Protocol Subprocessor List
Last updated: June 13, 2026
Protocol LLC uses the following material service providers to process information in connection with the Services. The precise data processed depends on the features a Customer uses.
| Provider | Purpose | Information that may be processed | Privacy information |
|---|---|---|---|
| Anthropic | AI-enabled research, analysis, generation, routing, and related Product features | Customer Content, public marketing content, prompts or request data, Generated Output, and technical metadata needed to provide the feature | Anthropic Privacy Policy |
| OpenAI | AI-enabled research, analysis, generation, routing, and related Product features | Customer Content, public marketing content, prompts or request data, Generated Output, and technical metadata needed to provide the feature | OpenAI Privacy Policy |
| Sentry | Error monitoring, diagnostics, reliability, performance, and security | Error events, stack traces, device and network information, User or account identifiers, and limited Customer Content if included in an error event | Sentry Privacy Policy |
| WorkOS | Authentication, email verification, account and organization management, and related security | Name, email, identity-provider information, organization membership, authentication events, device and network information | WorkOS Privacy Policy |
| Stripe | Subscription billing, payments, invoices, tax-related functions, fraud prevention, refunds, and disputes | Billing and contact information, payment method data, transaction details, device information, fraud signals, and subscription status | Stripe Privacy Policy |
| Attio | Customer-relationship management, sales, support, and communications | Contact information, company and role information, communication history, account or relationship status, and sales/support notes | Attio Privacy Policy |
Protocol may update this list as providers or Product functions change. Material changes should be reflected in the Privacy Policy and, where contractually required, communicated to affected customers.