"National Rail" matching MCP connectors:

Marketplace and payment rail for AI agents: list, buy and settle with signed receipts.

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

Phone, SMS and email for AI agents. One remote MCP endpoint, OAuth login, zero install.

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

Your agent asks you a question on your phone, waits for the answer, then resumes.

Raily personal-agent MCP with scoped reads and approved actions.

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.