“One of the pioneering firms in web3 solutions, digital assets and tokenization, recognized for its innovation and solid reputation across Spain and Latin America.”
Jorge CorredorLawyer, Rincón Cuéllar & Asociados
We are your blockchain development company in El Salvador
We build blockchain products for companies in El Salvador with our in-house team, separating from the design stage what the Bitcoin Law governs from what the LEAD requires of issuers and providers before the CNAD.
Tell us about your project
Blockchain development in El Salvador, from idea to production
We turn your use case into a product you can launch, operate and grow. The same team designs the architecture, writes the contracts and integrates them with your systems.
Tell us what you want to buildThe Salvadoran framework, from the architecture
Before choosing a network we distinguish the roles the LEAD registers separately with the CNAD: issuer, structurer, certifier and the provider that serves investors. What the contract executes has to match what the issuance documents promise.
Smart contracts ready for review
We write your business logic with tests and peer review. The code arrives ready for an external audit and a phased deployment before it runs in production.
In Spanish, within your working day
You work in Spanish with the people who design and write the code. Meetings fall within your working day in San Salvador; whatever doesn't need a meeting moves forward in writing, through shared documentation and a stable technical channel.
A foundation ready to change
We document the code and plan deployments and monitoring. We flag the platform changes that may need to be reported to the CNAD, so they are not treated as a routine software update.
Services
Blockchain development services in El Salvador
We cover the full Web3 product lifecycle, from idea and MVP to mainnet, audits and maintenance.
Connect your operations
Represent assets and rights
Use cases
Blockchain use cases in El Salvador
The issuances the CNAD already registers and trades the country has protected for almost a century, such as balsam, are where these cases start.
Real estate development debt
The CNAD's list of issuances already includes several from real estate developers; the token gives a claim against the issuer, not ownership of the building.
Blockchain for Real Estate
Enforceable certifications
Since Decree 781 of 2023, certain certifications on digital assets and smart contracts issued by authorised providers carry executory force.
Blockchain for Legaltech & Compliance
Salvadoran balsam origin
A 1935 decree requires every exported container to bear the words “Bálsamo de El Salvador”; each container linked to the tree, the extraction batch and the exporter.
Blockchain for Pharma
A brewery's expansion
Cadejo Brewing Company opened the offering of its CNAD-registered debt token in January 2026, with a token holders' representative acting for investors.
Blockchain for Agribusiness
Technologies we build blockchain with in El Salvador
Our stack covers every layer of your product: smart contracts, blockchain networks and integration with your systems. We use it to build, test and deploy software tailored to your business.
- Solidity
The smart contract language for verifiable rules on EVM networks.
- Rust
Performance and memory safety for contracts, nodes and Web3 tooling.
- Ethereum
EVM contracts, tokens and final settlement on an open Proof of Stake network.
- Hardhat
An environment to compile, test and deploy contracts on EVM networks from Node.
- Foundry
Solidity tests, invariant fuzzing and command-line tooling for EVM networks.
- Chainlink
Oracles for external data, randomness and cross-chain messaging for contracts.
- Polygon
Polygon PoS: EVM contracts secured by its own validators, with low fees.
- Solana
Programs, accounts and parallel execution on a high-throughput layer 1.
- OpenZeppelin
Audited Solidity contracts for tokens, access control and upgradeable systems.
El Salvador: LEAD · CNAD
Blockchain regulatory framework in El Salvador
El Salvador separates two frameworks. The Bitcoin Law, amended in 2025, makes accepting bitcoin voluntary for private parties. The Digital Asset Issuance Law (LEAD) governs issuances and services under the supervision of the CNAD, with separate registers for service providers, issuers, issuances and certifiers. A Salvadoran authorisation is not a passport: offering tokens to investors in another country also requires reviewing the rules of that market.
See blockchain regulation in El SalvadorSalvadoran framework
Milestones enabling blockchain in El Salvador
The dates that set the LEAD in motion, from its publication to the first registered stablecoin issuers. Each milestone links to its source.
See the regulation guide for El SalvadorPublication of the Digital Assets Issuance Law
Legislative Decree 643 is published in Official Gazette 16, volume 438. Article 47 provides for commencement eight days after publication.
CNAD · Published LEADFirst DASP licence under LEAD announced
Bitfinex Securities El Salvador announces the first licence under the new framework. The milestone is attributed to the entity’s announcement and specific permission, without extending it to the rest of the group.
Bitfinex Securities · Licence announcementAmendment on certifications and settlement published
Decree 781 is published in Official Gazette 132, volume 440. It adds enforcement effects to certain certifications and provides for DASP access to payment and settlement systems with BCR authorisation.
Legislative Assembly · Decree 781First stablecoin issuer registrations reported by CNAD
According to the official communication of 29 July, Moon Gold El Salvador and Moon Gold NA were registered on 20 June as issuers EME-0001 and EME-0002. The registration date is distinguished from the news publication date.
CNAD · Registration announcement
Reviews in El Salvador
What do our clients think of Metlabs?
“We structured the tokenization of real estate projects with them, and I value the team's ability to understand our corporate needs and genuinely solve them.”
Joan MejíaManager, GLOBYNE
“They advised us on the feasibility of tokenizing real estate assets in Uruguay with direct, cordial treatment. A professional team, responsive and always available.”
Álvaro Silva SantamaríaCEO, Sp Inmuebles
“Great professionals at structuring tokenized projects, with technical command and attention to detail that inspire full confidence at every stage of the work.”
Francisco BetancourtVerified Google review
“As a blockchain lawyer, I value their experience and professionalism in consulting and executing tokenization projects. Technology partners you can fully trust.”
Vanessa RivasBlockchain lawyer, El Salvador
“Great professionals, very attentive to their clients and always mindful of every detail. Working with their team has been a genuine pleasure from start to finish.”
