1stay

Hotel Details

get_hotel_details

Read-only

Get rates and room details for exactly one room at a specific hotel. Returns room types, live rates, amenities, cancellation policies, and rate_codes required by book_hotel.

Guest pays the hotel directly. Displayed totals include taxes and any applicable, itemized 1Stay Booking Fee. Loyalty points eligible.

Room type notes: "Run of house" means the hotel assigns the room at check-in. "Suite" at select-service brands usually means a larger room with a sofa, not a separate bedroom.

Input Schema

TableJSON Schema

Name	Required	Description
`rooms`	No	Number of rooms. 1Stay currently supports exactly one room per search and reservation; omit this field or set it to 1.
`guests`	No	Number of guests, 1-10 (default 2)
`check_in`	Yes	Check-in date in YYYY-MM-DD format (e.g. 2026-05-06)
`hotel_id`	Yes	Hotel ID from search results
`check_out`	Yes	Check-out date in YYYY-MM-DD format (e.g. 2026-05-07)
`accessible`	No	When true, returns accessible (ADA) room types instead of standard ones. Default false because hotels list many near-identical accessible variants. The response always reports accessible_rooms_available.

Output Schema

TableJSON Schema

Name	Required	Description	Default
`stay`	No
`hotel`	Yes
`rooms`	Yes
`message`	No
`next_step`	No
`availability_status`	No
`accessible_rooms_note`	No
`rate_quote_expires_at`	No
`rate_quote_ttl_seconds`	No
`accessible_rooms_available`	Yes

Schema Changelog

Changes observed during successful MCP inspections.

Changed3 schema fields changedSep 24, 2026

changedInput schema / properties / guests / description

Previous value: -"Number of guests (default 2)"New value: +"Number of guests, 1-10 (default 2)"

changedInput schema / properties / guests / maximum

Previous value: -9007199254740991New value: +10

changedInput schema / properties / guests / minimum

Previous value: --9007199254740991New value: +1

Changed50 schema fields changedSep 19, 2026

changedInput schema / $schema

Previous value: -"http://json-schema.org/draft-07/schema#"New value: +"https://json-schema.org/draft/2020-12/schema"

removedInput schema / additionalProperties
```
Removed value: -false
```

changedInput schema / properties / check_in / description

Previous value: -"Check-in date in YYYY-MM-DD format (e.g. 2026-05-06), no more than 340 days from today"New value: +"Check-in date in YYYY-MM-DD format (e.g. 2026-05-06)"

addedInput schema / properties / guests / maximum
```
Added value: +9007199254740991
```
addedInput schema / properties / guests / minimum
```
Added value: +-9007199254740991
```
removedInput schema / properties / rooms / const
```
Removed value: -1
```
addedInput schema / properties / rooms / maximum
```
Added value: +9007199254740991
```
addedInput schema / properties / rooms / minimum
```
Added value: +-9007199254740991
```

changedInput schema / properties / rooms / type

Previous value: -"number"New value: +"integer"

changedOutput schema / $schema

Previous value: -"http://json-schema.org/draft-07/schema#"New value: +"https://json-schema.org/draft/2020-12/schema"

addedOutput schema / properties / accessible_rooms_available / maximum
```
Added value: +9007199254740991
```
addedOutput schema / properties / accessible_rooms_available / minimum
```
Added value: +-9007199254740991
```

addedOutput schema / properties / accessible_rooms_note / anyOf

Added value: +[
+  {
+    "type": "string"
+  },
+  {
+    "type": "null"
+  }
+]

removedOutput schema / properties / accessible_rooms_note / type
```
Removed value: -[
-  "string",
-  "null"
-]
```

addedOutput schema / properties / hotel / properties / address

Added value: +{
+  "additionalProperties": false,
+  "properties": {
+    "city": {
+      "anyOf": [
+        {
+          "type": "string"
+        },
+        {
+          "type": "null"
+        }
+      ]
+    },
+    "country": {
+      "anyOf": [
+        {
+          "type": "string"
+        },
+        {
+          "type": "null"
+        }
+      ]
+    },
+    "line1": {
+      "anyOf": [
+        {
+          "type": "string"
+        },
+        {
+          "type": "null"
+        }
+      ]
+    },
+    "line2": {
+      "anyOf": [
+        {
+          "type": "string"
+        },
+        {
+          "type": "null"
+        }
+      ]
+    },
+    "postal_code": {
+      "anyOf": [
+        {
+          "type": "string"
+        },
+        {
+          "type": "null"
+        }
+      ]
+    },
+    "state": {
+      "anyOf": [
+        {
+          "type": "string"
+        },
+        {
+          "type": "null"
+        }
+      ]
+    }
+  },
+  "required": [
+    "line1",
+    "line2",
+    "city",
+    "state",
+    "postal_code",
+    "country"
+  ],
+  "type": "object"
+}

