RWA Tokenization Infrastructure
RWA tokenization infrastructure: permissioned tokens, async vaults, compliance, Proof-of-Reserve, and secondary liquidity deployed on your own stack, not a closed platform.

Reviewed by Luis Medeiros, Field CTO at ProtofireLast reviewed: June 2026
RWA tokenization infrastructure is the on-chain stack that turns a real-world asset (a treasury bill, a private-credit note, a building, a fund share) into a compliant, transferable token and then governs it for its whole life: issuance, KYC and transfer rules, valuation and Proof-of-Reserve, distribution, secondary liquidity, and downside protection. Most vendors sell you a closed tokenization platform and ask you to move your assets onto theirs; Protofire doesn't.
We are a blockchain engineering company that has shipped 250+ projects since 2016, and we build tokenization infrastructure as an integrator. Rather than lock you into someone else's platform, we deploy the open standards (ERC-3643 for permissioned tokens, ERC-4626 and ERC-7540 for vaults) on your chain and your stack, then add the compliance, oracle, and protection layers around them.
We've also built the on-chain finance stack ourselves: Arenas (white-label credit), RWArmor (parametric RWA protection), VaultOS (private vault infrastructure), and dOTC (RWA secondary market). The infrastructure we hand you is infrastructure we run in production, not a reference architecture.
RWA tokenization is a six-layer stack
A tokenized asset is not one contract. We build and integrate all six layers.
Permissioned Token (ERC-3643)
Async Vault (ERC-4626/7540)
Compliance & KYC
Oracles & Proof-of-Reserve
Secondary Liquidity (dOTC)
Parametric Protection (RWArmor)
Where we build
Tokenized securities can't trade like an ERC-20: only eligible, verified wallets may hold them, and that has to be enforced on-chain forever, not at mint alone. We issue permissioned tokens on the ERC-3643 standard, with an on-chain identity registry, modular transfer rules (jurisdiction, accreditation, lock-ups, holder caps), and an agent/issuer role model so your transfer agent keeps control after distribution.
The same approach covers tokenized treasuries, private credit, funds, commodities, and real estate. Benefits: compliant by construction, not bolted on · transfer eligibility enforced at the token level · a standard buyers and exchanges already recognize.
Once an asset is tokenized, capital has to flow in and out of it. We build vaults on ERC-4626, and on ERC-7540 for the asynchronous subscription/redemption that funds and credit pools actually need: request, settle, and NAV-gate flows that public vaults and manual scripts can't do at institutional quality.
This is the layer our VaultOS product hardens into client-owned, policy-driven vault infrastructure (separate roles for operator, valuation, risk, and admin); validated in design partnerships with AP3X and other tokenization platforms. For the productized vault, see VaultOS; this page builds the broader category. Benefits: async subscribe/redeem for real funds · standardized, composable vault interface · governance and role separation institutions require.
The blocker for institutional RWAs is rarely the token itself; it's KYC/KYB, eligibility, and the audit trail. We integrate KYC/KYB providers, encode investor eligibility and jurisdiction logic into the transfer layer, and run the contracts through pre-audit hardening. We maintain Solhint, the open-source Solidity linter used by 1M+ developers and built with Ethereum Foundation grants, and our published audit reports are public proof of the bar. Benefits: KYC/transfer enforcement at every transfer · a defensible compliance trail for regulators and allocators · audited contracts before a single asset is minted.
A tokenized asset is only as trustworthy as the proof that the real asset exists and is worth what the token says. This is where a lot of RWA projects quietly break: the token claims it's backed, but nothing on-chain actually attests to it. We're core contributors to Chainlink and have been a Chainlink partner since 2021, and we wire in Chainlink Proof-of-Reserve so the off-chain collateral behind your token (treasuries in custody, fiat reserves, physical assets, loan books) is attested on-chain, continuously and independently, instead of asserted in a quarterly PDF.
Alongside it we integrate price and NAV oracle feeds (from Chainlink or DIA, across 7+ networks) so valuation updates automatically and your redemptions, mint caps, and vault accounting all read from the same trusted source. For an issuer raising institutional capital, that verifiable reserve-and-valuation layer is often the difference between a pilot and a real allocation. Benefits: independent on-chain attestation of backing assets via Chainlink PoR · live NAV and collateral transparency, not quarterly PDFs · the reserve story that unlocks institutional capital.
Issuance is the easy half; an asset nobody can exit, or that has no safety net, won't attract institutional money. We stand up secondary venues with dOTC, our permissioned, KYC-gated RWA OTC market (live in production on Polygon and BNB Chain) with a yield toolset to attract liquidity providers.
