ChainAnalyzer Terms of Service

Last updated: April 23, 2026

These Terms of Service ("Terms") govern the use of ChainAnalyzer ("Service"), a blockchain and anti-money-laundering (AML) analysis service operated by refinancier, inc. ("Company"). By using the Service, individuals and entities ("User") are deemed to have agreed to these Terms.

Article 1 (Definitions)

1. "Service" means ChainAnalyzer operated at https://chain-analyzer.com and all related services, including the web interface, REST API, AI analysis features, ScamDB, and other functionality.
2. "User" means any individual or legal entity that uses the Service after agreeing to these Terms.
3. "Analysis Results" means risk scores, detection alerts, reports, and any other information provided by the Service in relation to blockchain addresses, tokens, and transactions.
4. "API" means the REST API and other programmatic interfaces provided by the Company.
5. "API Key" means the authentication credentials issued by the Company for API use (including identifiers starting with tfk_).
6. "BYOK" (Bring Your Own Key) means the method by which a User connects the Service with the User's own API keys from third-party services (such as Helius, Birdeye, Etherscan).
7. "Paid Plans" means the Starter, Pro, Enterprise, and any other paid plans of the Service.

Article 2 (Scope of the Service)

1. The Service is a SaaS that analyzes addresses, tokens, and transactions on public blockchains (Bitcoin, Ethereum, Avalanche, Polygon, Solana, and any other chains the Company may add) and provides the following features:
   • Risk detection for sanctions lists, money laundering, mixer usage, and similar patterns
   • Fraud risk detection including rug pulls, honeypots, and drainers
   • Analysis of wallet holder concentration, liquidity, and metadata
   • Anomaly detection using machine learning models (Isolation Forest, AutoEncoder, GraphSAGE)
   • Analysis summary generation using generative AI (GPT-5.4, o3, etc.)
   • Lookups against ScamDB for known fraudulent addresses
   • Batch scanning, watchlists, API integration, and webhook alerts
2. Features, specifications, and usage limits differ by plan and are set out on the Company's pricing page.
3. The Company may change features, specifications, and pricing of the Service with prior notice to Users or public announcement.

Article 3 (Registration and Formation of Agreement)

1. Any party wishing to use the Service shall complete registration in the manner designated by the Company.
2. The Company may refuse or revoke registration if the applicant falls under any of the following:
   • The Company determines there is a risk of violation of these Terms
   • The applicant has registered false information
   • The applicant is an anti-social force or has a relationship with such
   • The applicant has previously been subject to suspension or similar measure for violation of these Terms
   • Any other reason the Company considers the applicant unsuitable
3. The agreement between the User and the Company regarding the Service ("Agreement") is formed upon completion of registration (or, for Paid Plans, upon completion of the first payment).

Article 4 (Fees and Payment)

1. Users shall pay fees corresponding to their plan via methods designated by the Company (such as credit card payment through Stripe).
2. Paid Plans are, in principle, billed monthly and auto-renew until the User cancels.
3. Fees paid are non-refundable except as required by law or specifically approved by the Company.
4. The Company may change fees. Fee changes take effect on the effective date stated in a prior notice (email or in-Service announcement) delivered to the User.
5. Usage-based charges or overage fees for API use are set out separately in a fee schedule provided by the Company.
6. For Users on Enterprise plans or other individually contracted arrangements, the terms of the individual contract prevail over this Article.

Article 5 (API and API Key Management)

1. The Company provides the API to Users on Paid Plans, subject to the rate limits defined per plan.
2. API Keys are issued per User; Users are responsible for strictly safeguarding their API Keys.
3. Users shall not disclose, transfer, or lend API Keys to third parties.
4. The Company bears no liability for damages arising from leakage or unauthorized use of API Keys, except in cases of the Company's willful misconduct or gross negligence. Users shall promptly notify the Company upon detecting API Key leakage and have the API Key reissued.
5. The Company may restrict or suspend API use without prior notice if:
   • Usage exceeds the rate limit
   • There is suspicion of abuse or violation of these Terms
   • Such action is necessary to protect the system or preserve other Users' environment
6. For BYOK usage, Users are responsible for their own agreements with the relevant third-party service; the Company bears no liability for changes in availability, pricing, or conditions of such third-party services.

Article 6 (Nature of Analysis Results and Disclaimer)

Article 7 (Intellectual Property)

1. All intellectual property rights in the Service and all programs, databases, detection logic, machine learning models, documentation, user interfaces, design, trademarks, and logos comprising the Service ("Service Assets") belong to the Company or its licensors.
2. These Terms grant Users a right to use the Service Assets; they do not transfer any rights in the Service Assets.
3. Users shall not perform any of the following with respect to Service Assets:
   • Reproduction, modification, translation, adaptation, public transmission, or distribution
   • Reverse engineering, decompilation, or disassembly
   • Sublicensing, resale, or leasing to third parties
   • Use for the purpose of developing or providing a competing service
4. With respect to data (such as blockchain addresses and transaction hashes) that Users upload or transmit to the Service, Users grant the Company the following rights:
   • Use to the extent necessary to provide the Service
   • Use in anonymized and aggregated form for statistical purposes and model improvement
   • Analysis for purposes of quality improvement of the Service

