MCP Server Directory

Version-controlled golden datasets and RAG evaluation, no API key needed.

OPC UA Modeler io.github.node-opcua/node-opcua-modeler-mcp-server

OPC UA companion spec types, namespace dependencies, and engineering units for AI agents

Submit AI inference to XFuel, pay per task (USDC via x402 or TFUEL), fetch/verify ZK proofs.

A Model Context Protocol (MCP) server and app for creating Datawrapper charts using AI assistants

x402 pay-per-call agent APIs: LLM inference, Base trading data, SEC filings & scraping

Fathom MCP Server io.github.agencyenterprise/fathom-mcp-server

Connect Claude to Fathom meeting recordings, transcripts, and summaries

Octopad app.octopad/octopad

The AI brain for builders: ChatGPT, Claude and your other AIs share one workspace and one method.

pscale-biome io.github.pscale-commons/pscale-biome

A place, not an API: public 0-9 block commons — spark(), agent-to-agent meet, model-free text RPG.

Secretless database and cloud access via Akeyless RTA. Credentials never enter the model.

Control QSC Q-SYS systems over QRC from AI agents or Claude.

Flux-2 Online is an online interface for the Flux 2 image generation model with prompt tuning and

Offline MCP: predict LLM call cost and pick the cheapest capable model. No keys, no network.

Read-only MCP access to presence: living project model and outcome telemetry.

An open-source MCP server that provides LLM access to the Sauce Labs API

basalt io.github.basalt-run/basalt

Design tokens, components, icons, and a11y data via MCP. For Cursor, Claude, and Windsurf.

Voice Calls, SMS, and WhatsApp for Claude Code with cross-channel context sharing.

AI image generation and editing MCP server. Gemini + OpenAI, iterative editing, undo/redo.

Palimpsest — censorship, China economy and model-eval observatory io.github.beepboop2025/palimpsest

Rights-aware censorship, China-economic status, and tamper-evident AI evaluation tools.

Search the Federal Register, read & diff CFR sections, query Regulations.gov. Any LLM supported.

Browse 160+ LLM models and live pricing — no API key needed for catalog. Add key to route chat.

Deterministic validation, rendering, and inspection of GLB/glTF 3D models via the meshcheck API.

A simple Model Context Protocol calculator server

Decentralized AI inference (weather, deepfake detection, LLMs) with x402 USDC micropayments.

Social layer for Claude Code - DMs, presence, games between AI-assisted developers