CriptorentVerified Google review
“A very professional yet approachable company that empathizes with your doubts and needs. Highly recommended for entrepreneurs with a tokenization project.”
Javier EspasaTokenization entrepreneur
“Exceptional in every sense. From legal support I value their rigor and transparency: working with Metlabs means professionalism, innovation and security.”
Pedro A. Agúndez MéndezGoogle Local Guide
“Excellent service across blockchain development, asset tokenization and consulting. A very professional team that I recommend wholeheartedly, without reservation.”
José Luis DíazVerified Google review
“I have worked with them on several projects and they are very professional. A guarantee that everything turns out perfectly. Without a doubt, 100% recommended.”
Ignacio Fernández JiménezVerified Google review
“One of the pioneering firms in web3 solutions, digital assets and tokenization, recognized for its innovation and solid reputation across Spain and Latin America.”
Jorge CorredorLawyer, Rincón Cuéllar & Asociados
“Great professionals at structuring tokenized projects, with technical command and attention to detail that inspire full confidence at every stage of the work.”
Francisco BetancourtVerified Google review
“A very professional yet approachable company that empathizes with your doubts and needs. Highly recommended for entrepreneurs with a tokenization project.”
Javier EspasaTokenization entrepreneur
“I have worked with them on several projects and they are very professional. A guarantee that everything turns out perfectly. Without a doubt, 100% recommended.”
Ignacio Fernández JiménezVerified Google review
“We structured the tokenization of real estate projects with them, and I value the team's ability to understand our corporate needs and genuinely solve them.”
Joan MejíaManager, GLOBYNE
“As a blockchain lawyer, I value their experience and professionalism in consulting and executing tokenization projects. Technology partners you can fully trust.”
Vanessa RivasBlockchain lawyer, El Salvador
“Exceptional in every sense. From legal support I value their rigor and transparency: working with Metlabs means professionalism, innovation and security.”
Pedro A. Agúndez MéndezGoogle Local Guide
“They advised us on the feasibility of tokenizing real estate assets in Uruguay with direct, cordial treatment. A professional team, responsive and always available.”
Álvaro Silva SantamaríaCEO, Sp Inmuebles
“Great professionals, very attentive to their clients and always mindful of every detail. Working with their team has been a genuine pleasure from start to finish.”
CriptorentVerified Google review
“Excellent service across blockchain development, asset tokenization and consulting. A very professional team that I recommend wholeheartedly, without reservation.”
José Luis DíazVerified Google review
Security
Security in blockchain development in El Salvador
Every delivery goes through the same checklist before it reaches mainnet. What changes between projects is the depth of each control, because an MVP does not carry the same risk as a contract that holds third-party funds.
Before mainnet
- Roles and permissions defined for every critical function
- Unit and invariant tests, and fuzzing on the logic that moves value
- Static analysis and peer review of every change
- Multisig and timelock on administration when the risk justifies it
- Custody and rotation of the deployment keys agreed
- External audit when the value at risk requires it
We work with leading audit firms
FAQ
Frequently asked questions about blockchain development in El Salvador
What we are asked before a project starts.
Talk to our teamWhich regulations apply to a blockchain project in El Salvador?
It depends on what each party does. Anyone providing services to clients registers as a provider with the CNAD in two stages: a non-objection to the pre-registration and then the final registration. A public offering needs a registered structurer, a Relevant Information Document and a certifier's report; a private one is addressed to no more than 50 qualified investors and has its own non-objection. The UIF handles anti-money laundering oversight. We analyse the fit of your case before writing any code.
Do you work with both startups and established companies?
Yes. We support startups from MVP validation to their first funding round, and established companies on tokenization, traceability and digital identity projects with strict compliance requirements. Smart contracts go through tests and review before they reach mainnet, whatever the size of the project.
How do you work with Salvadoran companies?
In Spanish and in direct contact with the people who design and build the product. We concentrate meetings in your working hours, and the rest of the work moves forward through shared documentation, written decisions and a stable technical channel.
How long does blockchain development take?
It depends on product complexity, integrations and the level of review it needs. Before development we set scope, dependencies and phase deliverables, so you can decide what reaches production first and what waits for a second iteration. An MVP is not treated as if it were the complete architecture.
Which blockchain network is right for my project?
The one the product requirements call for, not the one in fashion. For EVM projects we compare Ethereum, Polygon, Arbitrum or Base on finality, costs, tooling, interoperability, custody and compliance, and we consider non-EVM networks when they fit better. The recommendation covers contracts, indexing, wallets and operations, with the product's users in mind.
Let's build the rails for your project in El Salvador
Tell us about your case and we'll propose architecture, timeline and budget within a week.
Where we work in El Salvador
We work remotely with teams throughout the country, and on site where the project calls for it.
Territorial coverage
- Ahuachapán
- Cabañas
- Chalatenango
- Cuscatlán
- La Libertad
- La Paz
- La Unión
- Morazán
- San Miguel
- San Salvador
- San Vicente
- Santa Ana
- Sonsonate
- Usulután
Blog
Articles on tokenization and smart contracts
What is tokenization of companies and startups? Essential guide 2026
Rights, company form, DLT records and funding routes: criteria for structuring a company issuance without assuming liquidity.
Real Asset Tokenization: How RWA Tokenization Works
How to structure an RWA project: holder rights, issuance, recordkeeping, payments and recovery. What blockchain adds and what depends on the legal arrangement.
Smart contract certification: what an audit demonstrates
What a smart contract audit should cover, how to verify its scope and why a report cannot guarantee security or legal compliance.
Where we are
Blockchain development in El Salvador and worldwide
Metlabs Offices
Av. García Sabell, 1, Edificio Proa 15009 A Coruña, Spain
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