Find the cheapest travel dates for a route. Provide origin/destination airports and target month/date. Returns price calendar showing best dates to travel. Supports V1 price trends (daily cheapest non-stop/one-stop/two-stop flights) and V2 matrix views. Optional: trip length, flight class, calend...
Accepts file system path (destination); High parameter count (14 properties)
Part of the Flight Search MCP Server MCP server. Enforce policies on this tool with Intercept, the open-source MCP proxy.
AI agents call search_calendar to retrieve information from Flight Search MCP Server without modifying any data. This is common in research, monitoring, and reporting workflows where the agent needs context before taking action. Because read operations don't change state, they are generally safe to allow without restrictions -- but you may still want rate limits to control API costs.
Even though search_calendar only reads data, uncontrolled read access can leak sensitive information or rack up API costs. An agent caught in a retry loop could make thousands of calls per minute. A rate limit gives you a safety net without blocking legitimate use.
Read-only tools are safe to allow by default. No rate limit needed unless you want to control costs.
tools:
search_calendar:
rules:
- action: allowSee the full Flight Search MCP Server policy for all 4 tools.
Agents calling read-class tools like search_calendar have been implicated in these attack patterns. Read the full case and prevention policy for each:
Other tools in the Read risk category across the catalogue. The same policy patterns (rate-limit, allow) apply to each.
Find the cheapest travel dates for a route. Provide origin/destination airports and target month/date. Returns price calendar showing best dates to travel. Supports V1 price trends (daily cheapest non-stop/one-stop/two-stop flights) and V2 matrix views. Optional: trip length, flight class, calendar type.. It is categorised as a Read tool in the Flight Search MCP Server MCP Server, which means it retrieves data without modifying state.
Add a rule in your Intercept YAML policy under the tools section for search_calendar. You can allow, deny, rate-limit, or validate arguments. Then run Intercept as a proxy in front of the Flight Search MCP Server MCP server.
search_calendar is a Read tool with low risk. Read-only tools are generally safe to allow by default.
Yes. Add a rate_limit block to the search_calendar 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.
Set action: deny in the Intercept policy for search_calendar. 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.
search_calendar is provided by the Flight Search MCP Server MCP server (gvzq/flight-mcp). Intercept sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Open source. One binary. Zero dependencies.
npx -y @policylayer/intercept