fee kind
Which shape a charge line takes.
fee status
Whether the line is being charged.
fee charged_by
Whose charge the line is.
conversion clamp
Whether the market rate was held at parity.
conversion rate_source
Where the rate came from. Anything other than kraken means parity was used instead of a live sample.
pricing tier
The pricing tier the quote was priced at. starting_tier takes the same values and says which one you were on before this month’s volume was counted.
Your thresholds and the rate at each tier are in your contract, not in the API.