ATAbooking
com.atabooking/mcpatabooking.comstreamable-httpv0.1.0Scanned
Book hotels direct through your AI, for a 5% fee. Demo: sample hotels, no real bookings yet.
5 tools: 3 change things and 2 only read.
- Reads private data · 0
- Reads text others write · 2
- Can send data out · 0
- No findings
Anlyon alternative
3 of these tools change something. Run those as governed actions.
Declare what an action changes, and Anlyon puts it under a shared limit, binds every approval to the exact request, and grades the outcome. It works on any HTTPS API you can describe as an action.
Anlyon does not run, proxy or govern this MCP server. A tool your own code calls directly is not routed through Anlyon and is not governed by it.
Import an OpenAPI spec →Tools
Grouped by what each tool does, most consequential first. Open one for its reasons and full description; descriptions are the publisher's own words.
5 tools
Changes things 3Claude Code: ask
book_directPlaces a 15-minute HOLD on the room and emails the guest a 6-digit code.Reads text others writeNo findings
Why it is in this group
- Nothing in its name or description says what it does, so it is counted as a write.
What it can reach
- untrusted-inputThe server marks it openWorldHint: true: it reaches things outside the server's own data.
Description, as the server wrote it Places a 15-minute HOLD on the room and emails the guest a 6-digit code. Nothing is booked and nothing reaches the hotel until the guest confirms. After calling, tell the guest: check your email (the result shows the masked address), then either read the code back to you (call confirm_booking) or click Confirm in the email. Send an idempotency_key and reuse it if you retry. Confirm name, email, dates and price with the guest before calling. Demo hotels (demo: true) confirm at once and send no email.
Annotations the server declares
- readOnlyHint: false
- destructiveHint: false
- idempotentHint: true
- openWorldHint: true
check_availabilityRe-check one room for exact dates and guests right before booking.No findings
Why it is in this group
- Nothing in its name or description says what it does, so it is counted as a write.
- The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
Description, as the server wrote it Re-check one room for exact dates and guests right before booking. Returns available yes/no and the live quote. Demo hotels are marked demo: true.
Annotations the server declares
- readOnlyHint: true
- destructiveHint: false
- idempotentHint: true
- openWorldHint: false
confirm_bookingConfirm a held booking with the 6-digit code the guest received by email.Reads text others writeNo findings
Why it is in this group
- The input takes a statement or command to run (input.code), which can change anything it can reach.
What it can reach
- untrusted-inputThe server marks it openWorldHint: true: it reaches things outside the server's own data.
Description, as the server wrote it Confirm a held booking with the 6-digit code the guest received by email. Only use a code the guest gave you. Five wrong codes cancel the hold. Confirming twice returns the same booking.
Annotations the server declares
- readOnlyHint: false
- destructiveHint: false
- idempotentHint: true
- openWorldHint: true
Only reads 2Show 2 read-only tools
get_stayRooms, prices, what's included, check-in/out times and cancellation terms for one stay.No findings
Why it is in this group
- The name "get_stay" says "get": a word for reading.
Description, as the server wrote it Rooms, prices, what's included, check-in/out times and cancellation terms for one stay. Demo hotels are marked demo: true.
Annotations the server declares
- readOnlyHint: true
- destructiveHint: false
- idempotentHint: true
- openWorldHint: false
search_staysFind hotels with a room free for the dates and guests.No findings
Why it is in this group
- The name "search_stays" says "search": a word for reading.
Description, as the server wrote it Find hotels with a room free for the dates and guests. Returns each stay's cheapest fitting room with a quote (price, ATA fee 5%, typical 15-20% OTA cut). Demo hotels are marked demo: true.
Annotations the server declares
- readOnlyHint: true
- destructiveHint: false
- idempotentHint: true
- openWorldHint: false
This is not a safety rating, and no finding is not a safety guarantee. The groups and findings come from fixed checks of the tool definitions the server returned on the date shown, not from its code or what it does when called. How the checks work.
Exfil surface
Which tools read private data, which read text someone else can write, and which can send data out. One of each is a path a prompt injection can use.
No private-data, untrusted-input, outbound path in this server alone: no tool is tagged private-data or outbound.
- Reads private data0
- Reads files, mail, messages, databases, secrets, calendars or repositories.
- Reads text others write2
- Brings in text someone else can write: web pages, inbound email, messages, issues and comments.
- Can send data out0
- Can carry data to people or systems: it sends, posts or publishes, or takes a recipient, channel or URL.
Other servers in the same agent add their own tools to these paths. Audit your whole setup to see them together.
Findings
Matches of fixed checks, with the text they matched.
No check matched anything in these tool definitions. That is not a safety guarantee.
History
Changes to its tool definitions and to its remote endpoint, newest first.
No change seen yet. Its tools are rescanned every day, and a remote endpoint is looked at once a week.
Install
Pinned to version 0.1.0. Values in angle brackets are yours to fill in.
claude mcp add --transport http atabooking https://atabooking.com/mcpclaude mcp add --transport http atabooking https://atabooking.com/mcpRun in a terminal.
Claude Code permissions
Allow the reads, ask before a change or a way out, deny the deletes. Paste into .claude/settings.json.
{
"permissions": {
"allow": [
"mcp__atabooking__search_stays",
"mcp__atabooking__get_stay"
],
"ask": [
"mcp__atabooking__check_availability",
"mcp__atabooking__book_direct",
"mcp__atabooking__confirm_booking"
],
"deny": []
}
}Tools that only read are allowed, tools that change things ask first, tools that delete or cancel are denied. A read that can send data out (it takes a URL, say) asks first too. It assumes the server is installed as atabooking. Review it before you use it.
Capability tags behind 2 rules
- mcp__atabooking__book_direct untrusted-input
- mcp__atabooking__confirm_booking untrusted-input
Pin
Keep the decision: fail CI when the tools change, follow every change, or show a badge.
Pin in CI
Fail a build when the tools you reviewed are not the tools the server serves today.
curl -s "https://anlyon.dev/api/v1/servers/com.atabooking/mcp/verify?hash=cbc144802c48f715fe6b20781355b8b95c80010a966f3b96f97bb194e077238d" | jq -e '.changed == false'Pinned hash cbc144802c48, from Nov 1, 2026, 11:18 UTC.
Watch
Get told when its tools change: a new tool, a new description, a new class.
https://anlyon.dev/servers/com.atabooking/mcp/changes.xmlAn Atom feed. Works in any feed reader or Slack's RSS app.
Badge
[](https://anlyon.dev/servers/com.atabooking/mcp)Source: MCP Registry. Synced Nov 1, 2026, 11:17 UTC.