Create consumer using REST APIs not working

I’m a beginner in the confluent Kafka cloud and trying to achieve the functionality of consuming messages using REST APIs in the confluent Kafka cloud.

I am not able to create consumer even though I referenced the Confluent Kafka documentation(https://docs.confluent.io/platform/current/kafka-rest/api.html#consumers).
Here are the possible commands that I tried:

1. Request:
curl -X POST -H "Content-Type: application/vnd.api+json" \
-H "Authorization: Basic XXXXX" \
"https://pkc-ymrq7.us-east-2.aws.confluent.cloud:443/kafka/v3/clusters/YYYY/consumers" \
--data '{ "name": "data", "format": "json", "auto.offset.reset": "earliest" }'
Response:
{"error_code":404,"message":"HTTP 404 Not Found"}%

2. Request
curl -X POST -H "Content-Type: application/vnd.api+json" \
-H "Authorization: Basic XXXXXX" \
-d '{"data":{"attributes":{"name":"my-consumer-group"}}}' \
"https://pkc-ymrq7.us-east-2.aws.confluent.cloud:443/kafka/v3/clusters/lkc-097n86/consumer-groups"
Response:
{"error_code":405,"message":"HTTP 405 Method Not Allowed"}%