"Proton VPN" matching MCP servers:

A Model Context Protocol server that provides tools for querying SPARQL endpoints, with specialized support for Proto-OKN knowledge graphs hosted on the FRINK platform.

Provides a local-first, provenance-aware memory layer that enables MCP-capable AIs to store, recall, validate, and reason over facts with contradiction detection, trust weighting, deduplication, and encryption, supporting offline private operation without GPUs or API keys.

MCP server that provides programmatic access to the SOLVE-IT digital forensics knowledge base, enabling LLMs to query, navigate, and search forensic techniques, weaknesses, mitigations, objectives, and citations.

Enables AI agents to search and retrieve source-grounded memory records from a local Markdown vault and SQLite index, and to build bounded task contexts through stdio MCP. Supports normal and bounded tool modes while respecting scope, lifecycle status, and response limits.

Privacy-first AI memory system with MCP server for managing user-authored memories, enabling AI agents to read/write memories with fine-grained vendor access control.