Create list
Create an empty contact list with a unique name.
MCP tool constant_contact_write → create_list
write
Creates a list that no email goes to until you schedule one to it, and returns its list_id. The name must differ from every other list; a repeated name fails. It reaches no one and a list you do not need is simply left empty, so it does not wait for your OK.
Parameters
| Name | Type | Description |
|---|---|---|
| name string required | string | List name, unique in the account. |
| description string | string | Up to 255 characters. |
tools/call
{
"jsonrpc": "2.0",
"id": 1,
"method": "tools/call",
"params": {
"name": "constant_contact_write",
"arguments": {
"operation": "create_list",
"arguments": {
"name": "Jane Doe"
}
}
}
}Example response
{
"content": [
{
"type": "text",
"text": "{ ... same JSON as structuredContent ... }"
}
],
"structuredContent": {
"list_id": "9d2e4b7a-1c3f-4a58-b6e0-7f8a2c5d1e90",
"name": "Re-engage Oct 2026",
"contacts": 0
},
"isError": false
}