Cómo Conectar Criptomonedas Entre Cadenas
Move tokens from one blockchain to another without an exchange. This guide explains how bridges work, which bridge to use for which route, what it costs, and how to avoid the common mistakes.
¿Qué es un puente cripto?
A crypto bridge is a protocol that moves tokens from one blockchain to another. Blockchains such as Ethereum, Arbitrum, Base and Polygon are separate networks, each with its own state and transaction history. They cannot read each other's data. Bridging is the mechanism that carries value across that gap.
Without bridges, moving assets between chains would mean selling on one chain, going through an exchange, and buying again on the other. A bridge lets you transfer tokens straight from your wallet, usually in a single transaction that completes in minutes.
Los puentes son importantes porque la actividad se distribuye entre muchas cadenas. Layer 2 rollups como Arbitrum y Base cobran comisiones de gas más bajas que Layer 1 Ethereum, pero tus activos tienen que llegar allí primero. Ya sea que quieras DeFi más barato, un exchange de Layer 2 o reunir tokens dispersos entre cadenas, un puente es la herramienta para el trabajo. Ethereum.org mantiene una descripción general de los diseños de puentes y sus ventajas y desventajas (ver Fuentes).
Transferencias entre cadenas
Move ETH, USDC and other tokens between Ethereum, Arbitrum, Base, Optimism and Polygon, usually in minutes.
Acceder a tarifas más bajas
Bridge to Layer 2 chains, where a transaction costs a fraction of the same transaction on Ethereum mainnet. Learn about gas fees.
No custodial
Bridge directly from your wallet. No exchange account is needed, and you keep control of your keys throughout.
Cómo funcionan los puentes de criptomonedas
All bridges solve the same problem: blockchains cannot read each other's state. Each bridge uses a different method to verify that a deposit happened on the source chain before releasing tokens on the destination chain. Knowing the method tells you what you are trusting.
Bloqueo & Emisión
The most common design. You deposit (lock) tokens in a smart contract on the source chain. The bridge verifies the deposit and mints the same amount of wrapped tokens on the destination chain. The wrapped tokens are a claim on the locked originals.
For example, when you send ETH from Ethereum to Arbitrum through the canonical Arbitrum bridge, your ETH is held in the Arbitrum bridge contract on Ethereum and the same amount of ETH is credited to your address on Arbitrum. Bridging back reverses the process: the ETH leaves Arbitrum and the original ETH is released on Ethereum (see the Arbitrum docs in Sources).
Quemar & Liberar
The reverse of lock and mint. Wrapped tokens on the destination chain are burned (destroyed), and the originals are released from the lock contract on the source chain. This is how withdrawals from a Layer 2 rollup back to Ethereum work.
Canonical bridges of optimistic rollups (Arbitrum, Optimism, Base) hold withdrawals for a challenge period of about seven days. During that window anyone can submit a fraud proof if the withdrawal is invalid. The delay is a security feature: it ensures that only valid withdrawals are released. The exact window is set by each rollup and published in its docs (see Sources).
Puentes de pools de liquidez
Instead of locking and minting, some bridges keep liquidity pools on several chains. When you deposit tokens on chain A, you receive tokens from the pool on chain B. This is much faster than lock and mint because the user does not wait for the slow canonical path.
Stargate and Across both rely on liquidity provided by third parties, who earn fees from transfers. The trade-off is that these bridges depend on enough liquidity being available on the destination chain: a large transfer can face a worse quote or a wait until liquidity is replenished.
Protocolos de mensajería
Cross-chain messaging protocols such as LayerZero and Wormhole provide a general communication layer between blockchains. Beyond moving tokens, they can carry arbitrary data and instructions across chains. Bridges built on them use the messaging layer to verify deposits and trigger releases.
LayerZero uses decentralized verifier networks (DVNs) to validate messages. Wormhole relies on a set of guardian nodes that sign attestations of on-chain events. The security of any bridge built on these layers depends on the verifiers or guardians behaving honestly.
Puentes Cripto Populares
The right bridge depends on the chains involved, how fast you need the transfer, and how much security you want. Here are the bridges you are most likely to meet.
Puente Arbitrum (Oficial)
El puente canónico entre Ethereum y Arbitrum, gestionado por el propio rollup. Los depósitos tardan alrededor de 10 a 15 minutos. Los retiros esperan el período de desafío de aproximadamente siete días. Sin comisión de protocolo, solo gas. Se liquida en Ethereum, por lo que no conlleva suposiciones de confianza adicionales más allá del propio rollup.
