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Rhinestone is a smart wallet SDK and crosschain intent API. It combines a modular smart account toolkit with an intent-based transaction engine, giving teams a single integration for deploying wallets and routing transactions across any supported chain.

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Tech Stack

Rhinestone offers three core services:
  • Modular Smart Account toolkit, compatible with all major embedded wallet signers
  • An Intent Engine (Warp) for single- and multi-chain transaction and swap routing
  • A Relayer Market that aggregates solver liquidity for intent execution

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Smart Accounts

Rhinestone provides the onchain infrastructure for smart wallets, including the smart account and modules that extend the wallet with specific features. Core modules include:
  • Passkeys for secure, user-friendly self-custodial key management
  • Session keys for transaction automation and 1-click UX
  • Multi-sig for high-value accounts
  • Social login via embedded wallet integrations
  • Recovery for heightened account security
Use these via the Rhinestone SDK to deploy, configure, and manage smart accounts for your users.

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Intent Engine (Warp)

Warp is Rhinestone’s intent-based transaction service. It aggregates existing crosschain settlement layers through a single solver market, and uses resource locks for fast crosschain execution (sub-2-second fills). Key capabilities:
  • Crosschain transactions: transact on any chain using funds from any other chain, with no manual bridging
  • Swaps: solver-based swaps with zero slippage and MEV protection, or inject your own DEX aggregator
  • Universal gas sponsorship: deposit USDC on Base and sponsor gas, bridging, and swap fees on any supported chain
  • Multi-input intents: combine any number of input chains and tokens in a single signed intent
  • Atomic and deterministic: known output token, zero slippage, guaranteed execution or rollback
  • Human-readable signatures: EIP-712 signing ensures a legible payload regardless of intent complexity
More on Warp.

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Relayer Market

Warp routes intents through a unified Relayer Market that aggregates settlement layers like Across, Relay, and Eco. Solvers in the market supply liquidity, perform swaps, and settle directly onchain — the user intent is routed to the best-placed solver for price and speed. More on the Relayer Market.

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Composability

Rhinestone is designed to meet teams where they are:
  • Signer-agnostic: works with passkeys, external wallets, and any embedded wallet provider (Turnkey, Dynamic, Magic, Privy, and more)
  • Account implementation-agnostic: compatible with all major ERC-7579 smart account implementations and accounts using ERC-7821 for batched execution
  • Modular: extend your smart wallet with custom modules or use existing ones from the ecosystem
  • API-first: use Warp’s intent routing via the REST API without integrating the smart account SDK

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Next Steps

Quickstart

Get started with the SDK

Rhinestone Intents

Deep dive into Warp and how the intent engine works