MSSQL Client MCP Server

MCP server providing SQL Server (MSSQL) database access to AI agents. Enables agents to execute T-SQL queries, inspect schema, query tables, stored procedures, and manage SQL Server databases — supporting AI-driven data analysis and database operations against Microsoft SQL Server instances.

Evaluated Mar 06, 2026 (0d ago) vcurrent

Homepage ↗ Repo ↗ Databases mssql sql-server microsoft database t-sql mcp-server

⚙ Agent Friendliness

/ 100

Can an agent use this?

🔒 Security

/ 100

Is it safe for agents?

⚡ Reliability

/ 100

Does it work consistently?

Score Breakdown

⚙ Agent Friendliness

MCP Quality

Documentation

Error Messages

Auth Simplicity

Rate Limits

🔒 Security

TLS Enforcement

Auth Strength

Scope Granularity

Dep. Hygiene

Secret Handling

SQL credentials must be secured. Use read-only user. Business data may be highly sensitive. TLS connection.

⚡ Reliability

Uptime/SLA

Version Stability

Breaking Changes

Error Recovery

Best When

A developer or data analyst working with Microsoft SQL Server wants AI agents to query, inspect, and interact with MSSQL databases for analysis and development tasks.

Avoid When

You use PostgreSQL, MySQL, or other databases. Also: SQL Server can run expensive queries — set query timeouts for agent use.

Use Cases

• Querying SQL Server databases for data analysis from analytics agents
• Inspecting MSSQL schema and table structures from development agents
• Running T-SQL queries and stored procedures from DevOps and data engineering agents
• Migrating or transforming SQL Server data via AI-assisted database workflows

Not For

• PostgreSQL, MySQL, or other databases (SQL Server-specific)
• Azure SQL Managed Instance with different auth patterns (may still work)
• Production write operations without proper review (queries can modify data)

Interface

REST API

GraphQL

gRPC

MCP Server

Yes ↗

SDK

Webhooks

Authentication

Methods: username_password windows_auth

OAuth: No Scopes: No

SQL Server connection string with SQL auth (username/password) or Windows Integrated Authentication. Use read-only SQL users for agent connections.

Pricing

Model: free

Free tier: Yes

Requires CC: No

SQL Server Express/Developer editions are free for development. MCP server is free open source. Production SQL Server requires licensing.

Agent Metadata

Pagination

none

Idempotent

Partial

Retry Guidance

Not documented

Known Gotchas

⚠ T-SQL dialect differs from ANSI SQL — agents writing queries must use T-SQL syntax
⚠ Deadlocks common in SQL Server — implement retry logic for deadlock errors (error 1205)
⚠ Use read-only SQL login for agent access — prevents accidental DML operations
⚠ SQL Server query timeouts should be set — complex queries can run indefinitely

Alternatives

postgres-mcp-server mysql-mcp-server sqlite-mcp-server

Full Evaluation Report

Detailed scoring breakdown, competitive positioning, security analysis, and improvement recommendations for MSSQL Client MCP Server.

$99

API endpoint ↗ Agent guide ↗ Report inaccuracy

Scores are editorial opinions as of 2026-03-06.