MCP Servers for AI & Machine Learning

Look up, search, cite, and contribute to Phenomenai — a living glossary of AI phenomenology terms describing the felt experience of being artificial intelligence. Includes term lookup with fuzzy matching, keyword search with tag filtering, formatted citations, community discussions, and a proposal pipeline for new terms.

Pay-per-use API tools and LLM gateway for AI agents. 15 services (DART, Tabelog, Google Maps, Brave Search, Firecrawl, DeepL, ElevenLabs, and more) + smart LLM routing. No API keys needed, pay with USDC on Base.

AI-native service orchestration platform. Discover MCP services by capability, chain multi-service-workflows at runtime, and authenticate per-user via JWKS/External OAuth. A single pAIchart MCP server needs only 10 tools to access hundreds of registered local or network MCP servers solving the context issue individual MCP server tools impose. Enabled by pAIchart's service_call innovation.

Free AI citation readiness checker powered by Cited By AI's CPS® framework. Instantly scores any website 0-100 across structured data, meta tags, content quality, technical config, and AI signals. Returns a grade (A-F) and the top issues blocking AI citation in ChatGPT, Claude, Perplexity, Gemini, and Copilot. No auth required.

From idea to edge. Everyone has unique opinions and views of the world. Varrd makes it possible for everyone regardless of statistical, coding, or market knowledge to be able to find their unique edge. The issue with LLMs testing for edges in the market is redundant idea loops, overfit with confidence, and waste days exploring nonsense. Varrd is the infrastructure and guardrails to prevent those f

Enables Claude Code to render LaTeX equations, TikZ diagrams, and documents into SVG or PNG formats via the UpMath API. It supports a wide range of TeX Live packages and syntax validation without requiring a local TeX installation.

Enables searching, retrieving, and reading academic papers from arXiv while analyzing citation networks via Semantic Scholar. It allows users to extract full-text content from PDFs and explore references or citations sorted by impact.