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POST
/
identity
/
entities
Create Customer
curl --request POST \
  --url https://api.sandbox.sardine.ai/v1/identity/entities \
  --header 'Authorization: Basic <encoded-value>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "phoneNumber": "+14155551234"
}
'
{
  "customerId": "3f8c1a22-1234-4abc-9def-000000000001",
  "createdAt": "2026-05-01T10:00:00Z"
}

Documentation Index

Fetch the complete documentation index at: https://docs.payments.sardine.ai/llms.txt

Use this file to discover all available pages before exploring further.

Authorizations

​
Authorization
string
header
required

HTTP Basic Auth. Use your clientId as the username and clientSecret as the password.

Body

application/json
​
phoneNumber
string
required

E.164 formatted phone number

Example:

"+14155551234"

Response

Customer created successfully

​
customerId
string

Sardine-assigned customer UUID

Example:

"3f8c1a22-1234-4abc-9def-000000000001"

​
createdAt
string<date-time>
Example:

"2026-05-01T10:00:00Z"