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Terms of Service.

Please read these terms carefully before using Traderline.

Last Updated: 19 May 2026

These General Terms apply to all Traderline products and services. Depending on which exchange you use, additional product-specific terms also apply. See the Polymarket or Betfair tab for those.

Company Information

Traderline is operated by:

Mythical Technologies, Lda
VAT/NIF: 513557849
Registered Address: Instituto Pedro Nunes, Rua Pedro Nunes – Quinta da Nora, Ed. D, 3030-199 Coimbra, Portugal

For any questions regarding our policies or services, contact us at help@traderline.com.

1. Nature of Service

1.1
These terms and conditions (the "Terms") constitute a legal agreement between Traderline ("we" or "our") and you, the user. The Traderline applications and services, available for desktop and mobile, are referred to here as "Traderline".
1.2
Traderline is a suite of client applications that connect to third-party exchanges through their public APIs. Traderline provides a professional trading interface with features such as ladder views, charting, one-click execution, and other tools designed to support trading efficiency. Each supported exchange has its own dedicated Traderline application. Traderline develops software exclusively for exchanges that are regulated, licensed, or operating in compliance with the laws of their jurisdiction of incorporation, and the software is intended for use by eligible users of those exchanges in jurisdictions where the exchange is authorised to operate.
1.3
Traderline is not an exchange, a gambling operator, a prediction market, a financial services provider, a broker, a skin, or a white-label of any exchange. Traderline does not operate or host any marketplace. All trading activity takes place entirely on the relevant exchange's infrastructure.
1.4
Traderline does not accept, process, or hold client bets, trades, or funds. These activities are managed exclusively by the relevant exchange or operator. Your account, your balance, and your positions belong to and are held by the exchange, not by Traderline.
1.5
Users are solely responsible for ensuring their activities comply with the laws and regulations of their jurisdiction. Access to the underlying exchanges is controlled by those exchanges through their own compliance infrastructure; Traderline does not independently restrict or grant access to any exchange.
1.6
Traderline is provided as a software tool and, like any software, may contain bugs, errors, or unexpected behaviour. Traderline does not guarantee that the software will be error-free, uninterrupted, or free from defects. Features such as order placement, price display, and data feeds depend on external APIs and network conditions beyond Traderline's control. You acknowledge that software errors, API latency, connectivity issues, or exchange-side outages may result in delayed, failed, or incorrectly executed actions, and Traderline shall not be liable for losses arising from such events.
1.7
The availability of Traderline for download or use does not constitute a representation or warranty that its use is lawful in your jurisdiction. You must independently verify that your use of Traderline and the underlying exchange complies with all applicable laws before using Traderline.

2. Content and Intellectual Property

2.1
We strive to keep the information on our website, desktop, and mobile applications accurate and up to date but do not guarantee its accuracy at all times.
2.2
We are not responsible for external websites linked to Traderline. You are subject to the terms and conditions of each third-party site.
2.3
All material on Traderline's website and applications, including but not limited to text, software, graphics, and trademarks, is protected by copyright, trademark, or other proprietary rights.
2.4
You may not use our trademarks or trade names for commercial purposes without our prior written consent.

3. Limitation of Liability

3.1
Information on Traderline's website and applications is provided on an "as is" and "as available" basis. We do not warrant compatibility with your devices or uninterrupted service.
3.2
Traderline may occasionally be unavailable due to maintenance, upgrades, or other reasons. We reserve the right to change the content or technical specifications of any aspect of Traderline at any time.
3.3
We are not liable for indirect losses, including loss of profits, business, or data, arising as secondary effects from any primary loss or damage.
3.4
Traderline products may be provided free of charge or subject to fees as described in the applicable product-specific terms. To the maximum extent permitted by applicable law, Traderline's aggregate liability to you for any cause whatsoever shall not exceed fifty euros (EUR 50). You acknowledge that this liability cap reflects the nature and cost of Traderline, including where it is provided at no charge.
3.5
If a change in applicable law or a regulatory order requires Traderline to restrict, modify, or discontinue any of its services, Traderline will use reasonable efforts to comply promptly. In such circumstances, Traderline shall not be liable for any loss arising from the restriction, modification, or discontinuation of the affected service.

