Networks & Assets

Faremeter supports multiple blockchain networks and assets. The @faremeter/info package provides lookup utilities for network configuration and asset details.

Supported networks

Solana

Network	Identifier	Status
Devnet	`devnet`	Supported
Testnet	`testnet`	Supported
Mainnet Beta	`mainnet-beta`	Supported

EVM

Network	Identifier	Chain ID	Status
Base	`base`	8453	Supported
Base Sepolia	`base-sepolia`	84532	Supported
SKALE Europa Testnet	`skale-europa-testnet`	1444673419	Supported
Polygon PoS	`eip155:137`	137	Supported (CAIP-2)
Polygon Amoy	`eip155:80002`	80002	Supported (CAIP-2)
Monad	`eip155:143`	143	Supported (CAIP-2)
Monad Testnet	`eip155:10143`	10143	Supported (CAIP-2)

EVM networks support CAIP-2 format identifiers. Networks like Base Sepolia and Base have short aliases (base-sepolia, base). Others use the full CAIP-2 format (eip155:<chainId>).

Supported assets

Asset	Solana	EVM
USDC	Devnet, Mainnet	Base, Base Sepolia, SKALE, Polygon PoS, Polygon Amoy, Monad, Monad Testnet
PYUSD	Devnet, Mainnet	—
USDT	Mainnet	—
USDG	Devnet, Mainnet	—
USD1	Mainnet	—
USX	Mainnet	—
CASH	Mainnet	—
EURC	Devnet, Mainnet	—
JupUSD	Mainnet	—
USDS	Mainnet	—
USDtb	Mainnet	—
USDu	Mainnet	—
USDGO	Mainnet	—
FDUSD	Mainnet	—
SOL	Devnet, Testnet, Mainnet	—

Using `@faremeter/info`

The info package provides helpers to construct payment requirements with correct network and asset details.

Solana

import { x402Exact } from "@faremeter/info/solana"

const requirements = x402Exact({
  network: "devnet",
  payTo: "7xKXwxRPMo2sUAT5...",
  asset: "USDC",
  amount: "10000",
})

EVM

import { x402Exact } from "@faremeter/info/evm"

const requirements = x402Exact({
  network: "base-sepolia",
  asset: "USDC",
  amount: "10000",
  payTo: "0x1234...",
})

Network aliases

The info package resolves network aliases to canonical identifiers. For example, "devnet" resolves to the correct Solana devnet RPC endpoint, and "base-sepolia" resolves to the correct EVM chain ID and RPC.

Configuring custom networks

When using the lower-level packages (@faremeter/fetch, @faremeter/payment-*), you can pass custom network configuration directly to wallet and handler factory functions. See the API Reference for the full configuration options.

Getting Started

Concepts

Client

Server

Flex

Recipes

Marketplace

Support

Supported networks

Solana

EVM

Supported assets

Using `@faremeter/info`

Solana

EVM

Network aliases

Configuring custom networks

Further reading

​Supported networks

​Solana

​EVM

​Supported assets

​Using @faremeter/info

​Solana

​EVM

​Network aliases

​Configuring custom networks

​Further reading

Supported networks

Solana

EVM

Supported assets

Using `@faremeter/info`

Solana

EVM

Network aliases

Configuring custom networks

Further reading