Prototype · Preview: every server in the official registry, synced every 30 minutes. Sign in with Google to write reviews.Prototype · updated every 30 min
PopNx MCPMCP servers for people who use AI · explained in plain words

voidjet empty legs

by voidjet.ioversion 1.1.0i★ –iRuns in the cloud
Registry nameio.voidjet/empty-legs

How to install

What it does

Search empty-leg private jet offers; prepare inquiries and alerts the user confirms by email.

  • Connects Runs in the cloud
  • Account or key No key needed
  • Category Chat & email

Install

Pick the AI app you use, then copy the settings.

Passed 2/3 checks · What you ask goes through the maker’s server (api.voidjet.io) · ✓ Commands checked Nov 13, 2026

First: which AI do you use?

Pick your app and the steps appear below.

Works with Claude · about 2 min

No key, nothing to install · Set it up once on claude.ai or the desktop app, then use it in chat · free accounts can add 1 · on Team/Enterprise an Owner adds it

  1. Open Claude’s Connectors page

    CustomizeConnectors

    CustomizeConnectors1Add2https://…3Add4
  2. Click “Add” → “Custom” → “Web” and fill in these 2 fields

    Copy each value into the field with the same name in Claude, then click Continue

    Name · Namevoidjet empty legs
    Remote MCP server URL · Addresshttps://api.voidjet.io/agent/mcp

    Click Continue past the sign-in settings Claude detected · under Authentication choose what the maker says (Sign in now, Sign in when needed or No sign in), then click Add

  3. Turn it on in a chat

    +Connectorsvoidjet empty legs

  4. Try it

    Use voidjet empty legs and tell me what you can do for me, then show me one thing

    ✓ If Claude says it is using voidjet empty legs or shows a voidjet empty legs tool in the answer, you are connected

Menu names checked against Anthropic’s help page on Nov 11, 2026 · your screen may differ slightly by app version

Works with ChatGPT, depending on your plan

Full MCP: ChatGPT Business, Enterprise or Edu on the web · Pro: connects with read/fetch permissions, so tools that change data may not work · Plus: not confirmed in OpenAI’s docs; if you see an add-custom-MCP option on the Plugins page you can try these steps · web only

  1. Open ChatGPT’s add-MCP page on the web

    Plugins+Add custom MCP server

    ChatGPTPlugins1+2https://…3Create4
  2. Fill in the name and address

    Enter a name, paste the address under Connection, tick the risk warning and click Create as a plugin

    Name · Namevoidjet empty legs
    Connection · Addresshttps://api.voidjet.io/agent/mcp
  3. Pick voidjet empty legs in a chat

    Start a new chat and pick voidjet empty legs from your plugins before typing

  4. Try it

    Use voidjet empty legs and tell me what you can do for me, then show me one thing

    ✓ If ChatGPT says it is using voidjet empty legs or shows a voidjet empty legs tool in the answer, you are connected

Menu names checked against OpenAI’s help page on Nov 11, 2026 · your screen may differ slightly by app version

Works with Claude Code · about 2 min

No key, nothing to install

  1. Open Terminal

    Mac: press Command+Space and type Terminal · Windows: open PowerShell

  2. Paste this command and press Enter

    claude mcp add --transport http --scope user empty-legs https://api.voidjet.io/agent/mcp
  3. Type /mcp in Claude Code

    You should see voidjet empty legs listed as connected

  4. Try it

    Use voidjet empty legs and tell me what you can do for me, then show me one thing

    ✓ If Claude Code says it is using voidjet empty legs or shows a voidjet empty legs tool in the answer, you are connected

Menu names checked against Anthropic’s help page on Nov 11, 2026 · your screen may differ slightly by app version

Works with Cursor · about 2 min

No key, nothing to install

  1. Click this button to open Cursor

    Open in Cursor

    Cursor asks you to confirm; click Install

  2. Open the AI chat in Cursor in Agent mode

  3. Try it

    Use voidjet empty legs and tell me what you can do for me, then show me one thing

    ✓ If Cursor says it is using voidjet empty legs or shows a voidjet empty legs tool in the answer, you are connected

Menu names checked against Cursor’s help page on Nov 11, 2026 · your screen may differ slightly by app version

Works with VS Code · about 2 min

No key, nothing to install

  1. Click this button to open VS Code

    Open in VS Code

    VS Code asks you to confirm; click Install

  2. Open the AI chat in VS Code in Agent mode

  3. Try it

    Use voidjet empty legs and tell me what you can do for me, then show me one thing

    ✓ If VS Code says it is using voidjet empty legs or shows a voidjet empty legs tool in the answer, you are connected

Menu names checked against VS Code’s help page on Nov 11, 2026 · your screen may differ slightly by app version

Other apps that use MCP, such as Windsurf, Zed or Gemini CLI, each add servers differently. See how in the app list.

See every app that uses MCP →

Address for apps that connect over the web

Addresshttps://api.voidjet.io/agent/mcp

JSON settings are under “For developers” below

Stuck? Ask people who use voidjet empty legs💬 Discussion →
For developers: Terminal commands and JSON settings

Over the web

Claude Code

claude mcp add --transport http --scope user empty-legs https://api.voidjet.io/agent/mcp

Cursor (~/.cursor/mcp.json)

{
  "mcpServers": {
    "empty-legs": {
      "url": "https://api.voidjet.io/agent/mcp"
    }
  }
}

VS Code (mcp.json)

{
  "servers": {
    "empty-legs": {
      "type": "http",
      "url": "https://api.voidjet.io/agent/mcp"
    }
  }
}

These settings are generated from the maker’s registry entry. If the README says otherwise, follow the README.

