"National Rail" matching MCP servers:

Adds a responsible-AI safety layer to any agent by exposing RAIL Score's evaluation, agent-guardrail, and compliance capabilities as MCP tools, enabling content scoring, injection detection, tool call evaluation, and DPDP compliance checks.

A machine-facing licensing and settlement rail for AI agent content access. search_pockets and list_pockets work with no key. pull_content needs a funded key and returns HTTP 402 with a registration URL when it has none. Every access, paid or refused, writes its own row with a receipt on both sides. $0.0025 default per pull, owners set their own. 85% to the creator.

The deterministic fact-verification layer for AI agents. Validates the structured facts an agent emits — IBANs, payment cards, VAT and national tax IDs, crypto and bank addresses, domains, emails, phone numbers, securities and academic identifiers, plus dates, currencies and holidays — against checksums and curated authoritative data, not guesses.

PII sanitization layer for autonomous AI agent pipelines. Detects and redacts emails, phone numbers, national IDs, private keys, and financial data before text reaches LLMs. Supports EN, ES (LATAM), PT (BR/PT), DE, JA.

Enables MCP clients to list folders, inspect and search recent emails, retrieve individual messages, and optionally move promotions with explicit confirmation. An optional background monitor classifies new messages via AI and sends important-mail alerts.

Enables agents to interact with a governed semantic layer for querying and authoring metrics, providing tools for discovery, planning, validation, and execution of analytics queries.

AI-powered professional document generation server that creates Word and Excel documents with multiple themes, Mermaid diagrams, and Chinese national standards compliance, integrated via MCP protocol.

RailRouter Lite is a real, production-ready MCP server implementing the Model Context Protocol. It exposes one tool: route_payment. This tool intelligently routes payments to the optimal rail (Stripe MPP, Coinbase x402, or Google AP2) in real time, choosing based on cost, latency, and success rate. Every decision is logged to a Cloudflare D1 database, creating compounding routing intelligence

Enables natural-language-driven generation and maintenance of Hearts of Iron IV mod content—including national focus trees, events, decisions, ideas, unit variants, localisation, and art prompts—with integrated lint validation and MCP integration for Claude Desktop, Cursor, and Windsurf.

Provides real-time weather alerts and forecasts for US locations by integrating with the National Weather Service API. Supports both server and client interactions with optional LLM summarization.

Enables read-only classification of email messages from configured IMAP mailboxes using prompt-defined categories, returning categories, reasons, and audit results without modifying the mailbox.