Call the Envelope API with the endpoint below. You can also check out our handy API reference page to help you generate the call.

https://api.rlcdn.com/api/identity/envelope?pid=[placement id]&it=[identifier type]&iv=[hashed identifier]&ct=[consent type]&cv=[consent string]

Parameter	Type	Value
`pid`	int32	Your Placement ID.
`it`	int32	The identifier type of the call: "4" corresponds to hashed emails. "11" corresponds to phone number hashes. "15" corresponds to custom IDs. Learn more about Custom IDs Support.
`iv`	string	The hashed version of the raw email or phone number. When using custom IDs, you must pass the following values within the `iv` parameter: `ANA_ID:CUSTOM_ID` `ANA_ID` represents the Account ID (provided by LiveRamp) whereas `CUSTOM_ID` represents the custom identifier.
`ct`	int32	The type of consent passed to the API. "4" represents a TCF v2 consent string for EU/EEA traffic. "3" represents a CCPA consent string for U.S. traffic (optional).
`cv`	string	The consent string. See Step 2: Provide a Valid Consent String for examples.

Header	Type	Value
`origin`	string	An origin domain that was included in the privacy review for the Placement ID you're using.

ATS Envelope API Responses

Provided you have submitted a well-formed query to the ATS Envelope API, two types of "successful" responses are possible.

For opted-in users
You will receive a 200 response for a JSON object with a simple key/value containing the envelope:

{"envelope":"Ao42jiiUNWfvloyXY887EBn801otRTWYnklvjCtw9REF_TMoMWLkeUvzVmQVZG1q"}

For opted-out users (no positive consent signal)
You will receive a 204 response with no content.

See the complete list of status codes below:

Status Code	Response
200	Good response
204	No Consent: Opted out user/browser.
400	Bad Request: Bad Config ID (calling non-existent PID), Unexpected (missing) parameter.
401	Unauthorized: Origin not allowed (domain was not approved for this Placement ID ).
403	Forbidden: Endpoint not configured for service.
451	Unavailable for Legal Reasons: Disallowed country and/or invalid consent string.