The Match endpoint accepts plaintext (raw) PII as input data.
Calls to the Match endpoint can be made as single transaction calls for an individual record or batch request calls for multiple records.
Making a batch request call involves making a POST call to https://us.identity.api.liveramp.com/v1/batch/match and passing in a JSON array of URL strings constructed in the same way as a single transaction call. You can pass in up to 1000 URL strings in a single batch call.
See The Match Endpoint for more information.