The Tool Desk
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Choose the right transfer method
World Chain is an Ethereum layer-2 network and the primary network World App interacts with. Legacy bridged WLD may also be on Optimism. If assets are in World App on Optimism and the app offers migration, that is different from using a third-party bridge; follow the in-app flow. For assets in another wallet or network, treat the transfer as a general bridge transaction. World’s developer FAQ describes World Chain and legacy WLD on Optimism.
Migrate legacy World App assets from Optimism
- Open World App and follow the migration prompt when it appears.
- Tap Start migration and follow the on-screen steps. World Help Center guidance says the process takes minutes.
- If assets arrive on Optimism after migration, they can be migrated when the app presents the flow.
World advises using World Chain for future transactions. See the World App migration instructions.
Bridge from another wallet or network
Choose a bridge that currently supports the precise asset, source network, destination network, and direction you need. World has previously named Synapse, Across, and Superbridge, but past announcements do not guarantee that any particular route is still available.
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Check the route before bridging
On the provider’s current interface, select the source network, destination network, token, and direction. Confirm the receiving wallet supports that token on World Chain, then review the quote and transaction details before approving.
- Token and direction: Support for a token arriving on World Chain does not imply that the same bridge supports sending it back.
- Total cost: Review all displayed network and service fees. World’s statement that it currently sponsors gas for certain World App actions does not apply to independent bridge services, and that policy may change. World’s FAQ describes the limited gas-sponsorship arrangement.
- Amount and timing: Check any minimum or maximum and the estimated time shown for that live transfer. There is no universal fee or completion time established for these routes.
- Receiving wallet: Confirm it can receive the exact asset on World Chain before sending. World says unsupported assets or an incorrect network can result in permanent loss; its receiving instructions explain how to select a supported token and World Chain in World App.
What the named bridge integrations cover
World’s announcements document integrations at the time they were published, not guaranteed current availability. Use them as historical descriptions of scope, then verify the route in the provider’s live interface.
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| Bridge or route | Scope stated in World material | What to verify now |
|---|---|---|
| Synapse | In October 2024, World said Synapse supported USDC bridging and was the first bridge for fast WLD transfers to and from World Chain. World’s October 2024 announcement. | Current availability, exact networks, token contracts, fees, limits, and transfer time. |
| Across | In November 2024, World announced inbound bridging to World Chain for ETH, wETH, USDC, and wBTC from other chains. That announcement did not establish those assets’ outbound routes. World’s November 2024 announcement. | Whether the desired asset and direction are currently supported, plus the live quote and limits. |
| Superbridge | World’s tokenomics whitepaper says WLD can be bridged back to Ethereum through the OP Stack Superbridge. A World announcement also cites Superbridge as an example of a third-party route to World Chain. Neither establishes current route availability or quote details. World tokenomics whitepaper; World’s Morpho Mini App announcement. | Supported token, networks, direction, contract, fees, limits, and estimated time in the live interface. |
Verify WLD token identity
A ticker alone is not enough to identify a token: check the network and contract address shown by a trusted current explorer or bridge interface. World’s tokenomics whitepaper lists these WLD addresses:
- Ethereum WLD:
0x163f8C2467924be0ae7B5347228CABF260318753 - World Chain WLD:
0x2cFc85d8E48F8EAB294be644d9E25C3030863003
These are identifiers published in the whitepaper, not a substitute for checking the current contract details before a transfer. The same document warns about risks from third-party bridges and tokens bridged through them; the World Foundation and its affiliates do not take responsibility for third-party bridges or those tokens.
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Review and confirm safely
- Check the source and destination networks, token, destination address, and amount.
- Read the full live quote, including fees, any limits, and the estimated time.
- Approve only when every detail matches your intent. Blockchain transactions are not readily reversible; World’s support guidance warns that transactions are irreversible.
World has also said it does not endorse external links and is not responsible for them in its announcement naming third-party routes. A bridge’s appearance in World materials is not a guarantee of its safety or present operation.
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