Synfin Terms of Service
These Terms of Service (the "Terms") are an agreement between Cayvox Labs ("Cayvox Labs", "we", "us") and the person or entity accepting them ("you", the "Partner"). They govern your use of the Synfin services: the Synfin API, the partner portal at portal.synfin.xyz, the @synfin/client SDK, and the synfin.xyz websites (together, the "Service").
By creating an account, checking the acceptance box, or using an API key, you accept these Terms on behalf of yourself or the entity you represent, and you confirm you have authority to do so.
1. What Synfin is, and what it is not
1.1. Synfin is a best-execution and liquidity-routing layer for the Canton Network. The Service provides price quotes aggregated across trading venues, disclosed fee calculations, execution plans, and tooling to track execution.
1.2. Synfin is non-custodial. We never hold, control, or have access to your funds, your users' funds, or any private keys. Execution plans are carried out from your own wallet or your users' wallets, on your infrastructure. Deposits created under an execution plan are recoverable by design if a venue does not act on them, subject to the venue's own mechanics.
1.3. Synfin is not a trading venue, exchange, broker, custodian, or wallet. Trades execute on independent third-party venues that we do not operate or control.
1.4. Nothing in the Service is investment, legal, tax, or financial advice. Quotes are informational until a trade actually settles on-ledger.
2. Accounts and API keys
2.1. Accounts are for business and professional use in connection with integrating the Service. You must provide a working email address and keep it current.
2.2. API key secrets are displayed once at creation. You are responsible for storing them securely and for all activity performed with your keys. Notify us promptly at info@cayvox.com if you believe a key is compromised; you can revoke keys in the portal at any time.
2.3. Launch limits apply per account (for example: one active key, a fixed request rate, and a daily key-creation cap). Current limits are published in the documentation at synfin.xyz/docs and may be raised for partners on request.
2.4. You may not share, sell, or sublicense keys, use another party's key, or attempt to circumvent rate limits, metering, or access controls.
3. Fees
3.1. Synfin charges a service fee on routed trades, and Partners may configure their own integrator fee within the published cap. The current default rates, the fee split between the Partner and Synfin, and worked examples are published at synfin.xyz/docs/earn. Published rates are launch defaults and may change prospectively; negotiated terms for individual partners are recorded per key.
3.2. Fees settle on-ledger. Fee amounts are disclosed as line items in every quote and are collected as part of trade settlement, with the Partner's share transferred to the Partner's own configured party. Synfin does not hold Partner fee balances and there is nothing to withdraw from us.
3.3. Every quote response carries the identifier of the fee schema applied to it, so applied pricing is auditable per trade.
4. Acceptable use
4.1. You will not use the Service: to violate law or the rights of others; to create synthetic, wash, or manipulative trading activity; to probe, scan, or attack the Service or the venues; to misrepresent quotes, fees, or execution outcomes to your users; or to build a service that resells raw access to the Synfin API without integration value.
4.2. You will present fees to your end users honestly. If you set an integrator fee, you are responsible for any disclosure your users or your jurisdiction require.
4.3. We may throttle, suspend, or revoke access that we reasonably believe violates these Terms, harms the Service, the venues, or the network, or creates legal risk. Where practical we will notify you and give you a chance to remedy.
5. Service levels and changes
5.1. The Service is provided without a guaranteed service level at the free tier. Current availability is published at synfin.xyz/status. Enterprise agreements with SLAs are available separately.
5.2. We may change, add, or remove features of the Service and the API surface. Material API changes are announced in the changelog at synfin.xyz/docs/changelog. We aim to avoid breaking changes and to give reasonable notice when they are unavoidable.
5.3. Quotes depend on third-party venues. Venue availability, liquidity, pricing, and settlement behavior are outside our control, and a quote does not guarantee that a venue will accept or fill a trade at the quoted terms.
6. Execution risk, floors, and honesty of guarantees
6.1. Where a venue supports binding a minimum-receive floor at initiation, the floor is enforced by that venue's mechanics. Where a venue does not, the floor is verified by the Synfin tooling after payout, and a shortfall is surfaced as a failed outcome. The per-venue guarantee model is documented at synfin.xyz/docs/lifecycle, and you accept the differences it describes.
6.2. All transactions are initiated by the Partner or its users; Synfin does not solicit, recommend, or execute trades on anyone's behalf. On-ledger transactions are irreversible once settled. You are responsible for the amounts, parties, and parameters your integration submits.
6.3. Partners and their users are solely responsible for their own tax obligations arising from trades.
7. Intellectual property
7.1. We retain all rights in the Service, the Synfin and Cayvox Labs names and marks, the documentation, and the software, except for components we distribute under an open-source license (such as the @synfin/client SDK, which is licensed under its own published terms).
7.2. You retain all rights in your applications and data. You grant us the limited right to process your account data and usage data to operate the Service.
8. Confidentiality
Negotiated commercial terms (including any partner-specific fee schedule) are confidential between you and Cayvox Labs, unless disclosure is required by law.
9. Disclaimers
THE SERVICE IS PROVIDED "AS IS" AND "AS AVAILABLE". TO THE MAXIMUM EXTENT PERMITTED BY LAW, WE DISCLAIM ALL WARRANTIES, EXPRESS OR IMPLIED, INCLUDING MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, AND NON-INFRINGEMENT. WE DO NOT WARRANT THAT QUOTES WILL BE FILLED, THAT VENUES WILL PERFORM, THAT THE SERVICE WILL BE UNINTERRUPTED OR ERROR-FREE, OR THAT DIGITAL ASSET VALUES WILL NOT CHANGE BETWEEN QUOTE AND SETTLEMENT.
10. Limitation of liability
TO THE MAXIMUM EXTENT PERMITTED BY LAW: (A) NEITHER PARTY IS LIABLE FOR INDIRECT, INCIDENTAL, SPECIAL, CONSEQUENTIAL, OR PUNITIVE DAMAGES, OR FOR LOST PROFITS, REVENUE, OR DATA; AND (B) OUR TOTAL AGGREGATE LIABILITY ARISING OUT OF OR RELATING TO THE SERVICE IS LIMITED TO THE GREATER OF ONE HUNDRED (100) UNITED STATES DOLLARS OR THE FEES PAID BY YOU TO CAYVOX LABS IN THE TWELVE (12) MONTHS BEFORE THE EVENT GIVING RISE TO LIABILITY. NOTHING IN THESE TERMS LIMITS LIABILITY THAT CANNOT BE LIMITED BY LAW.
11. Indemnity
You will defend and indemnify Cayvox Labs against third-party claims arising from your applications, your use of the Service in violation of these Terms, or your presentation of fees or execution outcomes to your users.
12. Termination
You may stop using the Service and delete your account at any time. We may suspend or terminate access as described in Section 4.3 or on notice if we discontinue the Service. Sections 3, and 7 through 14, survive termination.
13. Governing law and disputes
[TO BE DETERMINED: governing law and venue will be specified before general availability. Until then, disputes will be addressed in good faith through direct contact.]
14. General
These Terms are the entire agreement about the Service and supersede prior discussions. If a provision is unenforceable, the rest remains in effect. We may update these Terms; material changes will be announced with a new version identifier, and continued use after the effective date constitutes acceptance. Notices to us: info@cayvox.com. Notices to you: your account email.