The real catalog of tools for AI agents

Search and reason over your Obsidian-style Markdown vault, right from ChatGPT.

Self-maintaining knowledge vault: figure-level search, auto-wikilinks, and memory compression.

Your own notes, searched and cited by your AI — local-only, allowlist-gated, capped, and logged.

Second brain en Obsidian: notas, conceptos como nodos, resurfacing y salud del grafo. En castellano.

Query one person's second brain: contacts, companies, notes, files and connected accounts.

Company brain for AI agents — temporal knowledge graph search, exploration, and durable memory.

AI knowledge graph for architecture, portfolio, and digital strategy management.

Gene expression experiments and the brain structure ontology from the Allen Institute's Brain…

Repository knowledge graph MCP server for codebase understanding and debugging.

UTC second

Cited company knowledge from Slack, meetings, transcripts, and decisions

A business's marketing memory: campaigns, results, decisions, brand and audience knowledge.

Free: turn your AI chats into spaced-repetition vocabulary. 13 tools, reads and writes.

Governed company memory: search decisions, rules and client facts; propose updates for review.

Expert knowledge base for sales, negotiation, strategy, operations, and risk.

Personal wiki and memory layer for AI assistants. Persistent, structured memory across sessions.

Getting Things Done (GTD) board: capture to Inbox, next actions by context, projects, waiting-for.

Trade-verified steel grade properties, substitution verdicts, and mill-cert guidance for AI agents.

Codebase graphs, caller impact analysis, and recorded project context for AI coding agents.

Recall (recall.it) — your AI knowledge base / 'second brain'. Via the official API: semantic search