desktop/docs/wallet-hips-alignment.md

Wallet ↔ HIPs Alignment Plan

Status: Draft · Date: 2026-05-31 · Scope: align the Hanzo Desktop crypto wallet (and the node APIs it depends on) to HIP-0001 ($AI token), HIP-0025 (Bot Agent Wallet & RPC billing), and HIP-0018 (payment / invoice). Supporting: HIP-0048 (DID), HIP-0026 (IAM balance ledger), HIP-0027 (KMS), HIP-0005 (PQ).

This is a planning document. No code is changed by this plan. It enumerates what must be added/changed, who owns each piece (node vs. desktop), and a phased rollout.

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1. Where we are today (ground truth)

Desktop (apps/hanzo-desktop)

• Page: src/pages/crypto-wallet.tsx — a generic Base-Sepolia EVM wallet. Shows Wallet Address, Network, and an Assets card hardcoded to two rows: ETH and USDC. Example address in the wild: 0x9F22….
• Components: src/components/crypto-wallet/
  • context/wallets-context.tsx — Zustand store; views are Main / RegularCreate / RegularMnemonic / RegularPrivateKey / ViewSecretRecoveryPhrase. No "agent wallet", no "billing", no "DID" views.
  • utils.ts — truncateAddress, formatBalanceAmount(amount, decimals=18) (BigInt, generic), getBasescanAddressUrl (hardcoded basescan / sepolia.basescan).
• Network is hardcoded to NetworkIdentifier.BaseSepolia in every create/restore form (crypto-wallet.tsx lines ~716, 810, 923, 1078). The network <Select> only offers base-sepolia + a disabled "coming soon".
• Explorer link (etherscanLink, lines ~207-219) only knows BaseSepolia → sepolia.basescan.org, else basescan.org.
• Data model / API client: libs/hanzo-message-ts/src/api/wallets.ts
  • enum NetworkIdentifier { BaseSepolia, BaseMainnet, EthereumSepolia, EthereumMainnet, ArbitrumSepolia, ArbitrumMainnet, Anvil } — no Hanzo / chain 36963.
  • REST surface: POST /v2/create_local_wallet, /v2/restore_local_wallet, /v2/restore_coinbase_mpc_wallet, GET /v2/list_wallets, GET /v2/get_wallet_balance.
  • GetWalletBalanceResponse is a free-form map keyed by asset symbol (ETH, USDC, …) → { amount, asset{asset_id,contract_address,decimals,network_id}, decimals }.
  • Wallet model is LocalEthersWallet { type, data: { id, network, address, private_key, public_key, mnemonic? } }. No safeAddress, no did, no derivationPath, no chainId.
• State hooks: libs/hanzo-node-state/src/v2/{queries,mutations}/…Wallet… — thin React-Query wrappers over the above. No billing/credits/invoice/DID hooks exist.

Node (/home/z/work/hanzo/node)

What already exists (reusable):

