MySQL MCP server: setup, auth, production
Last verified: June 2026· MySQL MCP integration
Community MCP servers existYour relational application database.
What is the MySQL MCP server?
A MySQL MCP server implements the Model Context Protocol and exposes MySQL's capabilities as typed tools an agent can discover and call in the middle of a task. Your relational application database.
Databases are where read-only scoping and a dedicated replica matter most. An agent that can inspect schema and draft queries is transformative for debugging and data questions — but it must never hold write credentials to a primary, and expensive unbounded scans need a statement timeout.
A real MySQL workflow
The agent explores an unfamiliar schema, drafts and explains the join a data question needs, and validates a proposed migration against the real table shapes — against a replica, so exploration never touches serving traffic.
What an agent can do with MySQL
- Have an agent explore schema and draft queries
- Answer data questions against a read replica
- Explain and validate a proposed migration
Read-only is the right default: let the agent observe and reason first, then grant specific write actions deliberately — each behind audit logging and, for anything high-impact, human approval.
Setting up the MySQL MCP server
Create a read-only user scoped to specific schemas and point it at a replica. Set max_execution_time so a heavy exploratory query is bounded rather than open-ended.
Auth: A dedicated read-only user, scoped to specific schemas. Credentials belong in the environment or a secret store — never in the repo or the agent's sandbox. Wiring a server into Claude Code or Cursor is the same for every tool; the step-by-step lives in the MCP connection guide.
The risk to watch with MySQL
An agent with write grants or access to the primary is the risk. Read-only, replica-only, schema-scoped, with a query timeout — in that order of importance.
More broadly, a production-grade MySQL integration needs read-only scoping, query timeouts, and replica-only access. The MCP security checklist applies to every integration — we build servers with these controls baked in.
Troubleshooting
If the MySQL tools don't appear after setup, it's almost always auth or transport. See MCP server not connecting for the step-by-step fix — and note that hosted servers often need OAuth, not a plain API key. To understand how MCP relates to ordinary tool use, see MCP vs function calling.
Frequently asked questions
Is there an official MCP server for MySQL?
Community MCP servers exist. Whichever you use, a production setup needs read-only scoping, query timeouts, and replica-only access.
How does authentication work for MySQL over MCP?
A dedicated read-only user, scoped to specific schemas. Credentials should never live in the sandbox or the repo; route them through your client's secret handling or a vaulted credential.
What can an agent actually do with MySQL?
Have an agent explore schema and draft queries; Answer data questions against a read replica; Explain and validate a proposed migration. Start read-only and add write access deliberately, behind audit logging.
Is it safe to give agents access to MySQL?
Yes, when scoped correctly: least-privilege credentials, read-only by default, audit logs on every call, and human approval for any high-impact action. Read-only scoping, query timeouts, and replica-only access.