Terms of Service

In plain English

• Slurry is for businesses only. By signing up you confirm you are acting for a business, not as a consumer.
• You pay your subscription up front each month. It renews automatically until you cancel, and cancelling stops the next renewal.
• Slurry creates simulated, synthetic test environments. It is not the real third-party system and must never hold real personal data or production data.
• You must follow our Acceptable Use Policy. We monitor for abuse and can suspend accounts that break it.
• The service is provided for testing, "as is". Our total liability is capped at the fees you paid in the previous 12 months.
• English law applies and the courts of England and Wales decide disputes.

This summary is for convenience only. The full terms below are what apply.

1. About us and these terms

1.1 Slurry (the "Service") is operated by The Next Renaissance Ltd, a company registered in England and Wales with company number 10373346, whose registered office is at [registered office address] ("Slurry", "we", "us", "our"). Contact: legal@slurry.io.

1.2 These Terms of Service (the "Terms") form a binding contract between us and the business entity that registers for, orders or uses the Service (the "Customer", "you", "your"). The following documents are incorporated into these Terms by reference and form part of the agreement: the Acceptable Use Policy (https://slurry.io/legal/acceptable-use), the Data Processing Addendum (https://slurry.io/legal/dpa), the Refund Policy (https://slurry.io/legal/refunds), the Disclaimer (https://slurry.io/legal/disclaimer) and any Order (together, the "Agreement"). The Privacy Policy and Cookie Policy explain how we handle personal data but are not contractual terms.

1.3 If there is a conflict between documents, the following order of priority applies: (a) the Data Processing Addendum, in relation to personal data only; (b) any Order signed by both parties; (c) these Terms; (d) the Acceptable Use Policy; (e) any other incorporated document.

1.4 You accept these Terms by ticking the acceptance box when you create an account, by placing an Order, or by using the Service. The individual who accepts confirms that they have authority to bind the Customer. If they do not have that authority, they must not accept these Terms or use the Service.

2. Business customers only

2.1 The Service is supplied only to businesses, sole traders acting in the course of their trade, public bodies and other organisations, for purposes relating to their trade, business, craft or profession. It is not offered to consumers.

2.2 By accepting these Terms you warrant that you are not a consumer and are entering into the Agreement wholly or mainly for purposes related to your trade, business, craft or profession. Statutory rights that apply only to consumers, including the cancellation (cooling-off) rights in the Consumer Contracts (Information, Cancellation and Additional Charges) Regulations 2013 and the rights in the Consumer Rights Act 2015, do not apply to the Agreement.

2.3 You must be at least 18 years old to accept these Terms on behalf of a Customer.

2.4 You warrant that neither you nor any person who owns or controls you is a person or entity subject to sanctions administered by the United Kingdom, the United Nations, the European Union or the United States, or is located in, organised under the laws of or ordinarily resident in a country or territory subject to comprehensive sanctions. We may refuse, suspend or terminate the Service where we reasonably believe that supplying it would breach applicable sanctions or export control law.

3. Definitions

3.1 In the Agreement:

• "Account" means the account created for the Customer to access the Service.
• "Authorised User" means an employee, contractor or agent of the Customer whom the Customer permits to use the Service under its Account, and includes any automated agent or software acting under the Customer's credentials.
• "Credits" means prepaid generation credit purchased by the Customer and consumed when the Service uses a Slurry-hosted language model to generate or mutate data.
• "Customer Content" means any material the Customer or its Authorised Users upload, submit or configure in the Service, including API specifications (such as OpenAPI or Swagger documents), prompts, seed instructions, rules, webhook destinations and fixed outputs.
• "Generated Data" means synthetic data produced by the Service for a Simulation, whether by a language model, by rules or by mutation schedules.
• "MCP Server" means the Model Context Protocol server and associated programmatic interfaces through which the Customer, its Authorised Users or their AI agents may create and manage Simulations.
• "Order" means an order for a Subscription Plan or Credits placed through the Service or a separate order form signed by both parties.
• "Simulation" means a simulated third-party system created in the Service, including its endpoints, state, Generated Data, mutation schedules, webhooks and rules, exposed at a subdomain of slurry.io or another address we provide.
• "Subscription Plan" means the plan selected by the Customer (for example Starter, Team or Scale) setting out the features, usage limits and fees that apply.
• "Subscription Period" means each monthly (or other agreed) period for which Subscription Fees are paid.