• Chain 36963 is known. hanzo-libs/hanzo-mining/src/ledger.rs: pub const AI_MAINNET_ID: u32 = 36963;. hanzo-mining/src/evm.rs defines per-chain EvmConfig { chain_id, token_symbol, token_decimals: 18, … } for Hanzo (36963 / testnet 36964), Zoo (200200/200201), Lux. Bridge ("Teleport") in hanzo-mining/src/bridge.rs.
  • ⚠️ Token symbol mismatch: evm.rs uses token_symbol: "HAI"; mining contract addrs 0x369000…aAAI. HIP-1 mandates user-facing symbol $AI (billing currency code "AI"), 18 decimals, 1B cap. The repo's L1 token is also called HANZO. These must be reconciled to one canonical $AI (see §3).
• DID library: hanzo-libs/hanzo-did/src/did.rs — DID { method, id, … }, constructors DID::hanzo, DID::lux, hanzo_eth, hanzo_sepolia, omnichain variants (get_omnichain_variants, is_same_entity), parse/format. This is the seed for HIP-25/HIP-48 did:hanzo:. Not yet wired to wallets, and does not yet emit W3C DID Documents / MLDSAVerificationKey2025.
• Wallet impls: hanzo-bin/hanzo-node/src/wallet/ — local_ether_wallet.rs, coinbase_mpc_wallet.rs, wallet_manager.rs, wallet_traits.rs. Persisted via hanzo-libs/hanzo-db-sqlite/src/wallet_manager.rs (single-row hanzo_wallet table, opaque JSON blob).
• Payments: x402 stack hanzo-libs/hanzo-runtime/src/functions/x402/{create,verify,settle}_payment.rs, payment_requirements.rs. Agent-payment managers hanzo-bin/hanzo-node/src/network/agent_payments_manager/{my,external}_agent_offerings_manager.rs. Invoice store hanzo-libs/hanzo-db-sqlite/src/invoice_manager.rs + schema hanzo-libs/hanzo-messages/src/schemas/invoices.rs.
  • ⚠️ The existing Invoice is tool-barter shaped (provider_name, requester_name, hanzo_offering, usage_type_inquiry, status ∈ {Pending,Paid,Failed,Processed,Rejected}). It is not the HIP-18 fiat/credits/Stripe invoice (no USD line items, no stripe_price_id, no credits).
• Network enums are Base/EVM-only and must gain Hanzo:
  • hanzo-messages/src/schemas/wallet_mixed.rs → enum NetworkIdentifier { BaseSepolia, BaseMainnet, EthereumSepolia, EthereumMainnet, ArbitrumSepolia, ArbitrumMainnet, Anvil }.
  • hanzo-messages/src/schemas/x402_types.rs → enum Network { BaseSepolia, Base, AvalancheFuji, Avalanche }. No Hanzo 36963 in either.

Gap summary

HIP	Mandated	Desktop today	Node today
HIP-1	$AI, 18 dec, chain 36963	ETH/USDC only, BaseSepolia	chain known; symbol "HAI"/"HANZO" not unified to $AI; not in wallet enums
HIP-25	did:hanzo: + Safe 1-of-2, path m/44'/60'/0'/0/<idx>, 24-word BIP-39, metered RPC billing	none	DID lib exists; no Safe; no derivation/agent-index; no RPC billing meter
HIP-18	credits (1 cr=$0.001), IAM balance, Stripe + $AI top-up, invoices	none	tool-barter invoices only; no credits/IAM/Stripe

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2. Target architecture (responsibility split)

Principle (from the HIPs): the node owns keys, signing, chain I/O, and on-chain settlement; the desktop is a thin, read-mostly client that renders balances/credits/invoices and triggers node-mediated actions. Secrets/keys never reach the renderer (HIP-27); balances of record live in IAM (HIP-26).

┌──────────────────────────── Desktop (React renderer) ────────────────────────────┐
│ crypto-wallet.tsx: AI/USDC/LUX assets · Agent Wallet (DID + Safe) · Credits ·     │
│ Invoices · Top-up (Stripe / $AI) · RPC usage meter                                │
│   └─ calls only: hanzo-message-ts api/* → node REST (Bearer api_v2_key)           │
└───────────────────────────────────────────────────────────────────────────────────┘
                                  │ HTTPS (localhost / node_address)
┌──────────────────────────────── Node (Rust / Tauri sidecar) ─────────────────────┐
│ wallet/* : HD derivation m/44'/60'/0'/0/<idx>, Safe 1.4.1 deploy, EIP-1271 sign   │
│ hanzo-did : did:hanzo: doc gen, registry resolve, VC issue (HIP-48)               │
│ mining/evm+bridge : $AI on 36963, Teleport, balances                             │
│ x402 + agent_payments_manager + invoice_manager : RPC metering & settlement       │
│   └─ talks to: IAM (hanzo.id, balance), KMS (kms.hanzo.ai, keys), DID (did.hanzo) │
└───────────────────────────────────────────────────────────────────────────────────┘
        │ IAM HIP-26 (balance of record)   │ KMS HIP-27 (key custody)   │ chain 36963

Desktop must NOT: hold private keys in JS, mutate IAM balances directly, talk to Stripe directly (PCI SAQ A — checkout is Stripe-hosted, opened via node-provided URL), or sign on-chain in the renderer.

Desktop MAY: read balances/credits/invoices/usage, render DID + Safe address, open hosted checkout URLs, and submit "create agent wallet / set auto-recharge / top-up intent" requests that the node fulfills.

