Getting Started

What Tessen is, and the honest version of what it isn't.

What Tessen is

Tessen is a platform for building trading agents in plain English — and, more importantly, for finding out the truth about whether they work. You describe a strategy, Tessen assembles it into a precise specification, backtests it against real historical data with real fees and realistic fills, and returns a letter Grade with the evidence behind it. Most strategies fail. Tessen tells you that before you risk money, not after.

Anyone can build a trading bot. Almost no one tells you the truth about it. The Grade is the product.

The workflow

1. Describe.In the Studio, type your strategy idea ("buy BTC when RSI drops below 30, 2% stop"). Tessen drafts a complete AgentSpec — every parameter explicit, every assumption disclosed.
2. Grade. The engine backtests the spec on out-of-sample data, net of fees and slippage, and returns a Grade from A to F with the five gate checks it passed or failed. How the Grade works →
3. Iterate.Change one thing at a time ("widen the stop to 3%") and re-grade. The engine recomputes real numbers — it never flatters you.
4. Paper trade. Deploy the agent against live market data with zero risk — no API keys needed, no real orders. Watch how it behaves in the market that exists now, not the one in the backtest.
5. Go live (rolling out). Agents that pass the gate can be deployed to your own exchange account with a trade-only API key. Tessen never holds your funds. Deployment →

Access

The Studio is in private preview while we validate the platform on our own strategies first — the same discipline we ask of every agent. Join the waitlist for access as we expand.

What Tessen is not

• Not a signal group, and not a promise of profits. Most strategies grade D or F — that is the point.
• Not custodial. We never take deposits, never hold funds, and reject any API key that could withdraw.
• Not a black box. Every Grade shows the gates, the sample size, and the assumptions that produced it.