Travel Per Diem & Allowance Calculator
Server Details
Compliant per diems in one call: official US GSA, German BMF and UK HMRC rates, with a trip…
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- Status
- Unhealthy
- Uptime
- 68.4% over 23 days
- Last Tested
- Transport
- Streamable HTTP
- URL
TDQS
Scored across 4 tools
The four core tools (calculate_trip_allowance, get_per_diem_rates, list_per_diem_regimes, search_per_diem_locations) have distinct purposes, but the regime entries (de-bmf, us-gsa, us-state, uk-hmrc) read like overlapping ways to produce the same allowance output as calculate_trip_allowance, so it is unclear when to call a regime tool versus the general calculator.
Core tools follow a clean snake_case verb_noun pattern, but the regime tools use kebab-case codes (de-bmf, us-gsa, us-state, uk-hmrc) that are neither verb_noun nor the same convention, producing a mixed naming scheme across the set.
A count of 4 core tools is well-scoped for a rate/allowance calculator, with each tool earning its place (compute, look up rates, list regimes, search locations); if the regime entries are separate tools the set is still within a reasonable range.
The surface covers the key lifecycle: searching locations, listing regimes, fetching rates, and computing trip allowances with fallbacks and freshness. Minor gaps exist (e.g., no batching or explicit error/reconciliation tooling), but core workflows are covered.
Tool Schema Changelog
Recent tool additions, removals, and schema changes observed during successful MCP inspections.
3 tool updates
- Changed
calculate_trip_allowance2 fields changed- changed
Input schema / properties / regime / enumPrevious value: -[ - "de-bmf", - "us-gsa", - "uk-hmrc" -]New value: +[ + "de-bmf", + "us-gsa", + "us-state", + "uk-hmrc" +] - changed
Output schema / properties / regime / enumPrevious value: -[ - "de-bmf", - "us-gsa", - "uk-hmrc" -]New value: +[ + "de-bmf", + "us-gsa", + "us-state", + "uk-hmrc" +]
- Changed
get_per_diem_rates4 fields changed- changed
Input schema / properties / regime / descriptionPrevious value: -"de-bmf (Germany), us-gsa (US CONUS) or uk-hmrc (UK overseas scale rates)"New value: +"de-bmf (Germany), us-gsa (US CONUS), us-state (US State Dept foreign) or uk-hmrc (UK overseas scale rates)" - changed
Input schema / properties / regime / enumPrevious value: -[ - "de-bmf", - "us-gsa", - "uk-hmrc" -]New value: +[ + "de-bmf", + "us-gsa", + "us-state", + "uk-hmrc" +] - changed
Output schema / properties / regime / enumPrevious value: -[ - "de-bmf", - "us-gsa", - "uk-hmrc" -]New value: +[ + "de-bmf", + "us-gsa", + "us-state", + "uk-hmrc" +] - added
Output schema / properties / us_stateAdded value: +{ + "anyOf": [ + { + "properties": { + "breakfast": { + "description": "M&IE breakdown (FTR ch. 301 Appendix B): breakfast", + "title": "Breakfast", + "type": "number" + }, + "country_label": { + "description": "Country as named by the State Dept", + "title": "Country Label", + "type": "string" + }, + "dinner": { + "description": "M&IE breakdown: dinner", + "title": "Dinner", + "type": "number" + }, + "effective_from": { + "description": "Date the State Dept made this post's current rate effective", + "format": "date", + "title": "Effective From", + "type": "string" + }, + "first_last_day": { + "description": "75 % of M&IE for the first and last day of travel", + "title": "First Last Day", + "type": "number" + }, + "footnote_url": { + "description": "Where the footnotes are explained", + "title": "Footnote Url", + "type": "string" + }, + "footnotes": { + "description": "State Dept footnote numbers for this post (see footnote_url)", + "items": { + "type": "integer" + }, + "title": "Footnotes", + "type": "array" + }, + "incidentals": { + "description": "M&IE breakdown: incidental expenses", + "title": "Incidentals", + "type": "number" + }, + "lodging": { + "description": "Maximum lodging rate for the requested date (USD)", + "title": "Lodging", + "type": "integer" + }, + "lunch": { + "description": "M&IE breakdown: lunch", + "title": "Lunch", + "type": "number" + }, + "mie": { + "description": "Meals & incidental expenses rate per full day (USD)", + "title": "Mie", + "type": "integer" + }, + "post": { + "description": "Post (location) as named by the State Dept; 'Other' = rest of the country", + "title": "Post", + "type": "string" + }, + "seasons": { + "description": "Seasons of this post (a season may wrap the year end, e.g. 10-01..04-30)", + "items": { + "properties": { + "end": { + "description": "Season end as MM-DD", + "title": "End", + "type": "string" + }, + "lodging": { + "description": "Maximum lodging rate per night (USD)", + "title": "Lodging", + "type": "integer" + }, + "mie": { + "description": "M&IE rate per day (USD)", + "title": "Mie", + "type": "integer" + }, + "start": { + "description": "Season start as MM-DD", + "title": "Start", + "type": "string" + } + }, + "required": [ + "start", + "end", + "lodging", + "mie" + ], + "title": "GsaSeason", + "type": "object" + }, + "title": "Seasons", + "type": "array" + } + }, + "required": [ + "post", + "country_label", + "lodging", + "mie", + "breakfast", + "lunch", + "dinner", + "incidentals", + "first_last_day", + "seasons", + "effective_from", + "footnotes", + "footnote_url" + ], + "title": "StateDetail", + "type": "object" + }, + { + "type": "null" + } + ], + "description": "us-state breakdown (only for regime us-state)" +}
- Changed
search_per_diem_locations4 fields changed- changed
Input schema / properties / regime / enumPrevious value: -[ - "de-bmf", - "us-gsa", - "uk-hmrc" -]New value: +[ + "de-bmf", + "us-gsa", + "us-state", + "uk-hmrc" +] - changed
Output schema / properties / items / items / properties / country / descriptionPrevious value: -"ISO 3166-1 alpha-2"New value: +"ISO 3166-1 alpha-2 ('*' for the us-state 'Other Foreign Localities' rate)" - changed
Output schema / properties / items / items / properties / regime / enumPrevious value: -[ - "de-bmf", - "us-gsa", - "uk-hmrc" -]New value: +[ + "de-bmf", + "us-gsa", + "us-state", + "uk-hmrc" +] - changed
Output schema / properties / regime / enumPrevious value: -[ - "de-bmf", - "us-gsa", - "uk-hmrc" -]New value: +[ + "de-bmf", + "us-gsa", + "us-state", + "uk-hmrc" +]
4 tool updates
- First observed
calculate_trip_allowance - First observed
get_per_diem_rates - First observed
list_per_diem_regimes - First observed
search_per_diem_locations
Publisher details
- Operator
- Not applicable
- Operator website
- https://syntropicapi.com/apis/travel-per-diem · Publisher source
- Vendor relationship
- First-party
- Trust center
- Not applicable
- Restrictions
- Not applicable
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