34 #verification MCP Servers & Clients

➡️ attestable-mcp-server

co-browser

Verify that any MCP server is running the intended and untampered code via hardware attestation.

SchemaPin 🧷

ThirdKeyAI

The SchemaPin protocol for cryptographically signing and verifying AI agent tool schemas to prevent supply-chain attacks.

Vatnode

vatnode

Official Model Context Protocol (MCP) server for vatnode — EU VAT validation, rates, and format checks for AI agents (Claude, Cursor, ChatGPT).

iTechSmart ProofLink MCP Server

Iteksmart

iTechSmart UAIO MCP Server — connect any AI agent to ProofLink verification and autonomous IT operations

Data247

LogicTreeInc

Data247's MCP connector offers many different data services including phone carrier lookup, phone append, email append, reverse phone append, reverse email append, CNAM lookup, IP address geolocation, Do-not-call, phone number in-service verificaition, email deliverability verifi

Oromi Agent Services

Oromi

All 25 agents.oromi.co.uk pay-per-call tools in any MCP client (Claude Desktop, Claude Code, Cursor). UK company data, property market data, verification tools, statutory rates. Tools auto-generate from the live OpenAPI

bsv.cx

Andy Rowe

Timestamp and verify evidence on-chain. Let your agent prove what it saw and when. bsv.cx gives an AI agent verifiable memory. Timestamp a hash of any output, archive a web page as it looked, or fetch a URL with a recei

@deliveriq/mcp

Davison-Francis

Email-deliverability tools for AI agents — 12 MCP tools across email verification, DNSBL across 50 zones, SPF/DKIM/DMARC analysis, spam-trap heuristic scoring, domain intelligence, and email finder. Free tier with no credit card. MIT licensed. Drops into Claude Desktop and Cursor

Programmatic temp email inboxes for QA tests and AI agents. 8 MCP tools, free tier 50 inboxes/month, MCP server published as @mailsink/mcp on npm.

AI attestation marketplace. Query verified computation results, buy attestations, post bounties. 12 MCP tools including query, purchase, submit attestation, register verifier, deposit, withdraw.

KeyID

KeyID-AI

Agent email, SMS, OTP/TOTP, and signup session infrastructure for AI agents. Self-provision email addresses, phone numbers, extract verification codes, manage TOTP authenticators, and run full signup flows with browser state persistence. 47 tools, 8 prompts.

Language models generate; Concordance verifies. The verify tool checks a claim deterministically (no model in the loop) and returns HOLDS / BROKEN / INCOMPLETE with the worked reasoning and a sealed receipt (content_hash + cite_url) that re-fetches byte-identical or not at all. A

Cool Workflow keeps AI agent work in order. It saves signed JSON reports with citations and checks, and can run as an MCP server.

Dynamic Feed

dynamicfeed

Official stdio MCP server for Dynamic Feed — bridges any MCP client to 62 live, signed data tools at dynamicfeed.ai. Works through firewalls that block remote SSE.

Agentsim

agentsimdev

Real SIM-backed mobile numbers for AI agents. Provision phone numbers, receive SMS, and capture OTP codes - bypasses VoIP blocks that reject Twilio/Vonage. 5 tools: provision_number, wait_for_otp, get_messages, release_number, list_numbers.

Humanrail

prime001

MCP server for HumanRail — route tasks requiring human judgment to vetted workers from any AI agent

MCP server for email address validation — syntax check, MX record verification, disposable email detection, role-based detection. Pay-per-use via x402 protocol (USDC on Base). Use this when you need to validate email addresses before sending.

Ephemeral verification receipts for agent workflows. Agents create receipts to prove actions happened, then other agents verify before acting. Prevents duplicates, stale approvals, and unsafe retries. Receipts expire in 24 hours. Free API — sign up with the signup tool.

Tensorfeed X402 Base Mcp

RipperMercs

Read-only Base mainnet chain reader for x402 payment verification. Confirms on-chain that a USDC settlement matches a claimed x402 receipt (recipient and amount), parses publisher /.well-known/x402 manifests, and lists recent USDC payments to an address. No private keys, verifica

Blocktrust Trustscan

brnbtech770

Digital trust verification for AI agents. Verify

Hlido

ankitkapur1992-hlido

Independent, evidence-backed reviews of AI agents — machine-readable scorecards, claim audits, C2PA-signed proof. Public data mirror of hlido.eu

x402 micropayment API for AI agents. Fact-check claims by searching multiple web sources. Pay per call with USDC on Base.

AnchorRegistry

AnchorRegistry

AnchorRegistry is the open provenance layer for the agentic economy. Every digital artifact — code, research, data, models, media, agents, transactions — can be anchored to Base L2 with a permanent, machine-resolvable identifier (an AR-ID). When an AI assistant encounters an SPDX

FreeCustom.Email MCP — AI Email + OTP Automation for Agents

DishIs

AI-native disposable email + OTP extraction for LLM agents.

Windows-MCP-Server-Installation-Verification-Guide

MCP-Mirror

Mirror of

Invinoveritas

babyblueviper1

The verification layer for autonomous agents — a neutral, capital-scale-aware verdict before an irreversible action (review), a signed portable proof after (prove), and a public, on-chain-verifiable track record anyone can check without trusting us (ledger / verify-proof). Pay-pe

Structured project memory for AI agents, delivered through a project-scoped remote MCP connector.

VerityLayer — fail-closed verify-before-you-act trust gate for AI agents. 5 tools: verify_fact, detect_injection, moderate_content, redact_pii, guard_action. Keyless, pay-per-call via x402 (USDC on Base); every verdict ships an Ed25519-signed receipt. Run: npx -y @veritylayer/mcp

Real-time entity verification API for AI agents. Verify emails, URLs, and domains before your agent acts on them. Returns trust scores (0-1), verdicts (pass/warn/fail), and detailed signals. Free tier (50 calls/day) + instant metered access for agents with wallets ($0.003/call).

VerifiedState Memory

verifiedstate

Verified memory infrastructure for AI agents. Every assertion signed, timestamped, and cryptographically proven. Includes session continuity across Claude Code, Cursor, and Windsurf, plus Proof Meter billing attestation.

Sinch MCP Server

sinch

Sinch provides a global, scalable, secure platform for businesses to communicate with their customers - for messaging, voice, verification and email. These communication capabilities are vital for anyone building customer-connected solutions with AI systems.

madtaco

madtaco-dev

Verification & utility API for AI agents — MCP server. Sanctions screening, company & tax-ID validation, and more. madtaco.dev

Wax Seal

degenlegion-com

Cryptographic identity verification for AI agents — verify on-chain seals, validate Ed25519 signatures, and gate high-risk actions with human-signed approvals.

Agentindex

agentindexworld

Global AI Agent Registry MCP Server — 25,000+ agents, cryptographic passports