addedOutput schema / properties / hotel / properties / amenities
```
Added value: +{
+  "items": {},
+  "type": "array"
+}
```

addedOutput schema / properties / hotel / properties / chain / anyOf

Added value: +[
+  {
+    "type": "string"
+  },
+  {
+    "type": "null"
+  }
+]

removedOutput schema / properties / hotel / properties / chain / type
```
Removed value: -[
-  "string",
-  "null"
-]
```

addedOutput schema / properties / hotel / properties / check_in_time / anyOf

Added value: +[
+  {
+    "type": "string"
+  },
+  {
+    "type": "null"
+  }
+]

removedOutput schema / properties / hotel / properties / check_in_time / type
```
Removed value: -[
-  "string",
-  "null"
-]
```

addedOutput schema / properties / hotel / properties / check_out_time / anyOf

Added value: +[
+  {
+    "type": "string"
+  },
+  {
+    "type": "null"
+  }
+]

removedOutput schema / properties / hotel / properties / check_out_time / type
```
Removed value: -[
-  "string",
-  "null"
-]
```

addedOutput schema / properties / hotel / properties / description

Added value: +{
+  "anyOf": [
+    {
+      "type": "string"
+    },
+    {
+      "type": "null"
+    }
+  ]
+}

addedOutput schema / properties / hotel / properties / name / anyOf

Added value: +[
+  {
+    "type": "string"
+  },
+  {
+    "type": "null"
+  }
+]

removedOutput schema / properties / hotel / properties / name / type
```
Removed value: -[
-  "string",
-  "null"
-]
```
addedOutput schema / properties / hotel / properties / photos / items / properties / description / anyOf
```
Added value: +[
+  {
+    "type": "string"
+  },
+  {
+    "type": "null"
+  }
+]
```
removedOutput schema / properties / hotel / properties / photos / items / properties / description / type
```
Removed value: -[
-  "string",
-  "null"
-]
```

changedOutput schema / properties / hotel / required

Previous value: -[
-  "hotel_id",
-  "photos"
-]New value: +[
+  "hotel_id",
+  "address",
+  "amenities",
+  "photos"
+]

addedOutput schema / properties / rate_quote_expires_at / anyOf

Added value: +[
+  {
+    "type": "string"
+  },
+  {
+    "type": "null"
+  }
+]

removedOutput schema / properties / rate_quote_expires_at / type
```
Removed value: -[
-  "string",
-  "null"
-]
```

changedOutput schema / properties / rate_quote_ttl_seconds / anyOf

Previous value: -[
-  {
-    "type": "integer"
-  },
-  {
-    "type": "null"
-  }
-]New value: +[
+  {
+    "maximum": 9007199254740991,
+    "minimum": -9007199254740991,
+    "type": "integer"
+  },
+  {
+    "type": "null"
+  }
+]

addedOutput schema / properties / rooms / items / properties / bed_type / anyOf

Added value: +[
+  {
+    "type": "string"
+  },
+  {
+    "type": "null"
+  }
+]

removedOutput schema / properties / rooms / items / properties / bed_type / type
```
Removed value: -[
-  "string",
-  "null"
-]
```

addedOutput schema / properties / rooms / items / properties / description / anyOf

Added value: +[
+  {
+    "type": "string"
+  },
+  {
+    "type": "null"
+  }
+]

removedOutput schema / properties / rooms / items / properties / description / type
```
Removed value: -[
-  "string",
-  "null"
-]
```
addedOutput schema / properties / rooms / items / properties / max_occupancy / maximum
```
Added value: +9007199254740991
```
addedOutput schema / properties / rooms / items / properties / max_occupancy / minimum
```
Added value: +-9007199254740991
```

addedOutput schema / properties / rooms / items / properties / rate_plans / items / properties / booking_terms

Added value: +{
+  "additionalProperties": {},
+  "propertyNames": {
+    "type": "string"
+  },
+  "type": "object"
+}

