July 2026
2026.07.02
Documented the full set of
riskEvaluation.reason codes returned when Circle’s
risk engine acts on a payment, payout, or transfer. Use these codes to
understand why a transaction was blocked and to build appropriate handling in
your integration.June 2026
2026.06.26
Added support for USDC and EURC on Cronos mainnet through Circle Mint, using the
CRONOS API chain code. For chain codes and confirmation times, see
Supported chains and currencies
and
Blockchain confirmations.May 2026
2026.05.01
Documentation updates
Rewrote the Circle Mint documentation to improve onboarding, product framing, quickstarts, and core reference material for supported chains, countries, and sandbox testing.The following topics were added or updated:April 2026
2026.04.27
Documentation additions
Added the following new topic for treasury reconciliation workflows:2026.04.03
Crypto Payouts and Crypto Address Book docs now include Singapore
(CIRCLE_SG) coverage. They add Travel Rule notes, payment reason codes, and
VASP data for hosted custody.Documentation additions
Documentation updates
- Crypto Payouts API: Documented
purposeOfTransferon create and get. Singapore (CIRCLE_SG) customers must send a payment reason code to create a payout. - Crypto Address Book API: Documented request and response shapes for General and Singapore (CIRCLE_SG) customer entities.
2026.04.02
Continuous payment intents are now the default type when
creating a payment intent.
Documentation additions
Added the following new topic to explain how stablecoin payins and payouts work, including continuous and transient payment intents:Documentation updates
Updated the following quickstarts to align terminology and structure with the stablecoin payins and payouts flow, and to make the steps easier to follow end-to-end:- How-to: Receive a stablecoin payin (formerly “Quickstart: Crypto Deposits”)
- How-to: Refund a stablecoin payin (formerly “Quickstart: Crypto Refunds”)
- How-to: Send a stablecoin payout (formerly “Send USDC from your Circle Mint Account”)
2026.04.01
Launched the Credit API, enabling programmatic access to Settlement Advance and
Line of Credit products. You can now initiate draws, track transfer status,
manage fees, and process repayments through endpoints under
/v1/credit/.Documentation updates
Added the following topics for the Credit API:March 2026
2026.03.10
Added support for USDC on the Morph blockchain.
Documentation updates
Updated the following topics to reflect USDC support on Morph:2026.03.10
Added support for USDC on the EDGE blockchain.