Sovereign memory for AI agents – persistent state with cryptographic receipts

Memory Spine — My AI Remembers | Sovereign Memory for AI Agents My AI Remembers. Finally. An AI that doesn't forget you. Sovereign memory with cryptographic receipts. Every state transition is receipted. Nothing gets silently overwritten. My AI remembers. My AI keeps track. My AI proves its work. Get API Key → Read Docs 🔗 Hash-Chained Entries Every memory entry chains to the previous via SHA-256. Tamper with one, break the chain. Immutable by design. 📜 Cryptographic Receipts Every store operation returns a verifiable receipt. Prove what your agent knew at any point in time. 🔄 Deterministic Recovery Replay from any checkpoint. Your agent wakes up with full context, every time. No drift, no loss. 🔐 Sovereign Storage Your data stays yours. Self-host or use our infrastructure. Export anytime. No lock-in. ⚡ Sub-10ms Writes Fast enough for real-time agents. Append-only architecture means no read-modify-write overhead. 🏛️ Compliance Ready Built-in audit trails for regulated industries. Every memory operation is logged and verifiable. The Problem We Solve ✗ Typical AI Memory Context windows overflow and truncate Embeddings drift over time State gets silently overwritten No proof of what agent "knew" Recovery is guesswork Compliance teams can't audit ✓ Memory Spine Unlimited append-only storage Hash-chained immutability Nothing silently changes Cryptographic receipts prove state Deterministic checkpoint recovery Full audit trail for compliance How It Works 1 Store POST state to the API. Get a receipt back. 2 Chain Entry hashes to previous. Chain grows. 3 Verify Check any entry. Prove chain integrity. 4 Recover Replay from checkpoint. Full context restored. Your AI Makes Promises. Make It Prove Them. Your AI says it will do things. Memory Spine makes it prove it. Obligations are cryptographically recorded commitments that your agent can evidence later. ✗ Without Obligations ✗ Agent says "I'll follow up tomorrow" ✗ No record of the commitment ✗ Agent forgets on next session ✗ No way to prove it happened ✓ With Memory Spine ✓ Agent calls obligate() ✓ Commitment is cryptographically recorded ✓ Agent recalls obligations on wake ✓ Can call evidence() to prove completion Built for AI Agents Auto-provision, discover capabilities, store your first memory in 60 seconds. 🤖 Auto-Provision POST to /v1/provision — get an API key without human intervention 🔍 Discovery /.well-known/six-memory.json tells agents what's available 📊 Usage Explainer Agent can explain value to human when upgrade needed Three Lines to Memory # Python SDK — pip install sovereign-memory from sovereign import auto_connect # Auto-provision if no key, connect to Memory Spine spine = auto_connect() # Store a memory receipt = spine.store({ "context" : "user prefers dark mode" , "label" : "preference" }) # Make a promise (obligation) obligation = spine.obligate({ "promise" : "Follow up with user tomorrow" , "due" : "2026-02-17T09:00:00Z" }) # Later: Prove you fulfilled it evidence = spine.evidence(obligation.id, { "action" : "Sent follow-up email" , "proof" : "email_id_xyz" }) Simple, Transparent Pricing Start free. Scale as your agent grows. View Pricing → Ready to Give Your Agent Memory? Get your API key in 30 seconds. Free tier available. Get Started Free →