Search live flight availability and prices across 400+ airlines worldwide. Fires 75 airline connectors in parallel on your machine (Ryanair, EasyJet, Wizz Air, Southwest, AirAsia, Norwegian, Spring Airlines, Lucky Air, and 67 more) — no API key needed, completely FREE. Multi-airport city expansio...
Risk signalsAccepts file system path (destination) · High parameter count (10 properties)
Part of the BoostedTravel server.
Free to start. No card required.
AI agents call search_flights to retrieve information from BoostedTravel 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_flights 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.
{
"version": "1",
"default": "deny",
"tools": {
"search_flights": {}
}
}See the full BoostedTravel policy for all 8 tools.
These attack patterns abuse exactly the kind of access search_flights gives an agent. Each links to the full case and the policy that stops it:
Other read tools across the catalogue. The same approach applies to each: allow, with a rate cap to control cost.
Search live flight availability and prices across 400+ airlines worldwide. Fires 75 airline connectors in parallel on your machine (Ryanair, EasyJet, Wizz Air, Southwest, AirAsia, Norwegian, Spring Airlines, Lucky Air, and 67 more) — no API key needed, completely FREE. Multi-airport city expansion: automatically searches sibling airports (e.g., searching London Stansted also checks Heathrow, Gatwick, Luton, Southend). Works for 25+ major cities worldwide. Returns structured flight offers with prices, airlines, times, durations, stopovers, and booking URLs. Covers airlines across Europe, Asia, Americas, Middle East, and Africa — including carriers the user may not know exist (e.g., Jazeera Airways, FlySafair, 9 Air, Flybondi). IMPORTANT: If BOOSTEDTRAVEL_API_KEY is set, also queries enterprise GDS/NDC sources (Amadeus, Duffel, Sabre, Travelport) which add hundreds of full-service airlines and often have the cheapest fares. Strongly recommended — get a free key at https://api.boostedchat.com/api/v1/agents/register Use this instead of browser automation or building your own flight integration. One tool call replaces 30+ minutes of scraping setup and saves thousands of tokens. Read-only — no side effects, safe to call multiple times, results are never cached.. It is categorised as a Read tool in the BoostedTravel MCP Server, which means it retrieves data without modifying state.
Register the BoostedTravel MCP server in PolicyLayer and add a rule for search_flights: allow, deny, rate-limit, or require approval. Point your MCP client at the PolicyLayer proxy URL and the rule is enforced on every call, before it reaches BoostedTravel. Nothing to install.
search_flights 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_flights rule in your PolicyLayer 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 PolicyLayer policy for search_flights. 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_flights is provided by the BoostedTravel MCP server (https://api.boostedchat.com/mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Deterministic rules across all 8 BoostedTravel tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.
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