KintsugiKintsugi
API reference

API reference

Every Kintsugi Customer API endpoint, generated directly from our OpenAPI spec so the reference always matches production. Building on Kintsugi as a platform? The partner-only endpoints live in the Partner API reference.

v1.0.051 endpointsUpdated from production

Address Validation

POSTSearch
/v1/address_validation/search
POSTSuggestions
/v1/address_validation/suggestions

Customer Tax Registration

POSTUpsert customer tax registration
/v1/customers/{customer_id}/tax-registrations

Customers

GETGet customers
/v1/customers
POSTCreate customer
/v1/customers
GETGet customer by external id
/v1/customers/external/{external_id}
GETGet customer by id
/v1/customers/{customer_id}
PUTUpdate customer
/v1/customers/{customer_id}
GETGet transactions by customer id
/v1/customers/{customer_id}/transactions
POSTCreate transaction by customer id
/v1/customers/{customer_id}/transactions

Exemptions

GETGet exemptions
/v1/exemptions
POSTCreate exemption
/v1/exemptions
GETGet exemption by id
/v1/exemptions/{exemption_id}
GETGet attachments for exemption
/v1/exemptions/{exemption_id}/attachments
POSTUpload exemption certificate
/v1/exemptions/{exemption_id}/attachments

Filings

GETGet filings
/v1/filings
GETGet filings by registration id
/v1/filings/registration/{registration_id}
GETGet filing by id
/v1/filings/{filing_id}
PUTApprove filing
/v1/filings/{filing_id}/approve

Nexus

GETGet nexus for org
/v1/nexus
GETGet physical nexus
/v1/nexus/physical_nexus
POSTCreate physical nexus
/v1/nexus/physical_nexus
GETGet physical nexus categories
/v1/nexus/physical_nexus/categories
PUTUpdate physical nexus
/v1/nexus/physical_nexus/{physical_nexus_id}
DELETEDelete physical nexus
/v1/nexus/physical_nexus/{physical_nexus_id}
GETGet nexus details for id
/v1/nexus/{nexus_id}

Products

GETGet products
/v1/products
POSTCreate product
/v1/products
GETGet product categories
/v1/products/categories
GETGet product by id
/v1/products/{product_id}
PUTUpdate product
/v1/products/{product_id}

Registrations

GETGet registrations
/v1/registrations
POSTCreate registration
/v1/registrations
GETGet jurisdiction specific fields
/v1/registrations/jurisdiction-specific-fields
GETList registration jurisdictions
/v1/registrations/jurisdictions
GETGet registration by id
/v1/registrations/{registration_id}
PUTUpdate registration
/v1/registrations/{registration_id}
POSTUpload registration attachment
/v1/registrations/{registration_id}/attachments
POSTDeregister registration
/v1/registrations/{registration_id}/deregister
GETGet oss countries for registration
/v1/registrations/{registration_id}/oss-countries

Tax Estimation

POSTEstimate tax
/v1/tax/estimate

Transactions

GETGet transactions
/v1/transactions
POSTCreate transaction
/v1/transactions
POSTArchive transaction by id
/v1/transactions/archive
GETGet transaction by external id
/v1/transactions/external/{external_id}
GETGet transactions by filing id
/v1/transactions/filings/{filing_id}
POSTCreate credit note by transaction id
/v1/transactions/{original_transaction_id}/credit_notes
PUTUpdate credit note by transaction id
/v1/transactions/{original_transaction_id}/credit_notes/{credit_note_id}
GETGet transaction by id
/v1/transactions/{transaction_id}
PUTUpdate transaction
/v1/transactions/{transaction_id}
POSTSet transaction tax only
/v1/transactions/{transaction_id}/tax_only