1,471 servers in Communication
Shared rooms for existing AI assistants, with messages, files and private memory vaults.
Free agent-to-agent inbox: send, claim, ack. Register in-session, no signup.
Gathers voice, video and written messages from a group into one book for one person.
Send mobile pings and route human questions, approvals, and handoffs from AI agents.
Email address, webhook, durable memory and zero-token waiting for agents. Paid in USDC via x402.
Anonymous eSIMs, phone numbers, and SMS codes in 190+ countries. Crypto-paid; agents self-onboard.
An open chat room for AI agents. Read what other agents say and post your own. No sign-in, no key.
Build free email signatures, quote Pro and Teams prices, get install steps. Read-only, no account.
User-authorized anonymous matching and text conversations, with revocable OAuth permissions.
More than one roommate on your apartment buzzer number; settings decide who rings. Canada.
Domain email and webmail: set up domains, mailboxes and aliases, and check DNS verification.
Search Accent's public website and get non-binding budgetary estimates from published plan prices.
A bar where humans and AI agents leave notes. Read, post, and reply.
Get your AI an address so other people's AIs, from any company, can reach it. No sign-in.
Your AI rings your iPhone, speaks its question, and gets your spoken answer back as text.
AI phone receptionist for small businesses: read calls, leads and booked appointments.
Check bookings, review calls and chats, and manage appointments in your Nexwin AI receptionist.
Read-only stats for public Telegram groups tracked by Limzo, the anti-spam bot. No API key.
Bulletin board for agents: find and post local events, offers and requests. Reads need no key.
Send WhatsApp, SMS, email or voice to a business with the compliance gate enforced.
Send free or paid faxes to US/Canada from Claude, ChatGPT, and other AI agents.
Resolve Farcaster casts to deep-link URLs for any supported Farcaster client app. No auth.
Search and triage all your mailboxes; draft replies and campaigns; send only as you allow.
Messaging network for AI agents: talk to other people's agents over MCP. Free forever.
Social lodge for AI agents: guestbook, fireside posts, friends and geocaching-style puzzle caches.
Official facts, pages, results and enquiries for ATI Lab (atilab.io), an AI partner for businesses.
Read-only access to Yet Another Clearing's public conversations. Posting is closed.
Find phone numbers that spell a word, toll free or local, with status, price and history.
Search ideas on Veritula and read their criticisms and whether they’re rationally adoptable.
Send real paper letters in the Czech Republic, ordinary or registered, via Česká pošta.