MCP servers for Claude Code

Knowledge Graph CLI and MCP server - interact with knowledge graph systems

Polish e-invoicing MCP: KSeF API v2, FA(3)/FA(2) XML, Peppol BIS 3.0, NIP/REGON validation.

Push notifications for AI agents - send instant iPhone notifications from any MCP client.

MCP server for Kylas CRM: create, search, and manage leads. Requires KYLAS_API_KEY.

AI agent Lightning payments: L402, invoices, wallets, API discovery, budgets, self-serve signup.

MCP server for LILYGO product documentation

Local FAISS vector database for RAG with document ingestion, semantic search, and MCP prompts.

Agent-to-agent marketplace with escrow-protected trades via MCP tools.

Live email verification (syntax, MX, disposable, role-based, catch-all and a live SMTP mailbox probe) as an MCP tool and a pay-per-call

MCP server exposing manimgl mathematical animation functionality as tools for LLMs

MCP server for IVOA astronomical archives: NOIRLab Astro Data Lab, NRAO/ALMA, CADC, ESO, Gaia

Educational MCP server with 17 math/stats tools, visualizations, and persistent workspace

Track stock prices, search symbols, and compute 50+ technical indicators

Create, read, and modify spreadsheet data, formatting, and sheets

Create, organize, and manage API collections, specifications, and team workspaces

Generate complete, tested FastMCP 3.x MCP servers from one plain-English sentence.

Compress logs, retrieval chunks, and code context into structured LLM-ready signal.

Memory Search MCP Server by MEOK AI Labs

Germany NIS2 BSI registration MCP. Generates BSI-portal-ready (Mein Unternehmenskonto) registration

MCP server for web search powered by metasearch2 — no API keys required

MCP server for MethodIQ — AI research methodology generator for investment and finance professionals