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Enforces AST-based architectural guardrails on AI-generated code, blocking writes that violate maintainability, security, or complexity rules and prompting immediate refactoring.

Validate email addresses using the apipick Email Validator API.

Work with Trilium Notes (notebook app) and automate via Trilium Notes ETAPI.

BigIron MCP — US ag/construction/livestock/transportation equipment

Provides 25 geophysical intelligence tools for multi-hazard risk scoring, earthquake/volcano/tsunami/sinkhole prediction, weather intelligence, insurance underwriting, climate migration, and parametric triggers.

MCP server wrapping social-auto-upload CLI for AI clients to verify cookies and publish videos/notes to Chinese social platforms (Douyin, Kuaishou, Xiaohongshu, Bilibili).

Enables fetching YouTube video transcripts with Google OAuth 2.0 authentication. Supports both manual and auto-generated transcripts with optional timestamps from video URLs or IDs.

MCP server that integrates GauntletCI to analyze behavioral change risk in commits, providing findings as text, JSON, or SARIF reports for AI assistants.

This MCP server provides crypto ETF flow data from the CoinGlass API, enabling AI assistants to retrieve and analyze historical Bitcoin and Ethereum ETF fund flows in structured markdown tables. Built by kukapay using Python with FastMCP, pandas, and httpx, it features a unified tool that dynamically fetches ETF flow data for BTC or ETH, formats results using pivot tables with ETF tickers as columns and dates as rows, includes total flow calculations, and provides prompt guidance for streamlined LLM interactions. The implementation uses the CoinGlass API for real-time financial data access and presents information in user-friendly markdown tables sorted by date in descending order, making it valuable for cryptocurrency market analysis, ETF performance tracking, and financial decision-making workflows that require current fund flow insights.

Enables AI assistants to inspect and manage OpenStack clouds, including listing instances, checking quotas, and retrieving console logs. It supports opt-in write operations for creating and deleting servers, with a read-only default.

Provides access to EBI's MetaboLights metabolomics study repository via an MCP gateway, enabling querying and retrieval of metabolomics data.

Unofficial strongly-typed Python SDK for the Affinity CRM API - full read/write coverage, Pydantic v2, MCP server included. For when you need more than Affinity's official MCP

Nationalize MCP — nationality prediction from first name (nationalize.io, free, no auth)

Enables natural-language AI agents to query and manage Couchbase databases via the Model Context Protocol, allowing users to ask plain-English questions about travel data and get SQL++-backed answers.

Enables querying Brazilian trademark and patent data from INPI, including trademark availability, process details, and intellectual property by owner via CPF/CNPJ.

Fetch, summarize, and manage X/Twitter bookmarks via bird CLI or X API v2.

Provides keyless tools to measure social media topic volume and account activity across Bluesky, Mastodon, Reddit, and Hacker News.

Enables interaction with Google Analytics 4 to manage accounts, run standard or realtime reports, and validate event parameters. It supports dual authentication methods and integrates with GTM for end-to-end data collection orchestration.

Construction takeoff and estimating for AI agents. Measure a drawing PDF, export a priced estimate.

This MCP server provides complete integration with the Capacities knowledge management platform, enabling AI assistants to interact with personal knowledge spaces through the official Capacities API. Built by Jem Gold using TypeScript with FastMCP and Zod validation, it offers tools for listing and exploring spaces, searching content across knowledge bases with advanced filtering, saving weblinks with metadata and tags, and adding content to daily notes, plus structured prompts for creating daily summaries, research notes, and meeting notes. The implementation includes proper error handling for API responses, rate limit awareness, and support for both read-only operations like search and write operations like content creation, making it valuable for knowledge workers managing research workflows, students organizing academic materials, and anyone using Capacities who wants AI assistance with content discovery, organization, and daily note-taking.