At a glance

Downloads per weeki
Not on npm/PyPI
Verified domain
✓ voidjet.io
Licencei
No licence stated
Connection
Runs in the cloud
Transport
streamable-http
Latest versioni
1.1.0
Published to registryi
Oct 11, 2026
Code last changedi
–
Maker
voidjet.io
Repo
–
Website
voidjet.io
Registry status
Active

Which apps can use it

Based on how this server connects and on each app’s own docs, checked Nov 10, 2026.

Connect over the internet in

ClaudeChatGPTGooseLM StudioMsty StudioCherry StudioCursorVS Code + GitHub CopilotVisual StudioWindsurf (Devin Desktop)ZedKiroClineContinueJetBrains AI AssistantClaude CodeCodex CLIGemini CLIOpenCodenodecodeWarpLibreChatOpen WebUIRaycast

All apps, with pros and cons →

Related guides

What it can do

Tool names and descriptions exactly as the server reported them on Nov 13, 2026. The maker wrote them, not us; we show them as plain text.

  • 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, aircraft, seats, indicative price, a voidjet link

  • 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.

  • get_service_info

    Returns voidjet's own answers to questions about costs, costs before a binding contract, contract partner, what happens after an inquiry, price binding, cancelled empty legs, how voidjet is funded, who receives the user's data and how fast providers reply. Use it instead of guess

  • 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 data. Helps voidjet decide what to add.

  • 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 within 48 hours. name, phone and message are o

  • 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; voidjet receives a fee from the partner. voidjet emai

  • 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, valid 7 days). Needs origin or destination

Basic checksi

We check information anyone can see; we have not read the code. Checks that do not apply are left out of the count. · Checked Nov 15, 2026

  • ! Caution

    Maker matches the repo

    The registry lists no source repo, so we cannot match the publisher (voidjet.io) to the code

  • … Not checked yet

    Still maintained

    We have not read this repo from GitHub yet

  • … Not checked yet

    Has a licence

    We have not read this repo from GitHub yet

  • ✓ Pass

    Endpoint responds

    Responded in 350 ms (HTTP 200)

  • – Not applicable

    Sign-in with OAuth

    No sign-in needed

  • ✓ Pass

    No hidden instructions in tool descriptions

    Read 7 tool descriptions and found no hidden instructions to the AI

What we check → · JSON

Makers: ask for a re-check or report wrong info

Discussion

Ask, share a tip or report that it does not work. Sorted by what people marked helpful.

No posts yet. Be the first to ask or share.

Posts here are written by users, not the PopNx team.

Sign in to post

User reviews

No reviews yet

Sign in to write a review

Compared with others in Chat & emaili

  • More stars than 0% of the other 2055 servers in this category
  • Published to the registry more recently than 43% of the other 2055 servers in this category
  • Basic checks equal to or better than 51% of the other 2055 servers in this category

Compared with every active server in this category in the registry. Stars count only when the publisher owns the repo.

Common questions

Is voidjet empty legs safe?

It passed 2 of 3 applicable basic checks. We have not read the code. Before adding a key or token, see what access the server asks for and use a key with only the permissions you need.

What keys or codes does it need?

The registry does not list a required key, though some servers ask you to sign in on first use.

Does it run on my computer or in the cloud?

It runs in the maker’s cloud. Connect over the internet with nothing to install, but what you send passes through the maker’s servers.

Is it still maintained?

The GitHub repo last changed –, and the latest version (1.1.0) reached the registry 35 days ago.

Which apps can use it?

Apps that support MCP, such as Claude Desktop, Claude Code, Cursor and VS Code. It connects by URL, so apps that accept remote MCP servers work too, such as ChatGPT on the web (full MCP on Business and above; Pro read-only).

What can I use instead?

In the same category: draw.io, Vexa, emailmd, Kite Discord Bot Builder, e2a — email for AI agents

Similar alternatives

Same category, other makers, commands already checked. Official ones first, then by stars.

Reading a card:↓ Downloads per weeki★ GitHub starsiThree pillars: reviews · checks · usageiUpdated = latest version published to the registryi

draw.io

Create draw.io diagrams in chat from Mermaid or XML, shown live and interactive. 10,000+ shapes.

by jgraphWidely used★ 5.8KUpdated 5 days ago

Runs in the cloud✓ service owner · draw.ioTried by the PopNx team

Vexa

Meeting bot and transcripts for Google Meet, Teams and Zoom. Live or after, speakers labelled.

by Vexa-aiWidely used★ 3KUpdated 2 months ago

Runs in the cloud✓ service owner · vexa.ai

emailmd

Render markdown into email-safe HTML, lint drafts for deliverability problems, and preview emails.

by anypostWidely used↓ 5.4K/wk★ 1.4KUpdated yesterday

Computer or cloud✓ service owner · emailmd.dev

Kite Discord Bot Builder

Build and fix Discord bots from a chat. Kite hosts them 24/7, with no code to deploy.

by merlinfuchsGrowing★ 334 Stars for the whole repoUpdated 18 days ago

Runs in the cloud✓ service owner · kite.onl

e2a — email for AI agents

Authenticated email gateway for AI agents — per-agent inboxes, HITL approval, SPF/DKIM verified.

by tokencanopyGrowing★ 199 Stars for the whole repoUpdated 4 months ago

Runs in the cloud✓ service owner · e2a.dev
  • draw.io — Runs in the cloud, nothing to install · No key needed
  • Vexa — Runs in the cloud, nothing to install · Needs a key
  • emailmd — Cloud or install on your computer · No key needed
  • Kite Discord Bot Builder — Runs in the cloud, nothing to install · No key needed
  • e2a — email for AI agents — Runs in the cloud, nothing to install · No key needed

README from the maker

No README found in the repo