README: Add information about the CrateDB SQLAlchemy dialect

Author: amotl

README.md

@@ -12,7 +12,7 @@ Let Claude be your database expert! MCP Alchemy connects Claude Desktop directly
 - Analyze large datasets and create reports
 - Claude Desktop Can analyse and create artifacts for very large datasets using [claude-local-files](https://github.com/runekaagaard/claude-local-files).
 
-Works with PostgreSQL, MySQL, MariaDB, SQLite, Oracle, MS SQL Server and a host of other [SQLAlchemy-compatible](https://docs.sqlalchemy.org/en/20/dialects/) databases.
+Works with PostgreSQL, MySQL, MariaDB, SQLite, Oracle, MS SQL Server, CrateDB and a host of other [SQLAlchemy-compatible](https://docs.sqlalchemy.org/en/20/dialects/) databases.
 
 ![MCP Alchemy in action](https://raw.githubusercontent.com/runekaagaard/mcp-alchemy/refs/heads/main/screenshot.png)
 
@@ -103,6 +103,23 @@ Add to your `claude_desktop_config.json`. You need to add the appropriate databa
 }
 ```
 
+### CrateDB
+```json
+{
+  "mcpServers": {
+    "my_cratedb": {
+      "command": "uvx",
+      "args": ["--from", "mcp-alchemy~=2025.04", "--with", "sqlalchemy-cratedb>=0.42.0.dev1", "mcp-alchemy"],
+      "env": {
+        "DB_URL": "crate://user:password@localhost:4200/?schema=testdrive"
+      }
+    }
+  }
+}
+```
+For connecting to CrateDB Cloud, use a URL like
+`crate://user:[email protected]:4200?ssl=true`.
+
 ## Environment Variables
 
 - `DB_URL`: SQLAlchemy [database URL](https://docs.sqlalchemy.org/en/20/core/engines.html#database-urls) (required)