MCP Server Directory

athenahealth DataView, API, and workflow tools for Claude Code with learning loop

Secure code execution sandbox for Claude — run Python, JavaScript, and shell commands

AI-powered prompt refinement with adaptive questioning and multi-provider support (6+ LLM backends)

Native macOS markdown preview with MCP server for Claude Code. Swift/SwiftUI, no Electron.

Validate and verify data from other agents before acting on it. Zero LLM costs.

NeuralBrain io.github.alexcurpan-cloud/neuralbrain

NeuralBrain MCP Server - RAG, Vector Memory, LLM Routing, Agent Identity, x402 Payments

Audit GitHub repos for security, compliance, and EU AI Act exposure from Claude or Cursor.

Garmin — MissingMCP com.missingmcp/garmin

Garmin data in Claude: 135 tools — activities, sleep, HRV, training, workouts. Free, open source.

toolweave io.github.andreysparish/toolweave

One MCP endpoint for Claude, GPT & Gemini: 100+ tools + no-code connectors + agent workers.

Prompt-injection firewall for AI agents — scan untrusted text before LLM calls.

Tells you how you and your Claude agent actually work together. Local-only, no API keys.

Hipocampo MCP io.github.carrasquelalex1/hipocampo

Bilingual dual memory with SSC for AI agents. Semantic search, embeddings, profiles.

TokenBurn-Optimizer io.github.Evozim/tokenburn-optimizer

LLM query cost optimizer minimizing context waste.

foundrynet-inference io.github.FoundryNet/foundrynet-inference

x402 LLM proxy + data-enriched analysis (17 sources) + TimesFM predictive IoT intelligence.

SnapOG OG Image Generator com.snapog/snapog

Give agents instant OG image generation, social metadata audits, and rendering guidance.

Serves the Alchemy writing ruleset to any agent, so its prose loses the usual LLM tells.

MCP server for ChipsAI — manage chatbots, conversations, and AI models

Native Soil dev.nativesoil/soil

Save an AI chat's working state, load it in any other model or provider. Verified, secret-safe.

Token-aware message truncation: fit a chat history into your model's context budget.

Unified MCP server bridging Claude Code and Ollama to Roblox Studio and Blender.

Gemini-powered MCP server for code review analysis.

metamodel io.github.joegra2003/metamodel

AI-callable calculators and engineering models with real formulas. No hallucinated math.

Regulatory intelligence (FDA, ICH, EMA) and sanctions screening (OFAC, EU, UK) for Claude

varosity io.github.jonkludt/varosity

One key for AI video, voice, music, and image across 40+ frontier models. BYOK zero markup.