--- title: "Connect PubNub to Hong Kong Obervatory - APIANT.ai" description: "When \"New Message on Channel\" fires in PubNub, your agent runs \"Convert Gregorian date to lunar date\" in Hong Kong Obervatory." canonical: "https://apiant.ai/connect/pubnub-to-hong-kong-obervatory" --- # Connect PubNub to Hong Kong Obervatory When **New Message on Channel** fires in [PubNub](https://apiant.ai/connections/pubnub), your agent runs **Convert Gregorian date to lunar date** in [Hong Kong Obervatory](https://apiant.ai/connections/hong-kong-obervatory). Describe the whole flow and it is built, tested on every scenario and kept running. PubNub **2** triggers PubNub **9** actions Hong Kong Obervatory **13** actions What the catalog holds today. Ask for anything missing and your agent reads the API documentation and adds it. ## What do you want PubNub and Hong Kong Obervatory to do together? Give your AI client this address. `https://mcp.apiant.ai` One connection does both: ask your client to act in an app once, or have it build an automation that keeps running. Any client that takes a remote MCP server. Nothing to install. Create your free account, then sign in once in your browser. ### Set it up in your client ### Claude Code Run this in the directory you want to work in. `claude mcp add --transport http -s project apiant-ai https://mcp.apiant.ai` Start Claude Code there, approve the server, and sign in in the browser page it opens. [Claude Code guide (opens in a new tab)](https://apiant.ai/docs/mcp/claude-code) ### Claude, web and desktop Open Customize, then Connectors, then Add custom connector, and paste the address. On Team and Enterprise an owner adds it first. [Setup guide (opens in a new tab)](https://apiant.ai/docs/mcp) ### Cursor Add the address to your MCP configuration as a server URL. Cursor signs you in in your browser. [Setup guide (opens in a new tab)](https://apiant.ai/docs/mcp) ### Zed Open Settings, then AI, then MCP Servers, then Add Server, then Add Remote Server. [Setup guide (opens in a new tab)](https://apiant.ai/docs/mcp) ### Codex and the ChatGPT desktop app Open Settings, then MCP servers, then Add server, and choose Streamable HTTP. From the terminal, Codex takes the address with its own add command and then signs you in. [Setup guide (opens in a new tab)](https://apiant.ai/docs/mcp) ### Any other MCP client Paste the address where the client asks for a remote MCP server URL, and name the server apiant-ai where it lets you. APIANT's skills reach the client over the same connection. [Setup guide (opens in a new tab)](https://apiant.ai/docs/mcp) Example flows ## What PubNub can start in Hong Kong Obervatory - When **New Message on Channel** in PubNub then **Convert Gregorian date to lunar date** in Hong Kong Obervatory - When **Presence Change on Channel** in PubNub then **Get 9-day weather forecast** in Hong Kong Obervatory Starting points drawn from the triggers and actions in the catalog today. Describe the flow you need, at any depth, and your agent builds it and tests every scenario before it ships. Everything your agent can do with PubNub and Hong Kong Obervatory ## Triggers and actions 2 triggers · 22 actions - Trigger **New Message on Channel** Triggers when a new message is published to a PubNub channel. - Trigger **Presence Change on Channel** Fires when a user appears on a PubNub channel or their presence state changes, by polling the channel's Here Now occupant list. - Action **Get channel metadata** Get App Context metadata for a channel. - Action **Get Channel Presence** Gets current occupancy and user list for a PubNub channel. - Action **Get user metadata** Get App Context metadata for a user. - Action **List channels** List all channels with App Context metadata. - Action **List users** List all users with App Context metadata. - Action **Publish Message** Publishes a message to a PubNub channel. - Action **Send signal** Send a lightweight signal to a channel. - Action **Update channel metadata** Set/update App Context metadata for a channel. - Action **Update user metadata** Set/update App Context metadata for a user. - Action **Convert Gregorian date to lunar date** Convert a Gregorian calendar date to its lunar calendar year and date. - Action **Get 9-day weather forecast** Get the 9-day weather forecast including daily temperature, humidity, wind and rain probability. - Action **Get current weather report** Get the current weather report: temperature, humidity, rainfall, UV index, lightning and warning messages. - Action **Get daily maximum temperature** Get daily maximum air temperature records for a station and period. - Action **Get daily mean temperature** Get daily mean air temperature records for a station and period. - Action **Get daily minimum temperature** Get daily minimum air temperature records for a station and period. - Action **Get high and low tide times** Get the times and heights of astronomical high and low tides for a station. - Action **Get hourly heights of astronomical