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TEOLOGU BUSINESS API · v1.0

Build on the financial infrastructure of TEOLOGU.

Give your software access to programmable financial capabilities across accounts, money movement, business operations, cards, accounting, data and automation.

The TEOLOGU Business API is designed as a modular developer layer for connecting external software with the TEOLOGU ecosystem. Build an internal finance system. Embed payments into your platform. Synchronise accounting. Create automated treasury workflows. Build your own financial products around TEOLOGU services.

// Create a payment programmatically
const payment = await teologu.payments.create({
  amount: 2500,
  currency: 'EUR',
  beneficiary: 'acc_8xK2mN9pQ',
  reference: 'INV-2026-0421'
});

A financial platform your software can program

TEOLOGU is being designed as more than a business banking interface. Its API layer can expose individual financial capabilities as programmable services, allowing developers to combine them into applications and workflows. Rather than building one large integration, developers can use the parts they need.

Accounts

Financial accounts, balances and account structures.

Money

Payments, transfers and supported movement of funds.

Transactions

Financial activity, references, categorisation and history.

Cards

Business cards, card activity and supported controls.

Expenses

Employee spending, receipts, approvals and reimbursements.

Invoices

Billing, invoice status, payment matching and reconciliation.

Accounting

Financial records and accounting workflows.

Analytics

Financial reporting, metrics and business intelligence.

Identity

Business, customer and counterparty information where supported.

Events

Real-time notifications through webhooks and event streams.

Automation

The ability to connect financial events to actions in external systems.

One ecosystem. Multiple API layers.

The TEOLOGU API should not be thought of as one collection of endpoints. It is a collection of API domains designed around different types of interaction. The result is a developer platform rather than a single banking integration.

Read information

  • Accounts & Balances
  • Transactions
  • Customers & Suppliers
  • Cards & Expenses
  • Invoices & Accounting records
  • Financial reports

Perform operations

  • Create a payment
  • Initiate a transfer
  • Create an invoice
  • Update an expense
  • Approve a workflow
  • Manage supported cards
  • Create financial records
  • Trigger business operations

Receive notifications

  • Payment completed / failed
  • Transaction created
  • Invoice paid
  • Expense submitted
  • Card status changed
  • Account updated
  • Transfer received

Connect external systems

  • Accounting platforms
  • ERP systems
  • CRM systems
  • Payroll systems
  • Treasury systems
  • Commerce platforms
  • Financial applications
  • Internal company software

Turn data into business information

  • Financial analytics
  • Cash-flow information
  • Spending analysis
  • Transaction categorisation
  • Reporting
  • Business metrics
  • Financial insights
ACCOUNTS API

Build applications around business accounts.

The Accounts API provides a programmatic interface to eligible TEOLOGU business-account information. This creates the foundation for applications that need to understand a company's financial position without requiring users to manually export information.

  • Business account details
  • Account identifiers
  • Account status
  • Available & Current balances
  • Currencies & Account metadata
  • Ownership, relationships & activity

Example

→ Your application
→ retrieves eligible account information
→ displays balances
→ analyses activity
→ connects financial information to internal workflows
TRANSACTIONS API

Make financial activity programmable.

Transactions are the underlying record of financial activity. The Transactions API can provide eligible transaction information to connected applications, enabling developers to build reconciliation, reporting, accounting and financial-management experiences.

  • Transaction ID, Amount, Currency
  • Date, timestamp, Description
  • Merchant, Counterparty, Reference
  • Category, Status, Account
  • Payment method, Transaction type
  • Supporting metadata

Built for more than reporting

→ Transaction
→ Categorisation
→ Accounting entry
→ Reconciliation
→ Analytics
→ Internal workflow → External system
PAYMENTS API

Put money movement into your software.

The Payments API is designed to make supported payment functionality accessible programmatically. This could allow a business platform, marketplace, accounting system or internal application to initiate or monitor supported financial activity without requiring users to move between systems.

  • Create payments
  • Retrieve payments & details
  • Track payment status
  • Retrieve payment history
  • Reference related transactions
  • Receive payment events & handle failures

Payment capabilities

Payment capabilities may cover different payment types and rails as the TEOLOGU ecosystem develops, allowing you to build supported payment workflows seamlessly.

TRANSFERS API

Move money between supported financial destinations.

