Biconomy Paymaster
Biconomy Paymaster is an ERC-4337 compliant paymaster that abstracts gas complexities with flexible payment options.

What is Biconomy Paymaster?
Biconomy Paymaster is an ERC-4337 compliant paymaster that abstracts gas complexities with flexible payment options to increase user acquisition and retention. Developers can easily offer a variety of gas abstraction options on their dApp with just a single Paymaster setup and integration. By configuring policies on the Biconomy dashboard, dApps can create different conditions such as 'holds Pioneer NFT' or 'first 20 transactions' to decide how & when to abstract gas complexities.
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Developer resources from Alchemy

What is a bundler? (ERC-4337)
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ERC-1271 signature replay vulnerability
On October 27th 2023, Alchemy discovered a ERC1271 contract signature replay vulnerability that affected a large number of smart contract accounts (SCA), and led to risks when interacting with several applications.

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Biconomy Paymaster alternatives
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App store listings are independently reviewed and written by Alchemy using a combination of inbound submissions, editorial research, public project sources, and third-party directories, including ecosystem data from The Grid under the Open Database License, DefiLlama, DappRadar, Reown, and chain ecosystem pages.

