Give an agent a calendar it can book without double-booking: find, hold, then commit atomically.
Setup
Choose your client, copy the config, then fill in any required environment variables.
claude mcp add deltat --env DELTAT_PASSWORD='<DELTAT_PASSWORD>' -- npx -y @open-deltat/mcp~/.codex/config.toml
[mcp_servers.deltat]
command = "npx"
args = ["-y", "@open-deltat/mcp"]
env = { DELTAT_PASSWORD = "<DELTAT_PASSWORD>" }
# codex mcp add deltat --env DELTAT_PASSWORD='<DELTAT_PASSWORD>' -- npx -y @open-deltat/mcp~/.cursor/mcp.json
{
"mcpServers": {
"deltat": {
"command": "npx",
"args": [
"-y",
"@open-deltat/mcp"
],
"env": {
"DELTAT_PASSWORD": "<DELTAT_PASSWORD>"
}
}
}
}.vscode/mcp.json
{
"servers": {
"deltat": {
"type": "stdio",
"command": "npx",
"args": [
"-y",
"@open-deltat/mcp"
],
"env": {
"DELTAT_PASSWORD": "<DELTAT_PASSWORD>"
}
}
}
}~/.gemini/settings.json
{
"mcpServers": {
"deltat": {
"command": "npx",
"args": [
"-y",
"@open-deltat/mcp"
],
"env": {
"DELTAT_PASSWORD": "<DELTAT_PASSWORD>"
}
}
}
}claude_desktop_config.json
{
"mcpServers": {
"deltat": {
"command": "npx",
"args": [
"-y",
"@open-deltat/mcp"
],
"env": {
"DELTAT_PASSWORD": "<DELTAT_PASSWORD>"
}
}
}
}.trae/mcp.json
{
"mcpServers": {
"deltat": {
"command": "npx",
"args": [
"-y",
"@open-deltat/mcp"
],
"env": {
"DELTAT_PASSWORD": "<DELTAT_PASSWORD>"
}
}
}
}Environment variables
DELTAT_PASSWORD
Replace the placeholders with your own credentials and keep them out of version control.