Enterprise-grade security

Custody & wallet infrastructure
for digital assets.

Institutional-grade custody and wallet infrastructure, built for long-term security and everyday crypto operations. If you operate with crypto, this is your infrastructure.

No commitment - talk to our team.

Independently pentested Hardware + MPC custody

Built for teams across

Banks Custody providers Exchanges & brokers Bitcoin treasury Asset managers Payments Gaming & betting Tokenization Startups & DeFi Embedded wallets Governments

Built on proven primitives

HSM/ Offline signers/ MPC/ Safe 1.4.1/ BIP-32 · BIP-67/ CREATE2/ WebAuthn/ Ed25519

Who it's for

If you operate with crypto,
there's a for that.

From a bank parking reserves for decades to a consumer app shipping wallets overnight — the same core, configured for your operating model.

Banks

Banks & custody providers

Cold storage that satisfies regulators: per-client vaults, segregation of duties, on-premise options, and a tamper-evident audit trail.

Exchanges

Exchanges & brokers

Keep reserves cold, settle warm. MPC operations move withdrawals through whitelisted, threshold-gated rails at low latency.

Treasury

Bitcoin treasury & corporate

Hold BTC reserves under dual control with finance and security officers, daily limits and destination whitelists — built to last decades.

Payments

Payments & fintech

High-throughput MPC signing for treasury movement, payouts and settlement — with policy guardrails and real-time reconciliation.

Assets

Tokenization & asset issuers

Custody minted assets and investor funds with delegated approvers, programmable policies and evidence of every movement.

Gaming

Gaming, betting & DeFi

Crypto-native teams that need hot operational wallets and cold reserves on the same platform — fast, programmable, audited.

Wallets

Consumer apps & wallets

Embed non-custodial wallets into your product — passkey login, no seed phrases, you stay out of the key path. Ship like pump.fun-grade teams.

Startups

Startups & crypto-native

Operational simplicity from day one — provision vaults and wallets via API, move fast, and graduate to cold storage as you scale.

Reserves

VC funds & reserves

Long-term cold storage for treasury and LP capital with delegated approvers and verifiable cold posture for investors.

Operate with crypto? Let's talk.

Architecture

One integration layer for custody, wallets and crypto operations.

Connect once, then route every workflow through the same governed core — wallet creation, transaction signing and policy checks.

Networks

Wallet Management

create · recover · rotate

Transactions

quote · sign · broadcast

MPC Custody

Isolated shares for operations

Node A

isolated
shares

Node B

Cold Custody

Fully airgapped for long term holding

Offline
signer A

Offline
signer B

HSM

Events

Signed webhooks

verifiable delivery

Confirmations

network finality

Balance updates

real-time state

Policy Engine

limits · whitelists · quorum

User Management

roles · passkeys · API keys

One governed core for custody, wallets and crypto operations.

Networks

Wallets & transactions

Wallet Management

Create, recover, rotate.

Transactions

Quote, sign, broadcast.

MPC Custody

Isolated shares for operations

Distributed signing for high-throughput withdrawals, payments and embedded wallets.

Cold Custody

Fully airgapped for long term holding

Offline signers and HSM-held key material for reserves that need maximum isolation.

Controls & events

Events

Webhooks and confirmations.

Policy Engine

Limits, whitelists, quorum.

Users

Roles, passkeys, API keys.

Integration ecosystem

Connect custody workflows to staking, exchanges, HSMs, signer devices, cloud, market data and compliance — we are continuously adding new integrations.

StakingKiln

StakingFigment

ExchangeB2M

HSMSecurosys

Signer deviceTrezor

DeploymentGCP

DeploymentAWS

DeploymentHetzner

Market dataCoinGecko

ComplianceChainalysis

Independent signers
required to move funds

Single points of failure
in the key path

Guarded checkpoints
per outbound transfer

Custody models
on one platform

Capability metrics reflecting DAC's as-built architecture.

The platform

Simplify every crypto operation.
From daily movement to decades-long custody.

Move funds from everyday operations into vault-grade cold custody in a click. Create wallets and deposit addresses for customers, receive deposits, and move assets at speed — all under the same policy, audit, and signing controls.

01Cold custody

Secure for decades

Air-gapped, hardware-wallet multisig for long-term reserves. Move assets out of operational flow and into vault-grade storage when they need to be protected for years, not quarters.

→ HSM + hardware-wallet 2-of-3 threshold
→ On-premise option & open-source recovery
→ Native P2WSH & Safe accounts

For

Banks Custody providers Bitcoin treasury Asset managers VC reserves

02MPC custody

Fast operations

Distributed MPC custody for high-throughput, low-latency movement. Receive deposits, approve withdrawals, rebalance wallets, and automate flows with institutional controls built in.

→ Distributed key shares, no single point of failure
→ Policy engine: limits, whitelists, quorum
→ Fast, programmable signing at scale

For

Exchanges Payments Tokenization Gaming & betting Crypto-native startups

03Embedded wallets

Millions of wallets and deposit addresses

Create customer wallets and deposit addresses inside your product. Scale onboarding, deposits, and user balances through a developer-first API without inheriting unnecessary key risk.

