"Understanding OAuth 2.0 Protocol" matching MCP connectors:

Engram Obsidian Memory SyncAOAuth

io.github.engram-app

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

Multilingual YouTube → Knowledge Pack engine. Paste a video URL and get a structured pack — summary, key ideas, glossary, quiz, transcript with timestamps — in Spanish, Portuguese, German, or English. Anonymous endpoint plus OAuth-gated tools for library search, RAG Q&A on a single pack, and Anki export.

A high-performance, edge-native Data Refinery Engine built on Cloudflare's serverless AI stack (Workers, Workers AI, D1, KV, Vectorize) designed to continuously ingest unstructured data, refine it into pristine machine-readable structured intelligence, compute semantic diffs, and serve it directly to AI agents via the Model Context Protocol (MCP) and REST APIs.

ProfileIDOAuth

com.genuinein

AI-powered career insights from GenuineIN. Securely connects AI assistants to permission-filtered career profiles, education, experience, skills, projects, achievements, and verified credentials through OAuth.

MCP memory server with shared team workspaces, typed knowledge chunks (decision, finding, convention, state, question, reference), role-based access, and cross-tool support for Claude, Cursor, and Codex. The only MCP memory server built for engineering teams. Features automatic deduplication, two-layer retrieval (LLM KB selection + hybrid vector/BM25/RRF fusion), a web dashboard with knowledge graph visualization, and attribution tracking. Zero server-side LLM costs.

Fact-checks generated content against your sources of truth showing what to trust, change, & verify.

Website analyses and Knowledge Packs for the authenticated account via OAuth 2.1 + DCR.

Illumora Craft — evidence-augmented prompt compile for agents via remote MCP (OAuth) or local stdio.

AgenticBIOAuth

io.github.AgenticBIHQ

Connect Claude, Cursor, or ChatGPT to your business data. Ask questions, get answers.