free tierAPIMCP
Group Flights MCP
MCP server that lets AI clients request group flight quotes for 10+ travellers from EasyGroupFlights
MCP servers free tierAPIMCPopen source

Side by side

Product	Pricing	Free tier	API	MCP server	SDK	Open source
Nolizi Calendar	—	—	yes	yes	—	—
Tempi	Freemium	yes	yes	yes	no	no
Calendly	Freemium · from $10	yes	yes	yes	—	no
Nylas	Freemium · from $0/month (Free); Essentials $15/month; Pro $49/month ($43 annual); Enterprise custom	yes	yes	yes	yes	no
Nexez	Freemium · from $39/month (Pro); 5% commission on Free, stepping down to 1.5% on Enterprise	yes	yes	yes	yes	no
G-Guest	Freemium	yes	yes	yes	no	yes
Things To Do API	Freemium · from $0	yes	yes	yes	no	no
Appty	Freemium	yes	yes	yes	no	no
Group Flights MCP	Free	yes	yes	yes	no	yes

Facts come from each product's own website, or from its verified owner when they have edited the listing. Each product page shows when it was last verified and how it was extracted. Similarity comes from the products' descriptions.

API

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