Wallet-as-a-Service (WaaS) platform for exchanges, fintechs and enterprises
Antier's Wallet-as-a-Service infrastructure gives exchanges, fintechs and payment platforms MPC-secured wallet infrastructure, with policy controls, automation and APIs that plug into your existing platform. Your keys stay on your own servers; we configure, integrate and support everything around them.
- MPC wallets with keys hosted on your own servers
- Transaction firewall, approval quorums and audit trails
- 20+ chains supported
- REST APIs, SDK and webhooks for your existing platform
500+
Blockchain and AI engineers
15+ years
Institutional delivery experience
1500+
Projects delivered across blockchain and AI
Explore our wallet as a service with no downtime
The custody, controls, and automation of an in-house build, without the in-house build.
Building a proprietary crypto wallet solution in-house means owning key management, blockchain connectivity, custody logic, and compliance plumbing from the ground up. That path routinely runs past seven figures in engineering and audit costs, and still takes over a year to harden for production.
Antier's wallet-as-a-service platform gives you the same institutional-grade foundation through an integration instead of a rebuild, so your team ships the product, and we carry the wallet layer underneath it.What you get, day one
- Wallets: hot crypto wallets with an address per user, hot withdrawal wallets, MPC treasury wallets and a gas station
- Security and governance: firewall policies, anomaly detection, approval quorums, whitelists and spending limits
- Automation: consolidation, gas funding, low-fee sending and scheduled refills
- Interfaces: web dashboard, iPhone and Android app, REST APIs, SDK and webhooks
- Reporting: holding statements, monthly account statements, compliance reports and a full audit log
- A dedicated implementation engineer and a Slack support channel
MPC wallet as a service with no single point of failure
Your keys stay on your own servers, and a full private key is never assembled in one place, not even to sign.
Multi-party computation splits each key into shares held in separate environments. Each share computes its part of the signature where it lives, and the parts combine into one standard signature. Compromising a single server, device or person is not enough to move funds. Key shares for your hot wallets sit on your own servers, and Antier holds none.
White-label crypto wallets engineered for your brand, not ours
Your logo, your UX, your customer relationship: our wallet engine working quietly underneath.
Our white-label wallet-as-a-service ships with your visual identity and user flows front and center, while custody logic, key management and blockchain connectivity run invisibly behind the scenes. Your customers never see anything but you.
Crypto wallet security: every transaction checked against your policies
Hire the best wallet as a service provider. Decide who can move funds, where they can go, and prove who did.
Transfer rules and limits: block or flag transfers by wallet, asset, destination or value
- Anomaly detection: unusual transactions are held until approved
- Quarantine: flagged incoming funds are held until reviewed
- Transaction simulation: signers see the exact outcome before signing
- Blind-signing prevention: a human-readable summary before every approval
- Approval quorums: the private key is split into shares, and a transaction is signed only when the required number of shares sign together
- Address whitelisting: funds only move to pre-approved addresses
- Audit trails: every action logged for internal audit and regulatory reporting
The same checks apply whether a transfer starts from the API, the dashboard or the mobile app.
Automated crypto wallet operations: rules that run themselves
Set the rules once during onboarding. Your team steps in only to approve.
90%+
Reduction in manual operational hours once consolidation and gas funding are automated.
Crypto exchange wallet infrastructure: how it works
Start your WaaS development with Antier and route every deposit and withdrawal through purpose-built wallets, checked against your policies at each step.
A unique address for every user, generated through the API and mapped to their account.
Pays out every customer withdrawal within your policies.
Funds deposit addresses so token balances can be swept.
Holds the surplus; every transfer needs approval on the mobile app.
- A user signs up and your backend requests their deposit address.
- The user sends funds; a webhook notifies your backend.
- Your KYT provider screens the deposit.
- Balances above your threshold are swept to the withdrawal or treasury wallet on schedule.
- Your backend submits the payout through the API.
- Firewall policies decide the path.
- MPC signs and broadcasts; a webhook confirms it so your ledger can close the request.
- When the hot wallet runs low, treasury refills it after approval.
Our flawless multi-chain WaaS model supports 20+ chains
Tell us the chains you need and we confirm coverage with you directly.
Crypto wallet API and SDK that plug into your existing platform
Run cryptocurrency wallets from your own product or from our dashboard and mobile app. Integration is scoped with your team directly.
Compliance-ready crypto WaaS development solution for regulated markets
Connect the KYT and Travel Rule providers you choose, at any time, through our APIs.
Whether you are a licensed exchange, a neobank or a fintech under active regulatory scrutiny, our APIs support third-party vendors, so KYT and Travel Rule services can be integrated at any time as separate services. Results feed straight into the transaction workflow, so checks run before approvers are asked to sign.
Web3 wallet as a service use cases
One crypto wallet infrastructure for every business that moves digital assets.
Our WaaS development process
No open-ended timelines: every phase has a deliverable and a date.
Why choose Antier as your crypto wallet as a service provider?
We design 100% impeccable Wallet-as-a-Service solutions tailored for exchanges and fintechs
Connect with our experts to claim a direct assessment of what your product needs.
Frequently asked questions
Start a conversation with Antier
Connect with our consulting and engineering leads to scope your digital transformation from architecture review to production deployment.