4. The Service

4.1 The Service lets you create Simulations of third-party partner systems for software integration testing. A Simulation can be created from our library of API definitions or from a specification you upload, populated with Generated Data, kept in a persistent state, changed on a schedule, configured to send webhooks, and configured with per-endpoint rules such as errors, latency and fixed responses. Simulations are protected by API keys and by IP allow-lists, which are enabled by default.

4.2 Simulations are approximations. They are not the real third-party system, are not connected to it, and are not endorsed by or affiliated with the provider of that system. We give no assurance that a Simulation behaves in the same way as the real system. The Disclaimer sets this out in more detail.

4.3 Generated Data is synthetic test data. It is created for testing and must not be treated or relied on as real data about any person, business or transaction.

4.4 We may change, improve or withdraw features of the Service from time to time. If we make a change that materially reduces the core functionality of your Subscription Plan during a Subscription Period you have paid for, we will give you at least 30 days' notice where reasonably practicable, and you may terminate the Agreement under clause 16.4 and receive a pro-rata refund of prepaid Subscription Fees for the unused part of the Subscription Period.

4.5 Features described as "beta", "preview", "experimental" or similar are provided without any commitment to availability or support and may be changed or withdrawn at any time.

4.6 We will use reasonable endeavours to make the Service available, but we do not guarantee any level of availability or uptime and no service level agreement applies unless agreed in a signed Order. Planned maintenance will, where practicable, be announced in advance.

5. Accounts and security

5.1 You must provide accurate and complete registration and billing information and keep it up to date.

5.2 You are responsible for all activity under your Account, including activity by Authorised Users and by any software or AI agent that uses your API keys, MCP credentials or session tokens, whether or not you authorised that specific action.

5.3 You must keep passwords, API keys, MCP credentials and bring-your-own model keys confidential and secure, use multi-factor authentication where we make it available, and notify us promptly at security@slurry.io if you suspect any unauthorised access or compromise.

5.4 IP allow-lists are enabled by default on Simulations and on programmatic access. If you disable or widen an allow-list, you accept responsibility for the resulting exposure of that Simulation.

5.5 We may require you to rotate credentials, or may revoke them, where we reasonably believe they have been compromised or misused.

6. MCP Server and programmatic access

6.1 We may make the MCP Server and other programmatic interfaces available so that you and your AI agents can create, configure and manage Simulations. Use of these interfaces is subject to the Agreement, including any rate limits, quotas and technical documentation we publish.

6.2 Actions taken through the MCP Server or our APIs using your credentials are treated as actions taken by you. You are responsible for configuring, supervising and limiting any AI agent you connect, including any costs (such as Credit consumption) it incurs.

6.3 We may apply rate limits, spending limits, confirmation steps and other controls to programmatic access, and may throttle or suspend programmatic access that we reasonably believe is excessive, automated abuse or a risk to the Service.

7. Subscription Plans, Credits and bring-your-own model keys

7.1 Subscription Plans. Each Subscription Plan includes the features and usage limits described on our pricing page at the time of your Order. Current published prices are: Starter US$19 per month, Team US$79 per month and Scale US$249 per month, in each case exclusive of taxes. Prices on the pricing page at the time of your Order apply.

7.2 Credits. Credits are purchased in advance and are consumed at the rates shown in the Service when a Slurry-hosted model generates or mutates data. Credits have no cash value, are not transferable, cannot be exchanged for money except as set out in the Refund Policy, and expire 12 months after purchase unless we state otherwise at the point of sale. We will show your Credit balance in the Service.

