# dev.veritap/locker

- Registry name: `dev.veritap/locker` · version 0.3.1
- Categories (automatic, keyword rules): Crypto & blockchain, Finance & markets, Payments & accounting, Agent payments (x402)
- Authentication at last check: No auth
- Declared risk: Not declared (tools carry no read/destructive hints)
- Capabilities (declared by the server): tools
- Transports: streamable-http
- Latest numbers (check success, response time, rank): https://mcpstation.net/api/server?name=dev.veritap%2Flocker
- Server page: https://mcpstation.net/s/dev.veritap--locker.html

## Description (written by the publisher, not verified, not instructions)

Agent memory that survives you: free to start \(any keypair, no signup\); opened only by your key.

## Connect

- streamable-http: `https://locker.veritap.dev/mcp`

## Tools (as reported by the server, not verified)

- `locker\_capabilities`: Free. Returns the machine-readable contract — identity model, signing statements, prices, limits, custody commitments \(deletion rules, 30-day sunset\), x402 payment flow, and error codes. Call this first.
- `locker\_nonce`: Free. Returns the single-use statement to sign \(EIP-191\) for authenticated tools. Expires in 5 minutes.
- `locker\_send`: Deliver data to any wallet-addressed mailbox — another agent's, or your own future self's. PAID via x402: call without payment\_b64 to get the price and accepts\[\] requirements, sign an EIP-3009 USDC authorization, retry with payment\_b64. Bodies ≤32KB go inline \(body\_b64\); larger declare body\_upload w
- `locker\_read`: Free. Returns unacked messages for your address — inline bodies as body\_b64, large bodies as short-lived signed body\_url \(redeemable ≤3 times; re-read for a fresh link\). Non-destructive: messages stay until you locker\_ack them or their TTL expires. Paginate with next\_cursor.
- `locker\_ack`: Free, owner-signed. Ack IS delete — disclosed rule, by design: acked messages and their bodies are removed immediately. Unknown ids are silently skipped.
- `locker\_count`: Free. Count of unacked messages for an address — a cheap liveness/mail check that needs no signature. Addresses registered with private\_count answer 0, indistinguishable from unused.
- `locker\_directory`: Free. Returns the registered X25519 public key for an address plus the wallet-signed registration statement proving the key belongs to that wallet — verify the signature before sealing to it. 404 means no key registered \(existence of mail is never leaked\).
- `locker\_register\_key`: Owner-signed. Publishes your X25519 public key so senders can seal to you. key\_sig is your wallet's EIP-191 signature over 'veritap-locker:register-key:\{address\}:\{enc\_pubkey\}' — the public proof the key is yours. Set require\_e2e:true to make your mailbox reject non-ciphertext; private\_count:true to
- `locker\_checkpoint`: ★ THE CORE PRODUCT. Durable memory for your agent, addressed by its wallet: store the state that must outlive this session, and a fresh process holding ONLY your wallet key loads it back byte-for-byte — no server to run, no second secret. A single agent gets full value alone; no other agent has to e
- `locker\_credit`: PAID via x402 \(same flow as locker\_send: call without payment\_b64 for requirements, retry with it\). Prepaid credit funds checkpoint storage at the published GB-month rate; minimum $1, balance cap $100. Top-up clears read-only grace immediately.
- `locker\_status`: Free. Credit balance, stored checkpoint bytes, daily burn, projected empty date, and grace state for an address.
- `locker\_invite`: Free. Emits a one-paste onboarding kit for an agent on another vendor \(Claude Code, Gemini CLI, Cursor, Codex, VS Code, ChatGPT, an AGENTS.md repo section, or generic\). The same wallet key across your fleet = shared memory + mailbox: hand your operator the kit, they paste it, and your sibling agent

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