→ MPC wallets provisioned per user
→ WebAuthn & passkey login, no seed phrases
→ REST API, SDKs & signed webhooks

For

Consumer apps Trading platforms DeFi Wallets-as-a-service Neobanks

Not sure which fits? Tell us how you operate with crypto →

Why DAC

Both worlds. Not half of one.

Most platforms force a trade: maximum security or operational speed. DAC gives institutions cold custody and gives builders MPC operations and embedded wallets — on one governed, audited core.

CAPABILITY		Cold-only custodian	MPC-only SaaS
Decades-long cold storage	✓ Hardware multisig	✓ Yes	—
High-throughput operations	✓ Distributed MPC	—	✓ Yes
Embedded user wallets	✓ Per-user MPC + passkeys	—	Varies
Governance & whitelists	✓ Quorum + versioned	✓	✓
Audit & incident trail	✓ Tamper-evident	✓	✓

Comparison reflects DAC's as-built architecture against common single-mode custody patterns; specifics vary by provider.

Supported assets

Native chain support,
token standards and new networks added continuously.

Track token standards and custody model by network. adds chains, standards, and signing topologies continuously based on customer demand.

Bitcoin

Custody mode

ColdMPC

Ethereum

Custody mode

ColdMPC

Token standards

ERC-20EIP-712

Polygon

Custody mode

ColdMPC

Token standards

ERC-20

BNB Chain

Custody mode

ColdMPC

Token standards

BEP-20

TRON

Custody mode

MPC

Token standards

TRC-20TRC-10

Solana

Custody mode

MPC

Token standards

SPLToken-2022

Continuously expanding

New chains, token standards, and signing topologies are added based on customer demand — without changing the governance and audit foundation.

Developer platform

Integrate custody & wallets
without inheriting the risk.

A clean REST surface on top of a secured core. Create vaults, provision user wallets, propose transfers, and stream on-chain events — every privileged call signed and step-up authenticated.

REST API — vaults, wallets, proposals, balances and audit, Ed25519 API keys.
Embedded wallets — provision per-user MPC wallets with passkey login, no seed phrases.
Signed webhooks — verifiable on-chain events with real-time reconciliation.
Idempotent & replay-safe — nonce-guarded broadcast workers prevent double spends.

Read the API docs Request API access

create-account.sh POST /v1/accounts

# create an operational account inside a vault
curl https://api.dacsafe.com/v1/accounts \
  -H "Authorization: Ed25519 key=$DAC_KEY" \
  -d '{
    "name":     "Operations EMEA",
    "vaultId":  "95f038cc-75d0-4537-b8cd-c0145d6d1362",
    "coinType": "EVM"
  }'

Questions

Frequently asked

Which custody models does

offer?

Three, on one core: cold custody (hardware-wallet + HSM multisig for assets at rest), MPC operations (distributed key shares for fast, high-throughput signing), and embedded wallets (per-user non-custodial wallets for your customers). Pick one or combine them.

Do my keys ever sit in a single place?

No. In cold custody, keys live on hardware (HSM + hardware wallets). In MPC, keys are split into shares across distributed nodes so no single party ever holds a complete key. Either way, there's no single point of compromise.

We're a consumer app — can we embed wallets?

Yes. The embedded-wallets API provisions non-custodial MPC wallets per user with passkey (WebAuthn) login — no seed phrases for your users, and you stay out of the key path. It's designed for trading, gaming, payments and DeFi apps that need to give their customers a wallet.

Which assets and chains are supported?

Bitcoin as native P2WSH multisig, and EVM chains via Safe smart accounts (native + ERC-20). Additional chains are on the roadmap.

Can we enforce spending policies and approvals?

Yes. Per-account daily, per-transaction and count limits, address whitelists, and approver thresholds. Any change to these is gated by multi-admin governance.

audited or certified?

The platform has completed independent penetration testing. SOC 2 and ISO 27001 are in progress, and we publish them as they're awarded. Recovery tooling is open source.

If you operate with crypto,
let's talk.

Cold custody, MPC operations, or embedded wallets — tell us how you move digital assets and we'll show you the right configuration for your business.

No keys, no funds, no commitment — just a conversation.

Custody & wallet infrastructurefor digital assets.

If you operate with crypto,there's a for that.

Banks & custody providers

Exchanges & brokers

Bitcoin treasury & corporate

Payments & fintech

Tokenization & asset issuers

Gaming, betting & DeFi

Consumer apps & wallets

Startups & crypto-native

VC funds & reserves

One integration layer for custody, wallets and crypto operations.

Isolated shares for operations

Fully airgapped for long term holding

Isolated shares for operations

Fully airgapped for long term holding

Simplify every crypto operation.From daily movement to decades-long custody.

Secure for decades

Fast operations

Millions of wallets and deposit addresses

Both worlds. Not half of one.

Native chain support,token standards and new networks added continuously.

Bitcoin

Ethereum

Polygon

BNB Chain

TRON

Solana

Integrate custody & walletswithout inheriting the risk.

Frequently asked

If you operate with crypto,let's talk.

Custody & wallet infrastructure
for digital assets.

If you operate with crypto,
there's a for that.

Simplify every crypto operation.
From daily movement to decades-long custody.

Native chain support,
token standards and new networks added continuously.

Integrate custody & wallets
without inheriting the risk.

If you operate with crypto,
let's talk.