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Relay
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Introduction
  • Overview
  • What is Relaying?
Security Considerations
  • Overview
  • ERC2771 DelegateCall Vulnerability
How-To Guides
  • Create a Sponsor API Key
  • Send Sponsored Transactions
  • Allow your target contract to pay for gas
  • Allow your users to pay with ERC-20
  • Decode original msg.sender in target contract
  • Track your relay request
ERC-2771 (Recommended)
  • Overview
  • SponsoredCall ERC-2771
  • CallwithSyncFee ERC-2771
Non-ERC2771
  • SponsoredCall
  • CallwithSyncFee
Subscription & Payments
  • Overview
  • 1Balance & Relay
  • SyncFee Payment Tokens
  • Relay Pricing
API & Fee Oracle
  • Fee Oracle
  • Relay v2
  • Task Status
  • Gelato's Fee Oracle
Additional Resources
  • Templates
  • Supported Networks
  • ERC-2771 Migration Guide
Additional Resources

Templates

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Template

Hardhat Template

A template to get started using Gelato Relay with unit tests in your hardhat dev environment.

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Examples

Frontend & Backend Example

Repo showcasing how to call the relay from a React UI as well as from node.

Viem SDK Examples

Examples demonstrating how to use Gelato Relay with the Viem SDK.

Gelato's Fee OracleSupported Networks
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