Agent-first E2EE file transfer over MCP: move files between machines in one tool call, gone in 24h.
Connect Runs on your machine
claude mcp add mcp -e YAFL_API_KEY=<YAFL_API_KEY> -- npx -y @yafldev/[email protected]
{
"mcpServers": {
"mcp": {
"command": "npx",
"args": [
"-y",
"@yafldev/[email protected]"
],
"env": {
"YAFL_API_KEY": "<YAFL_API_KEY>"
}
}
}
}
{
"mcpServers": {
"mcp": {
"command": "npx",
"args": [
"-y",
"@yafldev/[email protected]"
],
"env": {
"YAFL_API_KEY": "<YAFL_API_KEY>"
}
}
}
}
{
"servers": {
"mcp": {
"type": "stdio",
"command": "npx",
"args": [
"-y",
"@yafldev/[email protected]"
],
"env": {
"YAFL_API_KEY": "<YAFL_API_KEY>"
}
}
}
}
Replace the values in angle brackets with your own. Keys stay on your machine; we never see them.
Tools
This server runs locally, so its tools are listed by your MCP client once it starts.
Environment variables
| Name | Description |
|---|---|
YAFL_API_KEYOptional, secret | API key for authenticated transfers. Optional — omit and run `yafl login` (device flow) instead. |
Details
| Package | @yafldev/[email protected] (NPM, stdio) |
| First published | 1 Aug 2026 |
| Last updated | 1 Aug 2026 |
| Registry name | dev.yafl/mcp |
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