ListTopics

ListTopics returns the active catalog for your account.

Request

protobuf

message ListTopicsRequest {}

Response

protobuf

message ListTopicsResponse {
  repeated TopicInfo topics = 1;
}

message TopicInfo {
  string name = 1;
  string description = 2;
  string proto_message_type = 3;
}

grpcurl

bash

grpcurl \
  -H "x-api-key: YOUR_API_KEY" \
  -import-path . \
  -proto program-streams.proto \
  -d '{}' \
  events.sol.cubestech.online:443:443 \
  nln.stream.v1.StreamService/ListTopics

Filter in Python

python

response = client.ListTopics(
    pb.ListTopicsRequest(),
    metadata=[("x-api-key", "YOUR_API_KEY")],
)

pump_topics = [
    topic
    for topic in response.topics
    if topic.name.startswith("solana.pump_fun.")
]

for topic in pump_topics:
    print(topic.name, topic.proto_message_type)

Cache policy

Refresh at startup.
Refresh after NOT_FOUND or PERMISSION_DENIED.
Store topic names as configuration, not source constants.
Compare catalog changes before deployment.

Browse the same inventory in the Program Streams catalog.