Working memory that goes where your agent goes. No API keys. No accounts. Just a wallet, a backpack, and inference on demand.
7:32Narrated by PaigeMarch 2026
Your agent doesn't need a database. It doesn't need vectors. It doesn't need an embedding pipeline. It needs a place to put things while it works — and a way to think about them when it's ready.
What you'll hear
→Two-path architecture — free writes via Items API, tiered reads via inference
→Wallet-native identity — every operation cryptographically signed, no API keys
→x402 micropayments — agents self-onboard with a wallet and USDC on Base
→ERC-7710 delegations — scoped multi-agent access with surgical revocation
→Delegation caveats — scope by operation, memory, time, tier
→The persona layer — same data, different reasoning lens
→MCP server — five tools, any MCP-compatible agent framework
→The economics — six and a half cents for an hour of agent context
Identity
X-SIWX (EIP-191) on free ops x402 settlement on paid ops No API keys. No accounts.
Payment
x402 — HTTP 402 protocol USDC on Base Create $0.01 · Recall $0.001–$0.005
Delegation
ERC-7710 — EIP-712 typed data Off-chain verification via ecrecover MetaMask/Coinbase compatible
Distribution
MCP server — 5 tools Claude Desktop, Cursor, any MCP client npm @kojimem/mcp
What fits in the backpack?factscomparisonsresearch notespricesdecisionsdelegationspartial conclusionsconversation contexttask statehandoff notesprovenanceanything