The real catalog of tools for AI agents

Mail one-off USPS letters from ChatGPT or Claude after you approve the preview and price. US only.

Send physical mail with Solana cryptocurrency - AI agents can send real letters worldwide

Send notifications, manage templates, and configure integrations with Courier.

Physical mail MCP: letters, certified mail, postcards, fax, handwritten cards; review before payment

Print and mail real letters worldwide from the EU, incl. registered mail. Quote, compose, send.

The first MCP server for physical mail: send postcards and letters, manage lists and campaigns.

Give AI assistants hands: send real USPS letters via MCP.

Gmail, Outlook, Hotmail, iCloud and Fastmail at once: search, read, draft, send and organise mail.

Verify US & international addresses and send physical mail (postcards, letters, checks) via Lob.

Send emails from natural language prompts.

A real inbox for AI agents: send, receive and thread email, behind a prompt-injection firewall.

Your agent's own email address: read, search, send, reply, draft and wait for mail.

Print and mail physical documents in the US via USPS, with quotes, agent payment and tracking.

Mail real US letters, postcards and certified mail from an agent, quoted before sending.

Read, send, organize, watch email on any IMAP mailbox: Gmail, iCloud, OVH, Zoho, Fastmail + CalDAV.

Still work in progress

Read, search, compose, and send emails via Apple Mail on macOS.

Email for AI agents: send, receive with a safety verdict, reply and approve, as MCP tools.

Send transactional email over a verified domain — templates, attachments, custom headers.

Read, search, organize, draft and send business email from your SuperMailOS mailboxes.