"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
Public read-only remote MCP server for the maxand98 corpus, supporting OAuth and anonymous access. Source: https://github.com/maxand98/personal-website. Contact: maxand98@gmail.com.
Free, read-only context retention review for RAG and agent workflows. Supply sanitized text with stable source IDs and a token budget; receive a source-linked context pack, token estimates, and exact excerpt-retention results. No web fetching, account access, model calls or payments. Checks text selection, not factual truth or semantic completeness. No API key required.
Brave Search MCP — independent web index (no Google/Bing dependency)
PDF/Word/Excel/HTML to clean Markdown for LLMs and RAG. Keys $19/mo; 50 free calls a day.
Public read-only recipe library for AI agents. Search 29 Hebrew workflow recipes and retrieve exact full text with list_recipes and get_recipe. Six recipes have full English companions; other English fields are labeled summaries. Streamable HTTP, no API key. Docs: https://ofershap.github.io/agent-success-hub/mcp-connect.md . Official registry: io.github.ofershap/recipe-library.
Persistent semantic memory storage, associative recall, and recent memory index by namespace.
Durable, versioned memory for AI assistants. Remote memory needs a Pastepile subscription.
Docsieve: crawl a website into clean Markdown, RAG chunks and llms.txt; re-runs only changed pages.
Remote ChromaDB vector database MCP server with streamable HTTP transport
One memory you own, shared by Claude, ChatGPT, Gemini, Muse and any remote MCP client.
Convert PDF documents to Markdown for AI agents through an authenticated remote MCP server.
Persistent memory, hybrid search and a goal graph for AI agents, over stdio or remote HTTP.
Answers questions about a business using its indexed website content, with cited sources.
Illumora Craft — evidence-augmented prompt compile for agents via remote MCP (OAuth) or local stdio.
Knowledge graph ingestion, entity search, ontology analysis, and CoSync scoring.
Paid remote MCP for context budgets, progressive loading, schema slimming, and readiness.
Search multiple indices, index data, and get personalized recommendations
Knowledge graph ingestion, entity search, ontology analysis, and CoPass scoring.
9 remote MCP servers on Cloudflare Workers for AI agents. Free tier + Pro API keys.
Medical RAG: semantic search for clinical guidelines, drug interactions, diagnoses & EHR data.