Ideal para: Transferencias grandes donde la seguridad importa más que la velocidad.
Puente Base (Oficial)
The canonical bridge of Base, the Layer 2 built by Coinbase on the OP Stack. Deposits from Ethereum take around 10 to 15 minutes. Withdrawals wait for the challenge period of about seven days. It supports ETH and most ERC-20 tokens with no protocol fee. Base's docs list the front ends you can use to access it (see Sources).
Ideal para: Mover activos a Base desde Ethereum con máxima seguridad.
Stargate Finance
A liquidity pool bridge built on LayerZero. It connects Ethereum, Arbitrum, Base, Optimism, Polygon, Avalanche, BNB Chain and others; the current list is in the Stargate docs. Transfers usually complete in minutes. Stargate pools liquidity across chains to keep the received amount close to the sent amount.
Ideal para: Transferencias rápidas multicadena, especialmente stablecoins.
Across Protocol
Un puente basado en intenciones. Usted declara lo que desea recibir en la cadena de destino, y relayers independientes lo entregan con sus propios fondos, luego son reembolsados desde la cadena de origen después de que el oráculo optimista UMA verifique la ejecución. Las transferencias suelen completarse en minutos, y la comisión se cotiza antes de que usted confirme.
Ideal para: Transferencias rápidas y de bajo costo entre cadenas principales.
Wormhole
A cross-chain messaging protocol that connects EVM chains with non-EVM chains such as Solana, Sui and Aptos. A set of guardian nodes validates messages, which supports both token transfers and general data messaging. Portal is the main token bridge built on Wormhole. In February 2022, a bug in the Wormhole Solana contract was exploited for about $325 million, one of the largest bridge incidents on record.
Ideal para: Puentes entre cadenas EVM y no EVM (Solana, Sui).
LayerZero
A cross-chain messaging protocol that powers bridge applications including Stargate. Developers build omnichain applications on it, choosing which decentralized verifier networks (DVNs) must confirm a message. The supported chain list is in the LayerZero docs (see Sources).
Ideal para: Capa de infraestructura para desarrolladores que crean aplicaciones entre cadenas.
Después de hacer el puente: Gana 7.50% APY en USDC
Once you have bridged USDC to your preferred chain, put it to work. Coinstancy Dollar Savings offers 7.50% APY on USDC. Interest accrues every second and is automatically reinvested. No lock-up period, withdraw anytime.
Comienza a ganar en CoinstancyCómo transferir cripto (paso a paso)
The process is similar on most bridges. Here is a walkthrough of a typical bridge interface, using ETH from Ethereum to Arbitrum as the example. Button labels change over time, so follow the meaning of each step rather than the exact wording.
Conecta tu billetera
Open the bridge website from a link in the project's official documentation (for the Arbitrum bridge, the Arbitrum docs) and connect your wallet. MetaMask, Rabby, Coinbase Wallet and WalletConnect work with most bridges. Make sure the wallet is on the source chain, the chain you are sending from.
Selecciona cadenas de origen y destino
Choose the chain you are sending from and the chain you are sending to. For our example, select Ethereum as the source and Arbitrum One as the destination. Third-party bridges such as Across or Stargate let you pick from many chain pairs.
Seleccionar token y cantidad
Elige el token (ETH, USDC, etc.) e introduce la cantidad. El puente muestra la cantidad estimada que recibirás, las comisiones y el tiempo previsto. Mantén suficiente ETH en la cadena de origen para pagar la comisión de gas de la transacción del puente.
Aprobar el token (solo ERC-20)
If you are bridging an ERC-20 token such as USDC (not native ETH), you first approve the bridge contract to move your tokens. This is a separate on-chain transaction, once per token per bridge. Your wallet asks you to confirm it and lets you set an exact amount instead of an unlimited approval. Prefer the exact amount.
Confirmar la transacción del puente
Start the transfer and confirm it in your wallet. This sends your tokens to the bridge contract on the source chain and costs a gas fee. Before you confirm, check the destination chain, the token, the amount and the receiving address.
Espere la confirmación
After the transaction confirms on the source chain, wait for the bridge to process it. Canonical rollup bridges take around 10 to 15 minutes for deposits. Third-party bridges such as Across usually finish within minutes. The bridge interface shows the status. Once it is done, switch your wallet to the destination network to see the tokens.
