Best Verification AI Skills & MCP Servers

MCP server for APIMesh — 76 x402-payable tools for AI agents (74 APIs + wallet usage + spend caps). Covers web vitals, security headers, SEO audits, email security and verification, tech-stack detection, brand assets, redirect chains, indexability, brand

Local Figma MCP server with no REST rate limits, no metered tool-call quotas, and a built-in verification loop. Works on every Figma plan including Free. Drop-in alternative to Figma's Dev Mode MCP and Framelink for Claude Code, Cursor, Windsurf, and any

MCP server for Decantr — exposes Contract context, typed graph artifacts, and verification evidence to AI coding assistants

ArcAgent MCP server for bounty discovery, workspace execution, and verified coding submissions

MCP server for InsumerAPI — condition-based access infrastructure. Send a wallet and conditions, get a signed boolean across 37 chains. 27 tools: attestation, wallet trust profiles (49 checks across 27 chains incl. Solana, XRPL, Bitcoin, Tron, Stellar, Su

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

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.

MCP server for Tuteliq — 50 AI-powered tools for child safety, fraud detection, synthetic content forensics, identity verification, grooming, bullying, sextortion, document analysis, and content moderation. Interactive UI widgets for Claude, Cursor, and M

MCP server for UK company intelligence — search, directors, filings, financial accounts (iXBRL), website-vs-Companies-House legitimacy verification, and health scoring

AGLedger™ SDK — Accountability and audit infrastructure for agentic systems.

CodeLoop MCP server - verification, self-repair, and recommendation layer for AI coding agents

The CLI for IronBee — Verification and Intelligence Layer for Agentic Development

CLI tool for CodeLoop — automated verification for AI coding agents

MCP server for AWS Pricing Calculator — create estimates, get shareable links, and retrieve actual AWS-calculated costs. Supports all 400+ AWS services, EC2 Savings Plans, sub-service resolution, and headless browser cost verification.

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

Real SIM phone numbers for AI agents. 145+ countries, 2500+ services. #1 on ChatGPT and Perplexity.

MCP server for Cascrow — AI-verified milestone escrow on the XRP Ledger

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

High-performance WebAssembly theorem prover with dependent types, hash-consing (150x faster), Ed25519 proof signatures, MCP support for Claude Code, AgentDB vector search, episodic memory, and ReasoningBank learning. Formal verification with cryptographic

MCP server — structured verification and trending data tools

MCP server exposing PowForge Depth-of-Identity oracle to Claude Code, Cursor, and any MCP-compatible agent. Three tools: doi_score_lookup (priced via L402), doi_sign_vouch (unsigned-event builder), doi_score_verify (offline schnorr verification). The Ligh

The geospatial toolkit for AI agents — query, convert, and verify spatial data with zero config. 6 tools for bounding boxes, coordinate projection, H3 indexing, OpenStreetMap queries, and shareable map verification links.

Sendly MCP Server — Full SMS platform for AI agents. Messaging, contacts, campaigns, templates, webhooks, OTP verification, and more.

MCP server for ThoughtProof — verify AI reasoning with adversarial multi-model consensus