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Midplane

Application, cloud and data security · by Midplane

A thin access layer / MCP server that sits in front of Postgres, enforcing query-level policies, column masking, and audit logging.

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Where it ranks

Current edition · updated Oct 20, 2026

What it does

A thin access layer / MCP server that sits in front of Postgres, enforcing query-level policies, column masking, and audit logging.

  • Safe Postgres access for AI agents
  • Query-level policy enforcement
  • Column masking for sensitive data
  • Append-only audit logging of all queries
Category
Application, cloud and data security
Users
Teams using AI agents that query Postgres databases
Public API
Not offered
Deployment
Self-hosted, On-premises

Not yet disclosed: platforms, languages and support channels.

Pricing

  • Free plan$0

Prices as published by Midplane, checked Oct 2026.

Security and compliance

As reported by Midplane. Ask for audit reports before you buy.

  • AES-256-GCM encryption for database credentials via per-region AWS KMS keys with envelope encryption
  • Machine tokens stored as HMAC-SHA256 digests with constant-time comparison
  • Postgres row-level security for audit log tenant isolation
  • Browser hardening headers: Content-Security-Policy (frame-ancestors 'none'), X-Frame-Options (DENY), X-Content-Type-Options (nosniff), Referrer-Policy (strict-origin-when-cross-origin), Permissions-Policy (camera/microphone/geolocation disabled), Strict-Transport-Security (2-year max-age, includeSubDomains, preload)
  • Per-agent least-privilege scoping with fail-closed on no-grant credentials
  • Per-region cryptographic key separation for credentials and tokens
  • Strictly necessary cookies only; no advertising or third-party advertising trackers

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