The short answer
23 products in this directory are tagged with this job. 11 of the 26 tagged entries have an official MCP server and 2 have a community one, so an agent can call 13 of them directly. 9 are reachable by one person without a contract. Counted 2026-08-25.
Booking is where an agent stops being a research tool and starts holding somebody else's time. It is also the job where the difference between reading a calendar and writing to one is worth being deliberate about: 12 entries are tagged with the read side, 26 with the write side.
The numbers, generated at build time
The ones with an official MCP server
- Cal.com Official MCP · Free to start
Open-source scheduling infrastructure - booking pages, event types, and a scheduling API/platform - offered both as a free, self-hostable... - Calendly Official MCP · Free to start
Prospect-facing scheduling links and booking pages that let invitees book meetings directly onto a rep's calendar based on defined availability rules. - Tavus Official MCP · Free to start
Developer platform for building real-time, two-way conversational AI video agents ("Conversational Video Interface") - positioned for GTM use cases... - Avoma Official MCP · Paid, self-serve
AI meeting platform combining scheduling, note-taking, and conversation intelligence (deal insights, coaching) for sales teams. - Chili Piper Official MCP · Paid, self-serve
Inbound lead-routing and instant meeting-booking platform ("Concierge") that qualifies web-form leads and books them directly onto the right rep's... - HighLevel (GoHighLevel) Official MCP · Paid, self-serve
An all-in-one agency CRM covering contacts, pipelines, conversations, calendars, payments and campaign automation across many client sub-accounts... - Mixmax Official MCP · Paid, self-serve
Gmail-native sales engagement layer that runs email sequences, tracking, calendaring and meeting notes from inside the inbox. - Default Official MCP · Gate unknown
An inbound go-to-market platform unifying revenue-stack data (a "Tables" data layer) with AI-agent-built workflows for lead routing, qualification,... - RevenueHero Official MCP · Gate unknown
Instant meeting-scheduling and inbound-lead-routing tool that qualifies web-form leads against CRM data and books them directly onto the right rep's...
The ones with a free tier
- Cal.com Official MCP · Free to start
Open-source scheduling infrastructure - booking pages, event types, and a scheduling API/platform - offered both as a free, self-hostable... - Calendly Official MCP · Free to start
Prospect-facing scheduling links and booking pages that let invitees book meetings directly onto a rep's calendar based on defined availability rules. - Tavus Official MCP · Free to start
Developer platform for building real-time, two-way conversational AI video agents ("Conversational Video Interface") - positioned for GTM use cases...
What this list is not
It is not a ranking and it is not a recommendation. A job tag means the vendor says the tool does
this. Nobody here has run any of them: 0 tools in this directory are bench tested.
Two tools on the same list can be wildly different in coverage, price and quality, and this
directory does not claim to know which.
Sources
Every number on this page is generated from directory.json at build time and carries
the date it was baked: 2026-08-25. Nothing is typed by hand, nothing is rounded, and nothing is
estimated. The underlying data is published in full. Where the honest
answer is a zero, the zero is printed.
Related questions
In the directory