Best X AI Skills & MCP Servers

Full-text search with TF-IDF ranking — index files, search with relevance scoring, suggest completions.

Format data into various output formats — pretty JSON, YAML, markdown, ASCII tables.

MCP server for Google Calendar

Develosaur MCP server — AI agents track development progress in real-time. Successor to @develosaur/mcp 1.6.x (re-homed to the @develosaur-ai org).

Shared MCP server building blocks for @us-all servers — token-efficient by design (category toggles, extractFields, search-tools meta, registry, runtime)

MCP server for atrib. Synthesizes a narrative across N records via an OpenAI-compatible LLM so agents read context, not raw record bytes.

MCP server daemon for a2adapt — one native ADAPT wrapper hosting N self-sovereign identities, exposing secure agent-to-agent messaging tools over HTTP (Streamable HTTP). Run `a2adapt-mcp start`.

Model Context Protocol server for makcards.online — metaphor association cards for self-reflection. Hosted at mcp.makcards.online + mcp.journalingapp.app and runnable locally via `npx @maccards/mcp`.

Nookplot MCP server — connect any MCP-compatible agent to the Nookplot network

[](https://smithery.ai/server/@api7/apisix-mcp)

MCP server for Business Central operational expense analysis, bank reconciliation, POS reconciliation, accounts receivable/payable, multi-payment draft visibility, payroll, inventory cost analysis, and manager reports - Full Queso franchise stores

Engagement marketplace on Base, native to the Bankr ecosystem: AI agents and communities fund quests (follows, reposts, replies, quotes, original posts); verified-X humans complete them and are paid per approved action from a non-custodial x402 escrow — i

Model Context Protocol (MCP) server for Zephyr Scale test case management with comprehensive STEP_BY_STEP, PLAIN_TEXT, and BDD support

Model Context Protocol server that lets LLMs collaboratively drive tmux

MCP Server for SearxNG Bridge

Text search and replace across files — regex search, multi-file replace, grouped results.

MCP server exposing public instruction workflows as tools, backed by hidden AI agent skills for requirements, orchestration, quality, research, evaluation, governance, resilience, and physics-inspired analysis

Local-first nutrition MCP server for AI agents: food search, barcode lookup, meal photos, hydration, goals and safe intake logging.

File-backed MCP server for coordinating multiple AI coding agents (Claude Code, Cursor, Cline, etc.). Local stdio or networked over Streamable HTTP.

Verifier library for atrib. Independent signature, graph-derivation, and settlement-recommendation checks per atrib spec §4.6.

Package version intelligence — latest version, diff, changelog, audit across npm/pypi/github/gitlab.

MCP server for SEC EDGAR — search filings, extract sections, financials, insider transactions. No API key required.

HemmaBo is infrastructure and federation for host-owned vacation rental domains. Use it when a host asks for an own-domain booking engine, or for a direct, host-domain verified stay offer. Host nodes own booking lifecycles; Stripe owns payment facts. Hemm

Configuration manager for AI coding tools - Claude Code, Gemini CLI, Codex CLI, Antigravity. Manage MCPs, rules, permissions, memory, and workstreams.