A dedicated Transfers API can provide programmatic access to supported money-movement workflows. Where supported, transfer APIs can become the movement layer connecting accounts, payments, invoices and treasury operations.

  • Creating transfers & instructions
  • Beneficiary information
  • Transfer references & status
  • Transfer history & events
  • Scheduled transfers
  • Recurring workflows & reconciliation

Transfer flow

→ Create transfer
→ Validate beneficiary
→ Process movement
→ Update status & reconcile
BENEFICIARIES & COUNTERPARTIES API

Connect payments to the people and businesses behind them.

Financial workflows often depend on knowing who money is being sent to or received from. A dedicated counterparty layer can allow applications to work with eligible entities, creating a reusable identity layer across payments, invoices, accounting and transaction workflows.

  • Customers & Suppliers
  • Vendors & Beneficiaries
  • Business entities
  • Payment recipients
  • Account relationships

Identity Layer

Applications can work with eligible counterparty data to ensure compliant, accurate, and streamlined financial operations across the entire ecosystem.

CARDS API

Make business cards programmable.

The Cards API can connect eligible TEOLOGU Business Card functionality to external applications. This could allow businesses to build card controls directly into their own finance, expense or workforce applications.

  • Card creation & information
  • Card status & Cardholder info
  • Card transactions
  • Spending limits & controls
  • Merchant restrictions
  • Card events & lifecycle management

Example: Employee joins

→ Card issued
→ Spending policy applied
→ Transactions monitored
→ Expense info synchronised
→ Card access adjusted when required
EXPENSES API

Connect spending to the rest of the business.

The Expenses API can expose eligible expense-management workflows to external software. A complete workflow could connect card transactions, receipts, approvals, reimbursements, accounting and reporting.

  • Creating, Retrieving, Updating expenses
  • Receipt information
  • Expense categories
  • Employees and submitters
  • Approval & Reimbursement status
  • Expense policies & events

Complete workflow

→ Card transaction
→ Expense
→ Receipt
→ Approval
→ Reimbursement
→ Accounting → Reporting
INVOICING API

Turn invoices into connected financial objects.

The Invoicing API can provide programmatic access to supported invoice workflows. Invoices can therefore become part of a wider financial workflow rather than isolated documents.

  • Create, Retrieve, Update invoices
  • Invoice lines & Customer information
  • Due dates & Invoice status
  • Payment references
  • Invoice events
  • Payment matching & Reconciliation

Invoice workflow

→ Invoice
→ Payment
→ Transaction
→ Reconciliation
→ Accounting → Analytics
ACCOUNTING API

Connect financial activity to the books.

The Accounting API is designed to connect TEOLOGU financial activity with accounting workflows and external accounting systems. Developers can use these capabilities to build accounting software integrations, finance automation and internal financial systems.

  • Accounts and balances
  • Transaction records & Categorisation
  • Financial entries
  • Invoice & Expense records
  • Reconciliation information
  • Accounting periods, Reporting data, Sync events

Accounting sync

Seamlessly bridge the gap between raw financial transactions and structured ledger entries, ensuring your books are always up to date.

RECONCILIATION API

Match what was expected with what actually happened.

Financial systems often contain multiple representations of the same economic event. The Reconciliation API could provide capabilities for connecting these elements, creating a programmable foundation for identifying matched, unmatched and partially matched financial activity.

Matching flow

↕ Invoice
↕ Payment
Transaction
↕ Accounting record
↕ Settlement
ANALYTICS API

Turn financial data into business information.

The Analytics API can provide structured access to supported financial metrics and reporting data. Developers can use these capabilities to build finance dashboards, management reporting, treasury tools, business intelligence products, financial planning systems and internal reporting applications.

  • Revenue & Expenses
  • Cash movement & Spending
  • Payment & Account activity
  • Transaction volumes
  • Financial trends & Category analysis
  • Business performance

Analytics outputs

Transform raw transactional data into actionable business intelligence, enabling data-driven decision making at every level of the organization.

CASH FLOW API

Give software a view of business liquidity.

A dedicated Cash Flow API can connect eligible account and transaction information into cash-flow workflows. This creates a foundation for software that helps businesses understand not only what happened, but how money is moving through the organisation.

  • Cash inflows & outflows
  • Account movement
  • Historical cash flow
  • Cash-flow categorisation
  • Period comparisons
  • Liquidity information & Forecasting inputs

Liquidity view

Provide real-time visibility into cash positions, enabling proactive financial management and accurate forecasting.