Article 8 (Prohibited Conduct)

Users shall not engage in any of the following while using the Service:

1. Violation of laws or public order and morals
2. Activity related to, or risking, criminal conduct
3. Infringement of the intellectual property, privacy, reputation, or other rights of the Company, other Users, or third parties
4. Placing excessive load on the servers or network of the Service
5. Obstruction of the operation of the Service
6. Unauthorized access, or attempts thereat
7. Development of a competing service based on information obtained from the Service
8. Use of the Service to facilitate transactions for sanctioned parties or criminal organizations
9. Transfer, disclosure, or lending of API Keys to third parties
10. Provision, resale, or redistribution of the Service or Analysis Results to third parties without the Company's prior written consent
11. Sending a volume of requests beyond ordinary use through automated scripts, bots, scraping tools, or the like
12. Any other conduct the Company deems inappropriate

Article 9 (Service Level and Maintenance)

1. The Company will use reasonable efforts to maintain the availability of the Service but may suspend all or part of the Service without prior notice in any of the following cases:
   • Maintenance, updates, or emergency maintenance of the system
   • Force majeure such as earthquake, fire, power outage, or communications failure that makes provision of the Service difficult
   • Cases where the Company reasonably determines such action is necessary
2. The Company bears no liability beyond Article 11 for damages arising from interruption, delay, or suspension of the Service.
3. Where an individual SLA is set out in an Enterprise or other individual contract, that SLA prevails over this Article.

Article 10 (Personal Information and Data Handling)

1. The Company handles Users' personal information in accordance with the separately published Privacy Policy.
2. The Service analyzes blockchain addresses; blockchain addresses themselves are treated as not constituting personal information under the Act on the Protection of Personal Information. However, where a User intentionally links a blockchain address with personal information, the Company treats such data as personal information.
3. The Company does not disclose information provided by Users or data generated through use of the Service to third parties, except as required by law or with User consent.
4. Users are responsible for confirming that inputting their managed blockchain addresses, customer information, or similar data into the Service does not violate applicable laws or any contracts the User has entered into (including contracts with the User's customers).

Article 11 (Limitation of Liability)

Article 12 (Termination by User)

1. Users may terminate use of the Service at any time via the procedures designated by the Company.
2. For termination of a monthly-billed Paid Plan, termination takes effect at the end of the billing period in which the termination procedure is completed; fees paid through that period are not refundable.
3. For annual or other fixed-term contracts, the provisions of the individual contract apply.

Article 13 (Termination and Suspension by the Company)

1. The Company may terminate the Agreement or suspend all or part of the Service, without prior notice or demand, if the User:
   • Violates these Terms
   • Fails to fulfill a payment obligation
   • Is found to have registered false information
   • Is found to be an anti-social force
   • Receives a petition for or files for attachment, provisional attachment, bankruptcy, civil rehabilitation, corporate reorganization, or special liquidation
   • Is otherwise deemed unsuitable by the Company
2. Upon termination under the preceding paragraph, the User shall immediately discharge all obligations owed to the Company.
3. The Company bears no liability for damages to the User arising from termination or suspension under this Article.

Article 14 (Confidentiality)

1. Information about the Company's technology, know-how, detection logic, business, or customers that the User learns through use of the Service and that the Company designates as confidential or that by its nature should be treated as confidential shall not be disclosed or leaked to third parties without the Company's prior written consent.
2. The obligation under the preceding paragraph survives for three years after termination of the Agreement.

Article 15 (Export Controls)

Users shall comply with the Foreign Exchange and Foreign Trade Act and other applicable export-control laws when using the Service, and shall not provide the Service or Analysis Results to countries or persons subject to sanctions by the United States, the European Union, the United Nations, or other competent authorities.

Article 16 (Modifications to These Terms)

1. The Company may modify these Terms.
2. Modified Terms take effect upon publication on the Service, and Users are deemed to have agreed to the modified Terms.
3. For changes material to Users, the Company will provide prior notice of the changes and effective date by email or in-Service announcement.
4. A User who does not consent to the modified Terms may notify the Company and terminate use of the Service.

Article 17 (Assignment)

1. Users may not assign, lend, or provide as collateral their position under the Agreement or any rights or obligations thereunder without the Company's prior written consent.
2. The Company may, in connection with a transfer of the business related to the Service to a third party, transfer its position, rights, obligations, and User registration information under the Agreement to the transferee, and Users consent in advance to such transfer.

Article 18 (Severability)

If any provision of these Terms is held invalid or unenforceable under applicable law or by a court, the remaining provisions shall remain in full force and effect.

Article 19 (Governing Law and Jurisdiction)

1. The formation, effect, interpretation, and performance of these Terms and the Agreement are governed by the laws of Japan.
2. All disputes relating to the Service or these Terms shall be subject to the exclusive jurisdiction of the Tokyo District Court as the court of first instance.

Article 20 (Contact)

Please direct inquiries, notices, and other communications regarding these Terms to:

refinancier, inc.
ChainAnalyzer Support
Website: https://chain-analyzer.com
Contact form: https://chain-analyzer.com/contact_us

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Supplementary Provisions

• These Terms take effect on April 23, 2026.
• In the event of any discrepancy between the Japanese version of these Terms and any other language version, the Japanese version prevails.