met-museum-mcp-server

List Met Departments

met_list_departments

Read-onlyIdempotent

Return the 19 curatorial departments at The Metropolitan Museum of Art, each with its numeric departmentId and display name — the valid values for the departmentId filter on met_search_collections and met_list_objects.

Input Schema

TableJSON Schema

Name	Required	Description	Default
No arguments

Output Schema

TableJSON Schema

Name	Required	Description	Default
`error`	No	Present when the call failed. Absent on success.
`departments`	No	All 19 curatorial departments at The Metropolitan Museum of Art.

Schema Changelog

Changes observed during successful MCP inspections.

Changed2 schema fields changedOct 15, 2026

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

Previous value: -"Machine-readable failure mode. Declared by this tool: `upstream_blocked`: The Met API's firewall refused the request with HTTP 403 — it blocks this server's address, not one endpoint. `upstream_unavailable`: The Met API answered HTTP 500, 502, 503, or 504 until the retry ladder ran out — an outage on its side. `retry_deadline_exceeded`: The call's time budget ran out, retries and backoff included, before the Met API returned a successful response. Other values are possible when a failure originates below the handler."New value: +"Machine-readable failure mode. Declared by this tool: `upstream_blocked`: The Met API's firewall refused the request with HTTP 403 — it blocks this server's address, not one endpoint. `upstream_unavailable`: The Met API answered HTTP 500, 502, 503, or 504 until the retry ladder ran out — an outage on its side. `upstream_rate_limited`: The Met API answered HTTP 429 until the retry ladder ran out, or asked for a wait longer than the ladder or the call's time budget allows — it throttles this server's address, not one endpoint. `retry_deadline_exceeded`: The call's time budget ran out, retries and backoff included, before the Met API returned a successful response. Other values are possible when a failure originates below the handler."

changedOutput schema / properties / error / properties / data / properties / reason / examples

Previous value: -[
-  "upstream_blocked",
-  "upstream_unavailable",
-  "retry_deadline_exceeded"
-]New value: +[
+  "upstream_blocked",
+  "upstream_unavailable",
+  "upstream_rate_limited",
+  "retry_deadline_exceeded"
+]

Changed2 schema fields changedOct 4, 2026

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

Previous value: -"Machine-readable failure mode. Declared by this tool: `upstream_blocked`: The Met API's firewall refused the request with HTTP 403 — it blocks this server's address, not one endpoint. `retry_deadline_exceeded`: The call's time budget ran out, retries and backoff included, before the Met API returned a successful response. Other values are possible when a failure originates below the handler."New value: +"Machine-readable failure mode. Declared by this tool: `upstream_blocked`: The Met API's firewall refused the request with HTTP 403 — it blocks this server's address, not one endpoint. `upstream_unavailable`: The Met API answered HTTP 500, 502, 503, or 504 until the retry ladder ran out — an outage on its side. `retry_deadline_exceeded`: The call's time budget ran out, retries and backoff included, before the Met API returned a successful response. Other values are possible when a failure originates below the handler."

changedOutput schema / properties / error / properties / data / properties / reason / examples

Previous value: -[
-  "upstream_blocked",
-  "retry_deadline_exceeded"
-]New value: +[
+  "upstream_blocked",
+  "upstream_unavailable",
+  "retry_deadline_exceeded"
+]

Changed3 schema fields changedSep 30, 2026

changedOutput schema / properties / departments / items / properties / departmentId / description

Previous value: -"Numeric department ID for use in the met_search_collections departmentId parameter."New value: +"Numeric department ID for the departmentId parameter of met_search_collections and met_list_objects."

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: `upstream_blocked`: The Met API's firewall refused the request with HTTP 403 — it blocks this server's address, not one endpoint. `retry_deadline_exceeded`: The call's time budget ran out, retries and backoff included, before the Met API returned a successful response. Other values are possible when a failure originates below the handler."

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

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": [
+      "departments"
+    ]
+  },
+  {
+    "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: -[
-  "departments"
-]
```

Changed1 schema field changedJun 9, 2026

changedOutput schema / properties / departments / items / properties / departmentId / description

Previous value: -"Numeric department ID for use in the met_search departmentId parameter."New value: +"Numeric department ID for use in the met_search_collections departmentId parameter."

First observedJun 3, 2026

TDQS

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List Met Departments

Input Schema

Output Schema

Schema Changelog

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