Terms of Service

Version 2.0 — effective 5 September 2026.

Version 2.0 — effective 5 September 2026. These terms govern use of the Crypto ETF Sentinel API at api.cryptoetfsentinel.com, the Terminal dashboard at terminal.cryptoetfsentinel.com, the Telegram bot, and the website at cryptoetfsentinel.com (together, "the Service"). "We" and "us" means the operator of the Service. "You" means anyone who calls the API or uses its data, including software acting on a person's behalf. Contact: [email protected].

The Service is machine-first: most callers are programs. Where these terms say "you agree", sending a request to a paid route, paying for one, or subscribing to a plan is the agreement.

1. What the Service is

The Service collects public filings that spot crypto exchange-traded fund issuers make with the US Securities and Exchange Commission (SEC), classifies each issuer's regulatory stage, and serves the filings, comment letters, XBRL financials and operational profiles as structured data. Each record links to the filing it came from. Heuristic pipeline signals (risk scores, outcome signals, launch timing) are benchmarks derived from historical filing patterns, and their track record is published free at https://api.cryptoetfsentinel.com/v1/pipeline/accuracy.

We relay what issuers disclose. We do not forecast the SEC, and we do not provide investment, financial, legal or tax advice. See the full disclaimer at https://cryptoetfsentinel.com/disclaimer.html.

2. Paying for the API

There are two ways to pay. Both cover the same routes.

• Per call (x402). Each keyless request to a paid route is a separate purchase, priced as stated in the HTTP 402 response at the time of the call and settled in USDC on the blockchain named in that response (Base or Solana). No account is needed. Payment settles on-chain before the response is returned, and each signed payment authorisation is single-use.
• Subscription (API key). The Developer ($10/month) and Professional ($25/month) plans are billed monthly through Stripe and auto-renew until cancelled. Each subscription issues one API key; you are responsible for keeping it confidential. Cancel any time by email; access continues to the end of the current billing period. The Professional plan includes the Terminal dashboard.
• The free tier needs no payment or key and is subject to a daily call limit and a 24-hour data delay.
• Prices can change. The per-call price is the one in the 402 response you receive. Subscription price changes are announced on the website before they take effect.
• No refunds for delivered responses or partial months. If a per-call payment settled and the response did not reach you, email us with the transaction hash and we will look into it. A settled payment cannot be replayed for a second response.
• Third parties. Per-call payments are verified and settled by a third-party payment facilitator, which applies its own screening; subscriptions are processed by Stripe. Blockchain transactions are public and irreversible by nature. We do not control the facilitator, the networks, Stripe or the wallets you use.

3. Your licence to use the data

• What you may do. You may store, analyse, transform and display the data you have paid for, combine it with other data, and use it inside your own products, models, research and decisions, including products you sell.
• What you may not do. You may not redistribute the feed itself, or a copy that substitutes for calling the Service, whether free or for a fee. You may not present the Service's data as a primary source you originated. You may not remove the source filing references from records you pass on.
• Facts are not ours. The underlying SEC filings are public. Our licence covers our compilation, issuer curation, stage classification, signals, enrichment and the way the data is served, not the public facts themselves.
• Attribution. Not required. Where you cite the Service, "Crypto ETF Sentinel" and a link to cryptoetfsentinel.com is appreciated.

4. Accuracy, coverage and what we do not promise

• Signals are heuristics. Risk scores, outcome signals and launch timing are benchmarks computed from historical filing patterns. They are not probabilities, predictions or guarantees. Their measured track record is published at https://api.cryptoetfsentinel.com/v1/pipeline/accuracy; a track record is not a promise about any future outcome.
• Data can be wrong or late. Filings are read by software, issuers amend and withdraw, and the SEC acts on its own timetable. We correct served data when we find it wrong.
• Coverage is curated, not total. The Service tracks the issuers we have identified as US spot crypto ETF registrants (including staking ETFs). It does not cover futures-based products, non-US listings, or issuers we have not yet identified.
• Verify before acting. Every record links to its source filing so you can check it. If a decision matters to you, check the primary source.
• No warranty. The Service and its data are provided "as is" and "as available", without warranties of any kind, express or implied, including accuracy, completeness, fitness for a particular purpose, or uninterrupted availability.

5. Availability, rate and change

• Best effort, no service level agreement. We aim to keep the Service running continuously but do not guarantee uptime or response times.
• Rate. Per-route rate limits and the free tier's daily limit are returned in response headers. Do not attempt to circumvent them. Sustained excess load may be throttled or blocked.
• Changes. Breaking API changes are announced on the website before they take effect. Additive changes, new fields and new routes, may ship without notice.

6. Acceptable use

You agree not to: bypass or interfere with the payment mechanism, rate limits or API keys; share, publish or embed your API key in client-side code; probe, overload or attack the Service or its infrastructure; scrape the Service other than through its documented routes; use the Service in breach of any law, sanction or regulation that applies to you; or misrepresent the source of data obtained from the Service. We may revoke keys and block callers who do any of these, without refund.

7. What we log and how we use it

For each request we may record the route, the time, the response status, the User-Agent header and the calling IP address. For each per-call payment we also record the payer wallet address, the payee address, the network, the amount and the transaction hash; these are also public on the blockchain by the nature of the payment. For subscriptions we hold the email address and Stripe customer reference needed to issue and recover your key; card details are held by Stripe, not by us. The Telegram bot stores the chat identifier needed to deliver alerts you subscribed to.

We use these records to operate the Service, measure demand, detect abuse and resolve payment questions. We do not sell them and we do not use them to profile individuals. Records are kept for as long as they are needed for those purposes. To ask what we hold about a wallet address, email or IP, or to ask for its removal where the law gives you that right, email [email protected]. See also the privacy policy at https://cryptoetfsentinel.com/privacy.html.

8. Limitation of liability

To the fullest extent permitted by law: we are not liable for any indirect, incidental, special, consequential or punitive loss, or for any loss of profit, revenue, data or opportunity, arising from the Service or its data, including any trading or investment loss; and our total liability to you for all claims in any twelve-month period is limited to the amount you paid the Service in that period. Nothing in these terms excludes liability that cannot be excluded by law.

9. Termination

Either party may end the relationship at any time. We may suspend or terminate access without notice for a breach of these terms; no refund is provided on termination for cause.

10. Changes to these terms

We may update these terms. Material changes are announced on the website before they take effect where practicable, and the version and effective date at the top of this page change. Continued use after the effective date is acceptance of the new terms.

11. Governing law

These terms are governed by the law of England and Wales, and the courts of England and Wales have exclusive jurisdiction over any dispute arising from them, without prejudice to any mandatory consumer rights you hold where you live.

12. Contact

[email protected]. Reports of a wrong record are especially welcome: include the issuer CIK and the filing you are comparing against, and we will investigate.