Wallets

Para profile

Nitya Subramanian

Para's Nitya Subramanian demos Para's wallet infrastructure for agentic commerce at Day Zero 06, framed around three problems with agentic payments today: hard wallet UX, plain-text private keys, and missing guardrails. Paramodal turns email verification into a fully functional wallet in seconds. The REST API provisions agent wallets with IP allowlists so a wallet for an OpenWebUI agent on a single Mac mini can only be exercised from that exact IP, then signs messages and raw transactions across Solana, Stellar, EVM, and Cosmos. Para's permissions feature enforces app-wide policies — scopes for transfers and signing, conditions like 'transaction amount < 1', plus distinct bypass and autonomous-with-policy modes for agents — at the MPC cryptography layer rather than in app code. Modular Para clients can be wrapped with x402 or MPP forwarders to slot directly into agent-payment flows.

DFNS profile

Clarisse Hagege & Josh Siegel

Clarisse (co-founder, CEO) and Josh (product) of Dfns introduce Dfns — a developer-first wallet-as-a-service platform that separates the security of the private key from the governance of the assets. Dfns operates a decentralized MPC signer network in secure enclaves so private keys never materialize in memory or on disk — no single point of failure like seed-phrase or multi-sig-HSM setups. The API is chain-agnostic (25 blockchains, 9,000 tokens, new chains in ~3 weeks, new tokens in ~half a day) and built to scale to millions of segregated wallets per customer. A customer demo with Nilos (treasury management) shows how a user signs in and gets a fully functioning EVM wallet in seconds via createAssetAccount (distributed key generation) and initiatePayment, with every transaction subject to Dfns's programmable, API-first policy engine — including 2-of-3-style approvals defined in code rather than in a vendor UI. Pricing is unusual for the custody space: Dfns charges per wallet, per authorized signer, and per policy-engine access — never on AUM or AUC.

Rehive profile

Helghardt Avenant

Helgaard of Rehive demos Rehive — a no-code fintech app builder that sits on top of the application layer of the fintech stack (above Plaid, Synapse, Wyre). For marketplaces (Fiverr, Upwork, Uber-style) looking to bring banking into their ecosystem, Rehive ships a pre-integrated ledger, user management, and an extensions framework — plus three UI surfaces (iOS, Android, web, admin dashboard, merchant portal). The demo walks through a US-oriented project using Rehive\'s Wyre integration for on/off-ramps, fiat and crypto custody, and KYC — producing a production-ready PayPal-like app in 5–10 business days. From the admin dashboard, operators define currencies (each backed by Wyre or their own custodial license), add account types, and manage transactions. A mass-send extension uploads a CSV of recipients and triggers a bulk payout through the Rehive API — paying users into their own branded wallet instead of PayPal. The consumer mobile app includes peer-to-peer transfers, QR scan-to-pay, a rewards/cashback engine, a lightweight in-app merchant marketplace, and a Wyre-backed crypto buy flow. Merchants get their own portal to list products, send invoices, and integrate POS — Rehive ends with a white-label option that hands over the source code for further customization.

Phantom profile

Brandon Millman

Phantom presents their Solana wallet at V-Sum Eleven. Presented by co-founder Brandon Millman, covering token swaps, staking, NFT management, transaction simulation, and phishing protection.

Rainbow profile

Mike Demarais

Rainbow introduces itself as the most accessible Ethereum wallet — built to deserve a spot on your home screen rather than forcing a 30-word seed-phrase gauntlet on new users. The demo tours what makes Rainbow distinctive: auto-discovery of ERC-20 tokens across Ethereum mainnet, Arbitrum, and Optimism merged into a unified view (no chain-switching); a Savings section wired to Compound Finance that auto-swaps any deposited asset into DAI under the hood; Uniswap liquidity-pool positions surfaced with annualized fees; NFTs as first-class citizens including floor prices, trait-based search into OpenSea, a Showcase feature for favorites, and per-wallet public web profiles like rainbowwallet.eth; a swap UI that takes any-to-any input and exposes EIP-1559 custom gas tipping; and WalletConnect as Rainbow's deliberate answer to an in-app dApp browser — connect Rainbow to any web dApp via mobile Safari and bounce back to Rainbow for action approvals.

Casa profile

Nick Neuman & Michael Haley

Casa demos its personal key-manager product for Bitcoin self-custody — a safe, visually-consumer-first way to hold Bitcoin private keys without falling off the "one key, one pool of coins" cliff that has already lost an estimated 4M of Bitcoin\'s 21M total supply. At Casa\'s highest security tier, five keys protect one Bitcoin pool (mobile phone, three hardware wallets, one emergency Casa-held key) under a 3-of-5 multi-sig — losing any one key doesn\'t risk your funds. A separate "checking account" uses a single mobile key for fast spending. The send flow shows the multi-sig in action: the phone signs first, Casa emails a prompt to plug in a Trezor or Ledger for the second signature, and a third hardware approval broadcasts the transaction to Bitcoin\'s network. QR-code-based signing on next-gen hardware wallets will eliminate the email step. Casa\'s replace-a-lost-key flow skips seed-phrase recovery entirely — mark the key compromised, add a new hardware device, and transfer funds with the remaining healthy keys. Premium service tiers offer concierge-style support for high-net-worth holders.