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3. HIP-0001 — $AI token denomination & decimals

3a. Canonicalize the token (node, blocking)

• Pick one canonical identity and use it everywhere: name AI, symbol $AI, currency code "AI", 18 decimals, chain 36963. Reconcile evm.rs token_symbol: "HAI" and the repo's HANZO L1 name to this. (Treat HANZO/$AI as the same 1B-supply asset; expose it to users as $AI.)
• Add a single source-of-truth constant module (node) e.g. AiToken { symbol:"AI", name:"AI", decimals:18, chain_id:36963, contract: <TBD-at-deploy> }, consumed by mining/evm, wallet balance, and x402 asset descriptors.

3b. Add Hanzo network to the wallet enums (node, blocking)

• wallet_mixed.rs::NetworkIdentifier: add HanzoMainnet (36963) and HanzoTestnet (36964). Provide chain_id() + Display ("Hanzo", "Hanzo Testnet") + RPC URL resolution.
• x402_types.rs::Network: add Hanzo (36963) + HanzoTestnet, with chain_id() and asset/pay_to plumbing so x402 settlement can target 36963.
• AssetType (wallet_mixed.rs): add AI native asset for Hanzo networks (mirrors how ETH/USDC map today). Keep USDC (bridged) and add LUX (bridged) per HIP-25 accepted tokens.

3c. Surface $AI in balances (node + desktop)

• Node GET /v2/get_wallet_balance already returns a symbol-keyed map; ensure it returns an AI entry { amount (wei string), decimals:18, asset:{asset_id:"AI", contract_address, network_id:"hanzo-mainnet"} } when the wallet network is Hanzo.
• Desktop crypto-wallet.tsx Assets card: add an $AI row first (icon, "Hanzo AI", symbol $AI), formatted with formatBalanceAmount(walletBalance?.AI.amount, 18). ETH row becomes conditional (only on EVM L1/testnets); USDC + LUX rows shown when present.
• Desktop utils.ts: add an AiTokenIcon/asset registry and a getExplorerUrl(address, network) that maps Hanzo → the 36963 explorer (TBD, e.g. explorer.hanzo.network) instead of always basescan. Replace the inline etherscanLink memo accordingly.
• Desktop network <Select> (create/restore forms): add Hanzo (and Hanzo Testnet) options; make Hanzo Testnet the default for dev builds instead of base-sepolia.

3d. i18n / labels (desktop)

• Add $AI strings (asset name, denomination helper "1 $AI = …") to hanzo-i18n. Do not invent a USD peg for $AI in the UI — USD valuation of $AI only appears in the credits/top-up flow via the HIP-8 oracle the node provides.

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4. HIP-0025 — Bot Agent Wallet & RPC billing

4a. Agent wallet provisioning (node, primary)

Node gains an agent-wallet service that, per workspace/agent:

• Derives an EOA from a 24-word BIP-39 workspace seed at m/44'/60'/0'/0/<agent-index> (secp256k1). (Today local_ether_wallet.rs exists but is not agent-indexed; add deterministic per-agent index + 24-word default.)
• Deploys / references a Gnosis Safe v1.4.1, default threshold 1-of-2 (agent EOA + workspace owner), on chain 36963. Store safeAddress.
• Mints a did:hanzo:<agent-id> (extend hanzo-did) and assembles the DID Document (@context incl. https://hanzo.ai/ns/agent/v1; verificationMethod.type = EcdsaSecp256k1VerificationKey2019; blockchainAccountId = eip155:36963:0x…; services AgentRPCService, SafeWallet endpoint safe:36963:0x…, plus AgentBillingSchedule). Signing delegated to KMS (HIP-27); private key never leaves KMS.
• Persists an AgentWalletConfig { address?, safeAddress?, chain:"hanzo", chainId:36963, derivationPath } — extend the SQLite wallet blob / add an agent_wallet table.

New/extended node REST (mirror HIP-25 gateway methods):

• GET /v2/agent/:agentId/did (→ agent.did.get), GET /v2/agent/:agentId/wallet (→ agent.wallet.get), GET /v2/agent/:agentId/identity (full).
• POST /v2/agent/:agentId/wallet (create; admin scope) deploying Safe + DID.
• Billing: GET /rpc/:agentId/billing, GET …/billing/balance, GET …/billing/usage, POST …/billing/prepay.

