Privacy Policy

Last Updated: December 22, 2025

Introduction

BlockRun ("we," "our," or "us") is committed to protecting your privacy. This Privacy Policy explains how we collect, use, and share information when you use our AI model gateway service and x402 payment infrastructure.

No Identity Required: BlockRun does not collect personal identity information (name, email, phone number, KYC documents, etc.). You connect your wallet and pay - that's it. Wallet addresses are pseudonymous and do not inherently reveal your identity.

By using BlockRun, you agree to the collection and use of information in accordance with this policy.

Information We Collect

1. API Usage Data

When you use our API, we collect:

  • API requests and responses (prompts and completions)
  • Model selection and parameters
  • Token usage and pricing information
  • Timestamps and request metadata

2. Payment Information

For x402 payments, we collect:

  • Blockchain wallet addresses (public)
  • Transaction signatures and payment proofs
  • Payment amounts and network information
  • Transaction hashes (publicly available on blockchain)

Note: Wallet addresses and transaction data are already public on the blockchain - anyone can view them using a block explorer. We do not collect or store private keys, seed phrases, or any credentials that provide access to your wallet. All payments are processed using EIP-3009 TransferWithAuthorization, which keeps your private keys on your device.

When you use BlockRun, you're sharing your wallet address to receive payment requests and make on-chain transactions. This is standard for all blockchain payments and poses no security risk to your wallet.

3. Website Analytics

We use Google Analytics to understand how users interact with our website:

  • Page views and navigation patterns
  • Device and browser information
  • Geographic location (country/city level)
  • Referral sources

How We Use Your Information

  • Service Delivery: To process your API requests and facilitate payments
  • Payment Settlement: To verify and settle x402 payments via CDP Facilitator
  • Analytics: To improve our service and understand usage patterns
  • Support: To respond to inquiries and provide customer support
  • Security: To detect and prevent fraud and abuse

Data Sharing with Third Parties

AI Model Providers

When you make API requests, your prompts and responses are sent to the respective AI provider:

  • OpenAI: For GPT-5.2, o1, and DALL-E models
  • Anthropic: For Claude models
  • Google: For Gemini models
  • DeepSeek, xAI, Together.ai, Mistral: For their respective models

Important - OpenAI Data Sharing: We have enabled OpenAI's data sharing program to receive complimentary daily tokens. This means:

  • Your prompts and completions sent to OpenAI models may be used by OpenAI to improve their models
  • OpenAI processes this data according to their Privacy Policy
  • Do not send sensitive, confidential, or proprietary information to OpenAI models

Payment Processing

  • CDP Facilitator (Coinbase): Verifies and settles x402 payments on Base network
  • Blockchain Networks: Payment transactions are publicly recorded on Base, Solana, and other supported blockchains

Analytics Services

  • Google Analytics: Website usage analytics (anonymized)
  • Supabase: Database and analytics infrastructure

Data Retention

  • Transaction Records: Retained indefinitely for accounting and compliance
  • API Logs: Retained for 30 days for debugging and support
  • Analytics Data: Retained for 26 months (Google Analytics default)

Data Security

We implement industry-standard security measures to protect your data:

  • HTTPS encryption for all data in transit
  • Encrypted storage for sensitive data at rest
  • Regular security audits and updates
  • Access controls and authentication

However, no method of transmission over the internet is 100% secure. We cannot guarantee absolute security.

Your Rights

Depending on your location, you may have the following rights:

  • Access: Request a copy of your personal data
  • Correction: Request correction of inaccurate data
  • Deletion: Request deletion of your data (subject to legal obligations)
  • Portability: Request transfer of your data
  • Objection: Object to certain data processing activities

To exercise these rights, please contact us at privacy@blockrun.ai

Cookies

We use cookies and similar technologies for:

  • Google Analytics tracking
  • Session management
  • User preferences (dark mode, etc.)

You can control cookies through your browser settings.

Children's Privacy

BlockRun is not intended for users under 13 years of age. We do not knowingly collect personal information from children under 13.

International Data Transfers

Your data may be transferred to and processed in countries other than your country of residence. We ensure appropriate safeguards are in place for such transfers.

Changes to This Policy

We may update this Privacy Policy from time to time. We will notify you of any changes by posting the new Privacy Policy on this page and updating the "Last Updated" date.

Contact Us

If you have any questions about this Privacy Policy, please contact us:

Summary: BlockRun is a pseudonymous AI gateway - no sign-up, no KYC, no personal information required. We process your API requests through third-party AI providers, facilitate payments via blockchain, and use standard web analytics. Your API inputs/outputs to OpenAI may be used for model training. We do not store wallet private keys or link wallet addresses to identities.