"Remote MCP Server Registry/Index" matching MCP connectors:
GET /v1/connectors – MCP directory API referenceMatching Connector Tools:
Engram is a persistent, long-term memory layer for AI agents and assistants. Claude, ChatGPT, Grok, Cursor and any MCP client share one memory, stored as plain markdown notes: your knowledge base, second brain and AI context in one place. No extraction step: the memory is the note itself, so you can read exactly what your AI remembers and fix it. Edit your memory in Obsidian (real-time sync), the web app, or on your phone. Hybrid keyword + semantic search (RAG over your notes) finds exact strings like error messages, config keys and IDs. Remote MCP server over Streamable HTTP with OAuth 2.1; notes encrypted at rest. Https://engram.page https://youtu.be/rwnPeZ-8Lqo?is=NI-N7BduydGAiZlF https://github.com/engram-app/Engram
graphrag-ts is a TypeScript GraphRAG engine on PostgreSQL/pgvector, served as a Streamable HTTP MCP endpoint. Public read tier needs no credentials (20 req/min per IP): integrity_paper_status, retraction_propagation, integrity_evidence_audit. A bearer key unlocks graph query, global map-reduce, index jobs and memory writes. Free browser demo: https://huggingface.co/spaces/ashesborn6/retraction-status
Zero-install Remote MCP server connecting Cursor and Claude directly to verified engineering workarounds and community consensus
Persistent memory and cross-session learning for AI coding assistants (hosted remote MCP).
Find where AI agents talk to each other: watched boards, live status, levels and how to use them.
FixMyPrompt is a remote MCP server for coding agents. It saves the steps your agent worked out as project memories and fetches them in later sessions, scores and rewrites prompts, and checks CLAUDE.md and AGENTS.md files. Works with Claude Code, Codex and Cursor. Free plan available.
Shared, tested playbooks (recipes) for AI agents. Your agent searches recipes for real tasks (inbox triage, lead research, freelance gig hunting, content workflows), runs them, and reports results; weaker versions roll back only after failures from several independent sources plus an automated spam check. Free, no install, no email needed: one remote MCP URL.
Neutral verification registry for femtech (women's health) information sources. It indexes sources by provenance, authority tier, jurisdiction, and machine-readable compensation disclosure. No diagnosis, no efficacy claims, no referral fees.
Intelligence for your AI agents: what they need to know, at the moment they decide. NEXUS connects Claude Code, Claude, ChatGPT, Cursor and OpenClaw to one shared record of your decisions, rules and past incidents, so an agent doesn't repeat a costly mistake or undo what was already decided. What one agent learns, the others already know. Every item is graded (measured, reported or inferred), outdated facts are marked as superseded, and contradictions are flagged. Before an important action, agents can call antes_de_actuar to get the rules that apply. Remote server with OAuth. Free plan, no credit card: https://nexus.eblas.link
Cobrain is a hosted Markdown brain your AIs share. Connect Claude, ChatGPT, Claude Code, Codex or any MCP client once (remote MCP with OAuth, no API keys to paste) and they all read and write the same notes. Share one folder with a teammate, read-only or read-write, and their AI reads it too. Permissions are enforced in the database, the same for the web app and for AIs; writes are version-checked so two AIs can't silently overwrite each other. Plain .md, exportable, EU-hosted. Free plan available.
Persistent memory layer that saves and recalls your project context and preferences.
OpenCitations MCP — citation index (COCI + general Index API).
Agent continuity: live continuity index, self-test contract, offline Continuity Proof verification.
Remote MCP to publish, search, and get information. x402 v2 required.
Search and read the aicoolies catalog of AI and developer tools via a remote MCP knowledge graph.
Read and search Karma for AIs: cooperation, moral uncertainty, power, and optional reflections.
Read-only Bicycle Guide registry: published guides, homes, taxonomy, capability spine. No auth.
Read-only Bicycle Guide registry: published guides, homes, taxonomy, capability spine. No auth.
Read-only Wikidata tools and identity evidence. Local optional Google KG; bounded public remote.
Consult 324+ expert personas (Buffett, Jobs, Munger, Torvalds, ...) via 4 read-only registry tools.
Cross-session, cross-device memory for your agent: remember and recall notes. No key to start.
Agent-native spaced-recall system of record. Deterministic dueAt via remote MCP for Muse/any agent.
Trusgent MCP — Trust Layer for AI agents. HK registry + Agent Cards. Default: get_merged_profile.
Remote MCP server for The Colony — a social network for AI agents (posts, DMs, search, marketplace).
Keynodex Memory gives coding agents (OpenCode, Claude Code, ChatGPT, Codex) persistent memory across sessions. Connects via standard remote MCP over HTTP with browser-based Google OAuth. No API keys required.
Persistent semantic memory storage, associative recall, and recent memory index by namespace.
Durable, versioned memory for AI assistants. Remote memory needs a Pastepile subscription.
Remote MCP server for full read/write access to a Zotero library
Official remote MCP server for Archivist AI TTRPG campaign memory: characters, sessions, and more.
Wine cellar manager: bottles, racks, drink windows, pairings and a shared wine registry.
Remote MCP server for saving, searching, syncing, and managing Teak cards.
One memory you own, shared by Claude, ChatGPT, Gemini, Muse and any remote MCP client.
Verified registry of third-party-system knowledge — the external-dependency layer for agent memory.
A planner that keeps itself, with memory across AI agents. Nuto gives AI agents one schedule and shared long-term memory to recall context, record decisions and progress, and schedule follow-ups; connect through remote MCP with browser OAuth. Free to start.
A traveler's portable travel profile and trip plans. It remembers, it does not search or book.
Persistent memory, hybrid search and a goal graph for AI agents, over stdio or remote HTTP.
Remote knowledge base built for teams. Bundled skill induces agents to autonomously record investigations, decisions, and recipes as bite-sized interconnected posts. Forum-style web UI for humans to browse the same graph. Compounds into a dense map of a team's tribal knowledge over time.
Free agent recovery and continuity. Public triage; register for a token to access private memory.
Persistent work tracking for AI agents: tasks, status and history that follow you across machines
Remote MCP server for AIStoryHub: stories, chapters, story bible, Voiceprints, AI generation.
