ai

Adding a Custom MCP Server to Claude and ChatGPT

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Simon Willison explains how to add a custom MCP (Model Context Protocol) server to Claude and ChatGPT, enabling these chat interfaces to query external data sources like his blog’s database. In Claude, adding an MCP is straightforward via the Connectors menu, while in ChatGPT it requires enabling Developer mode, adding the MCP as a plugin without authentication, and manually activating it for each chat session. However, MCP plugins are not supported in ChatGPT’s Advanced Voice mode.

https://til.simonwillison.net/llms/mcp-in-claude-and-chatgpt

Obsidian AI Second Brain: The Free Self-Organizing Plugin

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Agrici Daniel developed claude-obsidian, a free Claude Code plugin that transforms Obsidian into a self-organizing AI second brain by automatically reading sources, writing linked Markdown notes, and maintaining an index without manual filing. Built on Andrej Karpathy's LLM Wiki pattern, it avoids vector databases and proprietary formats, offering an open-source, data-owned alternative that saves time by compounding knowledge across 15 integrated skills. The latest v1.9 release enhances retrieval accuracy, collaboration safety, and introduces a thinking framework, enabling users to efficiently build and maintain richly connected knowledge bases within Obsidian.

https://agricidaniel.com/blog/claude-obsidian-ai-second-brain

The 21 Best Generative AI Tools in 2026

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Zapier’s 2026 roundup highlights 21 leading generative AI tools that enhance tasks like writing, image and video creation, coding, and automation. These tools, including Jasper for marketing content, Shortwave for email assistance, Notion for knowledge management, and ChatGPT for versatile AI chat, are selected for their quality, versatility, and ease of use, aimed at improving productivity and creative workflows across various domains. Integrations with platforms like Zapier further enable seamless automation and orchestration within tech ecosystems.

https://zapier.com/blog/generative-ai-tools/

Unabyss – Your Complete Context in Every AI You Use

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Unabyss offers a unified, continuously updated context layer that connects and syncs data from multiple apps and AI tools—such as ChatGPT, Claude, Gemini, and VS Code—allowing users to maintain a single, consistent AI context across platforms without re-explaining themselves. By integrating with over 25 applications including Slack, Gmail, Notion, and GitHub, Unabyss pulls and structures live information securely, enabling seamless AI collaboration and context sharing under user control. This context layer supports various use cases for individuals and teams, improving AI interactions by providing richer, up-to-date context that travels across different AI services.

https://unabyss.com/

Omni – Local Semantic Search for Your Mac

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Omni is a native macOS app that provides fast, local semantic search across all file types—including text, code, images, audio, and video—using an on-device embedding model running fully offline on Apple Silicon Macs with macOS 14 or later. It indexes user-selected folders into a local vector database allowing queries by meaning rather than keywords, supports multilingual search, displays folder contents as similarity-based maps, and offers a local API for AI agents, all while preserving privacy with no data leaving the Mac. The app features extensive search filtering, keyboard navigation, incremental updating, and configurable performance and storage options to optimize indexing and search workflows.

https://hanxiao.io/omni/

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