Your AI knows you.
Nobody else does.
ApertoMemory is an open format for AI memory: everything your assistant has learned about you, sealed in a file that is yours - encrypted with your keys, signed, portable to any compatible tool. Switch AIs and it still remembers you.
Each cell is one byte of a real sealed memory from the format's test vectors - a user preference, signed and encrypted. This grid is everything a storage server ever sees of your memory.
$ amem export my-memory.amem # on your old machine $ amem import my-memory.amem # on the new one ✓ 6 objects imported - all signatures verified
Memory is the new lock-in.
Every AI tool builds a memory of you inside its own walls. Switching tools destroys it - a lock-in that operates on your personal data, not on price. ApertoMemory makes memory a thing you own and carry. Other portability efforts move your memory in cleartext; ApertoMemory never does.
Encrypted before it leaves your device
Content, authorship, and semantic timestamps are sealed client-side. A sync server is a blind blob store: it cannot read, index, or correlate what it holds.
Every memory proves who wrote it
Objects are signed inside the encryption. Imported third-party memories are cryptographically distinguishable from your own - a built-in defence against persistent prompt injection.
Your whole memory in one file
Export everything as a single .amem file - a complete vault
fits in kilobytes. Import it into any compatible tool and every signature
verifies.
A protocol, not a product
A CDDL schema, machine-readable test vectors, an MIT reference
implementation, and an IETF Internet-Draft
(draft-ferro-apertomemory). Anyone can implement it;
no company controls it.
Seal. Carry. Open.
Sign, then encrypt
A memory is signed with your Ed25519 key, then encrypted under a single-use key wrapped to your identity. Keys derive from one passphrase; per-scope keys keep your coding tool out of your personal memories.
One file, anywhere
Export your entire memory as one .amem
file. New device, new AI tool - with your passphrase, everything opens.
Your AI already knows you
Through the MCP adapter, Claude Desktop and Claude Code read your vault directly. Import on a fresh machine, ask a question - the answer already fits you.
Install in ten seconds.
# install - CLI: amem, format: .amem $ pip install apertomemory # with the MCP adapter for Claude Desktop / Claude Code $ pip install "apertomemory[mcp]"
Building a compatible tool?
Start from the CDDL schema
and the test vectors.
If your implementation opens testvector-001 and verifies its signature, you are interoperable.
Questions and spec review belong in
the issues.