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Temenos Transact API

Temenos Transact (formerly T24) is the flagship real-time core banking platform from Temenos, running deposits, lending, payments, treasury, wealth, and Islamic banking for 950+ banks across retail, corporate, and inclusive segments. An unofficial API lets you programmatically pull accounts, balances, transactions, customers, loans, deposits, and payment orders—and push updates like fund transfers, standing orders, new arrangements, and forex deals back into Transact across on-prem, cloud, and SaaS deployments.

By Alex KlarfeldMay 30, 2026
Temenos Transact API

What is Temenos Transact?

Temenos Transact (formerly T24) is the flagship real-time core banking platform from Temenos, delivering the most extensive set of banking functionality across Retail, Corporate, Treasury, Wealth, and Payments. Banks use Transact to administer accounts and deposits, originate and service loans, process fund transfers and standing orders, run treasury and foreign-exchange deals, and support inclusive and Islamic banking—deployed on-premises, on cloud, or as Temenos SaaS.

Core business domains and API categories include:

  • Holdings (accounts, arrangements, positions, deposit arrangements, loan creation, transaction details)
  • Order (fund transfers, standing order instructions, PSD2/SEPA payment services, treasury and securities orders)
  • Party (customer and financial-institution data, KYC details, delivery preferences, beneficiaries)
  • Product (product catalogs, types, groups, interest conditions) and Reference data (currencies, country codes)
  • Treasury & Foreign Exchange (spot, forward, swap, and limit forex orders; broker and multi-rate deals)
  • Enterprise, Settings, and System (product pricing/design, configuration tables, available services)

Common data entities:

  • Accounts, Balances, Transactions, Accounting Entries, Reservations
  • Deposit Arrangements (short-term, long-term, call, Islamic), Loans (personal, commercial, mortgage, line of credit)
  • Customers, Parties, KYC Records, Beneficiaries, Delivery Preferences
  • Fund Transfers, Standing Orders, Bulk Transfers, Payment Orders
  • Forex Deals, Treasury Orders, Securities Instruments, Limits and Facilities
  • Products, Interest Conditions, Currencies, Country Codes, Reference Tables

The Temenos Transact Integration Challenge

Banks run mission-critical, real-time workloads on Transact, but turning a heavily configured core banking system into reliable API-driven automation is non-trivial:

  • Bank-by-bank customization: Product definitions, business rules, and parameter tables are tailored per institution—generic integrations break across deployments
  • Version and framework variability: Endpoint coverage differs by release; the IRIS REST framework and OFS message format behave differently across T24 versions and upgrade levels
  • Deployment spread: On-prem, private cloud, and Temenos SaaS tenants expose different network surfaces, auth models, and entitlements
  • Authentication complexity: API keys, OAuth, and bank-side MFA controls complicate headless, production automation
  • OFS and message semantics: Many operations route through the OFS message format, requiring precise field mapping, validation, and reason-code handling
  • Regulatory and audit demands: Payment, lending, and treasury transactions require effective dating, idempotency, and full audit trails for compliance

How Supergood Creates Temenos Transact APIs

Supergood reverse-engineers authenticated sessions, the IRIS REST framework, and OFS-backed interactions to deliver a resilient API layer for your Transact deployment—across Holdings, Order, Party, and Treasury domains and any release version.

  • Handles API key, OAuth, and MFA-protected sessions securely in a managed credential vault
  • Maintains session continuity with automated refresh and change detection across releases
  • Normalizes responses across accounts, payments, loans, and forex so you integrate once and rely on consistent objects
  • Aligns with bank-specific product definitions, parameter tables, and entitlements to ensure compliant access

Use Temenos Transact with AI agents: Temenos Transact MCP Server →

Getting Started

  • Schedule Integration Assessment

Book a 30-minute session to confirm your modules, release version, deployment model, and authentication setup.

  • Supergood Generates and Validates Your API

We deliver a production-ready Transact adapter tailored to your bank's configuration, parameter tables, and entitlements.

  • Deploy with Monitoring

Go live with continuous monitoring and automatic adjustments as Temenos releases and your configuration evolve.