SEARCH & QUERY API

Find financial objects without rebuilding the data layer.

Large businesses need more than individual endpoint requests. A search and query layer can allow applications to locate eligible objects across the TEOLOGU ecosystem. Developers could filter by identifiers, dates, status, currency, category, counterparty and other supported fields.

  • Transactions & Payments
  • Invoices & Expenses
  • Cards & Customers
  • Suppliers & Accounts

Query capabilities

Advanced filtering, pagination, and sorting allow developers to build highly customized financial search experiences tailored to specific business needs.

WEBHOOKS & EVENTS

Your application should know when something changes.

Applications should not need to repeatedly ask whether something happened. TEOLOGU Events can provide notifications for supported changes across the ecosystem. Events can trigger actions in external systems immediately.

Potential events

Payment
created, processing, completed, failed
Transaction
created, updated, reversed
Invoice
created, updated, paid, overdue
Expense
created, submitted, approved, rejected
Card
created, activated, suspended, status changed
Account
updated, status changed
AUTOMATION API

Connect events to business actions.

The real value of an API ecosystem comes from combining capabilities. The API becomes the orchestration layer connecting financial activity with the wider business.

Example 1: Invoice paid

→ Event received → Payment identified
→ Transaction matched → Accounting updated
→ CRM updated → Customer notified
→ Analytics refreshed

Example 2: New employee

→ Employee created in HR system
→ TEOLOGU account relationship created
→ Business card issued → Spending policy applied
→ Accounting relationship established
FILES & DOCUMENTS API

Connect financial documents to financial events.

Financial operations generate documents as well as transactions. A future Documents API could provide supported programmatic access to these records, associating them with the underlying financial object.

  • Invoices & Receipts
  • Statements & Financial documents
  • Expense documentation
  • Payment & Business records

Document linkage

↕ Document
↕ Financial event
↕ Accounting record
NOTIFICATIONS API

Bring financial events into the systems businesses already use.

Applications can use supported notification capabilities to connect financial events to their own communication systems.

  • Email & In-app notifications
  • Internal alerts
  • Business workflow notifications
  • Payment notifications
  • Expense approvals & Invoice reminders
  • Account alerts

Notification channels

Ensure stakeholders are always informed of critical financial events through their preferred communication channels, reducing delays and improving operational efficiency.

IDENTITY & BUSINESS DATA

Build around verified business relationships.

The wider TEOLOGU ecosystem can provide a structured foundation for business relationships where supported. This allows applications to associate financial activity with the organisations and people responsible for it.

  • Businesses & Business users
  • Employees
  • Customers, Suppliers, Beneficiaries
  • Account relationships
  • Roles & Permissions

Identity graph

Link every transaction, invoice, and expense to a verified entity, ensuring compliance, accurate reporting, and streamlined KYC/KYB processes.

TEOLOGU PAY APIs

Payments as infrastructure.

The TEOLOGU API ecosystem can extend beyond Business Accounts into the wider TEOLOGU Pay infrastructure. This creates a pathway for software companies to integrate TEOLOGU payment functionality directly into their products.

  • Payment acceptance & initiation
  • Payment links & status
  • Payment methods & references
  • Recurring payments & Payouts
  • Settlement information
  • Payment events & Merchant reporting

Payment infrastructure

Embed robust, scalable payment processing directly into your platform, offering your users a seamless checkout and payout experience.

TREASURY APIs

Build software around the movement of corporate cash.

For larger businesses, financial infrastructure extends beyond everyday banking. Future Treasury APIs could provide capabilities around these areas. The objective is to allow developers to build treasury functionality on top of the TEOLOGU ecosystem.

  • Cash positions & Multiple accounts
  • Transfers & Liquidity
  • Payment scheduling
  • Cash concentration
  • Treasury reporting
  • Currency positions & Settlement info

Treasury management

Empower enterprise finance teams with programmatic access to advanced cash management, liquidity optimization, and multi-account orchestration.

DATA & INTELLIGENCE APIs

Make financial information usable beyond the account.

TEOLOGU Data & Intelligence can provide a higher-level layer above raw financial records. This separates raw financial data from the systems that transform it into useful information.

