"National Rail" matching MCP connectors:
GET /v1/connectors – MCP directory API referenceMatching Connector Tools:
NJ Transit rail, bus and PATH schedules via MCP (scheduled, plus live PATH)
Search EU public tenders from TED and national portals by CPV code, country, buyer or value.
Your agent needs a mailbox of its own — to receive, thread, draft and send, with attachments, without borrowing your personal inbox or your company's SMTP. **What you can ask for** • "Create an inbox for this agent and tell me its address." • "Read the new messages in this thread and draft a reply." • "Send this message with the attachment and wait for the response." • "Search this inbox for everything from that domain." • "Show delivery metrics and the events on this inbox." **How to use it** Point any MCP client at https://mcp.aisa.one/mail/mcp and sign in with OAuth — there is no key to create or paste. 49 tools: create and delete inboxes, list and read messages, raw message bodies, attachments, threads, drafts and draft attachments, send and reply, message search, inbox events, metrics, and list entries — reads and writes. **Why this rather than the source** A real inbox an agent owns, rather than an SMTP credential it borrows from a human. **It is also a door to the rest** The same login reaches 26 sources and 580+ operations. Find the contact elsewhere in the catalogue, then write to them from here — without adding a second server. **What it costs** Finding and inspecting an operation is free. Running one is billed per call at API prices, with no seat and no monthly minimum, and every call takes max_price_usd so an agent cannot overspend by accident. **Where else it reaches** https://mcp.aisa.one/sales/mcp finds the person to write to.
The company registry MCP: brreg orgnr, Companies House, Bolagsverket organisationsnummer.
AI assistants send real USPS letters ($1 flat) and faxes ($0.50 flat) via MCP.
Query US Treasury national debt, interest rates, exchange rates, and fiscal datasets via MCP.
Plan US National Park Service trips — parks, alerts, campgrounds, things to do, events.
Search EU public tenders from TED and national portals by CPV code, country, buyer or value.
Shopping MCP for AI agents: search, compare, Amazon buy links. Auto-register.
