Global scheduled passenger flight routes: which exist, direct or connecting, and days flown.
air-routes.com is a remote MCP server published at air-routes.com. 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 342 ms, placing it among the faster endpoints. It offers a narrow, focused set of 4 tools. On the protocol side it still runs 2025-11-25 and has not moved to the newer spec.
Can an LLM agent pick the right tool here — names, descriptions and parameter clarity are assessed.
find_connections — Name doesn't clarify connection type (direct/indirect)airport_destinations — Description cut-off mid-sentenceroute_detail — Description cut-off mid-sentenceresolve_airport — No mention of handling ambiguous queries in descriptiontools/list structure, inputSchema validity, and a functional smoke test — the components of the 0-100 score.
Tools the server advertised in the latest measurement — measured, not catalog-claimed.
find_connectionsFind flight connections between two airports (airport codes). Returns the fewest-stops tier that has any option: direct if available, else one-stop, else two-stop (up to max_stops), never a mix. Options sort by flying time; layover tiers cap at 7. Charter flights (tour-operator capacity, not bookable seat-only with the airline) are excluded unless include_charter=true, and never appear inside multi-leg itineraries. Data: scheduled passenger routes operating now, with seasonality labels — not fares, not booking, not date-specific schedules.
from_airportstringrequiredto_airportstringrequiredmax_stopsintegermax_flying_minintegerinclude_charterbooleanairport_destinationsList every direct flight from an airport (airport code), with full schedule detail per destination: airlines, schedule (day + times), flying_min, seasonality, booking URL. Prefer this over N× route_detail when planning from one hub. Data: scheduled passenger routes operating now, with seasonality labels — not fares, not booking, not date-specific schedules.
airportstringrequiredinclude_charterbooleanresolve_airportResolve a free-text city or airport name to airport codes (e.g. 'london' → LHR, LGW, STN, LTN, LCY). Use before other tools when the user gives city names. airport_code is the 3-letter IATA airport code.
querystringrequiredroute_detailDetail for one route (e.g. 'OTP-BCN'): airlines, schedule and seasonality. Data: scheduled passenger routes operating now, with seasonality labels — not fares, not booking, not date-specific schedules.
route_idstringrequiredinclude_charterbooleanDerived by comparing consecutive probes — changes in era, protocol version, build and reachability.
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Days in the current UTC month
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Days in current UTC month
| Run | Era | Modern | ms | Legacy | ms | Versions |
|---|---|---|---|---|---|---|
| 2026-09-13 01:33:33 | Legacy | 400 | 309 | 200 | 310 | 2025-11-25 |
| 2026-09-12 23:31:36 | Legacy | 400 | 345 | 200 | 341 | 2025-11-25 |
| 2026-09-12 21:29:15 | Legacy | 400 | 403 | 200 | 394 | 2025-11-25 |
| 2026-09-12 19:27:29 | Legacy | 400 | 328 | 200 | 320 | 2025-11-25 |
| 2026-09-12 17:24:09 | Legacy | 400 | 366 | 200 | 347 | 2025-11-25 |
| 2026-09-12 15:21:42 | Legacy | 400 | 342 | 200 | 333 | 2025-11-25 |
Each block is one measurement round. Green: working response. Amber: responded but the server was returning errors (5xx). Red: no response at all.
Each cell is one probe run. Faded cells are incomplete probes — one leg did not answer, so the era is inconclusive.
The two probe legs separately: modern server/discover and legacy initialize.
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