"Configurable Gmail SMTP/Mail Server for Any User with Remote Access" matching MCP servers:

Central user-state database MCP server with durable profile facts and live virtual sensors (stress, room intensity) with configurable smoothing, readable by any agent or smart-home service.

Enables AI harnesses to maintain a persistent memory layer backed by a local SQLite file, providing MCP tools to add, search, deprecate, and synchronize facts without deleting history.

MCP server enabling LLMs to query a local Calibre Content Server for ebook metadata, chapters, and content in HTML or Markdown.

Enables MCP-capable agents to retrieve relevant slices of a user-story knowledge graph (stored in Supabase + pgvector) using three retrieval verbs: find_related, find_crossover, and query_stories.

Manages knowledge graph data synchronized with GitHub repositories, enabling remote storage and collaboration of memory entities, relationships, and observations.

Turns a codebase into a persistent knowledge graph so AI coding agents can answer structural questions about functions, call chains, routes, and cross-service links through graph queries instead of reading files one by one.

Enables recall of promoted team and org knowledge from GitHub repositories via Claude.ai, supporting search and status checks.

Enables MCP clients that support remote servers, such as ChatGPT, to securely search, fetch, list, and optionally create or update objects in a self-hosted Anytype space over HTTPS.

Remote MCP server that exposes context-keeper's rationale store (decisions, pipelines, constraints) over Streamable HTTP, deployable on Cloudflare Workers and usable as a claude.ai custom connector.

Persists Claude Code sessions to Notion as team memory, enabling queryable recall of decisions, work state, and project architecture.

A remote MCP server deployed on Cloudflare Workers for memory storage and retrieval using Mem0, supporting SSE and standard MCP connections.

Enables remote access to Obsidian vaults from Claude.ai and Claude Code without needing Obsidian running, supporting multiple vaults with OAuth 2.1 and static token authentication. Provides note management tools like read, create, edit, delete, and search.

MCP server for Obsidian vaults, optimised for Cursor agents — safe note editing, lean tool surface, direct filesystem access.

A remote MCP server deployed on Cloudflare Workers that integrates with Mem0 to provide memory writing and retrieval tools, compatible with SSE and standard MCP connections.

Self-hosted MCP server that provides remote AI clients with read and write access to Obsidian vaults over HTTPS without needing the Obsidian desktop app running.

Memory bank with Server as SSH support for central knowledge base

Enables interaction with Neo4j graph databases through Cypher queries, supporting both read and write operations, schema exploration, and remote database connections via SSE or STDIO transport protocols.

Provides a semantic memory layer that integrates LLMs with OpenSearch, enabling storage and retrieval of memories within the OpenSearch engine.

Enables agents to query a locally resolved relationship mesh that joins mail, calendar, iMessage, and contacts into one per-person record, providing shared history, open items, recency, drift, and warmest-channel context without sending data off disk.

Experimental read-only MCP for Supabase application data: memory_search, memory_get and memory_list_recent under user-bound PostgreSQL RLS. Setup and demo: https://github.com/jryski/Supabase_user_MCP/blob/main/docs/GETTING_STARTED.md . Public preview is POSIX-only and synthetic-only; native Windows, hosted OAuth, one-click installation and writes are not available.