DeepSeek Harness, the open-source AI agent app from DeepSeek, now has 1.54 million daily active users. That’s a big jump in under three months. The company also says a plugin marketplace is on the way.
Here are the key facts before we get into what they mean for you.
- Daily users: 1.54 million as of November 4, up from about 271,000 at the end of September.
- Launch: version 0.1 shipped on August 13.
- Scale: roughly 92 trillion tokens processed per day.
- Plugins: about 35,000, and around 60% of active users have made or installed one.
- Marketplace: planned, but not launched yet.
Keep in mind that all of these numbers come from DeepSeek itself and haven’t been independently verified.
What DeepSeek Harness actually is
Think of it as an AI agent app that you extend with add-ons. The core features are built in, and anything specialized comes from third-party plugins. DeepSeek describes the goal as becoming “the operating system in the Agent era,” according to 36Kr.
It has web and desktop versions, including a Windows client. Seeking Alpha reports that DeepSeek positions it as an alternative to agent products from OpenAI and Anthropic. We couldn’t find a confirmed license or pricing, so check the project page before you build on it.
The growth numbers, side by side
The user count is the headline, but the plugin figures say more about how people actually use it. Here’s what DeepSeek reported.
| Metric | Reported figure | As of |
|---|---|---|
| Daily active users | 1.54 million | November 4 |
| Daily users, earlier | About 271,000 | End of September |
| Tokens processed per day | About 92 trillion | November 4 |
| Third-party plugins | About 35,000 | November 4 |
| Users with a plugin | About 60% | November 4 |
Going from about 271,000 to 1.54 million is roughly a 5.7x increase in about five weeks. Few apps grow that fast, and it’s a good reason to take the project seriously. It’s also a reason to be careful, since early numbers can swing quickly in either direction.
The usage figure is striking too. Spread across 1.54 million users, 92 trillion daily tokens works out to about 60 million tokens per active user. That’s heavy use, which points to agents running long tasks rather than quick chat questions.
The user count counts people using the official API, so it won’t include anyone who runs the code in some other way. That’s worth remembering when you compare it with other agent apps.
Why the plugin numbers matter more than the user count
Sixty percent of active users touching a plugin suggests people aren’t just chatting with a bot. They’re customizing it to do jobs. That’s the same pattern we’ve seen with other agent tooling, like the packaging approach in our look at Microsoft’s agent package manager.
It also raises a fair question. If 35,000 plugins exist and there’s no official store yet, who checks them? That’s a safety gap, and it’s my read rather than a DeepSeek statement.
What the planned plugin marketplace will add
DeepSeek says it wants an official marketplace where developers upload plugins and users find them easily. According to 36Kr, the planned features include:
- Plugin review and quality ratings.
- Version compatibility checks.
- Permission management and security prompts.
Permission controls are the part to watch. An agent that can act on your files or accounts needs clear limits, and a plugin shouldn’t get more access than it needs.
DeepSeek is also preparing a support program for plugin authors. Seeking Alpha says it may include AI usage credits, technical help, and promotion, though details aren’t final. If you’re weighing open-weight alternatives for your own projects, our piece on Baidu’s open ERNIE model covers another option.
How to try it without getting burned
Agent apps can read files, call tools, and run commands, so the usual app-store habits aren’t enough. A few simple rules go a long way.
Start in a clean folder or a spare machine, with nothing sensitive in it. Install one plugin at a time, so you know what changed if something odd happens. And never paste API keys or passwords into an agent session you don’t fully trust.
Check who wrote a plugin before you install it. A plugin with a known author, recent updates, and real users is a safer bet than a brand-new upload with big promises. Until DeepSeek’s review system exists, that checking falls to you.
Developers have a different decision. A fast-growing plugin ecosystem can bring users, and the planned support program may reward early authors. But platform plans change, so don’t build a business on an unlaunched marketplace.
Frequently Asked Questions
Is DeepSeek Harness free?
DeepSeek hasn’t published pricing in the sources we checked. Look at the official project page for current terms before you rely on it.
Is DeepSeek Harness open source?
Seeking Alpha describes it as an open-source agent app. We couldn’t confirm which license it uses, so read the repository before using it commercially.
Is the 1.54 million user figure reliable?
It’s a company-reported number, counted by users of the official API. Treat it as a strong signal of growth, not an audited total.
Is the DeepSeek plugin marketplace live?
No. DeepSeek says it plans to build one, with review, ratings, and permission controls, but it hasn’t launched.
My take: try DeepSeek Harness on a throwaway project first, and stick to plugins from authors you can verify. The growth is real enough to pay attention to, but with no store and no review process yet, you’re the one doing the vetting. Wait for the marketplace before trusting it with anything sensitive.
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