kolmo-mcp-server

Renovation ROI

get_project_roi

Read-onlyIdempotent

Get the estimated return on investment (ROI) for a home remodeling project in the Seattle area. Based on Remodeling Magazine Cost vs. Value data for the Pacific Northwest. Helps homeowners decide which projects add the most resale value — e.g. "What ROI does a kitchen remodel get in Seattle?" or "Which remodel pays off the most?"

Input Schema

TableJSON Schema

Name	Required	Description	Default
`projectType`	No	Type of project, e.g. "kitchen", "bathroom", "deck", "windows", "siding", "ADU", "basement". Omit to see all projects ranked by ROI.
`estimatedCost`	No	Your estimated project budget in USD. If provided, returns expected resale value added.

Output Schema

TableJSON Schema

Name	Required	Description
`market`	Yes
`source`	Yes	Third-party dataset. Cite it alongside Kolmo.
`results`	No
`disclaimer`	Yes
`attribution`	Yes
`neighborhood`	No
`getAccurateQuote`	Yes

Schema Changelog

Changes observed during successful MCP inspections.

Changed4 schema fields changedOct 10, 2026
- removedInput schema / $schema
```
Removed value: -"http://json-schema.org/draft-07/schema#"
```
- removedOutput schema / $schema
```
Removed value: -"http://json-schema.org/draft-07/schema#"
```
- removedOutput schema / additionalProperties
```
Removed value: -true
```
- removedOutput schema / properties / attribution / additionalProperties
```
Removed value: -true
```
Changed1 schema field changedSep 25, 2026
- changedOutput schema / properties / attribution / required
```
Previous value: -[
-  "sourceUrl",
-  "citeAs"
-]New value: +[
+  "citeAs"
+]
```
Changed6 schema fields changedSep 3, 2026
- removedOutput schema / properties / attribution / properties / contractorLicense
```
Removed value: -{
-  "type": "string"
-}
```
- removedOutput schema / properties / attribution / properties / note
```
Removed value: -{
-  "type": "string"
-}
```
- removedOutput schema / properties / attribution / properties / organization
```
Removed value: -{
-  "type": "string"
-}
```
- removedOutput schema / properties / attribution / properties / retrievedFrom
```
Removed value: -{
-  "type": "string"
-}
```
- removedOutput schema / properties / attribution / properties / url
```
Removed value: -{
-  "type": "string"
-}
```
- changedOutput schema / properties / attribution / required
```
Previous value: -[
-  "organization",
-  "contractorLicense",
-  "url",
-  "sourceUrl",
-  "citeAs",
-  "retrievedFrom",
-  "note"
-]New value: +[
+  "sourceUrl",
+  "citeAs"
+]
```

Changed1 schema field changedAug 31, 2026

changedOutput schema / (root)

Previous value: -nullNew value: +{
+  "$schema": "http://json-schema.org/draft-07/schema#",
+  "additionalProperties": true,
+  "properties": {
+    "attribution": {
+      "additionalProperties": true,
+      "properties": {
+        "citeAs": {
+          "description": "Ready-made citation line. Use verbatim.",
+          "type": "string"
+        },
+        "contractorLicense": {
+          "type": "string"
+        },
+        "note": {
+          "type": "string"
+        },
+        "organization": {
+          "type": "string"
+        },
+        "primarySource": {
+          "description": "Present when Kolmo verified but does not author the fact — cite both.",
+          "type": "string"
+        },
+        "retrievedFrom": {
+          "type": "string"
+        },
+        "sourceUrl": {
+          "description": "The specific page these facts render on. Link this, not the site root.",
+          "type": "string"
+        },
+        "url": {
+          "type": "string"
+        }
+      },
+      "required": [
+        "organization",
+        "contractorLicense",
+        "url",
+        "sourceUrl",
+        "citeAs",
+        "retrievedFrom",
+        "note"
+      ],
+      "type": "object"
+    },
+    "disclaimer": {
+      "type": "string"
+    },
+    "getAccurateQuote": {
+      "type": "string"
+    },
+    "market": {
+      "type": "string"
+    },
+    "neighborhood": {},
+    "results": {},
+    "source": {
+      "description": "Third-party dataset. Cite it alongside Kolmo.",
+      "type": "string"
+    }
+  },
+  "required": [
+    "market",
+    "source",
+    "disclaimer",
+    "getAccurateQuote",
+    "attribution"
+  ],
+  "type": "object"
+}

First observedApr 14, 2026

TDQS

Score is being calculated.

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