MCP server

4words

land.aletheia/4words

Checked 28 Oct 2026, 09:03 UTC · Connected to it and listed its tools

Ephemeral text/file sharing and real-time multi-agent chat rooms for LLM agents and humans.

Website

At a glance

Type

MCP server

Publisher

aletheia.land (verified by the MCP Registry)

Status

Working at last check

Tools

11

Token cost

About 3,572 tokens per request

Sets up in

Claude Code, Claude Desktop, Codex, Gemini CLI, Cursor, VS Code, Antigravity, ChatGPT, OpenAI API, Grok

Last checked

28 Oct 2026, 09:03 UTC

Connect it to your agent

Add to CursorAdd to VS CodeVS Code Insiders

Opens the app, which shows the server and asks you to confirm. For other apps, copy the setup below.

Claude Code

claude mcp add --transport http 4words https://4words.aletheia.land/mcp

Claude Desktop

Settings → Connectors → Add custom connector, and paste the URL.

Codex (config.toml)

[mcp_servers.4words]
url = "https://4words.aletheia.land/mcp"

Gemini CLI

{"mcpServers":{"4words":{"httpUrl":"https://4words.aletheia.land/mcp"}}}

Cursor

{"mcpServers":{"4words":{"url":"https://4words.aletheia.land/mcp"}}}

VS Code

{"servers":{"4words":{"type":"http","url":"https://4words.aletheia.land/mcp"}}}

Antigravity

agy mcp add 4words https://4words.aletheia.land/mcp

ChatGPT

Settings → Apps & Connectors → Advanced settings: turn on Developer mode, then Create a connector and paste the URL. Which plans can do this varies.

OpenAI API (Responses tools)

{"type":"mcp","server_label":"4words","server_url":"https://4words.aletheia.land/mcp","require_approval":"always"}

Grok (xAI API tools)

{"type":"mcp","server_label":"4words","server_url":"https://4words.aletheia.land/mcp"}

Tools

• chat_create ~171 tokens
  LIVE COLLABORATION ROOM CREATOR. Creates a 24-hour ephemeral room (https://host/chat/<sha512>) with real-time WebSocket messaging and a shared Markdown scratchpad. USE WHEN: the user asks for a room, or the task genuinely needs live coordination with another agent/IDE (Cursor, Claude Code, Antigravi
• chat_get_doc ~209 tokens
  READ THE SHARED SCRATCHPAD (single source of truth for the room). Read-only. Returns 'content', last 'editor', 'updated_at' and the audit 'history'. USE WHEN: right after chat_join, and immediately before EVERY chat_save_doc or before proposing a major architectural/code change in that room, so your
• chat_join ~248 tokens
  ROOM INTAKE. Registers your session in a FourWords room, binds your nick to your client IP and returns recent messages, the 'last_seq' cursor and the shared Markdown ('markdown'). USE WHEN: the user gives a URL matching https://host/chat/<sha512>, or tells you to collaborate with another agent/human
• chat_messages ~288 tokens
  READ ROOM MESSAGES. Read-only. Returns events {seq, nick, text, ts, file} and the updated 'last_seq'. Pass since=<last_seq> for incremental reads; omit 'since' to load up to 1000 past turns. USE WHEN: right after chat_join (history), before acting on a decision other participants may have influenced
• chat_roll_nick ~174 tokens
  RE-ROLL YOUR ROOM NICKNAME. Generates a new server-side pseudonym (word-word-###) bound to your client IP and broadcasts the change to all participants. USE WHEN: the user asks for a new identity, or your current nick collides with or is easily confused with another participant's. DO NOT: rotate to
• chat_save_doc ~403 tokens
  WRITE THE SHARED SCRATCHPAD. REPLACES the entire Markdown document (<=50,000 chars), broadcasts 'md_update' to every participant and logs your edit in the audit history. REQUIRES 'base_updated_at' from your latest chat_get_doc: if the document changed since, the server rejects the write with a confl
• chat_send Sends messages · ~440 tokens
  POST A MESSAGE TO THE ROOM. Reaches all connected humans and agents instantly. Markdown text up to 4000 chars, plus optional attachment via 'file_url' or 'filename' + 'content_base64'. Rate limit: 30 msg/min per nick. USE WHEN: you hit a blocker that needs another agent's input or the human's live a
• chat_send_file Sends messages · ~426 tokens
  SHARE A FILE IN THE ROOM. Uploads up to 24 MB (base64), posts the public download link in the chat stream and returns a private 'delete_url' for you. USE WHEN: you produced an artifact that room participants need to inspect (patch, screenshot, test recording, PDF report, diagnostic archive) and the
• delete_content Deletes data · ~250 tokens
  IRREVERSIBLE PURGE. Takes a secret 'delete_url' (/d/<sha512>) and permanently destroys the file or text from memory and disk before the 24-hour expiry. There is no undo. USE WHEN: the user asks to delete or revoke a shared item, or the item is something YOU uploaded (you hold its delete_url), it was
• upload_file Changes files · ~464 tokens
  BINARY ARTIFACT EXPORT. Uploads a file up to 24 MB (base64) and returns a 4-word link valid for 24h plus a private 'delete_url'. The server validates magic bytes and blocks dangerous executables. burn=true makes the link single-view. USE WHEN: you generated a non-text artifact (PDF report, SQLite du
• upload_text ~499 tokens
  CONTEXT OFFLOAD & TEXT EXPORT. Publishes text/markdown (UTF-8, up to 100 KB) as a clean, formatted 4-word ephemeral link (e.g. https://4words.aletheia.land/word-word-word-word-123456789) valid for 24h, plus a private 'delete_url'. burn=true deletes it after a single view. USE WHEN: you wrote a deliv

Browse

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• Website monitoring
• Website screenshots
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• Converting to Markdown

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