Chain utilizes the following third-party subprocessors to deliver core platform functionality. All vendors are vetted for security, privacy, and operational standards:
Amazon Web Services (AWS) – Infrastructure, storage, compute
Twilio – SMS and voice communication
SendGrid – Transactional email delivery
Intercom – In-app support and messaging
Google Maps API – Geolocation services
LocationIQ – Supplemental geolocation
OpenAI – AI/LLM functionality
Claude (Anthropic) – AI/LLM functionality
PostHog (subject to usage) – Product analytics (self-hosted)
Sentry (subject to usage) – Error monitoring
For the most current list of subprocessors, please contact: team@trychain.com