Uptime (30d)%100.0

Latency (p50)1738 msfaster than 5% of servers

Protocol eradual

Tools1

Flightcat

Description

Search flights by flexible dates and broad destinations, with live prices and booking links.

What our measurements say

Flightcat is a remote MCP server published at mcp.flightcat.io. It has been probed 6 times since 9/12/2026. It answered in 6 of them (100.0%), a near-uninterrupted record. Median response time is 1,738 ms, a delay an agent will notice. It offers a narrow, focused set of 1 tools. On the protocol side it speaks the 2026-07-28 stateless spec.

Dual-era2026-07-28 ✓Website ↗Version: 1.1.0First probe: 2026-09-12 15:21:42Last probe: 2026-09-13 01:33:33

Agent readability score

Can an LLM agent pick the right tool here — names, descriptions and parameter clarity are assessed.

Agent readability score

Flightcat's tool has clear intent but lacks parameter clarity and error handling.based on measured tool list

Strengths

Tool name 'search_flights' clearly indicates its purpose.
Description effectively explains use cases for flexible date and destination searches.

Weaknesses

Multiple parameters have undefined types (e.g., passengers, cabins, max_stops).
No error handling or constraint documentation in the tool description.
Ambiguous parameter definitions hinder proper implementation.

search_flights — Parameter 'passengers' has undefined type
search_flights — Parameter 'cabins' has undefined type
search_flights — Parameter 'max_stops' has undefined type
search_flights — Parameter 'max_price' has undefined type
search_flights — Parameter 'flight_duration' has undefined type
search_flights — Parameter 'connecting_airports' has undefined type
search_flights — Parameter 'bags' has undefined type

Verdict

While the tool's purpose is clear, the lack of parameter type definitions and error handling significantly reduces usability. The agent would struggle with implementation details despite the well-explained use case.

9/12/2026, 10:20:19 PM

Event narrative

Supported versions

2026-07-28

as declared by server/discover + initialize

Capabilities

resources, tools

Schema score

100

1 tools

Schema compliance

tools/list structure, inputSchema validity, and a functional smoke test — the components of the 0-100 score.

100/100

Excellent1 tools

tools/list schema valid
inputSchema is valid JSON Schema
Smoke test not run this round
Cold-start: cold 46ms → warm 42ms (penalty 4ms)

Tools

Tools the server advertised in the latest measurement — measured, not catalog-claimed.

search_flights9 params · 9 required
Search live public airfare, including requests with vague or broad location names and flexible dates. Resolves locations and dates, then returns and displays up to 10 itineraries in an interactive comparison with prices, schedules, stops, and booking links.
- search_typestringrequired
- passengersrequired
- cabinsrequired
- max_stopsrequired
- max_pricerequired
- flight_durationrequired
- connecting_airportsrequired
- bagsrequired
- tripsarrayrequired

Availability history

Event log

Derived by comparing consecutive probes — changes in era, protocol version, build and reachability.

12 hours agoAdded to watch — era: Dual-era

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Markdown

[![mcpmetrics](https://mcpmetrics.io/badge/io.flightcat/flightcat/era.svg)](https://mcpmetrics.io/servers/io-flightcat-flightcat)

HTML

<a href="https://mcpmetrics.io/servers/io-flightcat-flightcat"><img src="https://mcpmetrics.io/badge/io.flightcat/flightcat/era.svg" alt="mcpmetrics"></a>

Raw observations

You are seeing the last 7 days. Sign up for the full history. Which check failed and why is in the dashboard.

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Search hotels & rentals: live prices & reviews across Booking.com, Airbnb, Vrbo & Google Hotels.
Free Google Flights MCPserver.smithery.ai
Free real-time Google Flights search — one-way and round-trip — with no API key and no signup. ### What it returns - Live fares with airline, stops, duration and a bookable link - **Google's own price insights** (`price_insights_low` / `price_insights_high`) plus a low / typical / high verdict, so an agent can tell the user whether a fare is actually a good deal — most flight APIs don't expose this at all - Round-trip priced as **paired legs**, not two one-ways stitched together ### Flexible dates in a single call Pass a departure date range and/or several destinations, and the server fans out internally and merges the results. *"Cheapest flight to Sri Lanka anywhere in October"* is **one** tool call, not thirty. Every response carries `search_coverage` stating exactly which dates were searched, so a sampled scan is never mistaken for an exhaustive one. ### Tools | Tool | What it does | | --- | --- | | `search_oneway_flights` | One-way search — a single date, or a date range | |
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Premium agentic endpoint for booking-hotel-prices-mcp.
CHEAP_FLIGHTS_MCPcheap-flights-mcp-zp1q.onrender.com
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Google Flights Search (Real-Time Fares)flights.flightpowers.com
Real-time Google Flights: one-way and round-trip fares over date ranges, with price verdicts.

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https://mcp.flightcat.io/mcp

Run	Era	Modern	ms	Legacy	ms	Versions
2026-09-13 01:33:33	Dual-era	200	1396	200	1478	2026-07-28
2026-09-12 23:31:36	Dual-era	200	1493	200	1512	2026-07-28
2026-09-12 21:29:15	Dual-era	200	2129	200	2069	2026-07-28
2026-09-12 19:27:29	Dual-era	200	1808	200	1657	2026-07-28
2026-09-12 17:24:09	Dual-era	200	1739	200	1738	2026-07-28
2026-09-12 15:21:42	Dual-era	200	1778	200	1604	2026-07-28

Flightcat

Description

What our measurements say

Agent readability score

Agent readability score

Strengths

Weaknesses

Verdict

Event narrative

Schema compliance

Tools

Availability history

Event log

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Raw observations

Era history

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