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API Endpoints

Authentication

POST/authenticate

Authenticate to a Temenos Transact deployment using API key, OAuth, or MFA and obtain a session token for downstream calls.

Holdings

GET/accounts

List accounts and arrangements with balances, status, and currency filters across retail, corporate, and inclusive segments.

Holdings

GET/transactions

Retrieve transaction details and accounting entries for an account with date-range and type filters.

Party

GET/customers

Pull customer and financial-institution party records, KYC details, beneficiaries, and delivery preferences.

Order

POST/create_transfer

Initiate an inward, outward, or bulk fund transfer or standing order against an account, including SEPA and cross-border payments.

Holdings

POST/create_arrangement

Create a new deposit or loan arrangement (short-term, long-term, call, Islamic, personal, mortgage, or line of credit) against the bank's product definition.

Treasury

GET/forex_deals

List treasury and foreign-exchange deals including spot, forward, swap, and limit orders with rate and counterparty filters.

Use Cases

Sync account and transaction data into your warehouse

- Pull accounts, balances, and arrangements across retail, corporate, and inclusive segments into a single warehouse - Stream transaction and accounting-entry events to downstream BI, reconciliation, and AML tools - Reconcile customer and party records across deployments for a unified banking 360

Automate payments and standing orders

- Initiate inward, outward, and bulk fund transfers programmatically without portal clicks - Schedule and amend standing order instructions and SEPA/cross-border credit transfers - Track payment status, returns, and exceptions back into your operations workflows

Originate and service deposits and loans

- Create deposit and loan arrangements against bank-specific product definitions and interest conditions - Pull repayment schedules, balances, and accruals for downstream servicing and reporting - Push status changes and disbursements into Holdings while preserving audit trails

Integrate treasury and foreign-exchange activity

- Book and retrieve spot, forward, swap, and limit forex deals through the Order domain - Surface treasury positions, limits, and facilities to risk and reporting systems - Reconcile deal lifecycle events across the bank's treasury and core books

Technical Specifications

Authentication

API key, OAuth, and MFA handled in a managed session with an encrypted credential vault

Connectivity

Authenticated sessions plus the IRIS REST framework and OFS message format surfaced per the bank's release and deployment

Response format

Normalized JSON across Holdings, Order, Party, Product, and Treasury objects

Rate limits

Adaptive throttling tuned to your Transact tenant to avoid bank-side and host limits

Session management

Automatic session refresh, token rotation, and MFA replay handling

Data freshness

Near real-time reads for accounts, transactions, and payments with optional scheduled batch syncs

Security

Encrypted credential vault, scoped access tokens, SOC 2-aligned controls, and audit logging

Webhooks

Event-style callbacks for transactions, payment status, arrangement creation, and forex deal lifecycle

Latency

Sub-second reads on cached entities; multi-second writes when posting transfers and arrangements through OFS

Throughput

Horizontally scaled workers sized to high-volume retail, corporate, and treasury banking activity

Reliability

Retry, backoff, and idempotency keys for transfers, arrangements, and forex transactions

Adaptation

Continuous monitoring of Temenos releases, IRIS framework changes, and bank-specific configuration drift

Frequently asked questions

Yes. Temenos Transact is the current name for the platform formerly known as T24. Supergood works against the same core banking surfaces regardless of the release branding or version you run.

No. Supergood works with your existing Transact deployment and entitlements. Where IRIS REST APIs are available we use them; otherwise we operate against the same authenticated surfaces and OFS-backed operations your bank already relies on.

Yes. Supergood adapts to all three models. For SaaS and cloud tenants we work against your bank's surfaces; for on-prem we operate against the same authenticated endpoints with network configuration tuned to your environment.

Each deployment is profiled against its configured product definitions, business rules, and parameter tables. Supergood preserves bank-specific fields, lifecycle states, and entitlements rather than forcing a generic schema.

Yes. Holdings, Order, Party, and Treasury domains are exposed through one normalized API surface, so accounts, transfers, loans, deposits, and forex deals sit alongside each other without separate integrations.

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