Is a self-hosted MCP server safe to point at production data?

It can be, if you do the work: connect with a read-only database login, grant it only the tables it needs, use views to drop sensitive columns, and keep the connection string off shared machines. The risk is that each of those steps lives with whoever set the server up, and nothing records who asked what.

Can I use a self-hosted MCP server with Claude or ChatGPT on the web?

Only if it is reachable from the internet. Anthropic’s help centre says Claude connects to a custom connector from Anthropic’s cloud, not from your device. A server on your laptop works with desktop and editor clients that start it locally; for the web apps you need to host it and add sign-in yourself.

Does Datablare run on my own servers?

Datablare is hosted in India. Deployment in your own cloud is available as an Enterprise conversation, scoped together. If your data cannot leave your network at all and you want no vendor, a self-hosted server is the more natural fit.

Can one MCP server cover several databases?

Some open-source servers can hold several connections; many are built for one engine. In Datablare, every database in a project, on any of the seven supported engines, sits behind the project’s single MCP link with one access policy and one audit log.

Self-Hosted MCP Server vs Datablare

Pick the one that fits the job

A self-hosted server may fit better if you want

One developer querying a local or development database from their own machine.
Teams that want no subscription and full control of the code they run.
Data that must never pass through any outside service, where a hosted gateway is ruled out.
Engines Datablare does not support yet, such as SQLite.

Datablare may fit better if you want

A team, including non-technical people, asking questions from Claude or ChatGPT on the web.
Companies that need to know who asked what, and to cut one person off without touching anyone else.
Several databases, on different engines, behind one link with one set of rules.
Anyone who would rather not run, secure and patch an internet-facing server.

Datablare and a self-hosted server, side by side

Datablare compared with Self-hosted MCP server, feature by feature
Feature	Datablare	Self-hosted MCP server
Cost	Datablare Free ₹0; Team ₹7,999 a month; Business ₹24,999 a month (excl. GST). No seat limit	Self-hosted MCP server Free, open-source software; you pay for any server and for the time to run it
Where it runs	Datablare Hosted in India by Datablare; your own cloud is an Enterprise conversation	Self-hosted MCP server On your laptop or a server you control
Read-only	Datablare Enforced twice: a SQL guard, then a read-only session (or an always-rolled-back transaction on SQL Server and Snowflake)	Self-hosted MCP server Varies by server: some use a read-only transaction or a read-only mode; a read-only database login is the backstop
Choose tables, hide columns	Datablare Per project, in the app, on every plan	Self-hosted MCP server Usually through database grants and views you maintain
Who is asking	Datablare Each person signs in with OAuth; manager, analyst and viewer roles; analysts can be limited to specific data sources	Self-hosted MCP server Usually one connection string, used by whoever runs the server
Audit log	Datablare Every query: who asked, the SQL, tables, rows, timing. CSV export on Team and above	Self-hosted MCP server Whatever logging you add
Removing access	Datablare Revoke a person’s key or connected app immediately	Self-hosted MCP server Change the database password, or stop the server
Claude and ChatGPT on the web	Datablare One remote MCP link per project, with OAuth sign-in built in	Self-hosted MCP server Needs a server reachable from the internet, plus the sign-in you set up
Several databases	Datablare Many databases and engines behind one project link; one SQL statement runs on one database and the agent combines answers	Self-hosted MCP server Often one server per database; some, such as DBHub, take several connections in one config
Database credentials	Datablare Encrypted at rest by Datablare and never shown back	Self-hosted MCP server In a config file or environment variable on each machine that runs the server

Based on each product’s public pages as of October 2026. Sources are listed at the bottom of this page.

What a self-hosted database MCP server is

A database MCP server is a small program that speaks the Model Context Protocol: it shows an AI agent your tables and runs the SQL the agent writes. A self-hosted one is open source and runs wherever you start it, usually on your laptop, with a connection string as its main setting. The archived PostgreSQL reference server, for example, started with npx -y @modelcontextprotocol/server-postgres and ran every query in a READ ONLY transaction. DBHub, an MIT-licensed server from Bytebase, covers six engines, can hold several connections in one file, and offers a read-only mode, row limits and timeouts.

For one developer on a local or development database, that is hard to beat: free, quick to start, code you can read, and nothing passing through a third party.

What changes when a whole team uses it

Credentials spread. A local server needs the connection string on every machine that runs it.
Read-only depends on the setup. Some servers use a read-only transaction or flag, some don’t. The database login you hand over is the real limit, so it must be a read-only one.
No shared record. Nobody can see, in one place, who asked which question and what SQL ran.
Access is all or nothing. Removing one person usually means changing a password everyone shares.
The web apps need a public server. Anthropic’s help centre says Claude connects to custom connectors from Anthropic’s cloud, not your device. Hosting the server, adding sign-in and patching it become your job.

How Datablare handles the same jobs

Each Datablare project gets one remote MCP link for Claude, ChatGPT, Cursor, VS Code and Claude Code. People sign in with OAuth as themselves, so every query in the audit log carries a name, and one person’s access can be revoked without touching anyone else’s. Read-only is enforced twice, by the SQL guard and by the database. You choose tables and hide columns per project, and private databases are reached through an SSH tunnel.

One project can hold, say, a PostgreSQL orders database and a MySQL CRM behind the same link; each SQL statement runs on one database and the agent combines the answers. These controls help you meet DPDP, GDPR, HIPAA, CCPA/CPRA and PDPL obligations. Details are on how it works and security.

Using both

Many teams keep a self-hosted server for local development and a gateway for anything shared. Datablare’s Free plan covers one project with two data sources, enough to try it on the same database. See pricing or start free.

Datablare vs a self-hosted database MCP server