4. Regulatory Compliance

4.1
Mythical Technologies, Lda is registered in Portugal as a software development company (CAE 62010). Traderline is a software product. It is not a gambling service, a financial intermediary, or a payment service.
4.2
Traderline cooperates with regulatory authorities and will comply with any lawful order directed at it. Because Traderline does not hold user accounts or control access to any exchange, the restriction of user access is performed by the exchanges themselves through their own compliance and geo-restriction infrastructure. If you believe your use of a supported exchange may conflict with the laws of your jurisdiction, you must not use Traderline.
4.3
Traderline does not target, market, or promote its services to residents of jurisdictions where the underlying exchange is not licensed or otherwise not permitted to operate. The availability of Traderline's website or applications in a given jurisdiction does not constitute an offer or invitation to use Traderline where doing so would be unlawful. Traderline's website is available in English and Brazilian Portuguese to serve its international user base; the availability of content in a given language does not constitute targeting of any specific country or jurisdiction.
4.4
Any fees collected by Traderline, including builder fees on supported exchanges, constitute compensation for the provision of software services and API infrastructure. They do not represent a commission on, or participation in, any gambling, trading, or investment outcome. Where fees are calculated on a per-order basis, this pricing model reflects the structure of the relevant exchange's builder or vendor program and is a standard method of pricing API-based software services.
4.5
Eligibility verification, including age verification, identity verification, and geographic restriction enforcement, is performed by the underlying exchange, not by Traderline. Traderline relies on the exchange's own API-level controls and compliance infrastructure to restrict access from ineligible users. Users who misrepresent their eligibility do so in violation of these Terms and the underlying exchange's terms of use, and bear sole responsibility for the consequences.

5. Data Protection

5.1
Traderline processes personal data in accordance with applicable data protection law, including Regulation (EU) 2016/679 (the General Data Protection Regulation). Details on what data is collected, how it is used, and your rights as a data subject are set out in our Privacy Policy.
5.2
Traderline does not sell, rent, or share personal data with third parties for marketing purposes.

6. Indemnification

You agree to indemnify, defend, and hold harmless Traderline, its operators, officers, employees, contractors, and affiliates from and against any claims, damages, losses, liabilities, costs, and expenses (including reasonable legal fees) arising out of: (i) your use of Traderline; (ii) your breach of these Terms; (iii) your violation of any law or regulation; (iv) your violation of any applicable exchange's terms of use; or (v) any false or misleading representation made under these Terms.

7. Modifications

Traderline may modify these Terms at any time by posting the revised Terms on its website. Material changes will be notified through the application or by email where provided. Continued use after the effective date constitutes acceptance.

8. Termination

Traderline may suspend or terminate your access at any time, with or without notice, for any reason, including breach of these Terms. Sections 2, 3, 4, 5, 6, and 9 survive termination.

9. Governing Law

These Terms are governed by the laws of Portugal, without regard to conflict of laws principles. Any dispute shall be resolved exclusively by the competent courts of Coimbra, except where mandatory consumer protection laws of your country of residence provide otherwise.

10. Contact

For any questions regarding these Terms, contact us at help@traderline.com.

Last Updated: 19 May 2026

These terms apply specifically to Traderline for Polymarket and supplement the General Terms. By using Traderline for Polymarket, you agree to both.

