FREE For Guesty hosts · Free and open source

Answer the 2 AM “where’s the lockbox?” text with one ask.

CohostSTR connects your AI assistant to your Guesty account. You ask in plain English and it does the Guesty work for you. It finds every guest still waiting on a reply, writes the arrival message with the door code and directions from your own listing, builds tomorrow’s turnover list and drafts your review replies. You approve every change before it happens.

  • Mornings: “Who’s waiting on me?” shows every unanswered guest, with a reply drafted for each.
  • Arrival day: the code, parking and directions come from your listing. Nothing is retyped from memory at midnight.
  • Turnover: tomorrow’s checkouts and check-ins, as a list ready to send your cleaner.
  • Reviews: replies drafted in your voice, and you hit send.

It works when you ask it, on your computer. Nothing runs on its own, and nothing sends without your OK.

MIT licensed Your keys stay on your machine Approval on every change
Claude · connected to GuestyIllustration
Works withClaude DesktopClaude CodeCursorVS CodeAny MCP client
The difference

One can read your Guesty account. This one can also make changes.

Guesty's official MCP (beta)

Looks things up

  • ✓Read reservations, listings, guests, calendar
  • ✕Send guest messages
  • ✕Update pricing & calendar
  • ✕Create & update reservations
  • ✕Tasks, expenses, reservation notes
  • ✕Webhooks
  • !Beta: "do not rely on it for any production use"

Based on Guesty's public documentation (updated August 22, 2026).

CohostSTR

Gets it done

  • ✓Read reservations, listings, guests, calendar
  • ✓Send guest messages
  • ✓Update pricing & calendar
  • ✓Create & update reservations
  • ✓Tasks, expenses, reservation notes
  • ✓Webhooks
  • ✓Versioned releases on npm · free, MIT
What it does

It does the work, not just the report.

Ask in plain English. Your AI reads Guesty, makes the change, and confirms it.

🛡️

Won't get your listing flagged

Messages containing a phone number, email, off-platform payment or a "book direct" nudge are held before they send, because Airbnb, Vrbo and Booking.com suspend listings for them.

"Text me at 555-… and pay by Venmo"held
"Check-in is at 4 PM, the door code arrives an hour before."sent
💬

Answer guests

Reads the thread and reservation, then replies through Guesty.

"Reply to the guest in the Loft asking about early check-in."
💵

Adjust pricing

Occupancy in, new rates out.

"Drop next month's half-empty weekends by 10%."
📅

Manage the calendar

Availability updated without opening the dashboard.

"Block the lake house Dec 24–26."
🧹

Dispatch tasks

Tasks, expenses and reservation notes on request.

"Cleaning task after tomorrow's checkout at Unit 4."
✅

Replies that stick to the facts

Drafts use your listing's real check-in time, access notes and house rules, and say "I'll check" instead of inventing an answer.

⭐

Stay on top of reviews & owners

Pull reviews across channels and draft the replies. Owner statements, revenue summaries and reservation financials on demand.

↩️

Bulk changes you can trust

"Raise December weekends 15% across all cabins." Your AI app asks before each change runs, so you approve every edit first.

How it works

Three steps from install to action.

No account with us. No license key. Your Guesty credentials stay on your computer.

Get your Guesty API keys

Create an Open API client ID and secret in your Guesty account. API access depends on your Guesty plan.

Add it to your AI app

Paste a few lines into Claude Desktop, Claude Code, Cursor or VS Code. It starts automatically with npx.

Ask in plain English

"Reply to tonight's arrivals with parking info." Your AI reads Guesty and makes the change.

Open source

Install free in about ten minutes.

Add this to your MCP client's config (Claude Desktop: Settings → Developer → Edit Config), then restart it.

claude_desktop_config.json
{
  "mcpServers": {
    "guesty": {
      "command": "npx",
      "args": ["-y", "cohoststr-mcp"],
      "env": {
        "GUESTY_CLIENT_ID": "your-client-id",
        "GUESTY_CLIENT_SECRET": "your-client-secret"
      }
    }
  }
}
Pricing

Free to install. Or get the setup kit and skip the afternoon.

