Connect tilwhen date engine and your agent gets 9 tools, among them add_days, business_days, days_between. It answers at https://mcp.tilwhen.com/mcp over streamable HTTP, and it listed its tools to an anonymous client, so no sign-in was needed for that. Our probes reached it 10 of 10 times since 5 September 2026; the last check, on 18 October 2026, succeeded.
Deterministic date arithmetic with auditable receipts: business days, due dates, holidays.
Description as the publisher wrote it.
| Tool | What it does |
|---|---|
add_days | The date N whole calendar days after a date (exclusive counting: the start date is day 0). Inputs: date, days, tz |
business_days | Span mode (from+to): business days between two dates, exclusive of the start day, inclusive of the end day. Add mode (days, optional date): the date N business days away. Optional holiday jurisdiction or custom calendar, and a selectable wo Inputs: from, to, date, days, jurisdiction, customHolidays |
days_between | Signed whole calendar days from one date to another, midnight to midnight, endpoints exclusive (the gap). Inputs: from, to, tz |
explain | Runs any operation and returns the receipt plus human-readable derivation steps. Accepts the same fields as the other tools, discriminated by op. Inputs: op, date, days, from, to, invoiceDate |
holidays | Observed public holidays with the nominal (legal) date and status: rule (statutory) or declared (officially declared for that year). Declared-only holidays are omitted for undeclared years, with a holiday_data_incomplete warning. Inputs: jurisdiction, year |
invoice_due | Due date for Net-N payment terms (calendar days, invoice date = day 0). Optional roll-forward past weekends and, with a jurisdiction or custom calendar, public holidays. Inputs: invoiceDate, net, roll, jurisdiction, customHolidays, workweek |
next_occurrence | The next occurrence strictly after the base date (default today) of either a tracked event slug (e.g. "christmas") or a weekday (0 = Sunday .. 6 = Saturday). Provide exactly one of event/weekday. Inputs: event, weekday, from, tz |
parse_date_query | Parses queries like "90 business days from today in uganda" into a normalized operation, answers it, and returns the auditable receipt. Ambiguous dates (03/04/2027) return needsClarification instead of a guess. Inputs: q, tz, locale |
subtract_days | The date N whole calendar days before a date. Inputs: date, days, tz |
Every block below points at https://mcp.tilwhen.com/mcp. Pick your client and copy.
claude mcp add --transport http tilwhen-date-engine https://mcp.tilwhen.com/mcp
{
"mcpServers": {
"tilwhen-date-engine": {
"command": "npx",
"args": ["-y", "mcp-remote", "https://mcp.tilwhen.com/mcp"]
}
}
}{
"mcpServers": {
"tilwhen-date-engine": {
"url": "https://mcp.tilwhen.com/mcp"
}
}
}{
"servers": {
"tilwhen-date-engine": {
"type": "http",
"url": "https://mcp.tilwhen.com/mcp"
}
}
}{
"context_servers": {
"tilwhen-date-engine": {
"url": "https://mcp.tilwhen.com/mcp"
}
}
}{
"mcpServers": {
"tilwhen-date-engine": {
"serverUrl": "https://mcp.tilwhen.com/mcp"
}
}
}{
"mcpServers": {
"tilwhen-date-engine": {
"url": "https://mcp.tilwhen.com/mcp"
}
}
}name: tilwhen date engine
version: 0.0.1
schema: v1
mcpServers:
- name: tilwhen date engine
type: streamable-http
url: https://mcp.tilwhen.com/mcp{
"mcpServers": {
"tilwhen-date-engine": {
"httpUrl": "https://mcp.tilwhen.com/mcp"
}
}
}{
"mcpServers": {
"tilwhen-date-engine": {
"type": "http",
"url": "https://mcp.tilwhen.com/mcp"
}
}
}{
"mcpServers": {
"tilwhen-date-engine": {
"url": "https://mcp.tilwhen.com/mcp"
}
}
}goose://extension?url=https%3A%2F%2Fmcp.tilwhen.com%2Fmcp&type=streamable_http&id=tilwhen-date-engine&name=tilwhen%20date%20engine
It answered our last check on 18 October 2026 in 192 ms. Over 10 checks since 5 September 2026 it answered 10. Status here comes from Neuronto's own probes, not from the publisher.
Yes. It is published by tilwhen.com and served from mcp.tilwhen.com, the vendor's own domain: https://mcp.tilwhen.com/mcp.
9, as returned by the server's own tools/list on 31 August 2026: add_days, business_days, days_between, explain, holidays, invoice_due, next_occurrence, parse_date_query, and 1 more.
It answered our last check on 18 October 2026 in 192 ms. Over 10 checks since 5 September 2026 it answered 10.
Put the server under mcpServers in ~/.cursor/mcp.json with the URL https://mcp.tilwhen.com/mcp. The exact JSON is above, with the same setup for Claude Code, Claude Desktop, VS Code, Windsurf, Zed, Gemini CLI and the rest.
It listed its tools to an anonymous client, so reading the tool list needs no key. Individual tools can still ask for credentials in their own inputs.
Publisher: com.tilwhen. Endpoint host: mcp.tilwhen.com. ARD identifier: urn:air:com.tilwhen:mcp:tilwhen.
First indexed 31 August 2026. The tools are exactly what the server returned; nothing on this page
is inferred from its name. Ranking in Neuronto search is never for sale.