4b. RPC metering & settlement (node, primary)

• Implement the rate schedule as a DID service AgentBillingSchedule (e.g. chat.send 0.001 AI/req, agent 0.00001 AI/token, agent.wait 0.01/req, browser.request 0.005/req) and a free tier (100 req/day, 10k tok/day; free methods health, agent.identity.get, agent.did.get).
• Meter calls, batch-settle hourly (minAmount 0.1 AI) to the agent Safe on 36963; emit RPCSettlement(agent, consumer, amount, requestCount, periodStart, periodEnd). This extends the existing agent_payments_manager + x402 settle_payment rather than replacing them.
• Insufficient balance → HTTP 402 (consistent with HIP-18 metering).

4c. Desktop UI for agent wallet (desktop)

• New "Agent Wallet" section/tab in crypto-wallet.tsx (and/or a dedicated route reachable from the existing "Explore Network Agents" link). Render per agent:
  • did:hanzo:<id> (copyable), Safe address + threshold badge ("1-of-2"), derivation path, chain (Hanzo 36963), accepted tokens (AI/USDC/LUX).
  • Billing panel: current $AI billing balance, free-tier remaining (req/day, tok/day), live usage meter by method (from …/billing/usage), and a Prepay button (calls …/billing/prepay).
• Extend wallets-context.tsx with views AgentWallet, AgentBilling, AgentPrepay. Add AgentWalletConfig + billing types to hanzo-message-ts/src/api/ and React-Query hooks under hanzo-node-state/v2/{queries,mutations} (useGetAgentWallet, useGetAgentDid, useGetAgentBilling, useAgentPrepay, useCreateAgentWallet).
• Update the create-wallet model type (createLocalWallet/types.ts and friends) so a wallet can carry chainId, safeAddress, did, derivationPath without breaking existing local wallets.

4d. DID display & PQ (desktop + node, follow-on)

• Show the DID's alsoKnownAs siblings (did:lux:, did:ai:) read-only. (HIP-48 omnichain; node already has get_omnichain_variants.)
• Per HIP-48/HIP-5 PQ transition, the DID Doc SHOULD gain an MLDSAVerificationKey2025 key by 2027; desktop only needs to render a "Post-Quantum: enabled/pending" badge from the DID Doc — key handling stays in node/KMS.

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5. HIP-0018 — Payment / credits / invoices

Distinction: HIP-25 billing is $AI-denominated agent RPC settled on-chain to a Safe. HIP-18 is USD credits (1 credit = $0.001) for platform/model usage, with IAM (HIP-26) as the sole balance source of truth, topped up via Stripe (fiat) or $AI (crypto). The wallet UI must present both clearly and not conflate them.

5a. Credits & balance (node bridges to IAM; desktop reads)

• Node exposes (proxying / mirroring the HIP-18 /v1/billing/* + HIP-26 IAM endpoints) at least: GET /v2/billing/balance, …/transactions, …/usage, …/subscription, and creates checkout via …/checkout (Stripe-hosted) and …/checkout/crypto ($AI on 36963).
• Balance is read from IAM (JWT claims balance or /api/get-account); node/Commerce only ever add via POST /api/add-balance + POST /api/add-transaction. Desktop must treat balance as read-only and never compute/mutate it locally.
• Crypto top-up flow ($AI → credits): per-user deposit address → Transfer on 36963 → USD via HIP-8 TWAP oracle → same add-balance path. Desktop just shows "pending confirmations (1 conf <$1k / 6 conf ≥$1k)" and resulting credits.

5b. Desktop credits/billing UI (desktop)

• New "Credits & Billing" card in crypto-wallet.tsx rendering the HIP-18 balance schema: { balance, balance_usd, tier, credits_included, credits_used, credits_remaining, period_start, period_end, auto_recharge:{enabled,threshold,amount} }.
• Top-up dialog with two paths: Card (opens Stripe-hosted checkout URL returned by node — no card data in app, PCI SAQ A) and $AI (shows deposit address/QR for chain 36963). Pricing tiers with bonus ($5→5,000 … $1,000+→25%+) shown read-only.
• Auto-recharge toggle (threshold/amount) → POST to node billing.
• Subscription row (Free/Pro/Team/Enterprise) using stripe_price_ids; subscribe/cancel via node → …/subscribe (POST/DELETE).
• Insufficient balance anywhere → surface the node's HTTP 402 as a clear "Add credits" prompt.

