Subprocessors

Last updated 5 November 2026

Running Dray

• Fly.io: our servers, our database (in Toronto, Canada), our own read-aloud voice and the machines that draw movies.
• Cloudflare: delivering usedray.com securely and telling us which country a request comes from; storing your files, recordings and movies; live presence when you study with friends.
• Resend: sending email. It receives your email address and the email.
• Apple: purchases in the iPhone and iPad apps, and delivering notifications (their title and text).
• Stripe: payments and taxes on the Mac and the web. It receives your email address and what you buy.

AI providers

• Anthropic (Claude): answers, planning and checking movies, turning lecture transcripts into notes, suggesting a notebook for a file, and reading your school's pages when you connect Canvas.
• OpenAI, through Vercel's AI Gateway: writing up lecture recordings, the search index of your library, drawing the picture made for you (from the first letter of your name and, if you choose, your course titles), the Pro read-aloud voice, a second look at a question about a Pencil mark when TypeSafe isn't sure, and reading a figure on the page for a drawing. Those last two can include a picture of the page.
• Cerebras: fast answers, the chat on shared pages, reading a picture of your page or a figure when a question needs it, tidying transcripts and drawing movie steps. For a recording of a meeting, it also receives the meeting's title and the names of the people invited.
• Relace (a United States company): runs DeepSeek's open model for answers on the iPad and the web, reading what you circle on a page, the chat on shared pages, planning for your agents on the Mac, and each night's advice on which shapes of answer work. It receives the text you ask about, the page or transcript around it, and, on the iPad, pictures of the page with your handwriting and the strokes you drew. It holds these in memory only, while it works and briefly in a cache that speeds up similar requests. It doesn't write them to disk or train on them, and keeps only records without your content, such as counts and times, for billing, security and running its service. We send nothing to DeepSeek, the company.
• ElevenLabs (United States): the narration voice of Pro movies, and timing the captions of movies. It receives the movie's narration script and the finished movie file, never your account details, your email or recordings of your voice. Not used for students under 18.
• Groq: writing up lecture recordings.
• Supermemory: remembering context, so answers can draw on your library. It receives the text of your library's files, your questions, so it can search them, the preferences you tell Dray and, for adults, your study sessions.
• TypeSafe: reading your school's pages when you sync Canvas, to decide what to open next; and, through Vercel's AI Gateway, deciding whether something you said or marked is meant for Dray and what kind of answer it needs. For that it receives your words, your last few questions and answers, your saved preferences, what Dray remembers about you and the passage you're reading. For a Pencil mark it receives the mark's shape and, if that isn't enough, pictures of the page and the strokes you drew.
• Vercel: routing requests to the OpenAI and TypeSafe models above, and to Relace when its own route can't answer.

Only when you use them

• Wikipedia, Wikimedia Commons, PubChem and Europe PMC: search words, when Dray finds a picture or a source for an answer. The picture then loads from that site.
• YouTube, Vimeo and Loom: when you embed one of their videos in a note.
• Firecrawl and AnyAPI: on the Mac, only if you add your own key, for reading web pages and finding images.
• Google or Apple: on usedray.com/web, your browser's own speech recognition hears what you say.
• ChatGPT, Claude, Claude Code and Codex: if you connect one to Dray, it sees what you allowed.

Changes to this list

We update this page when we add or remove a service. Questions: [email protected].