A2db
Let your agent run safe read-only SQL and batch queries across common databases while you debug schema and data issues.
Overview
a2db is a MCP server for the Build phase that offers safe read-only SQL and batch queries across five databases for AI agents.
What is this MCP server?
- Read-only database access designed safe for AI agents
- Support for 5 database engines per server description
- Batch queries for multi-statement investigation
- SQLGlot-powered SQL handling in the stack
- 5 database engines supported per server description
- Batch queries and SQLGlot noted in package summary
- PyPI a2db version 0.2.1 with stdio via io.github.agentic-eng/a2db
Community signal: 2 GitHub stars.
What problem does it solve?
Solo builders either grant agents dangerous DB credentials or stop and run SQL manually when debugging backend data issues.
Who is it for?
Indie backend developers who want agent-assisted SELECT workflows on dev or staging databases during implementation.
Skip if: Use cases requiring write paths, schema migrations by the agent, or unsupported proprietary databases outside the five-engine set.
What do I get? / Deliverables
Your agent can execute read-only and batch SQL across supported engines so schema and data debugging stays in the coding session.
- Read-only query results and schema context inside the agent
- Batch SQL execution for multi-step data investigation
- Safer agent DB access than handing out full write credentials
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Journey fit
Database inspection and query assistance belong to build-time backend work before you rely on production-only access patterns. Read-only SQL against app data is classic backend integration and diagnostics, not frontend or launch distribution work.
How it compares
Read-only multi-DB MCP connector, not an ORM code generator or full DBA automation skill.
Common Questions / FAQ
Who is a2db for?
Solo builders and small teams who want AI coding agents to inspect relational data safely with read-only SQL on supported databases.
When should I use a2db?
Use it in backend build and debug when you need schema discovery, data validation, or batch read queries without write risk.
How do I add a2db to my agent?
Install PyPI package a2db, configure read-only connection URLs per database in MCP settings, register the stdio server, and query via agent tools.