Blockchain Engineering Decision Guides
Neutral, engineer-written comparisons for regulated onchain products: stablecoins and payment rails, tokenized funds, MiCA, DORA, custody and chains.
21
decisions covered
123
options compared
254
questions answered
1339
primary sources cited
Stablecoins and payments
Which coin, deposit token, payout rail or agent protocol carries the money.
01October 2026
Stablecoin model
What backs the dollar you issue?
Fiat-backedCrypto-backed (CDP)AlgorithmicSynthetic (delta-neutral)
4 options comparedRead the guide →
02October 2026
Euro stablecoin
Which euro token to integrate, and when to issue your own?
EURC (Circle)EURCV (SG-FORGE)EURI (Banking Circle)EURe (Monerium)EURØP (Schuman Financial)EURQ (Quantoz)EURAU (AllUnity)
7 options comparedRead the guide →
03October 2026
Onchain money for banks
Deposit token, stablecoin, or tokenized fund?
Deposit tokenBank-issued stablecoin or e-money tokenThird-party stablecoinTokenized MMF shares
4 options comparedRead the guide →
04October 2026
Stablecoin payout rail
Which rail pays out in stablecoins for you, and whose license covers each payout?
BVNK (Mastercard)zerohashBridge (Stripe)Circle Payments Network (CPN)FiptoRipple PaymentsYellow CardSeveral rails behind one routing layer
8 options comparedRead the guide →
05October 2026
Agentic payment protocol
How should an AI agent pay, and how do you get paid by one?
x402MPP (Machine Payments Protocol)ACP (Agentic Commerce Protocol)UCP (Universal Commerce Protocol)AP2 (Agent Payments Protocol)Card network agent programs
6 options comparedRead the guide →
Tokenized funds and assets
Who tokenizes a fund, which token standard it uses, and where it can be held or borrowed against.
06October 2026
Fund tokenization provider
Who keeps the fund's register once it is tokenized?
SecuritizeTokeny (Apex Group)Kinexys by J.P. MorganAllfunds BlockchainCalastone (SS&C)SpikoCACEIS (Crédit Agricole CACEIS)Your own stack, with an engineering partner
8 options comparedRead the guide →
07October 2026
RWA token standard
What carries the compliance rules, the token or the paperwork?
ERC-3643 (T-REX)ERC-1400Permissioned ERC-20
3 options comparedRead the guide →
08October 2026
On-chain dollar
A dollar that spends, or a dollar that earns?
Fiat stablecoinsTokenized treasuries & MMFsDeFi yield-bearing dollars
3 options comparedRead the guide →
09October 2026
Lending against tokenized assets
Who lends against tokenized funds and loan tokens (BUIDL, JAAA, PRIME), and at what LTV?
Aave HorizonMorphoKamino (Solana)Exchange and prime-broker marginBank collateral networksYour own market
6 options comparedRead the guide →
Regulation, custody and risk
Licenses, Travel Rule and DORA duties, custody models and privacy for regulated firms.
10October 2026
MiCA license route
Authorization, notification, token issuance or a partner's license: which MiCA route fits your crypto product?
CASP authorizationArticle 60 notificationEMT issuanceART issuanceTitle II white paperPartner licensePSD2 add-onOutside MiCA
8 options comparedRead the guide →
11October 2026
Crypto-as-a-service for banks
Rent a licensed rail, or run your own custody?
SygnumBoerse Stuttgart DigitalBitpanda EnterpriseCrypto FinanceKraken EmbedOwn custody on licensed technology
6 options comparedRead the guide →
12October 2026
EU Travel Rule solution
Which counterparties can your Travel Rule setup reach, and who runs it?
TRUSTNotabeneSumsub21 AnalyticsTRP and TRISA (OpenVASP)GTR (Global Travel Rule)VerifyVASP (with Sygna) and CODEIn-house build on an open protocol
8 options comparedRead the guide →
13October 2026
DORA third-party risk
ICT provider, financial service or plain dependency: which is each onchain vendor?
Custody technologyRegulated custodian or EMT issuerStaking or validator operatorRPC or node providerOracle networkAnalytics, KYT or Travel Rule vendorSmart contract engineering firmThe public blockchainHyperscale cloud beneath the vendors
9 options comparedRead the guide →
14July 2026
Crypto custody model
Self-custody, MPC, or a chartered custodian?
Safe (multisig)Fireblocks (MPC)Qualified custodian
Safe (multisig)
Fireblocks (MPC)3 options comparedRead the guide →
15October 2026
Onchain privacy for institutions
Which privacy design hides your transactions from rivals and still opens them to a supervisor?
Canton NetworkPrivate EVM ledgers: Besu with Paladin, Rayls, bank-run ledgersPrivate validiums and zones: ZKsync Prividium, Tempo Zones, Base LedgersFHE confidential tokens: Zama ProtocolConfidential token features: Solana Confidential Balances, Avalanche eERC, XRPLZK shielded pools on public EVM: Railgun and Privacy PoolsPrivacy-native chains: Aleo, Midnight, AztecTEE confidential computing: Oasis Sapphire and Secret NetworkA privacy layer built for your EVM chain or product
9 options comparedRead the guide →
Chains and infrastructure
The networks, rollup stacks, messaging, data and engineering partners a product runs on.
16October 2026
Institutional blockchain
Open public chain, public network with approved validators, or private ledger: where should a regulated product settle?
Ethereum mainnetBase and Arbitrum (Ethereum L2s)SolanaStellar and XRP LedgerAvalanche and Polygon PoSCanton NetworkArc (Circle)Tempo (Stripe and Paradigm)Private and permissioned ledgers
9 options comparedRead the guide →
17July 2026
Rollup framework
Optimistic or ZK, and whose stack?
OP StackArbitrum (Orbit)Polygon CDKZK Stack (ZKsync)
OP Stack
Arbitrum (Orbit)
Polygon CDK
ZK Stack (ZKsync)4 options comparedRead the guide →
18July 2026
Cross-chain protocol
Which messaging layer, and whose security model?
Chainlink CCIPLayerZero v2WormholeAxelar (Mobius)Hyperlane
Chainlink CCIP
LayerZero v2
Wormhole
Axelar (Mobius)
Hyperlane5 options comparedRead the guide →
19July 2026
Blockchain indexer
Subgraph, streaming engine, or your own indexer?
The GraphGoldskyEnvio (HyperIndex)Ponder
The Graph
Goldsky
Envio (HyperIndex)4 options comparedRead the guide →
20July 2026
Restaking layer
Whose economic security do you rent?
EigenLayer (EigenCloud)SymbioticBabylon
EigenLayer (EigenCloud)
Symbiotic
Babylon3 options comparedRead the guide →
21August 2026
Web3 development partner
In-house, agency, staff aug, studio, or partner?
In-house teamGeneralist agencyStaff augmentationSecurity audit firmVenture studioEngineering partner
6 options comparedRead the guide →
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