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POST
/
parties
curl --request POST \ --url https://api.example.com/parties \ --header 'Content-Type: application/json' \ --header 'Idempotency-Key: <idempotency-key>' \ --data ' { "type": "INDIVIDUAL", "originPartyId": "b9de8f06-6332-4879-b6a4-97c4be513a4e", "firstName": "John", "lastName": "Doe", "dateOfBirth": "1990-05-15", "nationality": "LT", "taxIdentifications": [ { "tin": "39001010000", "country": "LT" } ], "documents": [ { "type": "1", "number": "AB1234567" } ], "registrationAddress": { "streetName": "Main Street", "buildingNumber": "42", "postCode": "01234", "townName": "Vilnius", "country": "LT" } } '
{
  "correlationId": "550e8400-e29b-41d4-a716-446655440000"
}

Headers

​
Idempotency-Key
string
required

Client-provided idempotency key. UUID v4 suggested, max 255 characters.

Maximum string length: 255
Pattern: \S

Body

application/json

Party creation request

Request to create a party (INDIVIDUAL or ORGANISATION)

​
type
enum<string>
required

Party type

Available options:
INDIVIDUAL,
ORGANISATION
Example:

"INDIVIDUAL"

​
originPartyId
string
required

External origin party identifier

Example:

"b9de8f06-6332-4879-b6a4-97c4be513a4e"

​
documents
object[]
required

Required for INDIVIDUAL registered outside Lithuania

​
uboDetails
object[]
required

Ultimate beneficial owners. Required for ORGANISATION registered outside Lithuania

​
representatives
object[]
required

Legal representatives. Required for ORGANISATION registered outside Lithuania

​
firstName
string | null

Required for INDIVIDUAL

Example:

"John"

​
lastName
string | null

Required for INDIVIDUAL

Example:

"Doe"

​
dateOfBirth
string<date> | null

Required for INDIVIDUAL outside Lithuania

Example:

"1990-01-15"

​
nationality
string | null

Required for INDIVIDUAL (ISO 3166-1 alpha-2)

Example:

"LT"

​
taxIdentifications
object[] | null

Required for INDIVIDUAL

​
registrationNumber
string | null

Required for ORGANISATION

Example:

"123456789"

​
legalName
string | null

Required for ORGANISATION

Example:

"Acme Corporation"

​
country
string | null

Required for ORGANISATION (ISO 3166-1 alpha-2)

Example:

"LT"

​
registrationAddress
object

Registration address. Required for ORGANISATION and INDIVIDUAL registered outside Lithuania

Response

Party creation request accepted

Response for accepted asynchronous requests

​
correlationId
string
required

Correlation identifier for tracking the request through events

Example:

"550e8400-e29b-41d4-a716-446655440000"

Last modified on February 10, 2026