Seguridad del puente: Proteja sus activos
Bridges are among the most attacked pieces of crypto infrastructure because they hold large pools of locked value. The two largest incidents on record are the Ronin bridge exploit of March 2022 (about $625 million) and the Wormhole exploit of February 2022 (about $325 million). Chainalysis publishes yearly figures on funds stolen from bridges and other protocols (see Sources). The habits below reduce your exposure.
Verifique la URL
Abra los sitios web de puentes desde un marcador o desde un enlace en la documentación oficial del proyecto. Los sitios de phishing copian de cerca las interfaces de puentes populares. Verifique el dominio antes de conectar su billetera. La documentación de cada proyecto enumera su dirección oficial de puente (consulte Fuentes).
Comience con una prueba pequeña
Before bridging a large amount, send a small test transfer first and confirm the tokens arrive on the destination chain. It costs an extra gas fee, but it catches a wrong network, a wrong address or a broken interface before real money is at stake.
Preferir puentes oficiales
For large transfers, use the canonical rollup bridge (Arbitrum, Optimism, Base) whenever the wait is acceptable. These bridges settle on Ethereum. Third-party bridges are faster but add trust assumptions and their own smart contract risk.
Verificar direcciones de contrato
Antes de aprobar un gasto de tokens, compara la dirección del contrato inteligente con la que figura en la documentación oficial del puente. Un contrato malicioso puede vaciar tu cartera. Utiliza un explorador de bloques como Etherscan o Arbiscan para verificar que el contrato esté verificado y coincida.
Tarifas de puente & comparación de velocidad
Bridge costs and transfer times depend on the bridge type, the direction of transfer and network congestion. The table below summarises the main routes. Timing and fees are indicative and come from each project's documentation (see Sources); the bridge interface always shows the live quote. Understanding gas fees helps you estimate the total cost.
| Puente | Tiempo de depósito | Tiempo de retiro | Tarifa del Protocolo | Modelo de seguridad |
|---|---|---|---|---|
| Puente Arbitrum | Aproximadamente 10 a 15 min | Aproximadamente 7 días | Solo gas | Ethereum L1 |
| Puente Base | Aproximadamente 10 a 15 min | Aproximadamente 7 días | Solo gas | Ethereum L1 |
| Puente Optimism | Aproximadamente 10 a 15 min | Aproximadamente 7 días | Solo gas | Ethereum L1 |
| Polygon PoS Bridge | Tens of minutes | Up to a few hours | Solo gas | Validadores PoS |
| Across Protocol | Minutes | Minutes | Cotizado por transferencia | Oráculo optimista UMA |
| Stargate Finance | Minutes | Minutes | Cotizado por transferencia | DVNs de LayerZero |
Note: gas costs move with network congestion. A deposit from Ethereum mainnet costs mainnet gas, which is the largest part of the bill; a Layer 2 transaction costs far less. Check a live gas tracker before you bridge. Third-party protocol fees are charged on top of gas. Weigh the total cost against the yield you expect on the destination chain before moving small amounts.
Problemas comunes de puente & Soluciones
Bridging usually goes smoothly, but things can go wrong. Here are the most common issues and how to fix them.
Transacción atascada (Tokens no llegan)
El problema más común. Tu transacción se confirmó en la cadena de origen, pero no han aparecido tokens en la cadena de destino. Las causas incluyen congestión en la cadena de destino, un retraso en el procesamiento del bridge, o un secuenciador o relayer pausado.
Fix: check the bridge's status page or its transaction history view, where pending transfers are listed. For canonical rollup bridges, allow the full deposit time (around 10 to 15 minutes). If the transaction is confirmed on the source chain, your funds are safe. If nothing has arrived after an hour, contact the bridge's support through the channel listed in its official docs.
Red Incorrecta Seleccionada
Has realizado un puente a la cadena de destino incorrecta (por ejemplo, Optimism en lugar de Arbitrum). Esto no es fatal: aún conservas tus tokens. Deberás realizar un puente de nuevo desde esa cadena a la correcta, lo que conlleva otra comisión.
Fix: switch your wallet to the chain you landed on, confirm the tokens arrived, then bridge them to the right chain. A third-party bridge such as Across handles Layer 2 to Layer 2 routes without passing through Ethereum. To prevent it, re-read the destination chain before you confirm.
Gas insuficiente en la cadena de destino
Your tokens arrived, but you cannot do anything with them because you have none of the native gas token (ETH on Arbitrum and Base, POL on Polygon) to pay for transactions.
Solución: algunos puentes ofrecen una opción de gas en el destino que entrega una pequeña cantidad del token nativo con tu transferencia. Si la omitiste, retira una pequeña cantidad del token de gas desde un exchange centralizado directamente a tu dirección en la cadena de destino. Algunas carteras, como Rabby, también ofrecen una recarga de gas entre cadenas.
