Changelog

• v2 API: Add Paxos Transfers to enable asset movement between two Entities belonging to the same Organization or to a different Organization on the Paxos platform.
• v2 API: Add Update Profile to allow changing the nickname of an existing Profile.
• v2 API: The identity_id parameter is now optional with Create Fiat Account. Those with 3rd-Party integrations initiating transfers on behalf of their end users must continue to use the parameter.

• v2 API: Enable optional business_description parameter for the Create Identity, Update Identity, Get Identity and List Identities endpoints.
• v2 API: Add REAL_ESTATE and OTHER_SOURCE_OF_WEALTH to the customer_due_diligence.source_of_wealth enumeration on the Identity APIs.

• Docs, v2 API: Enable USDG on Ethereum. Add USDG docs.
• Docs, v2 API: Enable support for CUBIX API and update docs for Transfers and Fiat Transfers. All users of the Customers Bank integrations must start using CUBIX by November 11, 2024. See the CUBIX API migration guide.

• v2 API: Add DBS_ACT to Fiat Network Instructions.

• v2 API: Add optional crypto_tx_hashes filter to the List Transfers endpoint.
• v2 API: Add the following document types to Identity Documents APIs: AML_DOCUMENTS, FUND_STRUCTURE_CHART, FUND_MANAGER_REGISTRATION, MEMORANDUM_OF_ASSOCIATION, ORGANIZATIONAL_CHART, FOUNDATION_BY_LAWS, APPOINTMENT_OF_GUARDIAN_EVIDENCE, LEGAL_DOMICILE_OF_BENEFICIAL_OWNERS, GOVERNING_BODY_MEMBER_NAMES.

• v2 API: Add three new optional fields to the customer_due_diligence object of the Identity API (Create Identity and Update Identity).
• v2 API: Add new ENUM value GOVERNMENT_BENEFITS to the customer_due_diligence object field source_of_funds in the Identity API (Create Identity and Update Identity).

• v2 API: Add is_merchant field to the Identity API (Update Identity, Get Identity, List Identities).

• v2 API: Updated rate limit on Identity API from 50 to 10 requests per second.

• Docs, v2 API: Add new Settlement APIs which allow for atomic one-way or two-way transfers across Paxos accounts. Also added Settlement integration guide.

• FIX: Enforce a maximum of 150 messages per second, per session.

• Docs: Add stablecoin payments documentation.

• v2 API: All metadata specified when creating a crypto deposit address is now inherited by deposit activities.

• Funding: Paxos is upgrading its wallet infrastructure, impacting customers' crypto deposit addresses for BTC, ETH, BCH, LTC and all ERC20 tokens. This planned change is part of our commitment to continuous product and security improvements. Users will be required to retrieve the new crypto deposit address via the UI or CreateDepositAddress API no earlier than February 15, 2024, and no later than June 13, 2024. Old deposit addresses will come with a deprecated warning until June 13, 2024. After this date they will no longer be supported.

• Docs, v2 API: Enable PYUSD on Solana. Update PYUSD docs with mainnet and testnet addresses.

• v2 API: Add optional is_merchant boolean field to the Create Identity request body and the List Identities, Create Identity, Get Identity and Update Identity responses.

• Breaking Change: Update the FIX infrastructure to improve performance, reliability and security for FIX connections. This change enables multiple FIX connections for a single account and improves TLS certificate management, among other changes. All existing FIX users are required to migrate to the new infrastructure no later than May 4, 2024. See the migration guide or Contact Support for details.

• v2 API: Add new attribute compatible_crypto_networks to the Create Deposit Address and List Deposit Addresses API responses. This field contains the compatible networks with the created or already existing deposit address.

• v2 API: Add Insufficient Funds 403 error response to Create Fiat Withdrawal endpoint.

• Docs, v2 API: Add Fiat Transfers integration guide to Paxos Documentation and update reference docs.

• v2 API: Add new Fiat Transfer APIs which allow for automatic funding and withdrawal of fiat in a Paxos account.

• Docs, v2 API: Publish Production version of Fiat Transfers reference documentation.

• v1 API, v2 API: Update REST Transfer API Rate Limit to 20 requests per second.
  • /v1/transfers/peer
  • /v1/transfers/profile
  • /v1/crypto-withdrawals
  • /v2/transfer/internal
  • /v2/transfer/crypto-withdrawals

• v1 API, v2 API: The address1, city and province fields are no longer explicitly marked as required in the MailingAddress object. The v1 API CreateBankAccount endpoint and the v2 API Create Fiat Account and Update Fiat Account endpoints will continue to validate these fields if they exist.

• FIX: Add SelfMatchPreventionID (tag 2362) to prevent matching against an opposite side order submitted by the same Crypto Brokerage customer. If this tag is not submitted, an order that matches against another order submitted by the same customer will cancel the original resting order.

• Sandbox: PYUSD trading pairs are available in the Sandbox environment for REST and FIX users. All relevant endpoints support PYUSD-based trading pairs (for example, BTC:PYUSD and ETH:PYUSD among other). Contact Support for details.

• v2 API: Add optional field self_match_prevention_id to Create Order. This field is used to prevent matching against an opposite side order submitted by the same Crypto Brokerage customer. If this field is not submitted, an order that matches against another order submitted by the same customer will cancel the original resting order.

• Docs: Correctly identify the markets, transfer_type, account_id and tax_year query parameters as required to reflect actual API behavior. Auto-generated and other clients relying on the OpenAPI spec file may require updates.

v2 API: The List Tickers v2 API service has reached End of Life. Requests now return a 404 Error. All integrations must use Get Ticker or List Prices. The migration guide provides additional information.