7.3 Bring-your-own model key. If you supply your own API key for a third-party language model provider, (a) the model provider processes your requests under its own terms with you, and Slurry is not a party to that relationship; (b) you are responsible for all charges the provider makes; (c) you are responsible for ensuring your use complies with that provider's terms; and (d) we store the key encrypted and use it only to perform the Service for you. We are not responsible for the availability, output or conduct of your model provider.

7.4 Usage limits. If you reach a usage limit of your Subscription Plan, we may restrict further use until the next Subscription Period, until you upgrade, or until you buy additional Credits.

8. Fees, payment and taxes

8.1 Payment in advance. Subscription Fees are payable in advance at the start of each Subscription Period. Credits are payable in full at the time of purchase. No Subscription Plan is activated, and no Credits are made available, until payment has been successfully taken.

8.2 Payment method. Payment is processed by our payment provider, Stripe. You authorise us, through Stripe, to charge your nominated payment method for all fees when due, including renewals. We do not store your full card details.

8.3 Currency. Fees are stated and charged in US dollars unless we state another currency at the point of sale. You are responsible for any currency conversion and bank charges.

8.4 Taxes. All fees are exclusive of value added tax, sales tax, goods and services tax and similar taxes. Where we are required to charge such taxes, they will be added to the invoice at the applicable rate. Where the reverse charge mechanism applies, you must provide a valid VAT or tax identification number and your business location, and you are responsible for accounting for the tax. If you are required by law to withhold any tax from a payment, you must gross up the payment so that we receive the full amount invoiced.

8.5 Failed payments. If a payment fails, we will notify you and retry. If payment has not been received within 7 days after the due date, we may suspend the Service (including Simulations) until payment is made, and if payment remains outstanding 30 days after the due date we may terminate the Agreement under clause 16.2.

8.6 Price changes. We may change our prices by giving at least 30 days' notice by email. The new price applies from the start of your next Subscription Period after the notice expires. If you do not agree to the new price, you may cancel before it takes effect.

8.7 Disputes. If you dispute an invoice in good faith you must tell us at billing@slurry.io within 30 days of the charge, giving reasons. You must not raise a chargeback without first giving us a reasonable opportunity to resolve the dispute. We may suspend an Account that is subject to an unresolved chargeback.

9. Renewal, cancellation and plan changes

9.1 Auto-renewal. Each Subscription Plan renews automatically at the end of each Subscription Period for a further Subscription Period of the same length, and you will be charged the applicable fee at renewal, unless cancelled in accordance with clause 9.2.

9.2 Cancellation. You may cancel your Subscription Plan at any time in the billing area of the Service or by emailing billing@slurry.io. Cancellation takes effect at the end of the current Subscription Period. You will keep access until then, and no further Subscription Fees will be charged. Except as set out in the Refund Policy or clause 4.4, Subscription Fees already paid are not refunded.

9.3 Upgrades take effect immediately and we will charge a pro-rata amount for the remainder of the current Subscription Period. Downgrades take effect at the start of the next Subscription Period. A downgrade may reduce limits, and you must bring your usage within the new limits (for example by deleting Simulations) before it takes effect, failing which we may disable the Simulations that exceed them.

9.4 Reminders. For any Subscription Period of more than one month we will send a reminder at least 14 days before renewal.

10. Acceptable use and customer obligations

10.1 You must, and must ensure that your Authorised Users and agents, comply with the Acceptable Use Policy, which is incorporated into these Terms.

10.2 Without limiting the Acceptable Use Policy, you must not upload, enter, generate, store or transmit through the Service any real personal data, real payment card data, real credentials or real production data. Simulations are for synthetic test data only.

10.3 You must not use the Service to deceive any person into believing they are dealing with a real third-party service, to direct traffic at third-party systems, or to serve web pages or scripts to end users.

10.4 You are responsible for your systems that connect to Simulations, and for making sure that nothing you build relies on a Simulation in a production environment.

11. Monitoring and suspension

11.1 To protect the Service, other customers and third parties, we operate automated and manual monitoring of Customer Content, Generated Data, request logs, webhook destinations and usage patterns. This includes scanning for patterns that look like real personal data, card numbers, credentials, phishing content and abusive traffic. Monitoring is described in the Acceptable Use Policy and the Privacy Policy.

