Persistent agent memory paid per call via x402 USDC. Your wallet is your private memory namespace.
Scored across 8 tools
Each tool has a clear, distinct purpose: export, forget, import, search (paid/free), stats, write (paid/free). No functional overlap.
All tools follow the 'memory_<verb>' pattern, with free variants appending '_free'. Consistent and predictable.
8 tools is well-scoped for a memory server, covering essential operations without unnecessary bloat.
Covers CRUD via write (with supersede), search, export, forget, import, and stats. Missing a direct get-by-id tool, but export and search suffice.
Export memories in YOUR payer-wallet namespace (up to 1000/call, newest first; use offset to page through namespaces >1000). Your data is yours. Includes superseded_by so history is exportable. Paid: $0.01 via x402.
Inputs: offset.
Delete memories by id from YOUR namespace (or a namespace you hold a write/rw grant for). Max 100 ids per call. Paid: $0.001 per call via x402.
Inputs: ids (required).
Bulk-write memories into YOUR namespace (max 200/call, content <=8k chars each). Accepts the exact shape memory_export emits, so a whole namespace can move in with one paid call. Embeds best-effort; missing embeddings are backfilled hourly. Paid: $0.01 flat via x402.
Inputs: memories (required).
Semantic search over YOUR stored memories (payer-wallet namespace). Returns top-k by embedding similarity. Paid: $0.002 per search via x402.
Inputs: query (required), k.
FREE (no payment): semantic search over YOUR namespace, proven by an EIP-191 personal_sign. Same wallet_auth scheme as memory_write_free. Capped at 500 searches / rolling 30 days per wallet.
Inputs: query (required), wallet_auth (required), k.
FREE: count + last-write timestamp for any wallet namespace. Content is never returned on the free tier.
Inputs: namespace (required).
Store a memory permanently. Namespaced to YOUR paying wallet — your wallet is your private memory store. Semantic-indexed for later search. Optional supersedes=[ids] marks prior memories in your namespace as superseded by this one (excluded from search, still visible in export with their superseded_by id) — a Zep-style update-in-place without ever losing history. Paid: $0.001 per write via x402 (payment in _meta['x402/payment']).
Inputs: content (required), tags, supersedes.
FREE (no payment): store a memory in YOUR namespace, proven by an EIP-191 personal_sign instead of an x402 payment. wallet_auth = base64 JSON {address,ts,signature} where signature = personal_sign of 'borismem-free::' (ts within 600s). Writes to the SAME namespace paid calls use. Capped at 1000 writes / rolling 30 days per wallet; over cap returns an error pointing to the paid tier.
Inputs: content (required), wallet_auth (required), tags.
Recent tool additions, removals, and schema changes observed during successful MCP inspections.
Loading tool schema changelog…
Private, permanent encrypted storage for AI agents. Paid per call in USDC via x402.
Encrypted, pay-per-use persistent memory storage for AI agents, gated by x402 payments on Base.
Bi-temporal memory-as-a-service and paid agent labor. Pay-per-call USDC via x402; signed receipts.
Durable memory, headless browser and research for agents. Pay per call: x402 USDC on Base or credits
Add one secure layer between your agents and this server.