Status: testnet. Numpay runs on Elysium testnet (chain 99801) with test crypto that has no real value. It uses its own backend and database, fully separate from the production app on Base.

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What is Elysium?

Elysium is Kinetiq’s Arbitrum Orbit chain. It settles to HyperEVM, the EVM side of Hyperliquid, and uses HYPE as its gas token. Being an Orbit chain, it’s fully EVM-compatible: the same smart-account contracts, the same ERC-4337 EntryPoint and the same tooling that Numpay uses on Base work on Elysium.

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Why Numpay is on Elysium

Hyperliquid ecosystem

Brings mobile-number payments to users and liquidity in the Hyperliquid / HyperEVM ecosystem.

Same wallet, new network

A user’s Numpay address is identical on Base and Elysium. No new account, no migration.

Still gasless

Pimlico’s paymaster pays HYPE gas for every operation, so users never need HYPE.

New: withdraw anywhere

Users can send crypto to any outside Elysium address, verified on-chain by the backend.

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How it fits together

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Base vs Elysium at a glance

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In this section

Using Numpay on Elysium

Sign in, get test crypto, send and request.

Withdrawals

Send crypto to any Elysium address, gas-free.

Architecture

Pimlico account abstraction, address parity, sweeps and gas costs.

Contracts and endpoints

Chain, token, EntryPoint, bridge and RPC details.

API changes

The WITHDRAW transaction type and on-chain verification.