11.2 We may, without liability, immediately suspend all or part of the Service (including specific Simulations, webhooks, API keys or the MCP Server) where we reasonably believe that: (a) you or your Authorised Users are in breach of the Acceptable Use Policy or clause 10; (b) your use poses a security risk to the Service or any third party; (c) your use may expose us or others to legal liability; (d) payment is overdue under clause 8.5; or (e) we are required to do so by law or by a competent authority.

11.3 Where reasonably practicable and lawful, we will tell you the reason for a suspension and give you an opportunity to remedy it. We will lift a suspension once the reason for it has been resolved to our reasonable satisfaction. Subscription Fees remain payable during a suspension caused by your breach.

12. Intellectual property

12.1 Our IP. We and our licensors own all intellectual property rights in the Service, including the platform, software, MCP Server, documentation, our library of API definitions as curated and adapted by us, generation templates, prompts, rules engine and branding. Except for the licence in clause 12.2, nothing in the Agreement transfers any of those rights to you.

12.2 Licence to use the Service. Subject to the Agreement and payment of the fees, we grant you a non-exclusive, non-transferable, non-sublicensable licence during the term to access and use the Service, and to permit Authorised Users to do so, for your internal software development and testing purposes.

12.3 Your content. You keep all rights in your Customer Content. You grant us a worldwide, non-exclusive, royalty-free licence during the term to host, copy, process, transform and display Customer Content as needed to provide, secure and support the Service and to perform monitoring under clause 11.

12.4 Your warranty about content. You warrant that you have all rights, licences and permissions necessary to upload and use Customer Content in the Service, including any third-party API specification you upload, and that doing so does not infringe any third party's rights or breach any licence or contract (such as a vendor's developer terms).

12.5 Generated Data. As between the parties, and to the extent any rights exist in it, you own the Generated Data produced for your Simulations, and may use it for any lawful purpose consistent with the Agreement. You acknowledge that Generated Data is produced by automated means, may be similar to data produced for other customers and may not be protected by intellectual property rights.

12.6 Third-party names and specifications. Third-party product names, trade marks and API specifications referenced in the Service belong to their respective owners. They are used only to identify the system being simulated. Their use does not imply any affiliation, sponsorship or endorsement. Library specifications are sourced from public or openly licensed sources and are subject to the attributions and licences shown in the Service.

12.7 Feedback. If you give us suggestions or feedback about the Service, we may use them freely without obligation to you.

12.8 Restrictions. You must not copy, modify, create derivative works of, decompile or reverse engineer the Service, except to the extent that such restrictions are not permitted by law, and must not use the Service to build a competing product.

13. Customer data and data protection

13.1 Each party will comply with applicable data protection law, including the UK GDPR and the Data Protection Act 2018.

13.2 We are the controller of account, billing and usage data about you and your Authorised Users, as described in our Privacy Policy.

13.3 The Service is designed so that no personal data is processed within Simulations. If, despite clause 10.2 and the Acceptable Use Policy, personal data is included in Customer Content or Generated Data, we process it as your processor under the Data Processing Addendum, which forms part of the Agreement. The existence of the Data Processing Addendum does not permit you to upload personal data.

13.4 If we detect what appears to be real personal data or production data in a Simulation, we may quarantine, redact or delete it and suspend the affected Simulation without liability, and will tell you where lawful and practicable.

13.5 You are responsible for backing up any Customer Content you wish to keep. Simulations are test environments and we do not guarantee the retention of any Simulation state.

14. Confidentiality

14.1 Each party will keep confidential the other's non-public business, technical and financial information disclosed in connection with the Agreement ("Confidential Information"), use it only to perform or receive the Service, and disclose it only to its employees, contractors and advisers who need to know it and are bound by equivalent obligations.

14.2 Confidential Information does not include information that is or becomes public other than through breach, was lawfully known to the recipient beforehand, is independently developed, or is lawfully received from a third party without restriction.