removedOutput schema / properties / rooms / items / properties / rate_plans / items / properties / cancel_by_datetime / $ref
```
Removed value: -"#/properties/hotel/properties/photos/items/properties/description"
```
addedOutput schema / properties / rooms / items / properties / rate_plans / items / properties / cancel_by_datetime / anyOf
```
Added value: +[
+  {
+    "type": "string"
+  },
+  {
+    "type": "null"
+  }
+]
```
removedOutput schema / properties / rooms / items / properties / rate_plans / items / properties / guarantee_policy / $ref
```
Removed value: -"#/properties/hotel/properties/photos/items/properties/description"
```
addedOutput schema / properties / rooms / items / properties / rate_plans / items / properties / guarantee_policy / anyOf
```
Added value: +[
+  {
+    "type": "string"
+  },
+  {
+    "type": "null"
+  }
+]
```
addedOutput schema / properties / rooms / items / properties / rate_plans / items / properties / meal_plan / anyOf
```
Added value: +[
+  {
+    "type": "string"
+  },
+  {
+    "type": "null"
+  }
+]
```
removedOutput schema / properties / rooms / items / properties / rate_plans / items / properties / meal_plan / type
```
Removed value: -[
-  "string",
-  "null"
-]
```
addedOutput schema / properties / rooms / items / properties / rate_plans / items / properties / name / anyOf
```
Added value: +[
+  {
+    "type": "string"
+  },
+  {
+    "type": "null"
+  }
+]
```
removedOutput schema / properties / rooms / items / properties / rate_plans / items / properties / name / type
```
Removed value: -[
-  "string",
-  "null"
-]
```
addedOutput schema / properties / rooms / items / properties / rate_plans / items / properties / refundable / anyOf
```
Added value: +[
+  {
+    "type": "boolean"
+  },
+  {
+    "type": "null"
+  }
+]
```
removedOutput schema / properties / rooms / items / properties / rate_plans / items / properties / refundable / type
```
Removed value: -[
-  "boolean",
-  "null"
-]
```

addedOutput schema / properties / rooms / items / properties / room_name_confidence

Added value: +{
+  "enum": [
+    "high",
+    "medium",
+    "low"
+  ],
+  "type": "string"
+}

addedOutput schema / properties / stay

Added value: +{
+  "additionalProperties": false,
+  "properties": {
+    "check_in": {
+      "type": "string"
+    },
+    "check_out": {
+      "type": "string"
+    },
+    "guests": {
+      "maximum": 9007199254740991,
+      "minimum": -9007199254740991,
+      "type": "integer"
+    },
+    "nights": {
+      "maximum": 9007199254740991,
+      "minimum": -9007199254740991,
+      "type": "integer"
+    },
+    "rooms": {
+      "maximum": 9007199254740991,
+      "minimum": -9007199254740991,
+      "type": "integer"
+    }
+  },
+  "required": [
+    "check_in",
+    "check_out",
+    "guests",
+    "rooms",
+    "nights"
+  ],
+  "type": "object"
+}

Changed42 schema fields changedAug 25, 2026

changedInput schema / $schema

Previous value: -"https://json-schema.org/draft/2020-12/schema"New value: +"http://json-schema.org/draft-07/schema#"

addedInput schema / additionalProperties
```
Added value: +false
```
removedInput schema / properties / guests / maximum
```
Removed value: -9007199254740991
```
removedInput schema / properties / guests / minimum
```
Removed value: --9007199254740991
```

changedOutput schema / $schema

Previous value: -"https://json-schema.org/draft/2020-12/schema"New value: +"http://json-schema.org/draft-07/schema#"

removedOutput schema / properties / accessible_rooms_available / maximum
```
Removed value: -9007199254740991
```
removedOutput schema / properties / accessible_rooms_available / minimum
```
Removed value: --9007199254740991
```

removedOutput schema / properties / accessible_rooms_note / anyOf

Removed value: -[
-  {
-    "type": "string"
-  },
-  {
-    "type": "null"
-  }
-]

addedOutput schema / properties / accessible_rooms_note / type
```
Added value: +[
+  "string",
+  "null"
+]
```

removedOutput schema / properties / hotel / properties / address

Removed value: -{
-  "additionalProperties": false,
-  "properties": {
-    "city": {
-      "anyOf": [
-        {
-          "type": "string"
-        },
-        {
-          "type": "null"
-        }
-      ]
-    },
-    "country": {
-      "anyOf": [
-        {
-          "type": "string"
-        },
-        {
-          "type": "null"
-        }
-      ]
-    },
-    "line1": {
-      "anyOf": [
-        {
-          "type": "string"
-        },
-        {
-          "type": "null"
-        }
-      ]
-    },
-    "line2": {
-      "anyOf": [
-        {
-          "type": "string"
-        },
-        {
-          "type": "null"
-        }
-      ]
-    },
-    "postal_code": {
-      "anyOf": [
-        {
-          "type": "string"
-        },
-        {
-          "type": "null"
-        }
-      ]
-    },
-    "state": {
-      "anyOf": [
-        {
-          "type": "string"
-        },
-        {
-          "type": "null"
-        }
-      ]
-    }
-  },
-  "type": "object"
-}

removedOutput schema / properties / hotel / properties / amenities
```
Removed value: -{
-  "items": {},
-  "type": "array"
-}
```

