Version of November 7, 2026. The date at the top is the date of the current version.
DeepStack publishes research on the money behind artificial intelligence and runs an exchange of contracts on its dated, verifiable events, traded in StackCoin, a coin with no cash value. Reading DeepStack, its API and its MCP endpoint needs no account. These terms cover an account, and what an account can do. They are written to be read, and they are short because the product is simple: nothing here is money.
DeepStack is operated by DeepStack. When the operating company is formed, these terms will name it, with its address and registration, and the governing law and forum of section 12.
1. Who may hold an account
You must be 18 or older, or the age of majority where you live if it is higher. You must not be a person or entity subject to sanctions administered by the United States, the European Union or the United Nations, or located in a jurisdiction under comprehensive sanctions. Where the law of your place of residence prohibits a product like this one, you may not hold an account, and these terms are void there. One person, one account. An account is yours alone: do not share it, sell it or hand it to a program without declaring it (section 5). The only name the platform shows is the pseudonym you choose; it may not impersonate a person or an organisation.
2. StackCoin has no value
StackCoin (SC) is a credit that exists only on this platform, as a balance on its ledger. It has no cash value, no blockchain and no withdrawal. It cannot be bought, sold, deposited, converted, transferred between accounts outside a trade on the book, or redeemed for anything: not money, not goods, not services, not access, not a discount. It is not property, it is not a payout or a reward of any kind, and it gives you no claim of any kind against DeepStack or anyone else. The house grants it by the published rules (an endowment on confirmation, a seasonal grant, a recovery grant) and may correct a balance by a published incident entry when a rule was misapplied. Nothing from the earlier forecasting record converts into coin or rank. If DeepStack ever offers anything of value, it will be under new terms you accept separately; nothing in these terms promises it.
3. Markets, orders and settlement
The rules page is part of these terms. In short: a market is a question with a rule written before listing, a public source that settles it and a close before that source can publish; a contract pays 100 c or nothing; every order carries a price and is yours once it executes; no order is accepted after the close. A market settles by the reading of its named source, signed by the Desk Editor; a reader may contest an error of reading within the window the rules state; a market voids, and every open pair pays 50 c a side, in the cases the rules list. The house never chooses a settlement price. Errors are corrected by published incident entries, not by silent edits.
The house is your counterparty, often. DeepStack quotes both sides of its markets from its written position, through the same book as every reader, with capital, limits and results published on the house page. When you buy from the house or sell to it, the house gains in StackCoin when you lose, and loses when you gain. Its quotes are marked "house" in the book. Its own model's number is published only after a market closes.
4. Research, not advice
Everything on DeepStack, including the house's written position (the Call), the Parts, the Analyst's answers and every price, is analysis and opinion published identically to everyone. It is not investment advice, not a recommendation and not an offer to buy or sell any security, commodity or other instrument. The Analyst is a software assistant: it holds no position, places no order, does not know your situation and can be wrong. Decisions about your money, outside this platform, are yours.
5. Conduct
You agree not to:
- hold more than one account, use another person's account or let another person use yours;
- send orders by a program without declaring the account as a bot (a declared bot has its own limits and is kept out of the readers' ranking and volume);
- trade in concert with another account to move a price, pass balance between accounts or inflate volume;
- use material non-public information about a market's source, or about a company a market measures, that you hold through your work or your relationships, to trade on that market; or trade on a market that measures the reported results of your employer or of a client to whom you owe confidentiality;
- pay or receive anything of value in connection with StackCoin, a trade, a position or a place in the ranking;
- probe, overload or circumvent the platform's limits, or interfere with its operation or with the event a market measures;
- post in a Book's discussion a recommendation to buy, sell or short anything outside the platform, or anything unlawful, defamatory or harassing;
- present yourself, your account or your results as endorsed by DeepStack.
6. Review, suspension and exclusion
DeepStack's detectors read the book's own fills and a salted hash of your connection, never anything about you outside the platform. An account that trips them is placed in review, with a reason and a date you can see; while in review it is left out of the ranking and of readers' volume. You may contest a review by email to mac@deepstack.ltd within 7 days; DeepStack answers within 14 days with the reason it keeps or lifts the state. An account that breaks section 5, or that DeepStack reasonably believes to be a second account of the same person, may be suspended or closed, and trades that resulted from a technical error may be voided by a published incident entry. Open positions of a closed account settle by the rule of their markets; the coin on it has no value and is refunded to no one.
7. The invitation phase and changes
The platform is in an invitation phase. Rules, parameters and these terms may change; a change is published on the rules page with its date, and use after it is use under the new version. A market's rule never changes after it opens. DeepStack may close, void or relist a market, suspend trading on all markets (a halt, with positions preserved), reset a season, change or withdraw any feature, and end the platform, with notice on the site where practicable and without compensation of any kind, because nothing on it has value.
8. What is public
Under your pseudonym, the following are public: your place in the trading ranking, your row in any league you join, and the posts you write in a Book's discussion. Without any pseudonym, the following are public: prices, the book's levels and trades, settlements, and aggregates such as volume by origin and emission by reason. You grant DeepStack the right to publish these, and to publish the market's record as a dataset without account identifiers. Nothing public ever carries your email address.
9. Privacy
The privacy page is part of these terms and says what is kept, why and for how long. In the words the law uses: DeepStack keeps your email address, pseudonym, orders, fills, positions and balance because they are necessary to provide the account you asked for (performance of a contract, LGPD art. 7, V; GDPR art. 6(1)(b)); it reads a salted hash of your connection and the book's own fills to prevent abuse, and counts accounts by channel (legitimate interest, LGPD art. 7, IX; GDPR art. 6(1)(f)); it sends a sign-in link when you ask for one and a note when a market you hold a position in settles, each with a one-click stop. If you sign in with Google or LinkedIn, DeepStack receives your verified email address and nothing else. The platform runs on Cloudflare and Hugging Face, the Analyst's answers are written by an external model provider, and email is delivered by Resend, all in the United States; your data is processed there. You may access and correct your data from your profile and delete your account in one step: deleting it removes the email address, the pseudonym and every session; today the trading records and their backups keep the account's internal number, which after deletion is tied to no email and no name. The channel for privacy requests is mac@deepstack.ltd. DeepStack keeps no IP address in clear, no cookie, no tracker and no name but the pseudonym.
10. Content and intellectual property
The research, the markets' specifications, the software and the names DeepStack and StackCoin belong to the operator named above. Third-party data shown on a market is attributed to its source and stays under that source's terms; you may not redistribute it from DeepStack. What you write in a discussion is yours; you give DeepStack a licence to show it on the platform under your pseudonym, and it stays after you delete your account, as the privacy page says.
11. As is
The platform is provided as is, without warranty of any kind: not that a market, a price, a reading, an answer of the Analyst or the service itself is complete, correct, current or available. To the extent the law allows, the operator and the people who work on DeepStack are not liable for any loss arising from the platform, and since nothing on it has value, no loss of StackCoin is a loss of money. Where the law of your residence gives you rights that cannot be waived, those rights stand.
12. Law and disputes
When the operating company is formed, this section will name the governing law and the forum. Until then, write to mac@deepstack.ltd about any dispute; DeepStack answers within 14 days, and most questions are a misread rule, which the rules page answers. Where the law of your residence gives you a forum or a right that cannot be waived, it stands.
13. Contact
Questions about these terms go to mac@deepstack.ltd. What DeepStack keeps about you is on the privacy page; how a market works, on the rules page; what DeepStack is, on the About page.