14.3 A party may disclose Confidential Information where required by law, a court or a regulator, giving the other party prompt notice where lawful.

14.4 These obligations survive termination for 3 years, and indefinitely for trade secrets and security information.

15. Warranties, disclaimers and liability

15.1 Mutual warranties. Each party warrants that it has full power and authority to enter into the Agreement.

15.2 Our warranty. We warrant that we will provide the Service with reasonable skill and care. If we breach this warranty, your sole remedy is for us to use reasonable endeavours to correct the non-conformity or, if we cannot do so within a reasonable time, for either party to terminate the affected Subscription Plan and for us to refund prepaid Subscription Fees for the unused part of the Subscription Period.

15.3 Disclaimer. Except as expressly set out in the Agreement, the Service, Simulations and Generated Data are provided "as is" and "as available" for testing purposes. To the fullest extent permitted by law, all other warranties, conditions and terms, whether express or implied by statute, common law or otherwise (including as to satisfactory quality, fitness for purpose and accuracy), are excluded. In particular we do not warrant that: (a) a Simulation matches the current or future behaviour, schema, error codes, rate limits or latency of any real system; (b) the Service will be uninterrupted or error-free; (c) Generated Data is accurate, complete or free of content that resembles real data; or (d) use of the Service will satisfy any regulatory, security, certification or compliance requirement.

15.4 Nothing excluded. Nothing in the Agreement limits or excludes liability for death or personal injury caused by negligence, for fraud or fraudulent misrepresentation, or for any other liability that cannot be limited or excluded by law.

15.5 Excluded losses. Subject to clause 15.4, neither party will be liable, whether in contract, tort (including negligence), breach of statutory duty or otherwise, for any: (a) loss of profits, revenue, business, contracts or anticipated savings; (b) loss of goodwill or reputation; (c) loss or corruption of data (except the cost of restoring data from the latest backup where the loss is caused by our breach); (d) losses arising from reliance on a Simulation or Generated Data as if it were a real system or real data; or (e) indirect or consequential loss.

15.6 Cap. Subject to clauses 15.4 and 15.7, each party's total aggregate liability arising under or in connection with the Agreement in any period of 12 months is limited to the total fees paid and payable by the Customer under the Agreement in the 12 months before the event giving rise to the claim.

15.7 Exceptions to the cap. The cap in clause 15.6 does not apply to: (a) the Customer's obligation to pay fees; (b) the Customer's liability under clause 17 (indemnity); (c) the Customer's liability for breach of the Acceptable Use Policy or clause 10; or (d) either party's liability for wilful misconduct.

15.8 The parties agree that these limitations are reasonable, taking into account that the Service is a low-cost testing tool supplied for synthetic data only, that fees are set on that basis, and that each party can insure against its own risks.

16. Term and termination

16.1 The Agreement starts when you accept these Terms and continues until terminated in accordance with this clause.

16.2 We may terminate the Agreement, or any Subscription Plan, immediately by written notice if you: (a) commit a material breach that is not capable of remedy, including a serious or repeated breach of the Acceptable Use Policy; (b) commit a material breach that is capable of remedy and fail to remedy it within 14 days of notice; (c) fail to pay any amount within 30 days of its due date; or (d) become insolvent, enter administration, liquidation or any arrangement with creditors, or cease to trade.

16.3 You may terminate the Agreement immediately by written notice if we commit a material breach that is not remedied within 14 days of notice, or if we become insolvent. In that case we will refund prepaid Subscription Fees for the unused part of the Subscription Period.

16.4 You may terminate the Agreement for convenience by cancelling in accordance with clause 9.2, and may also terminate under clause 4.4, clause 8.6 or clause 19.1.

16.5 We may terminate the Agreement for convenience on 60 days' notice, in which case we will refund prepaid Subscription Fees for any period after termination and any unused Credits.

16.6 Effect of termination. On termination: (a) all licences end and you must stop using the Service; (b) all Simulations, subdomains, webhooks and API keys will be disabled; (c) all outstanding fees become payable; (d) you may export your Customer Content for 30 days after termination (except where termination is for breach of the Acceptable Use Policy, in which case we may delete it immediately); and (e) after that period we will delete Customer Content and Generated Data within a further 30 days, subject to our legal retention obligations and to routine backup cycles which expire within 35 days.