1. Eligibility and User Representations

By using Traderline for Polymarket, you represent and warrant that:

(a) You are at least 18 years of age, or the age of majority in your jurisdiction, whichever is higher;

(b) You are not a resident of, located in, citizen of, or organized under the laws of any jurisdiction where access to Polymarket is blocked or restricted, including but not limited to: the United States, the United Kingdom, France, Germany, Hungary, Italy, the Netherlands, Belgium, Slovakia, Australia, Russia, Belarus, Myanmar, Cuba, Iran, Iraq, North Korea, Libya, Lebanon, Nicaragua, Syria, Somalia, South Sudan, Sudan, Venezuela, Yemen, Zimbabwe, Burundi, Central African Republic, the Democratic Republic of the Congo, Ethiopia, Ontario or Quebec (Canada), Portugal, and the Crimea, Donetsk, and Luhansk regions of Ukraine. Jurisdictions where Polymarket permits closing positions only (including Poland, Singapore, Thailand, and Taiwan) are also considered Restricted Jurisdictions for the purpose of opening new positions. This list may change as Polymarket updates its geographic restrictions (the "Restricted Jurisdictions");

(c) You are not acting on behalf of, or under the direction of, any person located in a Restricted Jurisdiction;

(d) You are not listed on any sanctions list maintained by OFAC, the EU, or the UK; and

(e) You will not use any VPN, proxy, or similar tool to circumvent geographic restrictions applicable to Traderline or Polymarket.

Any breach of this Section is a material breach of these Terms and may result in immediate termination of your access.

2. Relationship to Polymarket

Traderline is an independent third-party interface that connects to Polymarket via the public Polymarket Builder Program. Traderline is not affiliated with, endorsed by, or operated by Adventure One QSS, Inc., Blockratize, Inc., or any Polymarket entity.

Your use of Polymarket is governed by Polymarket's Terms of Use at polymarket.com/tos, which you must independently review and accept.

3. Software Service Fee (Builder Fee)

Traderline participates in the Polymarket Builder Program and may apply a builder fee to orders placed through the application. This fee constitutes compensation for the provision of software services and API infrastructure provided by Traderline. It is not a commission on, or participation in, any trading or investment outcome. The builder fee is separate from any fees charged by Polymarket itself.

The current builder fee rate is publicly queryable through Polymarket's builder profile system. Traderline will provide at least 3 days' advance notice before any change to the builder fee rate, in accordance with Polymarket's Builder Program policies.

4. Wallet and Key Responsibility

You are solely responsible for the security, backup, and recovery of your private keys, wallets, and credentials. Traderline cannot recover, reset, or restore lost private keys.

If you import a private key originally generated through Polymarket's email login (Magic Link), you acknowledge that the key, once exported, is no longer recoverable through Polymarket's email recovery process.

Traderline takes reasonable measures to secure the application and protect user data. However, the ultimate responsibility for safeguarding your private keys and wallet credentials remains with you.

5. Trading Risk and No Advice

Trading on prediction markets involves substantial risk of loss. Contracts traded on Polymarket are experimental, volatile, and irreversible. You may lose the full amount of any cryptoassets used to enter into a Contract.

Traderline does not provide investment, legal, tax, or financial advice. All information displayed in Traderline is for informational purposes only. You are solely responsible for your trading decisions.

Last Updated: 19 May 2026

These terms apply specifically to Traderline for Betfair and supplement the General Terms. By using Traderline for Betfair, you agree to both.

1. Relationship to Betfair

1.1
Traderline for Betfair is an independent third-party application listed in the Betfair App Directory as part of the Betfair Vendor Program. Listing in the App Directory does not constitute or imply any form of endorsement or recommendation by Betfair. Betfair accepts no responsibility for any loss, direct or indirect, suffered as a result of using Traderline.
1.2
Your use of the Betfair Exchange is governed by Betfair's Terms and Conditions at betfair.com/aboutUs/Terms.and.Conditions, which you must independently review and accept. Your relationship with Traderline is separate from your relationship with Betfair.

