MCP server for CalDAV calendars: events, tasks and journals over the open standard
Setup
Choose your client, copy the config, then fill in any required environment variables.
claude mcp add caldav-calendars --env CALDAV_URL='<CALDAV_URL>' --env CALDAV_PASSWORD='<CALDAV_PASSWORD>' --env CALDAV_TOKEN='<CALDAV_TOKEN>' -- npx -y @ni-c/caldav-mcp~/.codex/config.toml
[mcp_servers.caldav-calendars]
command = "npx"
args = ["-y", "@ni-c/caldav-mcp"]
env = { CALDAV_URL = "<CALDAV_URL>", CALDAV_PASSWORD = "<CALDAV_PASSWORD>", CALDAV_TOKEN = "<CALDAV_TOKEN>" }
# codex mcp add caldav-calendars --env CALDAV_URL='<CALDAV_URL>' --env CALDAV_PASSWORD='<CALDAV_PASSWORD>' --env CALDAV_TOKEN='<CALDAV_TOKEN>' -- npx -y @ni-c/caldav-mcp~/.cursor/mcp.json
{
"mcpServers": {
"caldav-calendars": {
"command": "npx",
"args": [
"-y",
"@ni-c/caldav-mcp"
],
"env": {
"CALDAV_URL": "<CALDAV_URL>",
"CALDAV_PASSWORD": "<CALDAV_PASSWORD>",
"CALDAV_TOKEN": "<CALDAV_TOKEN>"
}
}
}
}.vscode/mcp.json
{
"servers": {
"caldav-calendars": {
"type": "stdio",
"command": "npx",
"args": [
"-y",
"@ni-c/caldav-mcp"
],
"env": {
"CALDAV_URL": "<CALDAV_URL>",
"CALDAV_PASSWORD": "<CALDAV_PASSWORD>",
"CALDAV_TOKEN": "<CALDAV_TOKEN>"
}
}
}
}~/.gemini/settings.json
{
"mcpServers": {
"caldav-calendars": {
"command": "npx",
"args": [
"-y",
"@ni-c/caldav-mcp"
],
"env": {
"CALDAV_URL": "<CALDAV_URL>",
"CALDAV_PASSWORD": "<CALDAV_PASSWORD>",
"CALDAV_TOKEN": "<CALDAV_TOKEN>"
}
}
}
}claude_desktop_config.json
{
"mcpServers": {
"caldav-calendars": {
"command": "npx",
"args": [
"-y",
"@ni-c/caldav-mcp"
],
"env": {
"CALDAV_URL": "<CALDAV_URL>",
"CALDAV_PASSWORD": "<CALDAV_PASSWORD>",
"CALDAV_TOKEN": "<CALDAV_TOKEN>"
}
}
}
}.trae/mcp.json
{
"mcpServers": {
"caldav-calendars": {
"command": "npx",
"args": [
"-y",
"@ni-c/caldav-mcp"
],
"env": {
"CALDAV_URL": "<CALDAV_URL>",
"CALDAV_PASSWORD": "<CALDAV_PASSWORD>",
"CALDAV_TOKEN": "<CALDAV_TOKEN>"
}
}
}
}Environment variables
CALDAV_URLCALDAV_PASSWORDCALDAV_TOKEN
Replace the placeholders with your own credentials and keep them out of version control.