You can query the current participants in a room from within an agent entrypoint function using either the job context API or by iterating over the

remote_participants

on the room object. • API Method: Use

ctx.api.room.list_participants()

with the room name to retrieve a full participant list and detailed info. • Room Object: Iterate through

ctx.room.remote_participants.values()

for currently connected remote participants. The information available per participant includes at least: •

identity

•

name

•

state

•

is_publisher

•

joined_at

•

metadata

•

sid

For SIP participants, additional attributes such as

sip.callID

,

sip.callStatus

,

sip.phoneNumber

, and more are available as part of their attributes dictionary. You can also access any custom user attributes and listen for changes to those attributes using event handlers. See the code examples for both API and direct room access methods in the agent context for implementation details and the list of retrievable fields. Reference: Sourced from official documentation and code samples. Sources: Inside a session | LiveKit Docs | mcp/server.py