Changelog

See below for our latest API changes. This release introduces Custom Benchmarks and floating / indexed rates — you can now tie account and pricing-group rates to market reference rates (SOFR, EFFR, Prime, and more) or to your own custom benchmarks, instead of managing fixed rates by hand. We recommend reviewing this page closely before beginning development or upgrading to a new API version.

New Endpoints

Custom Benchmarks — Define and manage your own reference rates, then attach them to accounts and pricing-group rate tiers as a floating-rate index.

• GET /digital-banking/v1/custom-benchmarks — List all custom benchmarks for your institution, including their current rates.
• POST /digital-banking/v1/custom-benchmarks — Create a custom benchmark with a name, optional description, and an initial rate (decimal, e.g. 0.0425 for 4.25%).
• GET /digital-banking/v1/custom-benchmarks/{custom_benchmark_id} — Retrieve a single custom benchmark.
• PATCH /digital-banking/v1/custom-benchmarks/{custom_benchmark_id} — Update a benchmark’s name and/or description. Does not change its rate.
• PUT /digital-banking/v1/custom-benchmarks/{custom_benchmark_id} — Set a new rate, optionally as of a future effective_at timestamp. Accounts indexed to the benchmark update automatically, and historical rates are preserved.
• DELETE /digital-banking/v1/custom-benchmarks/{custom_benchmark_id} — Delete a custom benchmark.

Updated Endpoints

• POST /digital-banking/v1/accounts (Create Account) and PATCH /digital-banking/v1/accounts/{account_id} (Update Account)
  • Accounts can now be opened or updated as floating-rate, indexed to a market reference rate or a custom benchmark. See the new rate_configuration and rate-index fields on AccountResponse below.

Schema Changes

• AccountResponse — added rate-configuration fields:

  • rate_configuration (RateConfiguration enum, required) — how the account’s rate is determined: FIXED, FLOATING_MARKET, FLOATING_CUSTOM, or TIERED.
  • rate (string, nullable), index_rate (string, nullable), and rate_index_type (ReferenceRateType, nullable) — the resolved rate and, for floating accounts, the market index it tracks.
  • custom_benchmark_id (uuid, nullable) and custom_benchmark_rate (string, nullable) — the custom benchmark the account is indexed to, if any.
  • floating_spread, floating_spread_bps, and floating_rate_percentage (nullable) — the spread/percentage applied over the index.

• InterestRateTier and PricingGroupRateTier (request & response)

  • Added rate_index_type (ReferenceRateType, nullable), custom_benchmark_id (uuid, nullable), and floating_rate_percentage (nullable) — rate tiers can now float against a market index or custom benchmark instead of being fixed.

• New enums

  • RateConfiguration — FIXED, FLOATING_MARKET, FLOATING_CUSTOM, TIERED
  • ReferenceRateType — market reference rates including EFFR, SOFR_1M/SOFR_3M/SOFR_6M/SOFR_12M, CMT_3M, WSJ_PRIME, and Fidelity money-market rates

• New schemas: CreateCustomBenchmarkRequest, PatchCustomBenchmarkRequest, UpdateCustomBenchmarkRateRequest