2. Account and Jurisdiction Requirements

2.1
You must hold an active Betfair account to use Traderline for Betfair. Traderline for Betfair is not available to residents of Portugal or any other jurisdiction where the Betfair Exchange restricts access or does not operate.
2.2
Traderline for Betfair is provided free of charge. There are no subscription fees, licence fees, or usage charges. Traderline for Betfair is a client application for the Betfair Exchange that integrates additional features and tools, some of which are not available on Betfair's platform, to support user control and efficiency in trading.
2.3
The same geographic restrictions enforced by the Betfair Exchange apply when using Traderline for Betfair. Betfair determines which jurisdictions it serves based on its own licensing and regulatory obligations. Traderline defers to Betfair's own geo-restriction controls, which are enforced at the API level. You are responsible for independently verifying that your use of the Betfair Exchange is lawful in your jurisdiction.
2.4
Traderline does not market or promote Traderline for Betfair to residents of jurisdictions where Betfair does not operate or restricts access.

3. Credential Storage and Privacy

3.1
Traderline does not have visibility of your Betfair username, password, or any other sensitive data that may link you to a Betfair account. All authentication happens directly between the application on your device and the Betfair API over a secure channel.
3.2
If you choose to store your Betfair credentials locally on your device, they are encrypted. Traderline never transmits, stores, or processes your credentials on our servers, and the application does not communicate with the Betfair API through any proxy.

4. Responsible Gambling

4.1
The Betfair Exchange operates under licences issued by gambling regulators including the UK Gambling Commission and the Malta Gaming Authority. By using Traderline for Betfair, you acknowledge that all betting and trading activities are subject to the responsible gambling rules and regulations of the relevant licensing authorities.
4.2
Traderline does not encourage excessive or irresponsible gambling. If you believe you may have a gambling problem, we encourage you to use the responsible gambling tools provided by Betfair, including deposit limits, self-exclusion, and time-out features, accessible through your Betfair account.

5. Affiliates

5.1
Affiliates are subject to these Terms and any additional terms specified in their Affiliate Agreement. Traderline reserves the right to modify affiliate terms at any time, with reasonable notice provided to affiliates.
5.2
Affiliates are responsible for ensuring their promotions of Traderline adhere to local laws and regulations, including but not limited to Betfair account holder requirements.
Last Updated: 19 May 2026

This Privacy Policy describes how Mythical Technologies, Lda (VAT 513557849, Coimbra, Portugal) processes personal data in accordance with Regulation (EU) 2016/679 (GDPR). Contact: help@traderline.com.

1. Data We Collect and Why

1.1
Email address — collected when you subscribe to communications or contact support. Legal basis: consent (newsletter) or legitimate interest (support).
1.2
Website analytics — Google Analytics collects anonymised usage data (pages visited, browser type, approximate location). Analytics cookies require your consent and are only placed after you accept them. You may withdraw consent at any time through your browser settings or by clearing cookies. Legal basis: consent.
1.3
Crash reports — Sentry collects diagnostic data (device type, OS, app version, error details) when the application encounters an error. Legal basis: legitimate interest in software quality.
1.4
Exchange credentials and private keys are stored locally on your device. Traderline does not transmit or store this data on its servers.

2. Third Parties and International Transfers

Data may be processed by Google (analytics), Sentry (crash reports), and our email service provider (newsletters). Some of these services are based in the United States; where data is transferred outside the EEA, appropriate safeguards (Standard Contractual Clauses or equivalent) are in place. We do not sell or share personal data for third-party marketing.

3. Retention

Email addresses are retained until you unsubscribe. Analytics data is retained for up to 14 months. Crash reports are retained for up to 90 days. Support correspondence is retained for up to 24 months.

4. Your Rights

Under the GDPR you may request access to, rectification of, or erasure of your personal data, restrict or object to processing, or request data portability. You may withdraw consent at any time. Contact help@traderline.com; we will respond within 30 days. You also have the right to lodge a complaint with the CNPD (cnpd.pt) or your local supervisory authority.