China working-day data, UK bank holidays, IANA time zones and deterministic business deadlines.
Connect Remote server
claude mcp add --transport http calcgrid https://tttkmbb.com/mcp
{
"mcpServers": {
"calcgrid": {
"url": "https://tttkmbb.com/mcp"
}
}
}
{
"servers": {
"calcgrid": {
"type": "http",
"url": "https://tttkmbb.com/mcp"
}
}
}
Settings > Connectors > Add custom connector
URL: https://tttkmbb.com/mcp
Tools
The tool list was not available in our last check.
Details
| Endpoint | https://tttkmbb.com/mcp (Streamable HTTP) |
| First published | 27 Sep 2026 |
| Last updated | 27 Sep 2026 |
| Registry name | com.tttkmbb/calcgrid |
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