  • Financial metrics
  • Categorised transactions
  • Spending patterns
  • Cash-flow information
  • Business performance & Financial trends
  • Reporting datasets
  • Risk-related signals & Intelligence outputs

Intelligence layer

Elevate raw data into strategic insights, enabling predictive analytics, automated categorization, and advanced financial modeling.

TOGA AI APIs

Give applications a financial intelligence layer.

The wider TEOLOGU ecosystem can eventually expose selected AI capabilities through APIs. AI becomes another programmable layer rather than a separate destination.

  • Financial data interpretation
  • Transaction classification
  • Business reporting & Financial summaries
  • Natural-language financial queries
  • Document understanding
  • Finance workflow assistance & Business insights

Example

"Show me the largest changes in operating expenses this quarter."
→ App sends request via TEOLOGU intelligence interface
→ Receives structured financial response
PLATFORM & CONNECTIVITY APIs

Connect TEOLOGU to the software businesses already use.

TEOLOGU APIs can be designed to operate alongside existing technology environments. Potential integrations include:

ERP

Financial operations and enterprise systems.

Accounting

Ledger and bookkeeping platforms.

CRM

Customers, sales and commercial workflows.

Payroll

Employee and compensation workflows.

Commerce

Orders, payments and settlements.

Treasury

Cash and liquidity management.

Expense Management

Employee spending and approvals.

Business Intelligence

Reporting and analytics.

Custom Software

Internal applications and proprietary systems.

APIs become more powerful when they work together.

A developer should not need to choose between individual financial capabilities. They can combine them. The same underlying financial objects can therefore participate in multiple applications and workflows.

Commerce

Order to Analytics

→ Order → Payment → Transaction → Invoice → Accounting → Analytics
Employee spending

Card to Reimbursement

→ Employee → Card → Transaction → Expense → Approval → Reimbursement → Accounting
Supplier payments

Invoice to Reconciliation

→ Supplier → Invoice → Approval → Payment → Transaction → Reconciliation
Finance operations

Account to Reporting

→ Account → Transactions → Cash flow → Analytics → Treasury → Reporting

Everything needed to build, test and operate integrations.

The TEOLOGU developer environment can be structured around several layers.

Developer Portal

Discover APIs, products and integration requirements.

Documentation

Understand endpoints, objects, authentication, errors and implementation requirements.

API Explorer

Test supported requests and inspect responses.

Sandbox

Build integrations against non-production environments.

Applications

Create and manage integrations.

Credentials

Manage application authentication credentials.

Permissions

Define the resources and actions an application can access.

Webhooks

Configure event subscriptions and delivery endpoints.

Logs

Monitor API activity and integration behaviour.

Monitoring

Track errors, performance and system status.

Support

Access technical resources and developer assistance.

AUTHENTICATION

Secure access between applications and financial infrastructure.

TEOLOGU APIs are designed around controlled application access. Authentication and authorisation requirements will depend on the individual API product and regulatory context.

  • OAuth-based authorisation
  • Access tokens
  • Application credentials
  • Permission scopes
  • Role-based access
  • Signed requests
  • Secure webhook verification
  • Environment-specific credentials

Secure by design

Enterprise-grade security protocols ensure that every API call is authenticated, authorized, and encrypted, protecting sensitive financial data at every step.

Access should be granular.

Applications should receive only the access required for their purpose. This creates a permission model where an accounting application does not automatically receive payment-creation capabilities, and a reporting application does not need write access.

Resource
Scope
Accounts
Read
Transactions
Read
Payments
Read / Create
Invoices
Read / Write
Expenses
Read / Write
Cards
Read
Analytics
Read
Webhooks
Subscribe

Designed for modern software environments.

The developer platform can be built around familiar standards and predictable interfaces.

REST

HTTP-based APIs for common integrations.

JSON

Structured responses designed for modern applications.

Webhooks

Event-driven communication.

OAuth

Delegated application access where appropriate.

Idempotency

Protection against duplicate financial operations.

Pagination

Efficient access to large datasets.

Filtering

Query financial objects by supported parameters.

Versioning

Stable API versions for production integrations.

Rate Limits

Predictable usage controls.

Error Handling

Structured errors that applications can interpret.

Use the languages your engineering team already knows.

TEOLOGU can provide SDKs and developer libraries for supported languages and platforms. SDKs can simplify authentication, requests, pagination, webhook verification, error handling and common financial workflows.

