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Stay Otter MCP server

Which MCP servers are Stay Otter's own, from the official registry and from asking its own domain, whether they answer, and what they offer. A program checked each of these, nobody copied them from a product page.

read 2026-10-28

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Whose server it is
  • Registry namecom.stayotter/stay-otterverified in the MCP registry

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

When we asked itchecked 2026-10-28
  • Stateanswerschecked 2026-10-28
  • Tools9
  • Server calls itselfstay-otter
  • Server version1.3.1
  • Protocol version2025-06-18

On 2026-10-28 the server answered initialize and tools/list without a sign-in. First answer in 325 ms.

Should an agent connect itConnect it, with care
  • Its tools do every use case we checked: check a street's noise and nearby bars before booking; get alerts when a verified stay's price drops.

Once connected

  • For "check a street's noise and nearby bars before booking", the likely first call is check_listing.
  • set_alert change data without a sign-in: anyone with the address can call them.
  • Parameters are untyped or undescribed in 6 of 9 tools: check arguments before calling.

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.

Measured dailydaily checks: 8, the first on 2026-10-28
  • INITE MCP score78 of 100answers 100 · does the job 100 · definitions 89 · context 100 · connects 100 · lowered by the warning signs below
  • What an agent can do with it2 of 2 use cases
  • Answered100% of days8 of 8 daily checks
  • Median first answer274 ms
  • Space in an agent's context≈ 2,926 tokensthe definitions of all its tools (9), which an agent carries on every turn
  • Tool definitionsB · 89 of 100
  • Typed results0 of 9 toolsdeclared outputSchema: results come typed, read once
  • Parameters without a description: in 6 of 9

What an agent can do with it

  • not sure · compare all-in totals for hotels and rentals on your dates
  • can do · check a street's noise and nearby bars before booking
  • can do · get alerts when a verified stay's price drops

Each of the product's use cases, put to Jev against this server's tool list: can an agent do it with these tools?

Worth a look

  • Tools that change data, on a server that answers without a sign-in: set_alert

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 →

Tools it offers9 tools · read 2026-10-28
  • search_stays

    Live search of Booking.com, Vrbo and Expedia (hotel rooms) for the dates and party, verified against the map. Returns up to three picks (best overall, best value, closest) with receipts and tracked openUrl links. Takes 30 to 90 seconds…

  • get_stay

    The card for a search by searchId: finished picks with receipts, or its running status. Free and instant. Use it to finish a search_stays call that returned 'running', or to read a shared stay (https://stayotter.com/stay/s_…). Each pick's…

  • city_picks

    Instant and free: the latest finished standard search for one of the covered cities, about six weeks out, refreshed on a rota: whole homes for two adults and five nights in most cities, a six-adult weekend in New Orleans, Miami, Las…

  • get_activities

    Top-rated things to do on Viator for a search's spot and dates (what the trip is for first, the city's best otherwise), with a second place to look when the row is thin. Pass a searchId from search_stays or city_picks; intent overrides…

  • set_alert

    Starts the otter's daily re-run of a finished search, emailing the key's account when a verified pick drops 5% or $50 or the cheapest pick disappears. Needs a key (stayotter.com/connect); the first alert is free with an account, more are…

  • check_listing

    Reads one place the traveller found themselves into the receipts a pick carries: where it is, whether the street is quiet or lively, bars, cafés and restaurants within a ten-minute walk, the distance to a spot they name and, with dates…

  • watch_booking

    For a stay already booked with free cancellation: pass the confirmation email's text. The otter keeps five facts (property, dates, total paid, deadline, where it was booked), discards the rest (no names, confirmation numbers or card…

  • get_block

    Ground intelligence for one stay from a finished search: every bar and pub, café, restaurant and grocery within a ten-minute walk (counts, with + when the map read was capped in a dense centre), the nearest stop and the walk to it, and…

  • watch_similar_homes

    For a whole home already booked (watch_booking, then the first morning's read found the nights taken by the traveller): watches other verified whole homes nearby for the same dates and party, and emails the account when one comes in at…

How to connect

Add the server to your MCP client config. Claude Desktop, Cursor and most other clients read this shape:

{
  "mcpServers": {
    "stay-otter": {
      "type": "http",
      "url": "https://stayotter.com/api/mcp"
    }
  }
}

Add it

Claude Code, in a terminal

claude mcp add --transport http stayotter https://stayotter.com/api/mcp

Add to CursorAdd to VS Code

claude.ai, ChatGPT and other clients: add https://stayotter.com/api/mcp as a custom connector in the settings.

Each line is something a program found when it went looking: the registry entry, the server's own answer, a spec that parses. A missing line means we did not find it, not that it does not exist.