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Terms of service

Effective 22 September 2026. Last updated 24 September 2026; the one-Free-organization rule in section 2 applies from 8 October 2026.

What changed: on 24 September, section 8 says which license covers your copy of the Unity package: the Unity Asset Store EULA for a copy from the Unity Asset Store and, from version 0.5.0, the Chat Guard SDK License for a copy from GitHub. On 23 September, section 2 limited each person or company to one Free organization (from 8 October 2026), section 5 explained billing months and extra messages on paid plans, section 6 listed support by plan, and questions about plans moved to sales@chatguard.dev.

These terms govern the use of Chat Guard, the chat moderation service at chatguard.dev, operated by Kirill Tolmachev pr Beograd (Belgrade, Serbia; "Chat Guard", "we"). By creating an organization, adding an API key to a game or server, or sending a request to the API, you ("the customer", "you") agree to them on behalf of the studio or company you represent. If you do not agree, do not use the service.

1. The service

Chat Guard receives chat messages from your game servers or client builds, returns moderation verdicts (categories, severity, target and a recommended action), and offers a dashboard to manage projects, API keys, thresholds, rules and logs. The Unity package and the HTTP API are the documented ways to use it. Verdicts are calibrated probabilities produced by a machine-learning model; they can be wrong. You decide what your game does with them, and you remain responsible for the moderation policy you apply to your players.

2. Accounts and organizations

You sign in with a Google or GitHub account. An organization holds projects, members and billing. Owners and admins may invite members; you are responsible for everyone you invite and for keeping your sign-in accounts secure. Tell us at support@chatguard.dev if you believe an account or key has been compromised.

Each person or company may own one organization on the Free plan. Creating extra accounts or organizations to get more free usage than one Free plan gives, or moving keys between organizations for that purpose, breaks these terms; we may then suspend those organizations or ask you to move to a paid plan.

3. API keys

Server keys (cg_live_) must stay on servers you control. Publishable keys (cg_pub_) may ship in client builds and carry the limits described in the documentation. Test keys are for development. Requests made with your keys are yours, whoever sent them, until you revoke the key in the dashboard. Do not share keys between organizations or resell access to the API.

4. Acceptable use

You may not use Chat Guard to

  • process content you have no right to process, or in breach of the privacy notice you give your players;
  • probe, overload or interfere with the service, or circumvent quotas, rate limits or key restrictions;
  • build a competing moderation service by systematically collecting verdicts;
  • moderate chat for services that are themselves unlawful.

We may suspend keys or organizations that break these rules, and will tell you when we do unless the law prevents it.

5. Plans, quotas and fees

Each organization is on a plan (Free, Indie, Studio or Enterprise) with a number of included messages checked by the model and, on paid plans, a rate for extra messages. Current prices and included messages are on the pricing section of chatguard.dev and in the dashboard; they apply as shown there at the time of use. Which messages count is defined in the API reference.

On Free, the included messages count over a rolling 30 days. Above them, a Free organization's messages are answered by the built-in word filter instead of the model until the count drops again, and nothing is billed.

On paid plans, the included messages reset each billing month, and billing months follow your subscription's dates. Messages above them are still checked by the model. These extra messages cost $0.25 per 1,000 at current prices and are billed with the invoice for the billing month in which they're recorded; usage is recorded once a day, the next morning (UTC). Days before your paid subscription started are never billed. The rolling 30-day count that the dashboard and the API show is a guide to your usage; the bill follows billing months. Enterprise volumes and prices are set in the Enterprise agreement.

Paid plans are sold through Polar Software Inc. (polar.sh), our merchant of record. Polar charges your payment method, issues invoices and handles taxes and refunds under its own terms, which you accept at checkout. Subscriptions renew monthly until canceled; cancellation takes effect at the end of the current billing month, and extra messages recorded during it are billed with it. We may change prices with at least 30 days' notice by email or in the dashboard; changes apply from your next renewal.

6. Availability and support

We run the service on a best-effort basis and aim for high availability, but we do not promise a particular uptime unless an Enterprise agreement says so. When the model is unreachable the API answers with the built-in word filter and marks the response as degraded, as described in the documentation. We may change or retire features with reasonable notice, and may interrupt the service for maintenance or security reasons.

Support depends on your plan. Reply times are aims, not guarantees:

Questions about plans: sales@chatguard.dev.

7. Your data and your players' data

How the service handles message content, hashes, verdicts and player identifiers is described in the privacy notice at chatguard.dev/privacy, which forms part of these terms. In short: by default we store hashes and verdicts, not message text; evidence logging is a per-project opt-in with a retention you choose; player data can be erased by identifier. Where we process personal data on your behalf, we act as processor and you as controller, under the data processing agreement at chatguard.dev/dpa, which forms part of these terms on every plan.

You are responsible for telling your players that chat is moderated by an automated service and for having a lawful basis to send us their messages.

8. Intellectual property

Chat Guard, its model, word lists, documentation and dashboard remain our property or that of our licensors. These terms cover the service: the API, the model and the dashboard. You receive a non-exclusive, non-transferable right to use the service for as long as your organization exists and these terms are respected.

The Unity package, including the code, word lists and documentation that come with it, is licensed to you under the license that comes with your copy: for a copy from the Unity Asset Store, the standard Unity Asset Store EULA; for a copy from GitHub, the Chat Guard SDK License in the repository's LICENSE.md (releases before 0.5.0 keep the MIT license they were published under). On the Unity Asset Store we publish as Proper Assets. These terms do not add to or change that license.

You keep all rights to your game and to the messages you send us; you grant us the right to process them to provide the service and to improve the local word lists in aggregate, never by publishing message text.

9. Warranties and liability

The service is provided as is. To the extent the law allows, we disclaim implied warranties, including fitness for a particular purpose, and we do not warrant that verdicts are accurate or that harmful content will always be caught or harmless content never flagged.

To the extent the law allows, our total liability for all claims arising out of the service in any 12-month period is limited to the fees you paid us for the service in that period, and we are not liable for indirect or consequential loss, lost profits or lost players. Nothing in these terms limits liability that cannot be limited by law.

10. Termination

You can delete projects and keys at any time, cancel a paid plan through the billing page, and ask us to delete your organization by email to support@chatguard.dev. We may terminate or suspend an organization for breach of these terms, for non-payment, or if we discontinue the service, with notice where practicable. After termination we delete organization data within 30 days, except what we must keep for accounting or legal reasons.

11. Changes to these terms

We may update these terms. Material changes are announced by email to organization owners or in the dashboard at least 14 days before they take effect; continued use after that date is acceptance. The current version is always at chatguard.dev/terms.

12. Governing law

These terms are governed by the law of the Republic of Serbia, and disputes are heard by the competent court in Belgrade, without prejudice to mandatory consumer protection rules that may apply to you elsewhere.

Contact

Kirill Tolmachev pr Beograd, Belgrade, Serbia. Email: support@chatguard.dev. Questions about plans: sales@chatguard.dev.