voidjet MCP server

• Registry nameio.voidjet/empty-legsverified in the MCP registry

The registry name sits under voidjet.io. The registry only lets a publisher use that namespace after proving control of the domain through DNS or HTTP.

• Stateanswerschecked 2026-10-27
• Tools6
• Server calls itselfvoidjet
• Server version1.0.0
• Protocol version2025-06-18

On 2026-10-27 the server answered initialize and tools/list without a sign-in. First answer in 510 ms.

• Its tools do every use case we checked: search today's empty-leg private jet flights by route; find flights departing from a chosen city.

Said by rules from the measurements above. The likely first call is a model's pick from the tool list; read its description before relying on it.

• INITE MCP score77 of 100answers 100 · does the job 100 · definitions 83 · context 100 · connects 100 · lowered by the warning signs below
• What an agent can do with it2 of 2 use cases
• Answered100% of days9 of 9 daily checks
• Median first answer516 ms
• Space in an agent's context≈ 2,549 tokensthe definitions of all its tools (7), which an agent carries on every turn
• Tool definitionsB · 83 of 100
• Typed results7 of 7 toolsdeclared outputSchema: results come typed, read once

• Parameters without a description: in 7 of 7

A program checks the server once a day: initialize and tools/list, no model. Tokens are the definitions' length at about four characters a token. The grade averages six checks of every tool's name, description, schema and annotations; it says how well the tools are described, not whether they work. The score weighs what was measured and nothing else: answering (25%), doing the product's job (25%), definitions (20%), context (10%), use (10%) and how readily a client connects (10%). A part that was not measured is left out, and a hidden instruction caps the score at 40. The state of vendors' MCP servers: method and numbers →

• search_empty_legs

  Finds current empty-leg flights by origin and/or destination (city, IATA/ICAO code, country, US state, region or area such as Greek Islands), dates, passengers, budget and aircraft class. Returns up to 20 offers with route, date…

• get_empty_leg

  Current details of one offer by the ref returned by search_empty_legs. available=false means the offer is no longer listed.

• report_unmet_need

  Records a need voidjet cannot serve, for when the user wants voidjet to know about it: e.g. no offer on the route, a return flight, pets, instant booking. Takes 1-5 categories and optional route, dates, passengers and budget; no personal…

• request_inquiry

  Prepares an inquiry for one offer, for when the user has asked to inquire and given their email. voidjet emails the user a link; nothing is forwarded to the provider until the user opens it and sends the pre-filled form on voidjet.io…

• request_charter_quote

  Requests confirmed charter prices from partner Villiers for the route of a charter_alternative, for when the user has seen its price range, asked for confirmed prices and given their email. NOT an empty leg: a regular charter and a paid…

• create_flight_alert

  Sets up an email alert for new empty legs on a route or from a place, for when the user asks to be notified and gives their email. voidjet emails a confirmation link; the alert becomes active only after the user clicks it (double opt-in…