removedOutput schema / properties / hotel / properties / chain / anyOf

Removed value: -[
-  {
-    "type": "string"
-  },
-  {
-    "type": "null"
-  }
-]

addedOutput schema / properties / hotel / properties / chain / type
```
Added value: +[
+  "string",
+  "null"
+]
```

removedOutput schema / properties / hotel / properties / check_in_time / anyOf

Removed value: -[
-  {
-    "type": "string"
-  },
-  {
-    "type": "null"
-  }
-]

addedOutput schema / properties / hotel / properties / check_in_time / type
```
Added value: +[
+  "string",
+  "null"
+]
```

removedOutput schema / properties / hotel / properties / check_out_time / anyOf

Removed value: -[
-  {
-    "type": "string"
-  },
-  {
-    "type": "null"
-  }
-]

addedOutput schema / properties / hotel / properties / check_out_time / type
```
Added value: +[
+  "string",
+  "null"
+]
```

removedOutput schema / properties / hotel / properties / description

Removed value: -{
-  "anyOf": [
-    {
-      "type": "string"
-    },
-    {
-      "type": "null"
-    }
-  ]
-}

removedOutput schema / properties / hotel / properties / name / anyOf

Removed value: -[
-  {
-    "type": "string"
-  },
-  {
-    "type": "null"
-  }
-]

addedOutput schema / properties / hotel / properties / name / type
```
Added value: +[
+  "string",
+  "null"
+]
```
removedOutput schema / properties / hotel / properties / photos / items / properties / description / anyOf
```
Removed value: -[
-  {
-    "type": "string"
-  },
-  {
-    "type": "null"
-  }
-]
```
addedOutput schema / properties / hotel / properties / photos / items / properties / description / type
```
Added value: +[
+  "string",
+  "null"
+]
```

removedOutput schema / properties / rate_quote_expires_at / anyOf

Removed value: -[
-  {
-    "type": "string"
-  },
-  {
-    "type": "null"
-  }
-]

addedOutput schema / properties / rate_quote_expires_at / type
```
Added value: +[
+  "string",
+  "null"
+]
```

changedOutput schema / properties / rate_quote_ttl_seconds / anyOf

Previous value: -[
-  {
-    "maximum": 9007199254740991,
-    "minimum": -9007199254740991,
-    "type": "integer"
-  },
-  {
-    "type": "null"
-  }
-]New value: +[
+  {
+    "type": "integer"
+  },
+  {
+    "type": "null"
+  }
+]

removedOutput schema / properties / rooms / items / properties / bed_type / anyOf

Removed value: -[
-  {
-    "type": "string"
-  },
-  {
-    "type": "null"
-  }
-]

addedOutput schema / properties / rooms / items / properties / bed_type / type
```
Added value: +[
+  "string",
+  "null"
+]
```

removedOutput schema / properties / rooms / items / properties / description / anyOf

Removed value: -[
-  {
-    "type": "string"
-  },
-  {
-    "type": "null"
-  }
-]

addedOutput schema / properties / rooms / items / properties / description / type
```
Added value: +[
+  "string",
+  "null"
+]
```
removedOutput schema / properties / rooms / items / properties / max_occupancy / maximum
```
Removed value: -9007199254740991
```
removedOutput schema / properties / rooms / items / properties / max_occupancy / minimum
```
Removed value: --9007199254740991
```
addedOutput schema / properties / rooms / items / properties / rate_plans / items / properties / cancel_by_datetime / $ref
```
Added value: +"#/properties/hotel/properties/photos/items/properties/description"
```
removedOutput schema / properties / rooms / items / properties / rate_plans / items / properties / cancel_by_datetime / anyOf
```
Removed value: -[
-  {
-    "type": "string"
-  },
-  {
-    "type": "null"
-  }
-]
```
addedOutput schema / properties / rooms / items / properties / rate_plans / items / properties / guarantee_policy / $ref
```
Added value: +"#/properties/hotel/properties/photos/items/properties/description"
```
removedOutput schema / properties / rooms / items / properties / rate_plans / items / properties / guarantee_policy / anyOf
```
Removed value: -[
-  {
-    "type": "string"
-  },
-  {
-    "type": "null"
-  }
-]
```
removedOutput schema / properties / rooms / items / properties / rate_plans / items / properties / meal_plan / anyOf
```
Removed value: -[
-  {
-    "type": "string"
-  },
-  {
-    "type": "null"
-  }
-]
```
addedOutput schema / properties / rooms / items / properties / rate_plans / items / properties / meal_plan / type
```
Added value: +[
+  "string",
+  "null"
+]
```
removedOutput schema / properties / rooms / items / properties / rate_plans / items / properties / name / anyOf
```
Removed value: -[
-  {
-    "type": "string"
-  },
-  {
-    "type": "null"
-  }
-]
```
addedOutput schema / properties / rooms / items / properties / rate_plans / items / properties / name / type
```
Added value: +[
+  "string",
+  "null"
+]
```
removedOutput schema / properties / rooms / items / properties / rate_plans / items / properties / refundable / anyOf
```
Removed value: -[
-  {
-    "type": "boolean"
-  },
-  {
-    "type": "null"
-  }
-]
```
addedOutput schema / properties / rooms / items / properties / rate_plans / items / properties / refundable / type
```
Added value: +[
+  "boolean",
+  "null"
+]
```

