"National Rail" matching MCP connectors:

Agentic rails for complex workflows with receipts, fees, and MCP tool access.

Self-facilitated x402/MCP payments for hosted endpoints, rail proofs, receipts, and agents.

Phone, SMS & email for AI agents — one remote MCP endpoint, OAuth login, zero install.

A paid remote MCP for OpenAI Codex agent coordination MCP, built to return verdicts, receipts, usage

Disposable inboxes for AI agents: create, wait for delivery, and extract email content or links.