5c. Invoices (node model change + desktop list)

• ⚠️ The current node Invoice (tool-barter) does not match HIP-18. Add a HIP-18 invoice model (or a BillingInvoice variant) carrying: issuer block ("Hanzo AI Inc., 548 Market St, Suite 45000, SF, CA 94104"), line items (subscription / credit purchase / overage), usage-by-service summary, open/close balance, payment method (card last-4 | wire ref | $AI tx hash), and integrity:"sha256:…" hash-chain. PDFs stored in MinIO (HIP-32); node returns a download URL.
• Node endpoints: GET /v2/billing/invoices, GET /v2/billing/invoices/:id (returns metadata + PDF URL).
• Desktop: re-enable a "Recent Activity"/Invoices list (the commented-out block at crypto-wallet.tsx ~382-419 is the placeholder) → render transactions (/v2/billing/transactions) and a downloadable invoice list. Add useGetInvoices / useGetTransactions hooks.

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6. Node-vs-Desktop responsibility matrix

Capability	Node (Rust)	Desktop (React)
$AI constant/decimals/chain 36963	Owns (AiToken, mining/evm, enums)	Reads symbol/decimals via balance API
HD derivation m/44'/60'/0'/0/<idx>, 24-word seed	Owns (wallet/*, KMS)	Never sees keys; shows path read-only
Gnosis Safe 1.4.1 deploy / 1-of-2 / EIP-1271 sign	Owns	Shows Safe addr + threshold badge
did:hanzo: doc, registry resolve, VC, PQ key	Owns (hanzo-did, DID svc, KMS)	Renders DID + siblings + PQ badge
RPC metering, free tier, hourly settle, RPCSettlement	Owns (agent_payments_manager, x402)	Renders usage meter + prepay button
Credits balance (source of truth)	Bridges to IAM; add-only	Read-only display
Stripe checkout / subscription	Owns (returns hosted URL)	Opens URL; no card data
$AI crypto top-up + TWAP oracle	Owns (deposit addr, confs, oracle)	Shows deposit addr/QR + conf status
HIP-18 invoices + PDF (MinIO)	Owns schema + storage	Lists + downloads
Secrets/keys	KMS (HIP-27)	Never in renderer

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7. Phased rollout

Phase 0 — Token canonicalization (node, blocking, ~small). Unify $AI (symbol/decimals/chain) in node constants; reconcile "HAI"/"HANZO". Add HanzoMainnet/HanzoTestnet to NetworkIdentifier and Hanzo to x402 Network, with chain_id()/RPC/explorer. Add AssetType::AI. No UI yet. Exit: get_wallet_balance can return an AI entry on a Hanzo wallet; existing Base flows unaffected.

Phase 1 — $AI in the existing wallet (desktop, HIP-1). Add the $AI asset row (first) + icon + explorer mapping in crypto-wallet.tsx/utils.ts; add Hanzo network options to the create/restore selects and default dev builds to Hanzo Testnet. Extend wallet types with optional chainId/did/safeAddress/derivationPath (non-breaking). Exit: user can create/view a Hanzo $AI wallet end-to-end.

Phase 2 — Agent wallet read path (node + desktop, HIP-25 part 1). Node: per-agent HD derivation + DID Doc generation (signing via KMS) + GET /v2/agent/:id/{did,wallet,identity}. Desktop: "Agent Wallet" view rendering DID, Safe (may be undeployed placeholder), path, accepted tokens. Exit: every default team preset (Vi, Dev, …) shows a did:hanzo:<preset> and (pending) Safe.

Phase 3 — Safe + RPC billing (node + desktop, HIP-25 part 2). Node: deploy Gnosis Safe 1.4.1 (1-of-2) on 36963; implement metering + free tier + hourly settlement (RPCSettlement) on the agent_payments/x402 path; …/billing/{balance,usage,prepay}. Desktop: billing panel + usage meter + prepay; 402 handling. Exit: metered RPC accrues and settles to the Safe; UI reflects balance/usage.

Phase 4 — Credits & Stripe top-up (node↔IAM + desktop, HIP-18 part 1). Node bridges balance reads to IAM and exposes /v2/billing/{balance,transactions,usage,subscription,checkout}; Stripe-hosted checkout + subscription. Desktop: Credits & Billing card, Card top-up (hosted URL), auto-recharge, subscription. Exit: user buys credits via card; balance (from IAM) updates; subscriptions work.