The connector is free. The setup kit takes you from “what’s an API key?” to asking your AI “who’s waiting on me?” It comes with the workflows hosts use every day.

Open source

CohostSTR connector

$0
  • Works with Guesty. All 44 tools, read and write
  • Runs on your computer with your own Guesty API key
  • MIT licensed, free for good
Install free →
Setup kit

Get the setup kit

$149 one-time, 1-10 listings
$299 for 11-50 listings
  • A step-by-step setup guide, a 2-minute installer video and one command to run
  • Works with Guesty (via CohostSTR) or Hospitable (via its own AI connector). On Hospitable, guest messages are drafted for you to send
  • Our workflow pack: unanswered-guest sweep, arrival-day brief, cleaner turnover brief, open-nights report, weekly snapshot and review-reply drafts (Guesty)
  • Email support within 1 business day. Still stuck? We guide you through a screen-share. You type your own Guesty keys, and we never see them
  • Approval stays on, so nothing changes without your OK
  • Your API key stays on your machine. We never see or keep it
  • You connect CohostSTR with your own Guesty API access, under Guesty’s terms.
  • If we can't get it working within 14 days, full refund
  • One-time payment. Not a subscription
First 10 customers: 50% off with code FOUNDING10. We ask for honest feedback we may quote, good or bad.Any quote we publish says the customer received a founding discount. The discount does not depend on what you say.
Buy setup: $149 (1-10 listings) →Buy setup: $299 (11-50 listings) →Secure checkout by Stripe. Enter FOUNDING10 at checkout for the founding price.
Autopilot · Coming soon

Autopilot for Hospitable: join the waitlist

Replies to your guests from your own listing details. It starts in approval mode, so you OK each draft. Money, refunds, damage, complaints and date changes always wait for you. It runs on your computer with your own keys.

$19/mo
1-2 listings
$29/mo
3-5 listings
$6/listing/mo
6-20 listings, $36/mo minimum
Let’s talk
21+ listings: contact us

Requires a paid Hospitable plan (Host, Professional or Mogul). Hospitable’s free Essentials plan can’t connect apps. Not yet available to buy: we open sales once Hospitable approves our app. CohostSTR is not affiliated with or endorsed by Hospitable.

That didn't send, and we did not receive your details. Please email [email protected] instead.
You're on the Autopilot waitlist. We'll email you when it opens.

Setup kit: not ready to buy yet?

Leave your email and we'll send you the setup details and the founding code. No card needed.

That didn't send, and we did not receive your details. Please email [email protected] instead.
You're on the list. We'll email you the details.
FAQ

Common questions.

How is this different from Guesty's own MCP server?

Guesty's server is in beta and read-only: your AI can look up and summarize data but cannot create, update or delete anything. CohostSTR can also act: send guest messages, change pricing and availability, create reservations, tasks and expenses.

Is it really free?

Yes. The server is MIT-licensed open source and all 44 tools are free. The setup kit is a one-time payment, not a subscription, and the open-source server stays free. Autopilot for Hospitable (coming soon) will be a separate monthly plan.

Is it safe to let an AI change my Guesty account?

The server runs on your own computer with your own Guesty API credentials, which never pass through us. MCP clients such as Claude Desktop ask you to approve tool calls before they run, so you see each change before it happens.

Which AI apps does it work with?

Any app that supports MCP servers running locally: Claude Desktop, Claude Code, Cursor, VS Code and others.

What do I need from Guesty?

An Open API client ID and secret from your Guesty account. Open API access depends on your Guesty plan. You connect CohostSTR with your own Guesty API access, under Guesty’s terms.

Who makes it?

Built by a short-term-rental operator to run its own portfolio. It is independent and not affiliated with or endorsed by Guesty, Inc.

Stop clicking through dashboards. Just ask.