Log time
Log hours on an issue or a project with an activity and a comment.
MCP tool redmine_write → log_time
write
Creates a time entry for the signed-in account and returns it. Pass issue_id or project_id. Hours are decimals, so 0.25 is 15 minutes. The activity is required unless the instance has a default; the comment is 255 characters at most. log_time runs without asking first: it reaches no one and is corrected with update_time_entry.
Parameters
| Name | Type | Description |
|---|---|---|
| issue_id integer | integer | Issue to log on. Give this or project_id. |
| project_id integer | integer | Project to log on when no issue applies. |
| hours number required | number | Decimal hours, e.g. 1.5. |
| activity_id integer | integer | Activity ID from list_issue_options. Required unless the instance has a default activity. |
| spent_on date | date | Day worked, YYYY-MM-DD. Default: today. |
| comments string | string | Short description, 255 characters at most. |
tools/call
{
"jsonrpc": "2.0",
"id": 1,
"method": "tools/call",
"params": {
"name": "redmine_write",
"arguments": {
"operation": "log_time",
"arguments": {
"issue_id": 4821,
"hours": 1.5,
"activity_id": 9,
"spent_on": "2026-10-15",
"comments": "Reproduced the login loop and patched the session check"
}
}
}
}Example response
{
"content": [
{
"type": "text",
"text": "{ ... same JSON as structuredContent ... }"
}
],
"structuredContent": {
"time_entry_id": 18433,
"project": "Billing portal",
"issue_id": 4821,
"user": "Dana Whitfield",
"activity": "Development",
"hours": 1.5,
"spent_on": "2026-10-15",
"comments": "Reproduced the login loop and patched the session check"
},
"isError": false
}