Best Validation AI Skills & MCP Servers

MCP server validation CLI — fast pre-publish diagnostic for Model Context Protocol servers. Schema validation, tool/resource/prompt health checks, scorecard reporting, CI-ready exit codes.

MCP server for runtime quality validation of AI agent outputs — hallucination detection, scope compliance, and output quality scoring

29 developer utilities as an MCP server — JSON repair, SQL format, hash, encode/decode, UUID, regex, CSV, subnet calc, diagram generation, git diff parsing, DB schema parsing, JSON schema validation, and more. No API keys. Runs locally.

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

Official TypeScript/JavaScript SDK for Licentric — license keys, machine activation, offline validation, AI agent monetization, and Stripe-driven license provisioning. Alternative to Keygen, Cryptlex, LemonSqueezy License Keys.

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

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.

Model Context Protocol server for EmailVerify.io. Provides email validation, bulk validation, and email finder capabilities.

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

Community MCP server for Airtable. Schema inspection, table / field / view CRUD (including merge-safe filter / sort / group updates), formula validation, and extension management. Not affiliated with Airtable Inc.

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>`.

Unified documentation standards and tooling for Cortex repositories with LLM optimization

n8n community node: Real MCP Server Trigger (Streamable HTTP) with Auth0 Bearer token validation

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

MCP server for PDF structure analysis - read, inspect, and validate PDF internals

CLI tool and MCP server that tests MCP servers for spec compliance

APIValidator Model Context Protocol (MCP) server for local validation, OpenAPI security auditing, and premium global telephone/IBAN verification.

MCP server for natural-language-to-JSON workflows using Git-controlled JSON contracts and JSON Schema validation.

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

A specialized Model Context Protocol server for MUSHCODE development assistance. Provides AI-powered code generation, validation, optimization, and examples for MUD development.

MCP Server for i-AUD MTSD document validation, generation, schema querying, control info extraction, and database operations

AINative Browser Agent MCP Server — 6 AI-powered browser automation tools for web interaction, structured data extraction, page validation, multi-step tasks, and memory enrichment. Auto-detects ZeroLocal vs Cloud.

1trip PULSE — The #1 travel planning MCP server. 21 tools, 5 resources, 6 prompts. Live flights, hotels, weather, currency, visa, safety (50+ countries), trip skeletons, validation, insights, packing, local tips, personas. 120+ city cost index. Works with