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PRBProxy

PRBProxy is a Solidity forwarding proxy and registry system that lets an Ethereum proxy owner compose multiple contract calls in one transaction through delegatecall.

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Independent OpenViST project profile, based on linked sources.

PRBProxy — OpenViST project profile in Smart Contracts.
OpenViST project illustration. See the linked sources for product details.
Understand the project

Practical overview

When it fits

Use PRBProxy when an Ethereum application needs a smart-wallet-style execution layer rather than direct calls from an externally owned account, especially when transaction composition or modular proxy execution is part of the design.

Who it is for

  • Solidity developers building Ethereum smart-contract systems.
  • Teams designing modular DeFi transaction routers.
  • Projects that need proxy-based execution, deterministic addresses, plugins or envoy access control.

Documented uses

  • Bundle multiple Ethereum contract interactions into one transaction.
  • Deploy owner-specific proxies through a registry.
  • Forward calls to target contracts using delegatecall.
  • Allow authorized envoys to call target contracts for a proxy owner.
  • Add callback-oriented behavior through plugins.
Before you choose

Requirements & limits

The repository is public, active, MIT-licensed and written in Solidity. It documents Node.js package installation, a Foundry remapping, and an alternative Git submodule installation. PRBProxyRegistry is documented as deployed on more than 10 chains.

  • The system forwards calls with DELEGATECALL, so integrating applications must account for delegatecall execution semantics.
  • CREATE2 provides deterministic proxy addresses and lets clients pre-compute an address.
  • A registry assigns each user a distinct proxy.
  • Envoy access control supports third-party calls on behalf of an owner.
  • Plugins provide a documented extension point for callbacks.

Check current requirements in the official documentation. Source-based guidance does not mean OpenViST has run or independently tested this project.

Source-based practical guide

Add PRBProxy to a Foundry project

Install the PRBProxy package and configure the documented Foundry remapping.

Before you start

  • A Node.js package manager such as Bun.
  • A Foundry-based Solidity project.

Steps

  1. Install the package with the project’s package manager using the documented @prb/proxy package.

  2. Add the documented @prb/proxy/=node_modules/@prb/proxy/ entry to remappings.txt.

  3. Use the library from the Foundry project.

Expected outcome

The project has PRBProxy available through the documented Node.js and Foundry installation path.

Guide limitations

  • This procedure documents installation and remapping only; it does not demonstrate deployment or execution.
  • The repository also documents a Git submodule route, but describes it as not recommended.
Documentation 1 ↗
Evidence and transparency

Sources & review

Official repository ↗
Source record details
Source availability
Active
Sources checked
2 October 2026
Original website title
PaulRBerg/prb-proxy · Official homepage title · retained in its source language
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Related options

DSProxy — The repository presents PRBProxy as a modern successor with CREATE2 deployment, plugins and other design differences.

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