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API Reference

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Getting started

OpenAPI Specification (OAS)

Customer API

preview
- Anonymize customerpost
Customers
Sellers
Tax Classifications
Configurations

Billing API

Invoices
Customers
Billing Groups
Orders
Plans and Options
Usages
Contracts
Billable Items
- Query billable itemsget
- Query billable itemsget
Price Adaptations
Contracts (deprecated)
- Create credit billable itempost
preview

Usage API

Rated usages
Rated usage aggregations
Billing Group
- Get billing group by identget
- Update billing groupput

Data Access API

Invoices
- Query invoicesget
- Retrieve invoiceget

Invoice API

Documents
Document Labels
Aggregation Configurations
Document Number Configurations
Dunning Configurations
- Retrieve dunning configurationget
- Create dunning configurationpost
Dunning Status Aggregations
- Retrieve dunning status aggregationget
- Lists dunning status aggregation documentsget
Operating Site Configurations
OPOS Cases
OPOS Case Clearing Runs
SAF-T Configurations
Tenant Configurations
- Get polish credit memo flagget
- Set polish credit memo flagpost

Document Output API

Translations
Translation Configurations
- Get All Translationsget
- Get Configured Localesget
Files

Tax API

Tax Calculation
- Calculate tax for a documentpost
Tax Rules Configuration
Tax Provider Configuration
Tax Service Tenant Configuration
- Get the tax service configuration for a tenant.get
- Create or update the tax service configuration for a tenant.post
Tax Service Billing Group Configuration
- Get the tax service configuration for a billing group.get
- Create or update the tax service configuration for a billing group.post

Payment API

Customer Payment Accounts
Merchant Payment Accounts
Merchant Payment Gateways
Payment Providers
Payment Categories
Payment Transactions
Payment Categorization Rules
Payment Intents
Payment Intent Tasks
Settlements

Payment Assignment API

Assignment Configuration
Assignments

Bookkeeping API

preview
Booking Accounts
Booking Entries
- Query booking entriesget
Clearing
Tenants
- Get gain loss configurationget
- Update subledger configurationput

Booking Engine API

preview

Currency Converter API

Currency Converter
- Get exchange ratesget
- Post self provided exchange ratespost

Report API

Report Files

Notification API

Notification Configuration
Notifications

Basware Adapter API

Basware country configuration
Basware forward route configuration
Basware credential configuration
Basware forward route resolver
- Resolve Routeget
Basware workflows
Basware enums
- Get used enumerationsget

Billing Preparation API

Billing Group Configuration
- Get billing preparation billing group configget
- Update billing preparation billing group configpost

Electronic Invoice API

Avalara ELR Mandate Mappings
Electronic Invoicing Workflows

Audit Trail API

Audit Trail Entity Name
- Retrieve entity namesget
Audit Trail Entry
- Query audit trail entriesget
- Retrieve audit trail entryget

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Get exchange rates

get

https://api.isx-stage-westeurope.instellix.io/v2/exchange-rates

Get the exchange rates for a given date.

Language

Credentials

OAuth2

Client