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+ taona

Institutional delivery experience

1500+

Projects delivered across blockchain and AI

Fixed timeline

Go-live date set in your proposal, based on your use case

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.

Ny sehatra "wallet-as-a-service" an'ny Antier dia manome anao fototra mitovy amin'ny andrim-panjakana amin'ny alร lan'ny fampidirana fa tsy fanamboarana indray, ka ny ekipanao no mandefa ny vokatra, ary izahay no mitondra ny sosona "wallet" eo ambaniny.

Izay azonao, andro voalohany

  • mpanjifany: 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
  • automatique: consolidation, gas funding, low-fee sending and scheduled refills
  • interface: web dashboard, iPhone and Android app, REST APIs, SDK and webhooks
  • tatitra: 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.

MPC amin'ny alร lan'ny default

Key shares across your servers and signers' devices, with a recovery kit so a signer leaving never locks your team out.

Mobile approvals

Signers approve and sign from the iPhone and Android app, under the same policies as every other transfer.

Azo jerena amin'ny alalan'ny famolavolana

Every initiation, approval and rejection logged for internal audit and regulators.

Kitapo crypto marika fotsy natao ho an'ny marikao, fa tsy ho an'ny anay

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.

Transaction firewall

  • Transfer rules and limits: block or flag transfers by wallet, asset, destination or value
  • Famantarana ny anomaly: unusual transactions are held until approved
  • Fanokana-toerana: 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

Fitantanam-pitondrana

  • 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
  • Lalana fanaraha-maso: 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.

Automated consolidation

Deposit balances above your threshold sweep to your withdrawal or treasury wallet on a schedule you set.

Toeram-pitrandrahana solika

One wallet funds network fees for every deposit address, so token transfers never stall.

Famenoana voalahatra

Hot withdrawal wallets are topped up from treasury when they run low, after approval.

Low-fee sending

Transactions go out at a low fee and are automatically re-sent with a higher fee if they get stuck.
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.

Deposit wallet

One per chain
A unique address for every user, generated through the API and mapped to their account.

Withdrawal wallet

One per chain
Pays out every customer withdrawal within your policies.

Toeram-pitrandrahana solika

automatique
Funds deposit addresses so token balances can be swept.

kitapom-bolam-panjakana

Mobile approvals
Holds the surplus; every transfer needs approval on the mobile app.

Deposit flow

  • 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.

Withdrawal flow

  • 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.

API fitsaharana

Create wallets and deposit addresses, send transactions and read balances.

Language-agnostic SDK

Build in the language your team already uses.

Real-time webhooks

Incoming and outgoing transactions pushed to your backend, no polling.

Dashboard and mobile app

Your operations team manages wallets, policies and approvals from the web dashboard and the iPhone and Android app.

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.

KYT and AML screening

Connect your chosen KYT vendor through our APIs to risk-score addresses and transactions.

Fitsipika fitsangatsanganana

Connect your chosen Travel Rule vendor through our APIs to exchange originator and beneficiary data.

Built for audit

Approval quorums, access logging and compliance reports ready for examiners.

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.

dingana 1 Discover and architect

We map your chains, users and approval rules into a wallet architecture.

dingana 2 Configure and integrate

Wallets, policies and automation configured and connected to your platform.

dingana 3 Test and harden

Security review and testing before a single real user touches it.

dingana 4 Alefaso sy mizana

Go live with a dedicated engineer and support as chains, volume and features grow.

Why choose Antier as your crypto wallet as a service provider?

Lalina, fa tsy fanaterana fotsiny

Dedicated wallet architects, not a ticket queue.

Fiarovana amin'ny ambaratonga orinasa

MPC security, API/SDK integrations, and scalable architecture designed for institutional-grade operations.

Dian-tongotra fanaterana manerantany

Teams in India, the UK, the UAE, the USA and Australia.

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.

Matetika nanontany fanontaniana

Inona no atao hoe Wallet-as-a-Service (WaaS)?
What is an MPC wallet, and how secure is it?
Do you offer a crypto wallet API?
Who holds the private keys?
How much time does Wallet-as-a-Service development take?
Inona avy ireo blockchains tohananao?
Can I use my own compliance providers?
Ahoana no mampitaha izany amin'ny fananganana poketra anatiny?
Ohatrinona ny vidin'ny Wallet-as-a-Service?

Atombohy ny resaka amin'i Antier

Mifandraisa amin'ireo mpanolo-tsaina sy mpitarika injeniera anay mba handaminana ny fanovana nomerika ataonao, manomboka amin'ny famerenana ny maritrano ka hatramin'ny fametrahana ny famokarana.




    Azafady mba jereo ny politika momba ny fiainana manokana raha mila fanazavana fanampiny.