Best AI AI Skills & MCP Servers

Slack MCP without OAuth. 21 tools (16 read/write Slack + 2 workflow profile primitives + 3 hosted-brain upgrade stubs). Free OSS or hosted (free tier no card; $9/mo Pro = unlimited; morning DM rolling out Q2 2026).

Session context save and restore — track loaded files and operations, persist sessions to disk.

DOOMSCROLLR MCP server — AI agents build owned-audience websites, affiliate storefronts, product drops, newsletters, tickets, and subscriber capture for the audience layer of the AI agent world.

Search and query government open-data portals (Socrata SODA API) via MCP. STDIO or Streamable HTTP.

MCP server that gives Claude Desktop full access to your email through Mozilla Thunderbird. 12 high-level tools: search, read, compose, reply, attachments, folders.

MCP server for MapleFlow — exposes AI, utility, and verify endpoints as tools

MCP server for web scraping, structured data extraction, and screenshots — give Claude, Cursor, Windsurf, and AI agents the ability to scrape any website with automatic anti-bot bypass

MCP server for Alexandria — 171 expert AI agents across 22 teams, accessible from Claude Desktop and Claude Code

MCP server for AI stem separation — remove vocals, isolate instrumentals, build karaoke tracks, or split audio into vocals, drums, bass, piano, guitar, and other stems from local files or YouTube URLs. Works in Claude Desktop, Cursor, Cline, Windsurf, Zed

Token-efficient browser MCP server — structured web pages for AI agents, not raw accessibility dumps

Developer context continuity system — temporal knowledge graph for AI coding agents via MCP. Inspired by Vannevar Bush's 1945 concept of a machine that remembers everything.

Search bills, legislators, committees, and events across all 50 US states, DC, and Puerto Rico via MCP. STDIO or Streamable HTTP.

MCP server for the AdButler ad management API. Manage advertisers, campaigns, zones, creatives, placements, VAST video, programmatic, targeting, drafts, contracts, and reports from Claude, ChatGPT, Cursor, Windsurf, and any other MCP client.

File operations — move, copy, delete, rename.

Local MCP credential broker for coding agents (Claude Code, Codex, Gemini, and any other MCP-stdio client). Values never enter the AI transcript — the agent requests secrets through a schema, a localhost form lets you type them, and they land in Vault, .e

TypeScript MCP server boilerplate with STDIO and HTTP transport support, CLI tools, and extensible architecture

Community MCP server for Airtable. Schema inspection, table / field / view CRUD (including merge-safe filter / sort / group updates), formula validation, and extension management. Not affiliated with Airtable Inc.

AI code impact analysis MCP server — dependency graphs, cascade detection, and a mandatory build gate for AI coding agents

Agentic production system for Ableton Live 12 — 465 tools, 56 domains, 44 semantic moves. Device atlas (5264 devices, 120 enriched, 7 indexes), Splice intelligence (gRPC + GraphQL describe-a-sound + preview + collections + presets), 9-band spectral percep

Declarative MCP Server Engine — define tools, resources, and prompts in vurb.yaml. The docker-compose for MCP servers.

Compress text output to save tokens — strip comments, collapse whitespace, abbreviate patterns.

Model Context Protocol server for Anki - enables AI assistants to interact with your Anki flashcards

Mermaid to assets. Source code to maps. MCP for agents.

MCP server for GEO (Generative Engine Optimization) analysis — check any domain's AI-readiness