Schemabrain vs Midplane

In-depth architectural comparison of the Schemabrain and Midplane MCP servers. Compare execution transports, security boundaries, tool capabilities, quality scores, and ready-to-paste client installation snippets for Claude, Cursor, Windsurf, and VS Code.

Which MCP Server Should You Choose?

Choose Schemabrain when:

• You need dedicated capabilities in the Databases domain.
• You prefer local stdio subprocess transport architecture.
• Your security boundary fits: No auth required (Free / Open Source).
• Primary tools included: Read-only Postgres access, Definition-based query compilation, PII and secret-category refusal.

Explore Schemabrain Details

Choose Midplane when:

• You need dedicated capabilities in the Databases domain.
• You prefer local stdio subprocess transport architecture.
• Your security boundary fits: No auth required (Free / Open Source).
• Primary tools included: AST-checked Postgres statements, Per-table access policies, Query-level masking.

Explore Midplane Details

Feature & Specification Comparison

Specification	Schemabrain Arun-kc Databases	Midplane Databases
Summary	Read-only trust layer for Postgres: the agent never writes SQL — twelve tools compile it from definitions you control, PII and secret categories are refused before the query runs, and every call lands in a tamper-evident SHA-256 audit chain.	Safe-by-default SQL guardrails for AI agents: AST-checked queries, per-table policy, audit log.
Category & Scope	Databases

Tools & Capabilities Breakdown

Ready-to-Paste Client Configurations

Paste either (or both) of these JSON server blocks into your client config file (e.g. claude_desktop_config.json or ~/.cursor/mcp.json).

{
  "mcpServers": {
    "arun-kc-schemabrain": {
      "command": "uvx",
      "args": [
        "schemabrain"
      ]
    }
  }
}

{
  "mcpServers": {
    "midplane": {
      "command": "npx",
      "args": [
        "-y",
        "midplane"
      ]
    }
  }
}

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