Transacción de puente revertida
The bridge transaction reverted on the source chain, which means it failed before your tokens moved. You lose only the gas fee, not the tokens. Common causes: an approval that is too small, a quote that moved beyond your slippage tolerance (on liquidity pool bridges), or a paused bridge contract.
Fix: read the revert reason on a block explorer. If the approval was too small, approve the token again for the right amount. If slippage caused it, try a smaller amount or wait for liquidity to recover. If the contract is paused, wait for the team's announcement or use another bridge.
Gana 7.50% APY en USDC con Coinstancy
Transfiere tus USDC mediante un puente y ponlos a trabajar con Dollar Savings. Los intereses se acumulan cada segundo y se reinvierten automáticamente. Sin periodo de bloqueo, retira cuando quieras.
Comienza a ganar hoyPreguntas frecuentes
¿Es seguro transferir cripto?
¿Cuánto tiempo tarda el puente?
¿Cuáles son los puentes más baratos?
¿Puedo transferir cualquier token entre dos cadenas?
¿Qué pasa si mi transacción de puente se queda atascada?
¿Necesito gas en ambas cadenas al hacer puente?
Continuar aprendiendo
Explora más guías sobre los fundamentos de DeFi y conceptos cripto.
¿Qué son las tarifas de gas?
Comprende cómo funcionan las tarifas de gas en Ethereum y redes de capa 2, y cómo minimizar los costos de transacción.
Leer Guía¿Qué es el APY en cripto?
Aprende cómo funciona el rendimiento porcentual anual en DeFi, incluyendo la frecuencia de capitalización y expectativas de retorno realistas.
Leer GuíaGuía CowSwap
Intercambia tokens con protección MEV e intercambios sin gas después de hacer puente a tu cadena preferida.
Leer GuíaPon tus activos puenteados a trabajar
Después de hacer el puente de tus tokens, haz crecer tus tenencias de USDC con Coinstancy. Gana un 7.50% de APY en USDC con Dollar Savings. Los intereses se acumulan cada segundo y se reinvierten automáticamente. Sin período de bloqueo, retira en cualquier momento.
Comienza a ganar en CoinstancyFuentes y lecturas adicionales
Las cifras y afirmaciones de esta página se basan en los documentos que aparecen a continuación. Las cifras sensibles al tiempo (tasas, rendimientos, comisiones, datos de mercado) cambian: verifica el valor en vivo en la fuente antes de actuar en consecuencia.
- Ethereum.org, Blockchain bridgesethereum.org
Qué es un puente, los principales diseños de puentes (bloqueo y acuñación, redes de liquidez, mensajería) y las suposiciones de confianza detrás de cada uno.
- Ethereum.org, Layer 2ethereum.org
Cómo funcionan los rollups, por qué las tarifas son más bajas en la Capa 2 y por qué los retiros de los rollups optimistas esperan un período de desafío.
- Arbitrum documentationdocs.arbitrum.io
The canonical Arbitrum bridge, deposit timing and the roughly one-week challenge period for withdrawals to Ethereum.
- Optimism documentationdocs.optimism.io
The OP Stack standard bridge used by Optimism and Base, and the fault-proof window for withdrawals.
- Base documentationdocs.base.org
Bridging to and from Base, and the bridge front ends Base points users to.
- Polygon documentationdocs.polygon.technology
El puente PoS de Polygon, su mecanismo de checkpoint y los tiempos típicos de depósito y retiro.
- Documentación de Across Protocoldocs.across.to
Intent-based bridging, relayers, the UMA optimistic oracle and how Across fees are quoted.
- Documentación de Stargatedocs.stargate.finance
Liquidity pool bridging on top of LayerZero, supported chains and fee parameters.
- LayerZero documentationdocs.layerzero.network
Cross-chain messaging and the decentralized verifier network (DVN) model.
- Chainalysis, Crypto Crime Reportchainalysis.com
Yearly figures on funds stolen in hacks, including the Ronin (March 2022) and Wormhole (February 2022) bridge exploits.
Última revisión: septiembre de 2026. Los enlaces externos se abren en una nueva pestaña; Coinstancy no es responsable de su contenido.
¿Listo para transferir & ganar?
Bridge your crypto to any chain, then earn 7.50% APY on USDC with Coinstancy Dollar Savings. Interest accrues every second and is automatically reinvested. No lock-up, withdraw anytime.