tides** Get hourly predicted heights of astronomical tides for a station and date. - Action **Get latest 10-minute mean visibility** Get the latest 10-minute mean visibility reading across monitoring stations. - Action **Get lightning count** Get the cloud-to-ground and cloud-to-cloud lightning count for a date. - Action **Get moonrise and moonset times** Get times of moonrise, moon transit and moonset for a given date range. - Action **Get sunrise and sunset times** Get times of sunrise, sun transit and sunset for a given date range. - Action **Get weather and radiation level report** Get the daily weather and ambient gamma radiation level report. ## Each app on its own - [ **PubNub** PubNub is a real-time communication platform that powers chat, live notifications, IoT data streaming, and...](https://apiant.ai/connections/pubnub) - [ **Hong Kong Obervatory** Hong Kong Observatory is Hong Kong's official meteorological and geophysical service, publishing its data...](https://apiant.ai/connections/hong-kong-obervatory) Reviews ## What our customers say ## More from PubNub - [ **PubNub to Salesforce** Salesforce is a leading enterprise customer relationship management (CRM) platform.](https://apiant.ai/connect/pubnub-to-salesforce) - [ **PubNub to Slack** Slack is a messaging platform for teams. Post messages, manage channels, users, reminders, and react to...](https://apiant.ai/connect/pubnub-to-slack) - [ **PubNub to Stripe** Stripe is a payment processing platform for online businesses.](https://apiant.ai/connect/pubnub-to-stripe) - [ **PubNub to Shopify** Shopify is a commerce platform for online stores and retail point-of-sale.](https://apiant.ai/connect/pubnub-to-shopify) - [ **PubNub to QuickBooks Online** QuickBooks Online accounting — manage customers, invoices, bills, payments, vendors, expenses, and more via...](https://apiant.ai/connect/pubnub-to-quickbooks-online) - [ **PubNub to Trello** Trello is a visual collaboration tool that organizes projects into boards, lists, and cards.](https://apiant.ai/connect/pubnub-to-trello) ## More into Hong Kong Obervatory - [ **HubSpot to Hong Kong Obervatory** HubSpot is your all-in-one stop for all of your marketing software needs.](https://apiant.ai/connect/hubspot-to-hong-kong-obervatory) - [ **Salesforce to Hong Kong Obervatory** Salesforce is a leading enterprise customer relationship management (CRM) platform.](https://apiant.ai/connect/salesforce-to-hong-kong-obervatory) - [ **Slack to Hong Kong Obervatory** Slack is a messaging platform for teams. Post messages, manage channels, users, reminders, and react to...](https://apiant.ai/connect/slack-to-hong-kong-obervatory) - [ **Google Sheets to Hong Kong Obervatory** Google Sheets](https://apiant.ai/connect/google-sheets-to-hong-kong-obervatory) - [ **Gmail to Hong Kong Obervatory** Gmail is Google’s email service, featuring spam protection, search functions, and seamless integration with...](https://apiant.ai/connect/gmail-to-hong-kong-obervatory) - [ **Google Calendar to Hong Kong Obervatory** Google Calendar is a time management tool providing scheduling features, event reminders, and integration...](https://apiant.ai/connect/google-calendar-to-hong-kong-obervatory) Questions ## PubNub and Hong Kong Obervatory, answered ### ### What can start an automation from PubNub? Any of PubNub's 2 triggers in the catalog, including New Message on Channel and Presence Change on Channel. Describe the moment in plain language and your agent picks the right one. ### ### What can your agent do in Hong Kong Obervatory when something happens in PubNub? Any of Hong Kong Obervatory's 13 actions, including Convert Gregorian date to lunar date, Get 9-day weather forecast, Get current weather report and Get daily maximum temperature. Your agent maps the data both ways and tests every scenario before it ships. ### ### Can it also run from Hong Kong Obervatory to PubNub? Hong Kong Obervatory has no triggers in the catalog today, so automations start in PubNub. If you need the other direction, ask: your agent reads Hong Kong Obervatory's API documentation and adds it. ### ### Do I have to build a connector for PubNub or Hong Kong Obervatory? No. Both are in the catalog with their triggers and actions. You describe the automation; your agent builds it, tests every scenario and keeps it running. ### ### Can my AI client use PubNub and Hong Kong Obervatory without building an automation? Yes. With your AI client connected to APIANT, ask it to do something in either app once and it runs that action on the spot. Ask for an automation and your agent builds it, tests every scenario and keeps it running. One connection covers both. ### ### What happens when something fails? Your agent works that out for you. It plans the failure paths along with the happy path, then tests every scenario before it ships. ### ### Is there a free plan? Yes. Every plan includes the agent, including free, and building from your own AI client spends no assistant credits.