RWA tokenization platform development
Tokenizing a real-world asset is a compliance and custody problem before it is a smart-contract problem. We build platforms where eligibility rules live in the token itself, custody and settlement are auditable, and the chain always reconciles to the records of record.
MappOptimist builds real-world asset (RWA) tokenization platforms for asset managers and fintechs: transfer-restricted token contracts that enforce identity, eligibility and jurisdiction rules on-chain, a custody and settlement layer, reconciliation between on-chain state and off-chain records, and issuer and holder portals. Contracts are independently audited at each milestone. Our engineers built such a system on Ethereum for an asset-management firm.
Problems we solve
An allowlist in the app is not compliance
If eligibility is only checked in your web app, a token can still move to anyone who calls the contract directly. Regulators and auditors look at what the asset itself allows.
The token and the asset drift apart
Distributions, redemptions and corporate actions happen off-chain. Without reconciliation, the ledger slowly stops matching the register, and nobody notices until an audit.
Custody and settlement are an afterthought
Teams build the token first and then discover that custody controls, settlement flows and investor onboarding are where most of the work and most of the risk sit.
Security reviewed once, at the end
A single audit before launch on a large contract surface finds problems too late to fix cheaply. Every later change reopens the same risk.
What we build
Transfer-restricted token contracts
Solidity contracts where identity, eligibility and jurisdiction rules are checked on every transfer, so only verified, eligible participants can hold or receive the token. We choose the token standard with you; permissioned standards such as ERC-3643 follow the same model.
Identity and eligibility onboarding
Participant verification that gates who can hold and trade, connected to your KYC process or provider, with eligibility status reflected on-chain.
Custody layer
Clear, auditable custody controls for holdings, with roles and approvals defined around how your fund or issuer actually operates.
Settlement and reconciliation
Transfers settle on-chain within the token's rules, and reconciliation services keep on-chain state matched to the off-chain records of record.
Issuer and holder portals
React and Node.js applications that give issuers and investors a simple interface over the protocol: onboarding, holdings, transfers and reporting.
Audited, milestone-based delivery
The trusted contract surface is kept deliberately small and reviewed by independent auditors at each milestone, before anything is released.
How an engagement runs
- Step 01
Model the asset and the rules
With your legal and compliance advisers, we turn the asset's ownership, eligibility and transfer rules into a precise specification the contracts must enforce.
- Step 02
Design the protocol
Token standard, contract architecture, custody roles, settlement flow and the reconciliation model, with the trusted surface kept as small as possible.
- Step 03
Build and audit in milestones
Contracts, custody and settlement are built milestone by milestone, each one independently audited before the next begins.
- Step 04
Launch the application layer
Issuer and holder portals go on top once the protocol is proven, followed by production support and changes under the same audit discipline.
Ways to work with us
End-to-end platform build
A senior team owns contracts, custody and settlement, reconciliation and the application layer against outcomes you define. This is how our tokenization system was delivered.
Smart-contract team
Solidity developers who join your team to build or extend token, custody or settlement contracts, working within your audit process.
White-label delivery
For consultancies and fintech studios that have won a tokenization project and need blockchain engineers to deliver it under their brand.
Need individual engineers rather than a project? See the roles you can hire and their rates.
Technology we work with
Our tokenization and settlement work
Real-World Asset Tokenization System
On-chain representation, custody and settlement for real-world assets, with compliance built in.
Read the case study →Web3 · InfrastructureOn-chain settlement network
High-throughput blockchain infrastructure that settles cross-border payments at scale — for a fraction of a cent per transaction.
Read the case study →Frequently asked questions
What is real-world asset tokenization?
It is representing ownership of an off-chain asset, such as a fund, property, bond or receivable, as tokens on a blockchain. The token can then be transferred and settled on-chain, but it must still match the legal record of who owns what and respect who is allowed to hold it.
How do you enforce KYC and eligibility on-chain?
The token contract checks an eligibility registry on every transfer, so a transfer to an unverified or ineligible wallet fails at the protocol level, not just in the app. Verification itself happens through your KYC process or provider, and its outcome is written to the registry.
Do you use ERC-3643?
We choose the token standard with you. Our tokenization system uses transfer-restricted tokens on Ethereum with eligibility enforced in the contract. Permissioned standards such as ERC-3643 follow the same model and are a strong option when interoperability with other platforms matters.
Can you advise on the regulations for our asset?
No. Regulation depends on the asset and the jurisdictions involved, and it needs your legal counsel. What we do is turn the rules your advisers set into contracts and processes that enforce them, and make sure the system produces the audit trail they need.
How are smart contracts audited?
We keep the trusted contract surface small and have it reviewed by independent auditors at each milestone, before release. Changes after launch go through the same review.
What does an RWA tokenization platform cost?
Cost depends on the number of asset types, the transfer and eligibility rules, custody and settlement requirements, integrations and audit scope. Platform builds are quoted after scoping. For team augmentation, our 2026 rate card lists a Solidity / Smart Contract Developer at $38/hr (2-3 years), $45/hr (4-6 years) and $52/hr (6+ years). Rates are indicative and confirmed per engagement.
Discuss your tokenization project
Tell us the asset, the investors and the rules the token must enforce. We reply within one business day with how we would design the platform.