cancelBooking
:bookingUid can be :bookingUid of an usual booking, individual recurrence or recurring booking to cancel all recurrences.
Part of the Cal.com MCP server. Enforce policies on this tool with Intercept, the open-source MCP proxy.
WHEN AI AGENTS USE THIS TOOL
AI agents call cancelBooking to perform operations in Cal.com. While the risk category is not fully classified, applying a rate limit gives you visibility into how often the tool is called and prevents unexpected bursts of activity from autonomous agents.
WHY ENFORCE A POLICY ON CANCELBOOKING
Applying a policy to cancelBooking gives you an audit trail of every call an AI agent makes. Even for low-risk tools, visibility into agent behaviour helps you debug issues, optimise workflows, and maintain compliance with your organisation's security requirements.
RECOMMENDED POLICY
Apply a rate limit to control usage and monitor for unexpected behaviour.
tools:
cancelBooking:
rules:
- action: allow
rate_limit:
max: 60
window: 60See the full Cal.com policy for all 8 tools.
DETAILS
MORE CAL.COM TOOLS
deleteEventType Other getBooking Other getBookings Other getEventTypeById Other getEventTypes Other rescheduleBooking Other updateEventType Other SIMILAR OTHER TOOLS ON OTHER SERVERS
RELATED READING
FREQUENTLY ASKED QUESTIONS
What does the cancelBooking tool do?
:bookingUid can be :bookingUid of an usual booking, individual recurrence or recurring booking to cancel all recurrences.. It is categorised as a Other tool in the Cal.com MCP Server, which means it performs auxiliary operations.
How do I enforce a policy on cancelBooking?
Add a rule in your Intercept YAML policy under the tools section for cancelBooking. You can allow, deny, rate-limit, or validate arguments. Then run Intercept as a proxy in front of the Cal.com MCP server.
What risk level is cancelBooking?
cancelBooking is a Other tool with low risk. Read-only tools are generally safe to allow by default.
Can I rate-limit cancelBooking?
Yes. Add a rate_limit block to the cancelBooking rule in your Intercept policy. For example, setting max: 10 and window: 60 limits the tool to 10 calls per minute. Rate limits are tracked per agent session and reset automatically.
How do I block cancelBooking completely?
Set action: deny in the Intercept policy for cancelBooking. The AI agent will receive a policy violation error and cannot call the tool. You can also include a reason field to explain why the tool is blocked.
What MCP server provides cancelBooking?
cancelBooking is provided by the Cal.com MCP server (). Intercept sits as a proxy in front of this server to enforce policies before tool calls reach the server.
ENFORCE POLICIES ON CAL.COM
Open source. One binary. Zero dependencies.