16.7 Clauses that by their nature should survive termination will survive, including clauses 8, 12, 13, 14, 15, 16.6, 17 and 19.

17. Indemnity

17.1 You will defend and indemnify us, our officers, employees and subcontractors against all claims, losses, damages, penalties, fines, costs and expenses (including reasonable legal fees) arising from: (a) your Customer Content, including any claim that it infringes a third party's rights or breaches a licence; (b) your breach of the Acceptable Use Policy or clause 10, including any inclusion of real personal data, card data or credentials in the Service; (c) any use of a Simulation, Generated Data or webhook in a way that deceives or harms a third party; (d) actions taken by AI agents or software using your credentials; or (e) your breach of any third-party terms that apply to your use (including model provider terms).

17.2 We will defend you against any third-party claim that the Service (excluding Customer Content, library API specifications and third-party components) infringes that third party's UK intellectual property rights, and will pay damages finally awarded or agreed in settlement. If such a claim is made or likely, we may procure the right for you to keep using the Service, modify it so it does not infringe, or terminate the affected Service and refund prepaid fees for the unused period. This clause states our entire liability for infringement claims.

17.3 A party seeking indemnity must notify the other promptly, give it sole control of the defence and settlement, and provide reasonable cooperation at the indemnifying party's cost.

18. Force majeure

Neither party is liable for any delay or failure to perform caused by events beyond its reasonable control, including failure of hosting, network or third-party model providers, cyber attacks, acts of government, fire, flood, epidemic, war or industrial action (not involving its own workforce). This clause does not excuse payment obligations.

19. General

19.1 Changes to these Terms. We may update these Terms. For material changes we will give at least 30 days' notice by email or in the Service. The updated Terms take effect from the start of your next Subscription Period after the notice expires. If you do not accept them you may cancel before they take effect. Changes required by law or to address security or abuse may take effect sooner.

19.2 Notices. We will send notices to the email address associated with your Account. You must send notices to legal@slurry.io. Notices by email are treated as received on the next business day in England.

19.3 Assignment. You may not assign or transfer the Agreement without our prior written consent. We may assign or transfer it to an affiliate or to a successor to our business on notice to you.

19.4 Subcontracting. We may use subcontractors and sub-processors to provide the Service, and remain responsible for their performance.

19.5 Entire agreement. The Agreement is the entire agreement between the parties about its subject matter and supersedes all earlier discussions. Each party confirms it has not relied on any statement not set out in the Agreement. Nothing in this clause limits liability for fraud. Any purchase order or terms supplied by you are excluded.

19.6 Waiver and severance. A failure or delay in exercising a right is not a waiver. If any provision is found invalid, the rest of the Agreement continues in force and the invalid provision is modified to the minimum extent necessary to make it valid.

19.7 No partnership. Nothing in the Agreement creates a partnership, joint venture or agency between the parties.

19.8 Third-party rights. No one other than the parties has any right under the Contracts (Rights of Third Parties) Act 1999 to enforce any term of the Agreement.

19.9 Publicity. Neither party will use the other's name or logo in marketing without prior written consent, except that we may list you as a customer if you have agreed to this in the Service.

19.10 Language. The Agreement is concluded in English.

19.11 Governing law. The Agreement and any dispute or claim (including non-contractual disputes or claims) arising out of or in connection with it are governed by the law of England and Wales.

19.12 Jurisdiction. The courts of England and Wales have exclusive jurisdiction to settle any such dispute or claim, except that either party may seek urgent injunctive relief in any court of competent jurisdiction.

20. Contact

The Next Renaissance Ltd, trading as Slurry. Registered in England and Wales, company number 10373346. Registered office: [registered office address]. VAT number: [VAT number, if registered]. Email: legal@slurry.io (legal), billing@slurry.io (billing), security@slurry.io (security), abuse@slurry.io (abuse reports).