PubNub MCP Server

# Presence API – Rust SDK (condensed) Presence lets you query real-time occupancy information and manage per-user state. Feature flag: **fullpresence** (must be enabled in the Admin Portal). --- ## here_now() Real-time snapshot of channel occupancy. Response is cached for 3 s. ```rust pubnub .here_now() .channels(Vec<String>) // required – channels to query .channel_groups(Vec<String>) // optional – channel groups to query .include_state(bool) // default false – include per-user state .include_user_ids(bool) // default true – include UUID list .execute() ``` Returns `HereNowResult`: * `total_channels: u32` * `total_occupancy: u32` * `channels: Vec<HereNowChannel>` `HereNowChannel` * `name: String` * `occupancy: u32` * `occupants: Vec<HereNowUser>` `HereNowUser` * `user_id: String` * `state: serde_json::Value` (or `Vec<u8>` without `serde`) --- ## where_now() List channels to which a given user ID is currently subscribed. ```rust pubnub .where_now() .user_id(String) // defaults to the UUID in PubNub config .execute() ``` Returns `WhereNowResult`: * `channels: Vec<String>` --- ## Presence state (set / get) Key-value metadata attached to a user on specific channels or channel groups. State payload must be a JSON object. ### set_presence_state() ```rust pubnub .set_presence_state(T: Serialize) // required state JSON .channels(Vec<String>) // optional channels .channel_groups(Vec<String>) // optional channel groups .user_id(String) // defaults to configured UUID .execute() ``` Returns `SetStateResult`: * `channel: String` * `state: serde_json::Value` (or `Vec<u8>`) ### get_presence_state() ```rust pubnub .get_presence_state() .channels(Vec<String>) // optional channels .channel_groups(Vec<String>) // optional channel groups .user_id(String) // defaults to configured UUID .execute() ``` Returns `GetStateResult`: * `state: Vec<GetStateInfo>` `GetStateInfo` * `channel_name: String` * `state: serde_json::Value` (or `Vec<u8>`) --- Last updated: **Jul 15 2025**