Phase 5 — $AI crypto top-up + invoices (node + desktop, HIP-18 part 2). Node: …/checkout/crypto deposit addresses on 36963 + TWAP oracle → add-balance; HIP-18 invoice model + MinIO PDFs + …/invoices[/:id]. Desktop: $AI top-up (deposit addr/QR + conf status), invoices list/download, re-enable activity feed. Exit: $AI → credits works; invoices downloadable.

Phase 6 — Post-Quantum & hardening (node + desktop, HIP-5/48, follow-on). Node: add MLDSAVerificationKey2025 to DID Docs; 2-of-3 MPC for high-value DIDs; rotate per HIP-27 policy. Desktop: PQ badge, 2-of-3 threshold display. Exit: new DIDs carry a PQ key; UI reflects it.

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8. Concrete change checklist (no code written here)

Node

• hanzo-mining/src/evm.rs: reconcile token_symbol → canonical $AI; add AiToken constant module.
• hanzo-messages/src/schemas/wallet_mixed.rs: NetworkIdentifier += {HanzoMainnet, HanzoTestnet}, AssetType += AI; add chain_id().
• hanzo-messages/src/schemas/x402_types.rs: Network += {Hanzo, HanzoTestnet} + chain_id mapping.
• hanzo-bin/hanzo-node/src/wallet/*: agent-indexed HD derivation (24-word, m/44'/60'/0'/0/<idx>), Safe 1.4.1 deploy + EIP-1271, AgentWalletConfig persistence.
• hanzo-libs/hanzo-did/*: W3C DID Document emit (agent/v1 + did/v1 contexts, secp256k1 + optional ML-DSA), registry resolve, VC issue; KMS-delegated signing.
• New billing/metering: extend agent_payments_manager + x402 settle_payment for rate schedule, free tier, hourly batch settle, RPCSettlement event; …/billing/* endpoints.
• IAM bridge: add-balance/add-transaction writers; /v2/billing/* (balance read-only from IAM, checkout, subscription).
• Invoices: HIP-18 BillingInvoice model + MinIO PDF + endpoints. (Keep existing tool-barter Invoice separate.)
• Routes: register all new /v2/agent/*, /rpc/:id/billing*, /v2/billing/* in the api_v2 handlers/command list.

Desktop

• libs/hanzo-message-ts/src/api/wallets.ts: add Hanzo to NetworkIdentifier; extend WalletData/LocalEthersWallet with optional chainId/did/safeAddress/derivationPath; add AI to balance typing.
• New libs/hanzo-message-ts/src/api/: agent-wallet.ts, billing.ts, invoices.ts (DID, AgentWalletConfig, BillingBalance, Invoice, rate schedule).
• New libs/hanzo-node-state/src/v2/{queries,mutations}/: getAgentWallet, getAgentDid, getAgentBilling, getBillingBalance, getTransactions, getInvoices, createAgentWallet, agentPrepay, createCheckout, setAutoRecharge, subscribe.
• apps/hanzo-desktop/src/components/crypto-wallet/: utils.ts (AI asset registry, getExplorerUrl), context/wallets-context.tsx (AgentWallet/AgentBilling/AgentPrepay/Credits views).
• apps/hanzo-desktop/src/pages/crypto-wallet.tsx: $AI asset row; Hanzo network options + default; Agent Wallet section (DID/Safe/usage); Credits & Billing card (top-up card+$AI, auto-recharge, subscription); re-enable activity/invoices.
• hanzo-i18n: $AI, agent-wallet, credits, invoice strings.

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9. Open questions / dependencies

• $AI contract address on 36963 is TBD at deployment (HIP-1) — gate Phase 1 mainnet on it; testnet first.
• Explorer URL for chain 36963 (replace basescan) — needs canonical host.
• IAM/KMS/DID service reachability from the node in desktop (localhost) deployments — confirm the node can reach hanzo.id / kms.hanzo.ai / did.hanzo.ai, or ship local/offline fallbacks.
• Token naming HANZO (repo L1) vs $AI (HIP-1) — confirm single canonical user-facing symbol before Phase 0 ships.
• Safe deployment cost/gas on 36963 for every agent/preset — decide lazy (deploy on first settle) vs eager.