Subprocessors
Last updated September 3, 2026.
DeepInquiry uses the third-party service providers below to operate the Service. Each receives only the minimum data it needs to perform its function and is bound by contract to protect that data. This list is referenced by our Privacy Policy and Terms of Service.
| Provider | Purpose | Data processed | Location |
|---|---|---|---|
| Stripe | Payments and subscription billing | Email, billing details, payment method | United States |
| Vercel | Website and API hosting | Request logs, IP address | United States / global CDN |
| Supabase | Managed Postgres database | Account records, usage rows | United States |
| Resend | Transactional email | Email address | United States |
| Sentry | Error monitoring | Error stacks, request URLs | United States |
| Cloudflare | DNS and edge network | Request metadata, IP address | Global |
| OpenAI | Embedding generation for semantic search queries (API and web) | Submitted search-query text | United States |
| Anthropic | Internal fact-verification pipeline (extraction, scoring, verification) — does not process customer API request data | DeepInquiry-curated candidate claims and public source excerpts | United States |
Changes
We update this page whenever we add, remove, or replace a subprocessor. Non-material changes take effect on publication. Enterprise customers who need advance written notice can request that in their order form; email api@deepinquiry.ai.
Contact
Questions about our subprocessors or data processing: api@deepinquiry.ai.
DeepInquiry is operated by Machine Accountability Corporation, a Delaware corporation.