ThinAir Data MCP Server

The only MCP database server for PostgreSQL, MySQL, and SQL Server in one session — 23 dialect-aware tools across 4 tiers, from schema introspection to cross-database compare, query firewall, PII scanning, and N+1 detection. Read-only by design.

What It Does

ThinAir Data is a Model Context Protocol (MCP) server that gives AI agents secure, read-only access to your databases — no custom backend required. Three independent enforcement layers (SQL guard, session READ ONLY, optional per-connection custom firewall) reject INSERT / UPDATE / DELETE / DROP / ALTER before they hit your DB. Safe to point any agent at production.

• Multi-database — PostgreSQL, MySQL, SQL Server in a single session. Cross-database compare with one tool call.
• Read-only by design — three-layer enforcement; write statements never reach your DB.
• Dialect-aware — every tool understands SELECT TOP 10 (mssql) vs LIMIT (others) and routes syntax correctly per connection.
• Tiered capability — 23 tools across 4 tiers: schema introspection, query execution + history, EXPLAIN/optimization, anomaly detection, PII scanning, N+1 detection, query firewall, cross-DB compare.
• Connections are managed at runtime — added per-tenant via the add_connection tool after sign-in. Never an env var or install-time config.

Product Links

• Main: https://data.thinair.co
• Connect a database: https://data.thinair.co/connect
• Docs: https://data.thinair.co/docs/getting-started
• Pricing: https://data.thinair.co/checkout

Tools (selected — full list of 23 in docs)

Tool	Tier	Description
list_connections	discover	List connected databases with names + dialects
describe_schema	discover	Get schema, columns, indexes, FKs across any connection
query_sql	discover	Execute a parameterized read-only SQL query
query_history	build	Recent queries with timing, row counts, status
data_profile	build	Distributions, null rates, cardinality on a table
cross_db_query	architect	Run the same query across 2–4 connections (regional/dialect compare)
detect_anomalies	architect	Statistical outliers in row growth, latency, value distributions
pii_scan	architect	Scan a table for PII patterns (SSN, email, phone, credit card)
find_n_plus_one	architect	Identify N+1 query patterns in query_history
query_firewall	architect	Per-connection custom-block rules (deny specific tables/queries)

add_connection, query_optimize, explain_query, suggest_queries, generate_migration, watch_table, saved_queries, impact_analysis, and others round out the 23-tool surface.

Quick Start

Claude Desktop, Cursor, Windsurf — OAuth (recommended, keyless)

Add to your client's MCP config (e.g. ~/Library/Application Support/Claude/claude_desktop_config.json):

{
  "mcpServers": {
    "thinair-data": {
      "url": "https://data.thinair.co/mcp"
    }
  }
}

The OAuth flow completes at first use — no manual token setup required. After sign-in, your agent calls add_connection to register a database with its DSN — connections are tenant-scoped and reusable across sessions.

API key (for non-OAuth clients)

{
  "mcpServers": {
    "thinair-data": {
      "url": "https://data.thinair.co/mcp",
      "headers": {
        "Authorization": "Bearer ta_live_..."
      }
    }
  }
}

Get a key at https://data.thinair.co/connect.

npx (CLI / scripts)

npx -y @thinairtelematics/data

Prints a config block to stdout. OAuth-keyless by default.

Supported Databases

Database connections are added at runtime via the add_connection MCP tool — pass the DSN once, the connection becomes a named resource the agent can reuse across sessions. Three dialects supported:

Database	Connection string format
PostgreSQL	postgresql://user:pass@host:5432/db
MySQL	mysql://user:pass@host:3306/db
SQL Server	sqlserver://user:pass@host:1433/db

You do not put a DSN in your client's config. The add_connection tool is how connections enter the session.

Example Usage

Once connected, ask your AI:

• "Show me all rows that haven’t updated in the last 24 hours across staging and prod"
• "What are the top 10 slowest queries this week?"
• "Scan the customers table for PII patterns"
• "Which tables have the most N+1 query exposure?"

npm Package

npmjs.com/package/@thinairtelematics/data

Previously published as thinair-data (now deprecated in favor of the scoped package).

License

MIT © ThinAir Telematics