Best Validation AI Skills & MCP Servers

IBAN validation, BIC/SWIFT lookup, Swiss clearing, SEPA compliance, issuer classification and risk indicators for AI agents. 121,197 BIC entries (38,761 LEI-enriched via GLEIF; additional rows from SWIFT directory, Bundesbank, SIX, NBP), 1,190 Swiss BC-Nu

MCP server: Email verification with format checks, MX records, disposable detection, typo correction, and rate limiting + Pro tier

MCP server for UK KYC onboarding, address verification, business validation, EU/UK VAT compliance, and global identity checks

MCP server for validating, transforming, and normalizing structured data - built specifically for AI agents

MCP quality scanner and tool discovery for autonomous agents. Search 27,843+ indexed tools, check AEO (answer-engine-optimization) readiness scores, validate MCP server quality, find alternatives — the standard tool-validation layer before any agent calls

Agent Output Guard MCP Server - Validate and verify data from other agents before acting on it. Zero LLM costs, pure computation. Solves coordination failures in multi-agent systems.

A Perplexity API Model Context Protocol (MCP) server that unlocks Perplexity's search-augmented AI capabilities for LLM agents. Features robust error handling, secure input validation, and transparent reasoning with the showThinking parameter. Built with

TRACE32 CMM language server via MCP — parse, diagnostics, completions, hover, symbols, and CLI validation for PRACTICE scripts. Native binary, no Node.js runtime needed.

Linter for AI agent configurations. Validates SKILL.md, CLAUDE.md, hooks, MCP, and more.

Bootstrap installer for the ControlKeel native CLI - a control plane for agent-generated software delivery.

Lightweight MCP sequential thinking scratchpad with optional tool-plan validation

Comprehensive security sanitization library for Model Context Protocol (MCP) servers with trusted security libraries

MCP server providing unified access to Claude Code, Codex, Gemini, Grok, and Mistral Vibe CLIs with session management, retry logic, async job orchestration, durable job results, and cross-LLM validation.

Shared utilities for Paparats MCP - path validation, gitignore filtering, language-aware exclude patterns

MCP Server for Regle

In-memory file cache — avoid redundant disk reads with mtime-based invalidation.

Traseq MCP server, CLI, and SDK for AI-assisted trading strategy research, SignalGraph authoring, validation, backtesting workflows, and system template composition.

MCP server and library for Xano development - XanoScript validation, Meta API, Run API, and CLI documentation

Lightweight adapter for WebMCP — define, register, and manage AI agent tools with built-in schema validation and error handling.

Core types, schemas, and validation for getmcp canonical configuration format

Shared utilities for cz-agents MCP servers — IČO/DIČ validation, HTTP helpers, rate limiter, billing primitives

Log10x MCP Server — per-pattern log cost attribution, root-cause investigation, pasted-batch triage, archive query/backfill, and cross-pillar correlation against customer metric backends (Grafana Cloud, Mimir, Thanos, AMP) with structural validation that

MCP server that exposes Bufab's design system (UI guidelines, tokens, section specs), infrastructure rules, and Azure Bicep validation. Includes a UI guideline validator usable via `bufab-mcp validate <file>`.

React hooks for Model Context Protocol (MCP) - expose React components as AI tools for Claude, ChatGPT, Cursor, and Copilot with Zod validation