removedOutput schema / properties / stay

Removed value: -{
-  "additionalProperties": false,
-  "properties": {
-    "check_in": {
-      "type": "string"
-    },
-    "check_out": {
-      "type": "string"
-    },
-    "guests": {
-      "maximum": 9007199254740991,
-      "minimum": -9007199254740991,
-      "type": "integer"
-    },
-    "nights": {
-      "maximum": 9007199254740991,
-      "minimum": -9007199254740991,
-      "type": "integer"
-    },
-    "rooms": {
-      "maximum": 9007199254740991,
-      "minimum": -9007199254740991,
-      "type": "integer"
-    }
-  },
-  "required": [
-    "check_in",
-    "check_out",
-    "guests",
-    "rooms",
-    "nights"
-  ],
-  "type": "object"
-}

Changed42 schema fields changedAug 24, 2026

changedInput schema / $schema

Previous value: -"http://json-schema.org/draft-07/schema#"New value: +"https://json-schema.org/draft/2020-12/schema"

removedInput schema / additionalProperties
```
Removed value: -false
```
addedInput schema / properties / guests / maximum
```
Added value: +9007199254740991
```
addedInput schema / properties / guests / minimum
```
Added value: +-9007199254740991
```

changedOutput schema / $schema

Previous value: -"http://json-schema.org/draft-07/schema#"New value: +"https://json-schema.org/draft/2020-12/schema"

addedOutput schema / properties / accessible_rooms_available / maximum
```
Added value: +9007199254740991
```
addedOutput schema / properties / accessible_rooms_available / minimum
```
Added value: +-9007199254740991
```

addedOutput schema / properties / accessible_rooms_note / anyOf

Added value: +[
+  {
+    "type": "string"
+  },
+  {
+    "type": "null"
+  }
+]

removedOutput schema / properties / accessible_rooms_note / type
```
Removed value: -[
-  "string",
-  "null"
-]
```

addedOutput schema / properties / hotel / properties / address

Added value: +{
+  "additionalProperties": false,
+  "properties": {
+    "city": {
+      "anyOf": [
+        {
+          "type": "string"
+        },
+        {
+          "type": "null"
+        }
+      ]
+    },
+    "country": {
+      "anyOf": [
+        {
+          "type": "string"
+        },
+        {
+          "type": "null"
+        }
+      ]
+    },
+    "line1": {
+      "anyOf": [
+        {
+          "type": "string"
+        },
+        {
+          "type": "null"
+        }
+      ]
+    },
+    "line2": {
+      "anyOf": [
+        {
+          "type": "string"
+        },
+        {
+          "type": "null"
+        }
+      ]
+    },
+    "postal_code": {
+      "anyOf": [
+        {
+          "type": "string"
+        },
+        {
+          "type": "null"
+        }
+      ]
+    },
+    "state": {
+      "anyOf": [
+        {
+          "type": "string"
+        },
+        {
+          "type": "null"
+        }
+      ]
+    }
+  },
+  "type": "object"
+}

addedOutput schema / properties / hotel / properties / amenities
```
Added value: +{
+  "items": {},
+  "type": "array"
+}
```

addedOutput schema / properties / hotel / properties / chain / anyOf

Added value: +[
+  {
+    "type": "string"
+  },
+  {
+    "type": "null"
+  }
+]

removedOutput schema / properties / hotel / properties / chain / type
```
Removed value: -[
-  "string",
-  "null"
-]
```

addedOutput schema / properties / hotel / properties / check_in_time / anyOf

Added value: +[
+  {
+    "type": "string"
+  },
+  {
+    "type": "null"
+  }
+]

removedOutput schema / properties / hotel / properties / check_in_time / type
```
Removed value: -[
-  "string",
-  "null"
-]
```

addedOutput schema / properties / hotel / properties / check_out_time / anyOf

Added value: +[
+  {
+    "type": "string"
+  },
+  {
+    "type": "null"
+  }
+]

