Terms of Service

These Terms of Service ("Terms") govern your access to and use of the 13x website (get13x.dev), the 13x desktop application, and related services (together, the "Service"), provided by Pascal Zagarolo, Bozenerstraße 26, 42659 Solingen, Germany ("we", "us"). Contact: support@get13x.dev.

By creating an account, starting a trial, subscribing, or installing and using the desktop application, you agree to these Terms. If you do not agree, do not use the Service.

If you use the Service on behalf of an organization, you confirm that you are authorized to bind that organization, and "you" refers to that organization.

13x is a local-first workspace for running and controlling coding agents: a terminal grid, rigs, code map and symbol graph, context packets, run capture and traces. The desktop application runs on your device and operates on your local files; it does not upload your source code to us.

Supported platform at launch is Windows 10/11 (x64). Code map and symbol-graph features currently extract symbols for TypeScript/TSX and Rust; other languages are shown without symbol-level analysis. Feature availability differs by plan as described on the pricing page.

13x is editor- and agent-agnostic. Third-party coding agents and AI models you run through 13x (for example Claude Code, Codex, Gemini, or any shell-based agent) are operated by their respective providers under their own terms; you are responsible for your use of and any keys you supply to those providers ("bring your own key").

The free, local tier requires no account. A 13x account is required only for the Pro subscription and billing. You must provide accurate information, keep your credentials secure, and are responsible for activity under your account.

You must be at least 18 years old, or of legal age in your jurisdiction, to purchase a subscription. We may suspend or terminate accounts that violate these Terms.

The Service offers a free tier, a paid Pro subscription, and contact-based plans as described on the pricing page. Prices, currency and billing intervals shown at checkout apply. Pro is billed in advance on a monthly or yearly basis and renews automatically until cancelled.

In addition to subscriptions, we may offer a one-time "lifetime" licence for Pro, sold in limited quantities at the price shown at checkout. A lifetime licence is a single, non-recurring payment: it is not a subscription, does not renew, and is not billed again. What it includes and how long it lasts are described in section 6 (Licence) below.

New accounts may receive a time-limited Pro trial without a credit card. Unless you subscribe, paid features become unavailable when the trial ends; we do not charge you automatically at the end of a card-free trial.

Payments are processed by Stripe. We are a small business within the meaning of § 19 UStG (Kleinunternehmerregelung): the prices shown are final and no VAT is charged or added at checkout. You authorize us, via Stripe, to charge your payment method for your purchase and, for subscriptions, for renewals at the then-current price. We may change prices for future purchases and billing periods with reasonable prior notice.

You can cancel anytime from the billing portal; cancellation takes effect at the end of the current paid period and you retain access until then. Except as required by law or stated in our Right of Withdrawal and Refund Policy, payments are non-refundable.

If you are a consumer in the EU, you have a statutory right to withdraw from a purchase within 14 days. Details, including how this interacts with immediate access to digital content, are set out in our Right of Withdrawal and Refund Policy (/refund), which forms part of these Terms.

Subject to these Terms and your plan, we grant you a limited, non-exclusive, non-transferable, revocable licence to install and use the 13x desktop application for your internal development purposes.

Duration. The licence applies for as long as your plan entitles you to it: for a subscription, the paid term (including renewals); for a one-time "lifetime" licence, the lifetime of the 13x Pro product — that is, for as long as we continue to offer and operate 13x Pro generally — rather than a recurring term. "Lifetime" refers to the lifetime of the product, not the natural life of any person.

A lifetime licence is personal to your account or organization and non-transferable. It includes the updates and new features we make generally available to Pro, at no additional charge, while it remains in effect. It does not include materially separate future products or optional add-ons we may offer separately, nor any third-party or usage costs (such as AI-model tokens under your own keys).

If we discontinue 13x Pro entirely, we will give reasonable prior notice. Because a lifetime licence is a one-time purchase rather than an ongoing service, discontinuation after a reasonable period does not by itself entitle you to a refund, except where required by mandatory law. We will not revoke a validly purchased lifetime licence except for a material breach of these Terms or where the purchase is refunded or charged back.

You may not: (a) resell, sublicense or distribute the Service; (b) reverse engineer, decompile or circumvent technical limitations except where such restriction is prohibited by law; (c) remove proprietary notices; or (d) use the Service to build a competing product. We retain all rights not expressly granted.

You agree not to use the Service unlawfully, to infringe others' rights, to transmit malware, to attempt to gain unauthorized access, or to interfere with the Service's integrity or performance. You are solely responsible for the commands, scripts, agents and code you run through 13x and for any output they produce.

You retain all rights to your code, files and data. The desktop application processes them locally. For account and billing, we process the limited personal data described in our Privacy Policy (/privacy).

You are responsible for backups of your local 13x data (rigs, runs and similar), which is stored on your device.

The Service relies on third parties (for example Stripe for payments, and the AI/agent providers you choose to run). We are not responsible for third-party services, their availability, pricing, or the cost of tokens/usage you incur with model providers under your own keys.

The Service is provided "as is" and "as available". To the extent permitted by law, we disclaim implied warranties of merchantability, fitness for a particular purpose and non-infringement. We do not warrant that the Service will be uninterrupted, error-free, or that automated analysis (such as blast-radius or token-savings estimates) is complete or accurate. Statutory warranty rights for consumers remain unaffected.

We are liable without limitation for intent and gross negligence, and for injury to life, body or health, and under mandatory law (including product-liability law). For slight negligence we are liable only for breach of an essential contractual obligation (a duty whose fulfilment makes proper performance possible and on which you may reasonably rely), limited to foreseeable, contract-typical damages.

Any further liability is excluded. This does not affect mandatory statutory consumer rights.

These Terms apply while you use the Service. You may stop at any time and cancel any subscription as described above. We may suspend or terminate access for material breach, with notice where appropriate. Provisions that by their nature should survive (licence restrictions, disclaimers, liability, governing law) survive termination.

We may update these Terms to reflect changes to the Service or for legal reasons. We will notify you of material changes (for example by email or in-app) before they take effect. Continued use after the effective date constitutes acceptance; if you do not agree, you may cancel.

These Terms are governed by the laws of the Federal Republic of Germany, excluding the UN Convention on Contracts for the International Sale of Goods. Mandatory consumer-protection provisions of your country of residence remain unaffected. For merchants, the place of jurisdiction is our registered seat where legally permissible.

Questions about these Terms: support@get13x.dev. Provider details are in the Legal Notice (/impressum).

Last updated: 25 June 2026.