JavaScript / TypeScript
.ts / .js
Python
.py
Java
.java
Kotlin
.kt
Go
.go
Ruby
.rb
PHP
.php
.NET
.cs

Build without touching production.

The developer environment should allow teams to test integrations before connecting to eligible live services. Move from development to production only after the appropriate onboarding and approval requirements have been completed.

  • Account creation
  • Transactions
  • Payments
  • Failed payments
  • Invoice payments
  • Expenses
  • Card events
  • Webhook delivery
  • Authentication failures
  • Rate limiting tests
  • Error handling validation

From API to platform.

TEOLOGU's developer ecosystem can ultimately operate across several layers. This creates a developer ecosystem in which TEOLOGU services can become components inside other financial and business applications.

External ApplicationsSoftware built by businesses and developers
↓
TOGA AIAI-powered financial interfaces
↓
TEOLOGU Data & IntelligenceAnalytics and financial intelligence
↓
TEOLOGU InfrastructureFinancial connectivity and infrastructure services
↓
TEOLOGU PayPayment infrastructure
↓
TEOLOGU BusinessInvoices, expenses, cards and accounting
↓
TEOLOGU Money MovementPayments and transfers
↓
TEOLOGU DataTransactions and financial information
↓
TEOLOGU Accounts
Financial accounts and balances

Built for every type of developer.

Businesses

Connect TEOLOGU with your internal technology stack.

Fintechs

Build financial products using supported TEOLOGU capabilities.

SaaS companies

Embed financial functionality directly into your software.

Accounting platforms

Synchronise financial information and accounting workflows.

Marketplaces

Connect payments, sellers, customers and settlements.

Commerce platforms

Connect orders, payments and financial records.

Developers

Build custom applications and integrations.

Enterprises

Create proprietary financial workflows around TEOLOGU infrastructure.

The API is the connection layer.

A business should not have to choose between its banking platform and the rest of its technology environment. The API connects them. One financial environment can therefore become accessible across the applications a business already uses.

TEOLOGU
Accounts
Transactions
Payments
Cards
Expenses
Invoices
Accounting
Data
Intelligence
External Software

Build with TEOLOGU.

Whether you're connecting your own finance stack, embedding payments into a product, automating accounting or building an entirely new financial application, the TEOLOGU developer platform is designed to provide programmable access to the financial ecosystem.

Connect financial data.
Move money.
Automate operations.
Build applications.
Create new financial experiences.

Frequently Asked Questions

The TEOLOGU Business API is a planned developer interface for connecting eligible applications and businesses with supported TEOLOGU financial services and business capabilities.

Depending on the APIs available, developers may build applications involving accounts, transactions, payments, transfers, cards, expenses, invoices, accounting, analytics, automation and other financial services.

API availability and access requirements will depend on the individual product. Some services may be designed specifically for TEOLOGU Business customers, while others may support broader developer use cases.

Supported payment and transfer APIs may provide payment-creation or money-movement capabilities, subject to the relevant service, permissions, eligibility and applicable regulatory requirements.

Webhooks are planned as part of the developer ecosystem and are intended to allow applications to receive real-time notifications for supported events.

The API is designed to support connections between TEOLOGU financial information and external accounting and business systems where supported.

Potentially. The available capabilities, commercial terms, permissions, regulatory requirements and approval process will depend on the specific service and use case.

SDKs and developer libraries are part of the planned developer ecosystem, with availability depending on the relevant programming language and API product.

A sandbox environment is planned for development and testing before eligible production access.

Access is designed around authentication, authorisation and granular permission scopes. Applications should only receive the capabilities required for their intended purpose.

Pricing will depend on the API product, usage, commercial arrangement and developer programme. Any applicable charges will be communicated before activation.

Important Information

The TEOLOGU Business API and wider developer ecosystem are part of TEOLOGU's product and platform development roadmap and may remain subject to development, testing and availability requirements.

API endpoints, functionality, authentication methods, SDKs, pricing, limits, supported services and production availability may change as the platform develops.

Access to financial data, payment functionality and money-movement services may require verification, appropriate permissions, regulatory arrangements, licensed services or regulated partners.

Developers are responsible for securing credentials, protecting customer information, complying with applicable laws and regulations, and using the APIs in accordance with TEOLOGU's applicable terms and technical requirements.

Build on TEOLOGU.

The financial ecosystem, made programmable.