wikidata-mcp-server

Search Wikidata Entities

wikidata_search_entities

Read-only

Search Wikidata for items or properties by text query. Returns QIDs or PIDs with labels, descriptions, and match metadata indicating whether the hit was on a label or alias. Use type="item" for real-world concepts (people, places, works) and type="property" to find predicate P-IDs. The API returns no total count — pagination is offset-based with no result ceiling indicator.

Input Schema

TableJSON Schema

Name	Required	Description	Default
`type`	No	Entity type to search. Use "item" for Q-IDs (people, places, concepts) or "property" for P-IDs (predicates).	item
`limit`	No	Maximum number of results to return. Range: 1–50.
`query`	Yes	Search terms to match against entity labels, aliases, and descriptions.
`offset`	No	Pagination offset. Start at 0; increment by limit to page through results.
`language`	No	Wikidata language code for returned labels and descriptions (e.g., "en", "de", "zh-hant"). Case-insensitive; "_" is read as "-"; blank means "en".	en

Output Schema

TableJSON Schema

Name	Required	Description
`cap`	No	The limit parameter in effect.
`error`	No	Present when the call failed. Absent on success.
`shown`	No	Number of results returned on this page.
`notice`	No	Recovery hint when results are empty — echoes filters and suggests how to broaden. Absent when results are present.
`results`	No	Ranked list of matching entities. Empty when no results found.
`language`	No	The language used for label and description display.
`truncated`	No	True when results were capped at the limit. The Wikidata search API returns no total count — use offset pagination to retrieve more.
`searchType`	No	The entity type that was searched ("item" or "property").
`effectiveQuery`	No	The search query that was executed.

Schema Changelog

Changes observed during successful MCP inspections.

Changed4 schema fields changedOct 13, 2026

changedInput schema / properties / language / description

Previous value: -"BCP 47 language code for returned labels and descriptions (e.g., \"en\", \"de\", \"zh\")."New value: +"Wikidata language code for returned labels and descriptions (e.g., \"en\", \"de\", \"zh-hant\"). Case-insensitive; \"_\" is read as \"-\"; blank means \"en\"."

addedInput schema / properties / language / pattern

Added value: +"^\\s*(?:[A-Za-z]{2,8}(?:[-_][A-Za-z0-9]{1,9})*\\s*)?$"

changedOutput schema / properties / error / properties / data / properties / reason / description

Previous value: -"Machine-readable failure mode."New value: +"Machine-readable failure mode. Declared by this tool: `invalid_search_parameter`: The search endpoint refused a request parameter, in practice a language it does not search in such as \"mul\". Other values are possible when a failure originates below the handler."

addedOutput schema / properties / error / properties / data / properties / reason / examples
```
Added value: +[
+  "invalid_search_parameter"
+]
```

Changed6 schema fields changedAug 22, 2026

changedInput schema / $schema

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

addedInput schema / additionalProperties
```
Added value: +false
```

changedOutput schema / $schema

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

addedOutput schema / anyOf

Added value: +[
+  {
+    "not": {
+      "required": [
+        "error"
+      ]
+    },
+    "required": [
+      "results",
+      "effectiveQuery",
+      "searchType",
+      "language",
+      "shown",
+      "cap"
+    ]
+  },
+  {
+    "required": [
+      "error"
+    ]
+  }
+]

addedOutput schema / properties / error

Added value: +{
+  "additionalProperties": {},
+  "description": "Present when the call failed. Absent on success.",
+  "properties": {
+    "code": {
+      "description": "JSON-RPC error code for this failure.",
+      "maximum": 9007199254740991,
+      "minimum": -9007199254740991,
+      "type": "integer"
+    },
+    "data": {
+      "additionalProperties": {},
+      "properties": {
+        "reason": {
+          "description": "Machine-readable failure mode.",
+          "type": "string"
+        },
+        "recovery": {
+          "additionalProperties": {},
+          "description": "Actionable next step for the caller.",
+          "properties": {
+            "hint": {
+              "type": "string"
+            }
+          },
+          "required": [
+            "hint"
+          ],
+          "type": "object"
+        },
+        "retryable": {
+          "description": "Whether retrying may succeed.",
+          "type": "boolean"
+        }
+      },
+      "type": "object"
+    },
+    "message": {
+      "description": "Human-readable description of what went wrong.",
+      "type": "string"
+    }
+  },
+  "required": [
+    "code",
+    "message"
+  ],
+  "type": "object"
+}

removedOutput schema / required

Removed value: -[
-  "results",
-  "effectiveQuery",
-  "searchType",
-  "language",
-  "shown",
-  "cap"
-]

Changed5 schema fields changedJun 13, 2026

addedOutput schema / properties / cap

Added value: +{
+  "description": "The limit parameter in effect.",
+  "type": "number"
+}

removedOutput schema / properties / resultCount

Removed value: -{
-  "description": "Number of results returned on this page.",
-  "type": "number"
-}

addedOutput schema / properties / shown

Added value: +{
+  "description": "Number of results returned on this page.",
+  "type": "number"
+}

addedOutput schema / properties / truncated

Added value: +{
+  "description": "True when results were capped at the limit. The Wikidata search API returns no total count — use offset pagination to retrieve more.",
+  "type": "boolean"
+}

changedOutput schema / required

Previous value: -[
-  "results",
-  "effectiveQuery",
-  "searchType",
-  "language",
-  "resultCount"
-]New value: +[
+  "results",
+  "effectiveQuery",
+  "searchType",
+  "language",
+  "shown",
+  "cap"
+]

Changed8 schema fields changedMay 30, 2026

addedOutput schema / properties / effectiveQuery

Added value: +{
+  "description": "The search query that was executed.",
+  "type": "string"
+}

removedOutput schema / properties / message

Removed value: -{
-  "description": "Recovery hint when results are empty — suggests how to broaden the query. Absent when results are present.",
-  "type": "string"
-}

addedOutput schema / properties / notice

Added value: +{
+  "description": "Recovery hint when results are empty — echoes filters and suggests how to broaden. Absent when results are present.",
+  "type": "string"
+}

removedOutput schema / properties / query

Removed value: -{
-  "description": "The search query that was executed.",
-  "type": "string"
-}

addedOutput schema / properties / resultCount

Added value: +{
+  "description": "Number of results returned on this page.",
+  "type": "number"
+}

addedOutput schema / properties / searchType

Added value: +{
+  "description": "The entity type that was searched (\"item\" or \"property\").",
+  "type": "string"
+}

removedOutput schema / properties / type

Removed value: -{
-  "description": "The entity type that was searched (\"item\" or \"property\").",
-  "type": "string"
-}

changedOutput schema / required

Previous value: -[
-  "results",
-  "query",
-  "type",
-  "language"
-]New value: +[
+  "results",
+  "effectiveQuery",
+  "searchType",
+  "language",
+  "resultCount"
+]

First observedMay 25, 2026

TDQS

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