SAFEPENTEST

Services · HARDENING

MCP Server Security Bastion

A hardening blueprint and reference implementation for your Model Context Protocol servers: token proxying, strict schemas and tool allowlists. Once deployed, the hardened configuration goes through a separate adversarial validation phase.

USD 4,500 USD · or 800/mo

Technical scope

What we test.

For enterprise engineering teams exposing internal tools and data to models through MCP.

Hardening blueprint

A design for your environment:

  • Authorization model for tools and resources
  • Session and credential binding
  • Transport security
  • Sandboxing of tool execution

Reference implementation

Components your team deploys and owns:

  • Access-token proxy between clients and servers
  • Schema validators for tool inputs and outputs
  • Tool and resource allowlists
  • Audit logging of tool calls

Validation

Design and testing run as separate phases:

  • Adversarial testing of the deployed configuration
  • Independent third-party validation on request, for audit requirements
  • Retest of the deployed configuration
  • Monthly plan: ongoing review as servers and tools change

Methodology

Autonomous reconnaissance. Human exploitation. Human validation.

AI-assisted reconnaissance maps the attack surface. Security engineers build the attack paths, exploit them and validate every finding before it reaches your report.

See our methodology

Deliverables

  • Hardening blueprint document
  • Reference implementation, delivered to your repository
  • Validation report
  • Retest validation

No test starts without a contract, a defined scope and written authorization. Customer data, code, configurations and credentials are not submitted to public third-party commercial LLM services as part of the assessment workflow.

Scope your MCP Server Security Bastion engagement.

Tell us about the system, its architecture and your deadline. We reply with a proposed scope and a fixed price, usually within one business day.