feat: add Mem0 MCP server definition (#53)

* feat: add Mem0 MCP server definition

Add Mem0 local stdio server via npx @mem0/mcp.
Persistent long-term memory for AI agents across sessions.

https://claude.ai/code/session_013AxurW8hPAfnUNvik354Xx

* fix: update server definition (input type 'password' -> 'text' for MEM0_API_KEY)

* fix: rename server files with transport suffix

- com.mem0-mcp.json -> com.mem0-mcp-npx.json (id: com.mem0-mcp-npx)

Signed-off-by: Mohammod Al Amin Ashik <maa.ashik00@gmail.com>

---------

Signed-off-by: Mohammod Al Amin Ashik <maa.ashik00@gmail.com>

Author: its-mash

servers/com.mem0-mcp-npx.json

@@ -0,0 +1,72 @@
+{
+  "$schema": "../schemas/server-definition.schema.json",
+  "id": "com.mem0-mcp-npx",
+  "name": "Mem0 (npx)",
+  "alias": "mem0",
+  "description": "Add persistent long-term memory to AI agents. Store, search, update, and delete memories across sessions using the official Mem0 Memory API.",
+  "icon": "https://avatars.githubusercontent.com/u/137054526?v=4",
+  "schema_version": "2.1",
+  "categories": [
+    "ai-ml"
+  ],
+  "tags": [
+    "mem0",
+    "memory",
+    "long-term-memory",
+    "ai-agents",
+    "personalization",
+    "context"
+  ],
+  "transport": {
+    "type": "stdio",
+    "command": "npx",
+    "args": [
+      "-y",
+      "@mem0/mcp"
+    ],
+    "env": {
+      "MEM0_API_KEY": "${input:MEM0_API_KEY}"
+    },
+    "metadata": {
+      "inputs": [
+        {
+          "id": "MEM0_API_KEY",
+          "label": "Mem0 API Key",
+          "description": "API key for the Mem0 Memory API. Required to store and retrieve memories.",
+          "type": "text",
+          "required": true,
+          "secret": true,
+          "placeholder": "m0-xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx",
+          "obtain": {
+            "url": "https://app.mem0.ai/dashboard/api-keys",
+            "instructions": "1. Go to app.mem0.ai and create an account\n2. Navigate to the API Keys page\n3. Click 'Create New API Key'\n4. Copy the generated key",
+            "button_label": "Get API Key"
+          }
+        }
+      ]
+    }
+  },
+  "auth": {
+    "type": "api_key",
+    "instructions": "Get a Mem0 API key at https://app.mem0.ai/dashboard/api-keys"
+  },
+  "contributor": {
+    "name": "Mem0",
+    "github": "mem0ai",
+    "url": "https://mem0.ai"
+  },
+  "links": {
+    "repository": "https://github.com/mem0ai/mem0-mcp",
+    "homepage": "https://mem0.ai",
+    "documentation": "https://docs.mem0.ai/platform/mem0-mcp"
+  },
+  "platforms": [
+    "all"
+  ],
+  "capabilities": {
+    "tools": true,
+    "resources": false,
+    "prompts": false,
+    "read_only_mode": false
+  }
+}