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Endpoint
| Method | GET |
| Path | /public/v1/quote/onetime |
| Ring | public (unauthenticated) |
Parameters
Query parameters:
| Param | Type | Notes |
|---|---|---|
amount | integer (GBP) | Principal in whole pounds. Bounded to £50–£500. |
term | integer (days) | Bounded to 14–84 days. |
frequency | enum | weekly | fortnightly | monthly. |
Response
A JSON quote for the Business Loan: the representative repayment breakdown for the requested amount and term. Amounts are labelled with their unit. Only the Business Loan is quotable through this endpoint — it is the always-on product with a pure amount-and-term shape. The same computation is available to agents via the MCP tool get_quote.
Errors
A 422 if amount or term falls outside the engine's range, with a detail explaining the bound. A 429 on rate-limit. See the public error table.
Frequently asked questions
Why only the Business Loan?
The one-time quote endpoint quotes the Business Loan because it has a pure amount-and-term shape that produces a single representative figure. Flex is revolving and Slice is biller-driven, so they are previewed through their own journeys rather than this endpoint.
What happens if I ask for £1,000?
You get a 422 — £1,000 is outside the £50–£500 range the engine enforces. The error detail states the bound so you can clamp your input. Send an amount within range to get a quote.
Related reading

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