Add 1Password MCP server definition

Community 1Password MCP server for accessing secrets from vaults. List vaults,
retrieve items, and search credentials. Uses @takescake/1password-mcp.

https://claude.ai/code/session_013AxurW8hPAfnUNvik354Xx

Author: its-mash

servers/community.1password.json

@@ -0,0 +1,64 @@
+{
+  "$schema": "../schemas/server-definition.schema.json",
+  "id": "community.1password",
+  "name": "1Password",
+  "alias": "1password",
+  "description": "Access secrets from 1Password vaults. List vaults, retrieve items, and search for credentials using a service account token.",
+  "icon": "https://avatars.githubusercontent.com/u/38230737?v=4",
+  "schema_version": "2.1",
+  "categories": ["security"],
+  "tags": ["1password", "secrets", "passwords", "credentials", "vaults", "security"],
+
+  "transport": {
+    "type": "stdio",
+    "command": "npx",
+    "args": ["-y", "@takescake/1password-mcp"],
+    "env": {
+      "OP_SERVICE_ACCOUNT_TOKEN": "${input:OP_SERVICE_ACCOUNT_TOKEN}"
+    },
+    "metadata": {
+      "inputs": [
+        {
+          "id": "OP_SERVICE_ACCOUNT_TOKEN",
+          "label": "1Password Service Account Token",
+          "description": "Service account token for accessing 1Password vaults. Scoped to specific vaults.",
+          "type": "password",
+          "required": true,
+          "secret": true,
+          "placeholder": "ops_xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx",
+          "obtain": {
+            "url": "https://my.1password.com/developer-tools/infrastructure-secrets/serviceaccount",
+            "instructions": "1. Go to 1Password.com > Developer Tools > Service Accounts\n2. Click 'Create a Service Account'\n3. Name it and select which vaults it can access\n4. Copy the token (starts with ops_)",
+            "button_label": "Create Service Account"
+          }
+        }
+      ]
+    }
+  },
+
+  "auth": {
+    "type": "api_key",
+    "instructions": "Create a 1Password Service Account at https://my.1password.com/developer-tools/infrastructure-secrets/serviceaccount"
+  },
+
+  "contributor": {
+    "name": "TakesCake",
+    "github": "CakeRepository",
+    "url": "https://github.com/CakeRepository"
+  },
+
+  "links": {
+    "repository": "https://github.com/CakeRepository/1Password-MCP",
+    "homepage": "https://1password.com",
+    "documentation": "https://github.com/CakeRepository/1Password-MCP#readme"
+  },
+
+  "platforms": ["all"],
+
+  "capabilities": {
+    "tools": true,
+    "resources": false,
+    "prompts": false,
+    "read_only_mode": true
+  }
+}