PII Masker — Data Migration Tools

Overview

Replaces PII with fake values that keep the same shape so masked exports still load and join. The mapping is deterministic given a seed.

Features

Shape-valid fakes.
Deterministic with seed.
Selectable entity types.
CSV, JSON, text.

Use cases

Preparing a test dataset.
Sharing a sample without exposing customers.

API reference

POST /api/v1/tools/pii-mask

Replace PII with shape-valid, deterministic fake values so masked exports still join and load. The real→fake mapping is returned separately.

Returns: The masked output, the real→fake entity mapping, and a count of masked values per entity.

Parameters

Name	Type	Required	Default	Description
`input`	string	Yes	—	The data to mask.
`format`	string (csv\|json\|text)	No	`"text"`	How to interpret the input.
`entities`	string[]	No	—	Restrict masking to these entity types. Valid: EMAIL, SSN, CREDIT_CARD, PHONE, IPV4, IBAN, URL, PERSON_NAME, PASSPORT, DOB. Defaults to EMAIL, SSN, CREDIT_CARD, PHONE, IPV4, IBAN, URL, PERSON_NAME.
`seed`	string	No	—	Deterministic seed for the pseudonymizer. Same seed + same input → same masked output. Defaults to "dmt".

Example

curl -X POST https://data-migration-tools.com/api/v1/tools/pii-mask \
  -H "Content-Type: application/json" \
  -d '{"input":"email,phone\nada@example.com,+15551234567","format":"csv","seed":"run-42"}'

See the full API reference for all examples and error codes.