ONCE — Exactly-Once Reliability for AI Agent Actions for Claude Desktop
io.github.gsterlingpress/once
Prevent duplicate AI-agent side effects with idempotency, verification, and durable receipts.
client:Claude Desktop
transport:streamable-http
Install ONCE — Exactly-Once Reliability for AI Agent Actions in Claude Desktop
~/Library/Application Support/Claude/claude_desktop_config.json · windows: %APPDATA%\Claude\claude_desktop_config.json
{
"mcpServers": {
"once": {
"command": "npx",
"args": [
"-y",
"mcp-remote",
"https://optimistic-compassion-production.up.railway.app/mcp"
]
}
}
}Claude Desktop has no remote transport in its config file, so this bridges through mcp-remote. Restart the app after saving. Claude Desktop docs