Crypto Wallet Development in London
e10 Infotech is a crypto wallet development company in London building custodial, non custodial, MPC and account abstraction wallets for real users.
Crypto wallet development that people can use without losing everything
A wallet has one job that cannot be got wrong and one job that usually is. It must never leak a key, and it must let an ordinary person send the right amount to the right address without a rehearsal. e10 Infotech Private Limited builds wallets where key handling is engineered properly and recovery does not depend on a phrase written on a napkin in 2021. Transaction previews say what will actually happen, approvals are scoped and revocable, and every irreversible action is confirmed in plain language. Businesses in London come to us when a wallet has to serve customers rather than crypto natives.
What we build
- Non custodial mobile and browser wallets with secure enclave backed key storage
- Multi party computation wallets that split keys across devices and servers
- Smart contract wallets using account abstraction, session keys and paymasters
- Custodial wallet infrastructure with policy engines and withdrawal approval
- Multisig treasury wallets with role separation and timelocked spending rules
- Embedded wallets created from email, social or passkey login
- Wallet as a service back ends for products that need thousands of accounts
How the build runs
Threat modelling comes first: which keys exist, where they live, who can trigger a signature and what an attacker gains at each step. Key material stays inside the secure enclave or is split so that no single party holds a usable share. Recovery is designed before onboarding, because a wallet without a recovery story is a wallet that eventually loses a customer's money. Transaction simulation runs before signing so the interface can show the balance change rather than a hex payload, and approvals are scoped to an amount and an expiry. Everything is tested against hostile input: a spoofed chain identifier, a look alike token, a malicious signature request, a phishing site asking for infinite approval. Independent review covers the cryptography and the contract wallet code before release.
Where this fits
Wallet work sits inside our Web3 Development practice. Contract wallets and paymasters are written under Smart Contract Development, chain support and node access come from Blockchain Development, and assets held come from Token Development, NFT Marketplace Development or RWA Tokenization. Trading and swap features connect to DeFi Development and Crypto Exchange Development, and treasury signing policy is usually agreed alongside DAO Development. The companion web app is built by Web Development, with mobile and back end work from Software Development.
Keys, recovery and custody models
Non custodial wallets keep keys on the device, backed by the secure enclave, with encrypted cloud backup the user controls. Multi party computation removes the single seed phrase entirely by splitting signing across the device, a server and a recovery share. Smart contract wallets add social recovery, spending limits and session keys, so a lost device does not mean lost funds. Custodial models keep keys under your policy engine with quorum approval and hardware backing. We pick the model against your users and your regulatory position, and we write down the trade off rather than hiding it.
Making transactions understandable
Before a user signs, the wallet simulates the transaction and shows what changes: which token leaves, which arrives, what fee applies and which contract gains an allowance. Unlimited approvals are flagged, existing approvals are listed and revocable, addresses are checked against known scam lists, and the first transfer to a new address asks for a second look. These details are why support tickets and losses stay low.
What you get at handover
Source code in your repositories, the threat model and key management design, cryptographic and contract review reports with findings closed, recovery and support runbooks, store ready mobile builds, monitoring for failed and stuck transactions, and a thirty day warranty on behaviour that does not match the specification.
Working with businesses in London
Work for clients in London runs remote first: a named engineering team, a scope agreed in writing before anything starts, and demos on a fixed cadence you can hold us to. Working hours overlap your business day and everything is delivered in English.
Holding keys on behalf of customers is a regulated activity in many places, so we confirm what applies to businesses in London with your counsel before choosing a custody model. That answer shapes the architecture rather than following it.
You get one point of contact, senior engineers on delivery, and reporting tied to shipped, reviewed software rather than activity. Businesses in London and the wider region are supported on the same terms.
Ready to build a wallet your customers can handle?
Tell us who will use it and what they need to hold, and we will send a custody recommendation, scope and quote.
Serving London and the wider region.
Queries raised before signature
Everything worth knowing about Crypto Wallet Development in London.
01Custodial or non custodial, which should we build?
Non custodial avoids holding customer funds and the obligations that follow. Custodial gives you recovery, support and control. Multi party computation and smart contract wallets sit between the two and suit most consumer products.
02How long does wallet development take?
An embedded wallet inside an existing product usually takes six to ten weeks. A standalone multi chain mobile wallet with recovery, swaps and staking runs four to six months including review.
03Can users sign up without a seed phrase?
Yes. Passkey or social login with multi party computation or a smart contract wallet gives an account with no phrase to lose, and a self custody export path for users who later want one.
04What is account abstraction and why does it matter?
It makes the account a smart contract rather than a raw key pair, which allows social recovery, spending limits, batched transactions, session keys and letting someone else pay the gas.
05How does recovery work if a user loses their phone?
Depending on the model, through an encrypted backup they control, a recovery share held separately, or guardians who can approve a key change after a delay. It is designed before launch and tested.
06Which chains can the wallet support?
EVM networks share an address format and are straightforward to add together. Solana, Cosmos and Bitcoin need separate derivation and signing paths, which we scope individually.
07Can we sponsor gas so users do not need the native token?
Yes, through paymasters on networks that support account abstraction, or through a relayer with meta transactions. Sponsorship policy and spend caps are set by you.
08How do you protect users from phishing and malicious approvals?
Transaction simulation with plain language previews, warnings on unlimited allowances, an approval manager for revoking old permissions, scam address lists, and domain checks on signature requests.
09Is the wallet security reviewed independently?
Yes. Key management and cryptographic design get a specialist review, and any smart contract wallet code goes through a full audit before release.
10Can the wallet be embedded in our existing app?
Yes. Wallet as a service back ends and mobile SDKs let you create accounts inside your own onboarding, with your branding and no separate download.
11Do you build multisig treasury wallets?
Yes, with role separation, quorum thresholds, spending limits, timelocks on policy changes and a documented signer recovery procedure for organisations holding funds.
12What ongoing work does a wallet need?
Chain and token list updates, dependency and cryptographic library patching, store compliance for mobile releases, fee estimation tuning, and support tooling for stuck transactions.
13Do you offer Crypto Wallet Development in London?
Yes. e10 Infotech delivers Crypto Wallet Development for businesses in London and the wider region, remote first with a named team and a scope agreed before work starts.
14How do you run Crypto Wallet Development projects for clients in London?
Working hours overlap the London business day, communication is in English, and you get one point of contact with reporting tied to shipped, reviewed software rather than activity.
Sign off and we start
Tell us what you are trying to build. You will hear back from an engineer, not a sales desk.
- For
- e10 Infotech Private Limited
- Office
- Mumbai, Maharashtra
- Established
- 2011
- Direct line
- +91 86574 40720