MCP Server Registry

XKCD MCP — wraps xkcd.com JSON API (free, no auth)

Suggests a relevant xkcd comic during a conversation, via semantic search over every comic.

Search and explore source-backed SEO, SaaS, and LLM-wiki knowledge from the XKnow knowledge base.

MCP server for the X API

MCP server for X (Twitter) API — post, search, like, retweet, follow, and read tweets

User-owned memory for AI agents, Copilot, Claude, IDEs, CLIs, and chat apps over remote MCP.

Google and Yandex SERP parsing, Wordstat keyword frequency, and indexation checks via the XMLRiver API.

MCP Server for xmo-data API

MCP server for controlling the Xojo IDE on macOS

Xome MCP — US residential foreclosure/REO/short-sale auction calendar and

Search AI capabilities across AWS Marketplace and the Official MCP Registry.

30+ academic research tools. Semantic Scholar, arXiv, PubMed, bioRxiv, CrossRef, IACR.

Turn ideas into platform-ready drafts, schedule content, and publish through XPlanner.

Security scanner for AI-generated code. Scan, explain rules, and grade before you ship.

Connect your XP account to AI via Brazil's Open Finance: balances, statements, cards, investments. R

AI agent gateway with web fetching, data extraction, crypto pricing, and x402 payments

XposedOrNot MCP — free breach-exposure lookup by email.

Proof primitive for AI agents on MultiversX. Anchor file hashes on-chain as verifiable proofs.

Integrates with Xray Cloud API to provide test management capabilities including test case creation, execution tracking, test planning, and JQL-based searches across all test artifacts for QA workflow automation and CI/CD pipeline integration.

Model Context Protocol server for xraylib X-ray interaction data

Universal content reader MCP Server for 10+ platforms

Autonomous xRocket CEX trading inside operator-set limits, plus live market data over MCP

Free XRPL wallet creditworthiness scores, ready-to-sign txjson for 35 XRPL actions, and more.

XRPL data tools for AI agents: wallet classifier, signals, RWA tracker, ETF flows. Pay via x402.