Developer Guide

Local environment

Get a Paxeer development environment running in minutes. Standard EVM tooling against Chain ID 125, plus the Agent SDK.

Prerequisites

Node.js 20+
pnpm, npm, or yarn
Python 3.10+ if you're building with the Python SDK
A wallet funded with PAX for gas

Quick start

Install toolchain

npm install -g hardhat
curl -L https://foundry.paradigm.xyz | bash && foundryup

Bootstrap project

npx create-pax-app@latest my-agent

Configure network (Hardhat)

// hardhat.config.ts
networks: {
  paxeer: {
    url: 'https://public-rpc.paxeer.app/rpc',
    chainId: 125
  }
}

Deploy a contract

npx hardhat run scripts/deploy.ts --network paxeer

Install the Agent SDK

npm install @paxeer/sdk
# or for Python
pip install paxeer

Network configuration

Network name

Paxeer Network mainnet

EVM chain ID

125

Cosmos chain ID

hyperpax_125-1

Bech32 prefix

pax

Public RPC

https://public-rpc.paxeer.app/rpc

Explorer

https://paxscan.io

Recommended tools

Foundry

Fast testing framework and CLI toolkit. The default for new Paxeer projects.

Hardhat

Mature TypeScript-first development environment for compiling, testing, and deploying.

Remix IDE

Browser-based IDE point it at Chain ID 125 for quick prototyping.

ethers / viem / wagmi

All standard JS/TS Ethereum tooling works against Paxeer's EVM layer.

@paxeer/sdk

TypeScript SDK with first-class wallet, payments, registry, and reputation primitives.

paxeer (Python)

Python SDK for agent frameworks. Same primitives, idiomatic Python.

Need help?

Join Discord for developer support, or open the docs for the full SDK reference.

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