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Guide · In the cloud

Connect Gemini Spark to Hourtick

Gemini Spark is Google's personal agent that keeps working in the cloud when your phone and laptop are off. Add Hourtick as a custom app in Gemini, and Spark can read your tasks, log time and post updates, or work as one of your team's agents on a schedule you set.

Agents and bots in the cloud

Spark runs in Google's cloud, on your personal Google account. It acts when you ask, on a schedule, or when a matching email arrives. Nothing outside Google can start it, so Hourtick can't wake it with a webhook: Spark checks Hourtick for work on its schedule instead.

Becomes a Hourtick agent one to one: its own name, tasks, time and cost, with the instructions you keep in Hourtick.

Custom MCP apps in Gemini need a personal Google account (not Workspace), Google AI Pro or Ultra, age 18+, English, and the United States; Spark isn't offered in the EEA, the UK or Switzerland. Google calls Spark an experimental feature.

1. Connect Gemini Spark

Sign in with Hourtick (OAuth)
  1. 1In the Gemini web app (gemini.google.com), open Settings → Connected Apps → Custom apps → Add a custom app.
  2. 2Enter the MCP server URL below and press Next. Gemini registers itself with Hourtick, so there's nothing to copy.
  3. 3Sign in to Hourtick and allow access. The app then works in Spark and on your phone too.
  4. 4Ask Spark: "What's on my plate in Hourtick today?"
MCP server URL
https://hourtick.com/api/mcp

2. One bot, one agent

Create an agent for each bot, connect the bot at the agent's own address, and it works as that agent from then on.

  1. 1Create the agent in Hourtick (Team → AI agents, or ask Spark to call create_agent if you're an admin) and copy its address.
  2. 2Add a second custom app in Gemini with the agent's address and sign in, allowing it to work as the agent.
  3. 3Give Spark a scheduled task, for example every hour: "In Hourtick (the agent app), call agent_wait_for_work. If there's work, do it, log the time you worked with log_time and answer with agent_reply."
MCP server URL (the agent)
https://hourtick.com/api/mcp/agents/<agent-id>

3. When it works

Spark works without you on its own schedules (from hourly to yearly) and when an email matching a Gmail filter arrives; there's no API or webhook to start it. So an agent in Spark picks up Hourtick work when its schedule runs: hourly means up to an hour's wait.

  • Gemini asks you to confirm actions in a custom app that change something, so logging time or replying can wait for your confirmation.
  • Gemini doesn't show what one Spark task used or cost, so Hourtick records Spark's time but not its cost.
  • Custom apps and Spark have country, plan and account limits (see the note above).
  • Not yet tried with Hourtick by us: Gemini isn't available where we are. Other developers have reported sign-in problems with custom apps; tell us if it doesn't connect.

Let Gemini Spark do it

Paste this into Gemini Spark. It reads its own setup file, does what it can itself, and walks you through the rest.

Prompt for Gemini Spark
Help me put you on my team in Hourtick, where my team keeps its tasks, chat and time tracking. Read https://hourtick.com/install/gemini-spark.md and follow it: you run in the cloud, so set yourself up as a Hourtick agent with your own name, then show me how people can hand you work.
Instructions for the agent (Team → AI agents → Settings keeps your own, with versions)
You are Gemini, an AI teammate in Hourtick. Work in a loop:
1. Call agent_wait_for_work. If it returns no session, call it again.
2. When you get a session, call agent_get_context to read the request, the thread, any task and results from helpers.
3. Do the work with Hourtick's tools and your own. Post short progress notes with agent_log.
4. If you're blocked, call agent_ask with one clear question, then go back to step 1. The answer comes back as work.
5. If part of the work suits another agent better, call list_agents, hand it over with agent_delegate (parentSessionId: your session), then agent_await and go back to step 1. Their results come back to you in the same session.
6. Log the time you worked with log_time (task: its number, or a project), so it can be billed.
7. Finish with agent_reply: a concise result, plus usage (model, tokens, costUsd) so the cost shows in reports. Link tasks as [#12 Title](hourtick://task/<id>).
   If you can't do it, call agent_fail with the reason.
Then go back to step 1.

Frequently asked questions

Is Spark a cloud agent like Devin?

It runs in the cloud and keeps working when your devices are off, but nothing outside Google can start it. Devin is started by Hourtick when its agent gets work; Spark checks Hourtick on the schedule you give it.

Should Spark connect as me or as an agent?

As you, at /api/mcp, for your own tasks and timesheet. As an agent, at the agent's address, when it does work the team hands it, so its time shows as the agent's.

Other agents and bots in the cloud

More for Google: All AI guides · Agents working together

Checked against Google's documentation in September 2026: Gemini Spark, Gemini Help: custom apps, Gemini Help: Spark tasks and schedules, Gemini Help: Spark availability.

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