“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
Blockchain infrastructure. The network, wired to your stack.
We deploy and run RPC nodes, indexers and APIs so your product reads from and writes to the network with reliable data, alerts and a plan for provider outages.
They trust Metlabs with their blockchain projects
Infrastructure
What infrastructure does an on-chain product need?
It needs reliable network access and structured data. RPC nodes send transactions and read state, an indexer turns your contract events into a queryable database and an API delivers them to your systems. Without redundancy and monitoring, a provider outage stops your product even while the network keeps running.
12 s
per block slot on Ethereum
Ethereum.org · 2026
15 min
approx. until an Ethereum block is final
Ethereum.org · 2026
12TB+
of disk for a Geth archive node
Ethereum.org · 2026
What's included
What our blockchain infrastructure services include.
Infrastructure only gets noticed when it fails. Every piece shortens the time between something breaking on the network and your team knowing and fixing it.
RPC nodes
Dedicated or managed nodes per network, with diverse clients so you never depend on one codebase.
Event indexing
Indexers that turn your contract events into tables and handle chain reorganizations.
APIs for your systems
REST or GraphQL endpoints and webhooks that bring on-chain activity into your ERP or backend.
RPC failover
Multiple RPC sources with retries and automatic switching when one fails or falls behind.
Monitoring and alerts
Latency, block height and indexer lag on dashboards, with alerts routed to whoever is on call.
Operational keys
Service signing keys in an HSM or key manager, with least-privilege access and rotation.
Architecture decision
Dedicated nodes, managed RPC or hybrid?
It sets how much you control, how much you operate and what happens when something fails. A managed RPC provider gets you started fast, dedicated nodes give privacy and control, and a hybrid setup combines both so no single source can stop you.
| Criterion | Dedicated nodes | Managed RPC | Hybrid |
|---|---|---|---|
| Control and privacy | Full. Queries never leave your infrastructure. | The provider sees the addresses your app queries. | Sensitive queries go only to your own nodes. |
| Availability | Whatever you design, with redundancy and diverse clients. | Their SLA, with request limits per plan. | Automatic failover if one source goes down. |
| Cost and operations | Servers, multi-terabyte disks and your own on-call. | Pay per use, with no servers to run. | More moving parts and less dependency. |
| Typical fit | Validators, full history and sensitive data. | MVPs and apps with moderate traffic. | Production products that cannot stop. |
In production we recommend at least two RPC sources and an indexer that does not depend on a single one.
Methodology
How we deploy your blockchain infrastructure.
Four phases, each with a deliverable. We size before we deploy, and no service takes real traffic without dashboards and alerts.
Which networks, which node type and what query volume, with the cost of each option in writing.
Which events get indexed, how block reorganizations are handled and what the API exposes.
Contracts, indexer and API tested against a network fork before real traffic is switched on.
Dashboards, alerts and a runbook with the response to each failure, for your team or ours.
Tools to read from and write to the network.
Services in Go and Node.js, indexing with The Graph and the networks we connect to your systems.
- Go
The language of Ethereum, Cosmos nodes and infrastructure services.
- Node.js
A JavaScript runtime for backends, indexers and server-side Web3 services.
- TypeScript
Types for blockchain interfaces, SDKs and services, with fewer errors in production.
- The Graph
A network of indexers for querying blockchain data with GraphQL.
- Ethereum
EVM contracts, tokens and final settlement on an open Proof of Stake network.
- Arbitrum
Arbitrum One: EVM execution and layer 2 tooling on top of Ethereum.
Use cases
Where we deploy blockchain infrastructure.
Products where late data or a lost transaction carries a real cost for the business.
Payment reconciliation
Every stablecoin payment reaches accounting with its on-chain confirmation and its reference.
Blockchain for Banking & Finance
Traceability into the ERP
Events for every batch are indexed and flow into the ERP without anyone copying them by hand.
Blockchain for Supply Chain & Logistics
Verifiable public records
Dedicated nodes so a public agency can verify its records without relying on someone else's API.
Blockchain for Public Sector
Certificates of origin
Renewable energy certificates available through an API to auditors, customers and regulators.
Blockchain for Energy & Sustainability
Reviews
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
Team
In-house blockchain development team
Metlabs is a blockchain development company based in A Coruña, Spain. An in-house team covers every part of the project, from product and engineering to infrastructure and legal fit. The people who design your architecture write, test and deploy the code.
Meet the team- Projects in production
- +30
- In tokenized assets
- +$40M
- In‑house development
- 100%
Isaac González
Head of Innovation
Carlos Peña
Full Stack Engineer
Pablo Castro
DevOps Engineer
Helena Ramos
Product Designer
Javier Yáñez
Legal
Security
Security in blockchain infrastructure
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
Blockchain development
More blockchain development services.
Build the product
Connect your operations
Represent assets and rights
Blog
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Let's build the rails for your product.
Tell us which networks you use and which systems need to read them. We start with the architecture and sizing.
