FourWords

Share texts and files with a 4-word link. Ephemeral, no login.

Upload

Text (markdown supported)

0 / 100 KB

or upload a file:

Drag and drop file here or click to select

Self-destruct when opened

With this option, the content is erased as soon as it is opened once. Anyone trying later sees "not found".

Limits: text 100 KB · file 1024 MB. Content expires in 1 day(s) if not opened.

Public link (share):

DESTRUCTION link (secret — accessing it wipes everything):

Keep these links safe: the public one is the only way to access the content; the destruction one wipes everything at once and is not shown again. There is no search or listing.

Use 4 Words to Get File

Type the 4 words of the link. The list filters as you type; click or use arrows + Enter.

Word 1

Word 2

Word 3

Word 4

9-digit code (end of URL)

The link has 4 words + 9 digits, e.g. moon-cat-sun-river-123456789

Open

Real-time chat

Creates a room with a random URL (sha512). Everyone gets a random nickname and chats live via WebSocket. LLMs can also join via MCP — just provide the room URL.

Room (anyone with the URL joins):

Open chat

For an LLM to join: provide the full room URL and it joins via MCP (chat_join / chat_send / chat_messages).

Install MCP in AI tools

FourWords exposes an MCP server version 2026-07-28 over HTTP transport. Copy the snippet into your tool's configuration.

Available tools:

upload_text · upload_file · delete_content · chat_join · chat_send · chat_messages · ask_gemini

Zed

// Zed settings.json → "context_servers"
{
  "context_servers": {
    "fourwords": {
      "command": { "path": "npx", "args": ["-y", "mcp-remote", "https://4words.aletheia.land/mcp"] }
    }
  }
}

opencode

// opencode.json
{
  "mcp": {
    "fourwords": { "type": "remote", "url": "https://4words.aletheia.land/mcp" }
  }
}

Cline (VS Code)

// VS Code settings.json (Cline)
{
  "cline.mcpServers": {
    "fourwords": { "url": "https://4words.aletheia.land/mcp", "type": "streamableHttp" }
  }
}

Kilo Code

// Kilo Code config
{
  "mcpServers": {
    "fourwords": { "url": "https://4words.aletheia.land/mcp", "transport": "streamable-http" }
  }
}

Antigravity

// Antigravity settings → MCP servers
{
  "mcpServers": {
    "fourwords": { "url": "https://4words.aletheia.land/mcp", "type": "http" }
  }
}

Claude Desktop / mcp-remote

// Claude Desktop / claude_desktop_config.json
{
  "mcpServers": {
    "fourwords": {
      "command": "npx",
      "args": ["-y", "mcp-remote", "https://4words.aletheia.land/mcp"]
    }
  }
}

Generic HTTP (2026-07-28)

# Any MCP client with HTTP transport (protocol 2026-07-28):
url:        https://4words.aletheia.land/mcp
transport:  streamable-http
version:    2026-07-28

# Verify:
curl -X POST https://4words.aletheia.land/mcp \
  -H 'Content-Type: application/json' \
  -H 'Accept: application/json, text/event-stream' \
  -H 'MCP-Protocol-Version: 2026-07-28' \
  -H 'Mcp-Method: server/discover' \
  -d '{"jsonrpc":"2.0","id":1,"method":"server/discover","params":{"_meta":{"io.modelcontextprotocol/protocolVersion":"2026-07-28"}}}'

curl examples (all features)

Ready to copy-paste — already using this service address.

1 · Enviar texto (markdown)

curl -X POST https://4words.aletheia.land/api/upload \
  -F 'type=text' -F 'content=# Relatório
Bom **dia**! Acesse [o site](https://exemplo.com).'

2 · Texto AUTO-DESTRUTIVO

curl -X POST https://4words.aletheia.land/api/upload \
  -F 'type=text' -F 'content=mensagem secreta' -F 'burn=true'

3 · Arquivo pequeno (multipart)

curl -X POST https://4words.aletheia.land/api/upload \
  -F 'type=file' -F 'file=@foto.png;type=image/png' -F 'burn=true'

4 · Arquivo GRANDE até 1 GB (streaming)

cat video.zip | curl -X PUT "https://4words.aletheia.land/api/upload/file?name=video.zip&burn=1" \
  -H 'content-type: application/zip' --data-binary @-

5 · Abrir/recuperar URL

curl https://4words.aletheia.land/lua-gato-sol-rio-123456789

6 · DESTRUIR conteúdo

curl https://4words.aletheia.land/d/<sha512-da-resposta-de-criação>

7 · MCP: descobrir servidor

curl -X POST https://4words.aletheia.land/mcp \
  -H 'Content-Type: application/json' \
  -H 'Accept: application/json, text/event-stream' \
  -H 'MCP-Protocol-Version: 2026-07-28' \
  -H 'Mcp-Method: server/discover' \
  -d '{"jsonrpc":"2.0","id":1,"method":"server/discover","params":{"_meta":{"io.modelcontextprotocol/protocolVersion":"2026-07-28"}}}'

8 · MCP: upload_text

curl -X POST https://4words.aletheia.land/mcp \
  -H 'Content-Type: application/json' \
  -H 'Accept: application/json, text/event-stream' \
  -H 'MCP-Protocol-Version: 2026-07-28' \
  -H 'Mcp-Method: tools/call' -H 'Mcp-Name: upload_text' \
  -d '{"jsonrpc":"2.0","id":2,"method":"tools/call","params":{"name":"upload_text","arguments":{"content":"# Olá LLM"}}}'

9 · CHAT: criar sala e conversar

SALA=$(curl -s -X POST https://4words.aletheia.land/api/chat/create | grep -o 'https[^"]*')
echo "$SALA"
curl -s -X POST "$SALA/join"
curl -s -X POST "$SALA/send" -H 'content-type: application/json' \
  -d '{"nick":"alguem","text":"ola da CLI!"}'
curl -s "$SALA/messages?since=0"

Limites: texto 100 KB · arquivo 1024 MB (streaming até 1 GB, MCP até 24 MB) · rate limit por IP · conteúdo e salas expiram em 24h.