Create a broadcast tournament
Create a broadcast for an over-the-board event, to which rounds are added next.
MCP tool lichess_write → create_broadcast
write Confirm
Creates the broadcast and returns its ID and URL. Visibility decides who can see it: Public, Unlisted (only from the link) or Private (only invited members). A public one is visible to everyone, so it reaches other people. By default you confirm each call; you can switch that off for this tool.
Parameters
| Name | Type | Description |
|---|---|---|
| name string required | string | Tournament name. |
| visibility string | string | public, unlisted or private. Default public. Public does not list it on the main Broadcasts page. |
| description string | string | Long description in Markdown, shown in the broadcast overview. |
| show_scores boolean | boolean | Show players' scores from the broadcast games. |
| show_rating_diffs boolean | boolean | Show estimated rating changes from the broadcast games. |
tools/call
{
"jsonrpc": "2.0",
"id": 1,
"method": "tools/call",
"params": {
"name": "lichess_write",
"arguments": {
"operation": "create_broadcast",
"arguments": {
"name": "Riverside Chess Club Championship 2026",
"visibility": "private",
"description": "Six rounds, one game per round, Saturdays at 10:00.",
"show_scores": false,
"show_rating_diffs": false
}
}
}
}Example response
{
"content": [
{
"type": "text",
"text": "{ ... same JSON as structuredContent ... }"
}
],
"structuredContent": {
"broadcast_id": "Zp4tNc6h",
"name": "Riverside Chess Club Championship 2026",
"visibility": "private",
"url": "https://lichess.org/broadcast/riverside-chess-club-championship-2026/Zp4tNc6h",
"rounds": []
},
"isError": false
}