And we close the gap with RWArmor, our live parametric protection layer for tokenized RWAs: automated, oracle-triggered coverage for redemption freezes, custody breaks, and NAV deviation, built on Atomica and live with LandX. Benefits: compliant secondary liquidity on top of primary issuance · a parametric safety net for LP and institutional capital · the risk infrastructure that converts uncertain RWA yield into protected yield.
Some clients don't want to tokenize a single asset; they want to offer tokenization as their own product to their own customers. We assemble the full stack (ERC-3643 issuance, ERC-4626/7540 vaults, compliance, PoR, and a secondary venue) into a white-label tokenization platform that runs under your brand, on your infrastructure, under your governance.
It's the same approach behind Arenas, our white-label credit infrastructure live as the LandX Credit Gateway on Arbitrum: your product and your customers, our engineering underneath. No revenue share to a third-party platform, no dependence on someone else's roadmap, and no migration the day you want to change something. Benefits: tokenization-as-a-product under your own brand · the full issuance-to-secondary stack, not one rented component · you own the contracts, the data, and the roadmap, with no platform lock-in.
How it works
Discovery & Asset Structuring
Issuance & Compliance Build
Vaults, Oracles & Proof-of-Reserve
Distribution & Secondary
Protection & Ops (Optional)
What clients build with us
The builder behind the RWA finance stack
Protofire is a blockchain engineering company with 250+ shipped projects across 60+ networks and 95+ protocols since 2016. What sets our tokenization work apart is that we've built the on-chain RWA finance stack ourselves: Arenas (white-label credit, live as the LandX Credit Gateway on Arbitrum), RWArmor (parametric protection for tokenized RWAs), VaultOS (client-owned ERC-4626/7540 vault infrastructure), and dOTC (RWA secondary market, live on Polygon and BNB Chain).
Our credentials include maintaining Solhint (the Solidity linter used by 1M+ developers) and serving as an official Safe Guardian. Clients include Swarm Markets, Chainlink, Aave, MakerDAO, Filecoin, and the Ethereum Foundation. We're also a top-3 indexer in The Graph ecosystem and a Chainlink core contributor, and as a Safe Guardian, Protofire-deployed networks secure $2B+ in assets across 120+ EVM networks. The compliance, oracle, and reserve layers we wrap around a tokenized asset therefore run on infrastructure we operate ourselves.
The proof is in shipped systems, not slideware. For Swarm Markets we helped build the world's first BaFin-licensed DEX for crypto and tokenized real-world assets (KYC, multi-tier permissioning, and 50+ pairs including tokenized Apple and Tesla stock), cutting fees 98%, onboarding 7,000+ verified users, and lifting monthly volume from under $1M to over $15M in six months. When we recommend a tokenization architecture, it's one we already operate.
“You own the contracts, the data, and the roadmap, not a third-party platform.”
We helped build the permissioned infrastructure, KYC layer, and compliance stack for the world's first BaFin-regulated DEX for crypto and tokenized real-world assets, 50+ pairs including tokenized Apple and Tesla stock, growing monthly volume from under $1M to over $15M in six months.
RWA Tokenization: Build In-House vs. Integrated Delivery
| Build the full stack yourself | Protofire | |
|---|---|---|
| Permissioned token + vault layers (ERC-3643, ERC-4626/7540) | Design and deploy both contracts; handle async redemption yourself | Both pre-built, audited, and integrated as one system |
| Compliance, KYC & transfer rules | Encode compliance logic yourself; manage pre-audit separately | Pre-audited, modular transfer rules; on-chain eligibility enforcement included |
| Proof-of-Reserve & transparency | Integrate Chainlink PoR and price feeds yourself | Chainlink PoR, live NAV oracles, and reserve attestation included end-to-end |
| Secondary liquidity & risk layer | Operate a secondary venue (OTC, DEX) and protection separately | dOTC (permissioned secondary market) + RWArmor (parametric protection) included |
FAQ
What is RWA tokenization?
What's the difference between tokenization and securitization?
Which token standard should I use: ERC-3643 vs. others?
How are custody and compliance handled?
Do you build a closed platform, or on our own stack?
We're an asset manager or fund. Can you tokenize a fund share class for us?
How long does an RWA tokenization project take?
How much does an engagement cost?
Apply to build with us
Tell us what you are building; a link helps but is not required. We talk it through on a call, and a written proposal follows within one business day of the call.
Budget
An engineer reads your link before the call. The written proposal arrives within one business day after it. How it works


