Treasury Suite · historical-rates
Historical Rate Lookup
IAS 21 and IFRS audit grade. Back to 1999.
Every ECB rate back to 1999, IAS 21 grade
// Pricing
£29/ mo
Standalone à la carte
DELIVERYAPI · embed · WL
SLA99.9% uptime
SUPPORTEmail · 1 BD
// 02 · Built for
Accountants closing the books in any currency.
// 03 · Features
What you get out of the box.
ECB end-of-day rates back to 4 Jan 1999
Month-end / quarter-end / year-end snapshots
Average / closing / spot toggle
CSV export with audit watermark
Bulk historical conversion (up to 10,000 lines)
// Inputs
Authoritative feeds only
- ›ECB SDW
- ›Frankfurter.dev
- ›BoE rates
// Outputs
Ship to your stack
- ›CSV
- ›Audit-stamped PDF
- ›API
// 05 · Use cases
When to reach for it.
USE CASE 1
Restate prior-period balances under IAS 21
USE CASE 2
Defend FX gain/loss positions in audit
USE CASE 3
Settle disputes about which rate was used and when
// 06 · Integration
First API call in 30 minutes.
~/onefintel · historical-rates
// Set your API key once
$ export ONEFINTEL_KEY="sk_live_..."
// Call the Historical Rate Lookup endpoint
$ curl https://api.onefintel.com/v1/treasury/historical-rates \
-H "Authorization: Bearer $ONEFINTEL_KEY"
// Returns JSON in under 200ms
// 07 · FAQ
Questions about Historical Rate Lookup.
- What does Historical Rate Lookup cost?
- Historical Rate Lookup is £29/month standalone. Also included in the Enterprise tier at £249/month — alongside all other modules in both suites.
- Who is Historical Rate Lookup for?
- Accountants closing the books in any currency.
- What data sources does Historical Rate Lookup use?
- Historical Rate Lookup pulls from: ECB SDW; Frankfurter.dev; BoE rates.
- How can I integrate Historical Rate Lookup?
- Three delivery surfaces — all included in every paid plan: embed widget (iframe), REST API (bearer-token), or white-label site (custom domain). Pick whichever fits your stack.
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// 08 · Pairs well with
More from Treasury Suite.
// Module
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Multi-currency live ticker with 30s refresh and sparklines
£15/mo
// Module
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170+ currencies, audit-grade output
£19/mo
// Module
FX Analytics
24h performance, volatility charts, regional summary
£39/mo
// Module
Cross-Rate Matrix
Custom 20-currency dashboard with click-to-chart
£25/mo
Try Historical Rate Lookup on real data.
Two free demo runs per email. No card. No commitment.