removedOutput schema / properties / hotel / properties / check_out_time / type
```
Removed value: -[
-  "string",
-  "null"
-]
```

addedOutput schema / properties / hotel / properties / description

Added value: +{
+  "anyOf": [
+    {
+      "type": "string"
+    },
+    {
+      "type": "null"
+    }
+  ]
+}

addedOutput schema / properties / hotel / properties / name / anyOf

Added value: +[
+  {
+    "type": "string"
+  },
+  {
+    "type": "null"
+  }
+]

removedOutput schema / properties / hotel / properties / name / type
```
Removed value: -[
-  "string",
-  "null"
-]
```
addedOutput schema / properties / hotel / properties / photos / items / properties / description / anyOf
```
Added value: +[
+  {
+    "type": "string"
+  },
+  {
+    "type": "null"
+  }
+]
```
removedOutput schema / properties / hotel / properties / photos / items / properties / description / type
```
Removed value: -[
-  "string",
-  "null"
-]
```

addedOutput schema / properties / rate_quote_expires_at / anyOf

Added value: +[
+  {
+    "type": "string"
+  },
+  {
+    "type": "null"
+  }
+]

removedOutput schema / properties / rate_quote_expires_at / type
```
Removed value: -[
-  "string",
-  "null"
-]
```

changedOutput schema / properties / rate_quote_ttl_seconds / anyOf

Previous value: -[
-  {
-    "type": "integer"
-  },
-  {
-    "type": "null"
-  }
-]New value: +[
+  {
+    "maximum": 9007199254740991,
+    "minimum": -9007199254740991,
+    "type": "integer"
+  },
+  {
+    "type": "null"
+  }
+]

addedOutput schema / properties / rooms / items / properties / bed_type / anyOf

Added value: +[
+  {
+    "type": "string"
+  },
+  {
+    "type": "null"
+  }
+]

removedOutput schema / properties / rooms / items / properties / bed_type / type
```
Removed value: -[
-  "string",
-  "null"
-]
```

addedOutput schema / properties / rooms / items / properties / description / anyOf

Added value: +[
+  {
+    "type": "string"
+  },
+  {
+    "type": "null"
+  }
+]

removedOutput schema / properties / rooms / items / properties / description / type
```
Removed value: -[
-  "string",
-  "null"
-]
```
addedOutput schema / properties / rooms / items / properties / max_occupancy / maximum
```
Added value: +9007199254740991
```
addedOutput schema / properties / rooms / items / properties / max_occupancy / minimum
```
Added value: +-9007199254740991
```
removedOutput schema / properties / rooms / items / properties / rate_plans / items / properties / cancel_by_datetime / $ref
```
Removed value: -"#/properties/hotel/properties/photos/items/properties/description"
```
addedOutput schema / properties / rooms / items / properties / rate_plans / items / properties / cancel_by_datetime / anyOf
```
Added value: +[
+  {
+    "type": "string"
+  },
+  {
+    "type": "null"
+  }
+]
```
removedOutput schema / properties / rooms / items / properties / rate_plans / items / properties / guarantee_policy / $ref
```
Removed value: -"#/properties/hotel/properties/photos/items/properties/description"
```
addedOutput schema / properties / rooms / items / properties / rate_plans / items / properties / guarantee_policy / anyOf
```
Added value: +[
+  {
+    "type": "string"
+  },
+  {
+    "type": "null"
+  }
+]
```
addedOutput schema / properties / rooms / items / properties / rate_plans / items / properties / meal_plan / anyOf
```
Added value: +[
+  {
+    "type": "string"
+  },
+  {
+    "type": "null"
+  }
+]
```
removedOutput schema / properties / rooms / items / properties / rate_plans / items / properties / meal_plan / type
```
Removed value: -[
-  "string",
-  "null"
-]
```
addedOutput schema / properties / rooms / items / properties / rate_plans / items / properties / name / anyOf
```
Added value: +[
+  {
+    "type": "string"
+  },
+  {
+    "type": "null"
+  }
+]
```
removedOutput schema / properties / rooms / items / properties / rate_plans / items / properties / name / type
```
Removed value: -[
-  "string",
-  "null"
-]
```
addedOutput schema / properties / rooms / items / properties / rate_plans / items / properties / refundable / anyOf
```
Added value: +[
+  {
+    "type": "boolean"
+  },
+  {
+    "type": "null"
+  }
+]
```
removedOutput schema / properties / rooms / items / properties / rate_plans / items / properties / refundable / type
```
Removed value: -[
-  "boolean",
-  "null"
-]
```

addedOutput schema / properties / stay

Added value: +{
+  "additionalProperties": false,
+  "properties": {
+    "check_in": {
+      "type": "string"
+    },
+    "check_out": {
+      "type": "string"
+    },
+    "guests": {
+      "maximum": 9007199254740991,
+      "minimum": -9007199254740991,
+      "type": "integer"
+    },
+    "nights": {
+      "maximum": 9007199254740991,
+      "minimum": -9007199254740991,
+      "type": "integer"
+    },
+    "rooms": {
+      "maximum": 9007199254740991,
+      "minimum": -9007199254740991,
+      "type": "integer"
+    }
+  },
+  "required": [
+    "check_in",
+    "check_out",
+    "guests",
+    "rooms",
+    "nights"
+  ],
+  "type": "object"
+}

