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Financial Data API publishes official daily FX reference rates — the published fixings central banks and statistical agencies release once per business day, such as the European Central Bank’s euro reference rates. They live under the fx category as the canonical indicator fx_reference_rate and flow through the same observation envelope, time model, and provenance chain as macro data.
These are official reference rates, not raw real-time market price-tick FX. Tick-level vendor FX is redistribution-blocked and deliberately not part of the product. A reference rate is one authoritative value per currency pair per day — ideal for valuation, reporting, and point-in-time conversion, not for intraday trading.

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What data is available

fx_reference_rate

Daily reference exchange rate for a currency pair. Sourced from the official publisher (for example the European Central Bank). Each observation identifies the pair in its metadata and provenance. Unit: an exchange rate (units of one currency per unit of the other).
The set of published pairs is live; resolve it from the data rather than hardcoding. The ECB reference set, for example, quotes the euro against major currencies (USD, GBP, JPY, CHF, CAD, AUD, NZD, SEK, NOK, and more).

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Query the latest reference rates

curl "https://api.financialdatapi.com/observations/latest?indicator_id=fx_reference_rate" \
  -H "x-api-key: $FINANCIALDATA_API_KEY"
For history, page through GET /observations?indicator_id=fx_reference_rate and follow the cursor. See Pagination.

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Response shape

Each row is a standard public observation. The fields most relevant to FX:
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indicatorId
string
Always fx_reference_rate.
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category
string
fx.
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actual
number
The reference rate for the pair.
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provider
string
The publishing institution, for example European Central Bank.
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periodEnd
string
The rate date.
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sourceUrl
string
Link to the originating release.
The currency pair is carried in the observation metadata and provenance. Use GET /provenance/observations/{observationId} for the full auditable chain behind any rate.

Interest rates

Policy rates, bond yields, and curve spreads.

Coverage & sources

Every data family and the institutions behind them.

Time model

Knowledge time vs. period, and point-in-time queries.