Crypto Wallet Development for Web3 Products

Which crypto wallet model fits your product?

A wallet build should begin with the custody model, target user and primary transaction—not with a screen list. These choices determine the account model, permissions, backend responsibilities and recovery experience.

A custodial product also needs a regulatory classification review with your counsel before launch. We do not substitute for legal advice. For products that need a broader interface or connected on-chain features, compare the wallet scope with dApp development and Web3 development.

Bring a short product brief, target user, preferred custody model and priority user journey to the first discussion. If the model is undecided, we can document the decision and its consequences in the Launch Spec before implementation begins.

How do key management and chain integrations shape the build?

Key management defines what the wallet can safely do and what the user must understand. Chain and transaction requirements then set the integration work, testing surface and operational dependencies.

• List supported networks and the reason each one matters to users.
• Map account creation, connection, signing, sending and recovery as applicable.
• Identify whether users need token transfers, swaps or other transaction types.
• Record which actions happen in the client and which require backend services.
• Specify what should be logged, monitored and surfaced when a transaction fails.

For a non-custodial wallet, the design must make signing intent and recovery choices understandable. For a custodial wallet, define account access, key controls and service operations before finalizing the interface. Neither approach is a shortcut around security work; they create different responsibilities.

The integration plan should name required network connections, transaction states, error handling and test conditions. If the wallet depends on a custom asset or protocol, coordinate the relevant token creation and deployment and smart contract development scopes. This gives engineering one agreed source of requirements rather than separate assumptions across teams.

What does a wallet development project deliver?

A wallet project delivers an agreed product scope, working software and the technical handover needed for the next release. The exact package follows the chosen wallet type and target platform.

• Product and flow specification covering custody, accounts and priority user journeys.
• Interface design for the selected client, such as a browser extension, mobile product or Telegram Mini App.
• Implementation of agreed wallet, chain and transaction integrations.
• Backend services and monitoring where the product requires them.
• Security review preparation, including technical materials and identified review areas.
• Testing notes, deployment support and handover documentation in the agreed scope.

We separate implementation from independent audit work. Audit preparation helps organize the codebase and review materials; it is not an audit certificate. For a Telegram-based product, align wallet functions with the wider Telegram bot and mini app development scope. For a dedicated phone application, define the client requirements alongside Web3 mobile app development.

Before kickoff, confirm which deliverables are required for the first release and which can wait. This is the simplest way to keep the initial build focused without hiding later dependencies.

How does a wallet project move from brief to release?

A wallet project moves through product definition, technical planning, implementation, verification and handover. Each stage closes a specific decision before the next stage expands the work.

1. Define the product. We collect the custody model, target users, platform, chains and priority flows in the Launch Spec.
2. Map the integrations. The Channel Matrix records client surfaces, network connections, backend needs and external dependencies.
3. Build in agreed milestones. The team implements the approved flows and shares a Run Log with completed work, open decisions and blockers.
4. Verify the release scope. We test agreed user journeys, transaction states and integration behavior, then organize security review preparation.
5. Hand over the build. The Readout summarizes delivered scope, known dependencies and the next product decisions.

Timing follows the scope: a focused MVP with a narrow set of flows is different from a production wallet with multiple clients, chains and backend services. We set milestones after the Spec Review, once dependencies and acceptance criteria are visible. Ask for a milestone plan that names what can be demonstrated at each handoff, what access the team needs and who approves product decisions.

What should you confirm before releasing a wallet?

A release plan should identify external approvals and service dependencies before the product is ready to ship. Those items affect launch readiness even when the application code is complete.

• Confirm the custody model and have counsel review the regulatory classification of custodial features.
• Verify that required chain services, app distribution routes and account flows are available for the intended release.
• Prepare user-facing explanations for signing, recovery and transaction status.
• Assign an owner for monitoring and operational response after launch.

Platform providers control their own access, review decisions and service availability; chain conditions and external integrations can also affect transaction behavior. We can deliver the agreed implementation and prepare review materials, but cannot decide a provider’s approval or promise that every transaction will complete under changing external conditions.

For a clean kickoff, send us your product brief, preferred custody model, target platform, chain requirements and any existing technical documents. AEOTech will review the inputs, flag unresolved scope decisions and return a Launch Spec for approval before development starts.

Prices

Starting prices in USD. Custom bundles and volume discounts on request. Payment in USDT, USDC, BTC, ETH, SOL, TON or your project token.

How it works

1. Share the product briefSend the target user, wallet type if known, platform and primary user journey. Include existing designs or technical documents if available.
2. Review the scopeWe use a Spec Review to confirm custody, chain, transaction and backend requirements, then record open decisions in the Launch Spec.
3. Approve the integration planConfirm client surfaces, external dependencies and acceptance criteria in the Channel Matrix before implementation begins.
4. Build and verifyWe implement agreed milestones and share a Run Log that tracks completed work, decisions and blockers.
5. Handover the releaseReview the delivered scope, testing notes and next actions in the Readout, including security review preparation where included.