Changed1 schema field changedAug 19, 2026

changedInput schema / properties / check_in / description

Previous value: -"Check-in date in YYYY-MM-DD format (e.g. 2026-05-06)"New value: +"Check-in date in YYYY-MM-DD format (e.g. 2026-05-06), no more than 340 days from today"

Changed3 schema fields changedAug 18, 2026

addedInput schema / properties / rooms / const
```
Added value: +1
```

changedInput schema / properties / rooms / description

Previous value: -"Number of rooms to price (default 1, maximum 5). MCP checkout creates one room per reservation."New value: +"Number of rooms. 1Stay currently supports exactly one room per search and reservation; omit this field or set it to 1."

changedInput schema / properties / rooms / type

Previous value: -"integer"New value: +"number"

Changed3 schema fields changedAug 17, 2026

changedInput schema / properties / accessible / description

Previous value: -"Return accessible (ADA) room types instead of standard ones. Omitted by default because hotels list many near-identical accessible variants. The response always reports accessible_rooms_available, so if a guest needs one, call again with accessible: true."New value: +"When true, returns accessible (ADA) room types instead of standard ones. Default false because hotels list many near-identical accessible variants. The response always reports accessible_rooms_available."

changedInput schema / properties / rooms / description

Previous value: -"Number of rooms (default 1)"New value: +"Number of rooms to price (default 1, maximum 5). MCP checkout creates one room per reservation."

changedOutput schema / (root)

Previous value: -nullNew value: +{
+  "$schema": "http://json-schema.org/draft-07/schema#",
+  "additionalProperties": false,
+  "properties": {
+    "accessible_rooms_available": {
+      "type": "integer"
+    },
+    "accessible_rooms_note": {
+      "type": [
+        "string",
+        "null"
+      ]
+    },
+    "availability_status": {
+      "enum": [
+        "available",
+        "unavailable"
+      ],
+      "type": "string"
+    },
+    "hotel": {
+      "additionalProperties": false,
+      "properties": {
+        "chain": {
+          "type": [
+            "string",
+            "null"
+          ]
+        },
+        "check_in_time": {
+          "type": [
+            "string",
+            "null"
+          ]
+        },
+        "check_out_time": {
+          "type": [
+            "string",
+            "null"
+          ]
+        },
+        "hotel_id": {
+          "type": "string"
+        },
+        "name": {
+          "type": [
+            "string",
+            "null"
+          ]
+        },
+        "photos": {
+          "items": {
+            "additionalProperties": false,
+            "properties": {
+              "description": {
+                "type": [
+                  "string",
+                  "null"
+                ]
+              },
+              "thumbnail": {
+                "type": "string"
+              },
+              "url": {
+                "type": "string"
+              }
+            },
+            "required": [
+              "description"
+            ],
+            "type": "object"
+          },
+          "type": "array"
+        },
+        "review": {}
+      },
+      "required": [
+        "hotel_id",
+        "photos"
+      ],
+      "type": "object"
+    },
+    "message": {
+      "type": "string"
+    },
+    "next_step": {
+      "type": "string"
+    },
+    "rate_quote_expires_at": {
+      "type": [
+        "string",
+        "null"
+      ]
+    },
+    "rate_quote_ttl_seconds": {
+      "anyOf": [
+        {
+          "type": "integer"
+        },
+        {
+          "type": "null"
+        }
+      ]
+    },
+    "rooms": {
+      "items": {
+        "additionalProperties": false,
+        "properties": {
+          "bed_type": {
+            "type": [
+              "string",
+              "null"
+            ]
+          },
+          "description": {
+            "type": [
+              "string",
+              "null"
+            ]
+          },
+          "max_occupancy": {
+            "type": "integer"
+          },
+          "name": {
+            "type": "string"
+          },
+          "rate_plans": {
+            "items": {
+              "additionalProperties": false,
+              "properties": {
+                "avg_nightly_rate": {
+                  "type": "number"
+                },
+                "booking_fee": {
+                  "type": "number"
+                },
+                "booking_fee_currency": {
+                  "type": "string"
+                },
+                "booking_type": {
+                  "type": "string"
+                },
+                "cancel_by_datetime": {
+                  "$ref": "#/properties/hotel/properties/photos/items/properties/description"
+                },
+                "cancellation_policy": {
+                  "type": "string"
+                },
+                "currency": {
+                  "type": "string"
+                },
+                "guarantee_policy": {
+                  "$ref": "#/properties/hotel/properties/photos/items/properties/description"
+                },
+                "meal_plan": {
+                  "type": [
+                    "string",
+                    "null"
+                  ]
+                },
+                "name": {
+                  "type": [
+                    "string",
+                    "null"
+                  ]
+                },
+                "nightly_breakdown": {
+                  "items": {},
+                  "type": "array"
+                },
+                "rate_code": {
+                  "type": "string"
+                },
+                "refundable": {
+                  "type": [
+                    "boolean",
+                    "null"
+                  ]
+                },
+                "reward_points_eligible": {
+                  "type": "boolean"
+                },
+                "subtotal": {
+                  "type": "number"
+                },
+                "taxes": {
+                  "type": "number"
+                },
+                "total_with_taxes": {
+                  "type": "number"
+                }
+              },
+              "required": [
+                "rate_code",
+                "total_with_taxes",
+                "avg_nightly_rate",
+                "subtotal",
+                "taxes",
+                "currency",
+                "nightly_breakdown",
+                "cancellation_policy",
+                "cancel_by_datetime",
+                "guarantee_policy",
+                "reward_points_eligible",
+                "booking_type"
+              ],
+              "type": "object"
+            },
+            "type": "array"
+          },
+          "room_id": {
+            "type": "string"
+          }
+        },
+        "required": [
+          "room_id",
+          "name",
+          "rate_plans"
+        ],
+        "type": "object"
+      },
+      "type": "array"
+    }
+  },
+  "required": [
+    "hotel",
+    "rooms",
+    "accessible_rooms_available"
+  ],
+  "type": "object"
+}

