Everything you need to give AI the right context.
Save it as capsules, shape it with Types, reference it anywhere, find it instantly, and keep it private.
Knowledge in small, reusable units.
A capsule is one focused piece of context. Type it yourself, or ask any AI to save it for you — then reuse it forever.
- One idea per capsule — easy to find and reuse
- Created by you or by AI, from any conversation
- Edit anytime; your knowledge stays accurate
- Q3 roadmap confirmed
- API v2 deferred to November
- Pricing review next Monday
Categories that tell AI how to work.
A Type is a category with built-in guidance. Its instructions travel with every capsule inside, so AI handles your content your way.
- Guidance tells AI how to read and write capsules
- Set it once; every capsule in the Type follows it
- AI uses your rules, not its guesses
Always save as bullet points. Keep entries under 5 bullets. Lead with the decision, then the why.
Every capsule in this Type follows these rules.
Pull any capsule into any prompt.
Mention @type/ref in an MCP-connected tool and the full context loads instantly — no copy-paste, no re-explaining.
- Reference capsules in ChatGPT, Claude, Cursor, and more
- Link capsules together to build a knowledge graph
- Switch tools mid-project; your context comes with you
Works in
- ChatGPT
- Claude
- Cursor
- Gemini
- + more
Find the right context, fast.
Search your whole knowledge base by keyword, or let AI search by meaning to surface the capsule you actually need.
- Instant keyword search across every capsule
- AI search understands intent, not just exact words
- Jump straight to the capsule and reference it
- @brand/voiceVoice & tone — warm, concise, expert
- @writing-style/emailHow I write client emails
AI search matches meaning, not just keywords
End-to-end encryption when you need it.
Mark any capsule, Type, or workspace as encrypted. Encryption happens on your device — Symbol only ever sees ciphertext.
- Optional zero-knowledge, AES-256-GCM encryption
- Only you (and those you share with) can decrypt
- Keys never leave your device in plaintext
- Encrypted on your device
- Symbol's servers see only ciphertext
Give your AI better context.
Save it once. Use it everywhere. Free to start, $6 when you outgrow it.