MCP Server Directory

Pvgis io.github.pipeworx-io/pvgis

PVGIS MCP — EU Joint Research Centre PV system modeler

Access 100+ LLMs with one API: GPT-4, Claude, Gemini, Mistral, and more.

Zero-knowledge persistent memory for Claude — encrypted, semantic search, EU hosted.

VenuVidya — Carnatic Flute Study Guide io.github.pradeep-anantha/venuvidya

Kannada/English Carnatic flute KSGMS syllabus — search lessons, log practice, ask a RAG guru.

BetterDB MCP server - Valkey observability for Claude Code and other MCP clients

MCP Server for adding bookmarks in openai RAG

API credential manager for Claude Code. Connect services, store keys in keychain, monitor health.

Ideogram platform MCP (api v2): 18 image models, price quotes, async generations, raw call

Model Context Protocol server for Retain: let AI agents query churn risk and act on retention.

zopaf io.github.rjandino/zopaf

Negotiation math engine. Pareto frontier, counteroffer generation, zero LLM tokens.

Connect AI models like Claude & ChatGPT with ROS robots using MCP

Gemini 3 Online is an online chat interface that lets users interact with the Gemini 3 model for

Marketing Skills Directory io.github.sandeepkelvadi/marketing-skills-directory

Search, browse & read 340+ Claude Code marketing & SEO skills from any MCP client.

Negotiate prices at any negotiate.v1 store. AI shopper tools for Claude.

Detect fabrication and hallucination in any LLM output. 30+ models supported.

opchain io.github.asfbay-bit/opchain-skills

Claude Code / MCP skills for the dev pipeline: discover, spec, design, build, ship, operate.

Query GPT 5.2, Claude Opus 4.5, Gemini 3, Grok 4.1 simultaneously for AI perspectives

An MCP server for natural language inference

concordance com.narrowhighway/concordance

Deterministic claim verification with receipts across ~60 domains. No model in the loop.

Save chat notes from Claude Desktop to your vault — MCP on Obsidian CLI. Keep what matters.

Real-time LLM output verification with 6-dim contract validation and auto-failover across providers.

Supervised Meta Ads operating system for Claude Code with 57 campaign management tools.

Deterministic Android app compiler — agents write a YAML model, the compiler emits the native app.

Cross-session WebFetch cache for Claude Code. Unlimited TTL by default, SQLite, MCP plugin.