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Is there a hosted MCP server for databases?

Recipe verified on Ran on the public demo (read-only)
Short answer

Yes: mcpdata is a hosted database with its MCP server built in, at https://<instance>.mcpdata.org/mcp. There's nothing to install or run: connect your assistant with the address and a key, and it can list, query and write tables and build reports.

Steps

  1. Connect your assistant to the public demo. It's a read-only instance with 10 million synthetic orders, so you can try this before you have your own. In Claude Code: 
    claude mcp add --transport http mcpdata-demo https://demo.mcpdata.org/mcp --header "Authorization: Bearer cdb_live_PkVoldus8qcE-hqffjajNZzQwiA7rTHMoR4RLSAxsCE"

    The key is public on purpose: it can only read the demo's sample data. For Claude Desktop, Cursor and other apps, see Connect your AI.

  2. Ask your question. Give your AI this prompt:
    Using mcpdata, what tables are there, and what does Demo.Customers contain?
What your AI does: the tool calls it makes for this prompt, and what came back
list_tables() → 3 tables: Demo.Orders, Demo.Products, Demo.Customers
describe_table(table_name="Demo.Customers") → 6 columns, 200,000 rows
What you should get · the recipe's real result from its last run
tablerowslast_updated
Demo.Orders10,005,0002026-10-27 20:05:07.103000
Demo.Products2,0002026-10-27 19:50:37.321000
Demo.Customers200,0002026-10-27 19:50:36.983000

Synthetic data: the demo's orders are generated, not real customers.

Ask Claude with this prompt Ask ChatGPT with this prompt

The assistant needs mcpdata connected (step 1) to run the query.

Why this works

A self-run MCP server for a database means installing it, keeping it running, and exposing your database to it. A hosted one is just an address. Here the storage, the query engine and the MCP server are one service, with roles, per-instance encryption keys and an audit log.

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