Changed1 schema field changedAug 7, 2026

addedInput schema / properties / accessible

Added value: +{
+  "description": "Return accessible (ADA) room types instead of standard ones. Omitted by default because hotels list many near-identical accessible variants. The response always reports accessible_rooms_available, so if a guest needs one, call again with accessible: true.",
+  "type": "boolean"
+}

Changed2 schema fields changedMar 25, 2026

changedInput schema / properties / check_in / description

Previous value: -"Check-in date (YYYY-MM-DD)"New value: +"Check-in date in YYYY-MM-DD format (e.g. 2026-05-06)"

changedInput schema / properties / check_out / description

Previous value: -"Check-out date (YYYY-MM-DD)"New value: +"Check-out date in YYYY-MM-DD format (e.g. 2026-05-07)"

First observedMar 18, 2026

TDQS

A4.2/5.0

Behavior4/5

Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?

Annotations already declare readOnlyHint=true and destructiveHint=false, and the description adds meaningful behavioral context beyond that: the guest pays the hotel directly, displayed totals include taxes and an itemized 1Stay Booking Fee, and loyalty points are eligible. The room-type notes further clarify what results mean, which is valuable for an agent interpreting responses.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Conciseness4/5

Is the description appropriately sized, front-loaded, and free of redundancy?

The description is front-loaded with the core purpose in the first sentence, then adds tightly relevant details about payment, fees, loyalty, and room-type terminology. It is longer than the minimum, but each section adds decision-relevant context without filler.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Completeness5/5

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

For a read-only details tool with an output schema and full parameter documentation, the description is complete: it states scope, links the output to the next booking step, explains pricing behavior, and clarifies ambiguous room-type terms. Nothing critical is missing for an agent to invoke it correctly.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Parameters3/5

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

Schema description coverage is 100%, so all six parameters are already documented in the input schema. The description adds only marginal parameter-level value, mostly restating the one-room constraint already captured in the rooms parameter. Baseline 3 is appropriate.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Purpose5/5

Does the description clearly state what the tool does and how it differs from similar tools?

The description opens with a specific verb and resource: 'Get rates and room details for exactly one room at a specific hotel.' It then enumerates the concrete outputs (room types, live rates, amenities, cancellation policies, rate_codes), which clearly differentiates it from sibling tools like search_hotels and book_hotel.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Usage Guidelines4/5

Does the description explain when to use this tool, when not to, or what alternatives exist?

The context is clear: this is the detail-lookup step for a specific hotel before booking, reinforced by stating the returned rate_codes are 'required by book_hotel.' It does not explicitly spell out when not to use it or name alternatives, but the workflow implication is strong.

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.

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Hotel Details

Input Schema

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Schema Changelog

TDQS

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