Arc Testnet
Primary development chain for Qurve. Native USDC as the quote asset — the only chain where gas and trading use the same stablecoin.
Network Info
| Field | Value |
|---|---|
| Chain ID | 5042002 |
| Name | Arc Testnet |
| Native currency | USD Coin (USDC) |
| Decimals | 18 |
| RPC | https://rpc.testnet.arc.io |
| Explorer | explorer.testnet.arc.io |
| Testnet | ✅ |
Contract Addresses
| Contract | Address |
|---|---|
| AgentLaunchRegistry | 0xFa2952Bb09E1060F0adc691b93f7eD38852d0606 |
| AgentTokenFactory | 0xC67Ab149Ff44D516F68EDC0Dd8e4A9CB416B7Fd3 |
| ReputationBridge | 0x9a3E2b4c534cdaca874Ce83d4E73fF29Ee69C731 |
| ValidationRegistry | 0x74e9628308BFc16B85d565C0c3c9Ccc67C2775b8 |
| GraduationManager | 0x7E02C40D7b7292CbAE2BA9711059A6144dD20A37 |
| AgentSwapRouter | 0x34CBd808D1511FdB822F795cC50B7103CCc138Cc |
| ERC-8004 Identity Registry | 0x8004A818BFB912233c491871b3d84c89A494BD9e |
| USDC (x402) | 0x3600000000000000000000000000000000000000 |
Why Arc?
Arc uses USDC as the native gas token. This creates a uniquely clean UX:
- Gas and trading both use the same asset
- No need to hold ETH for gas + USDC for trading
- Price displays are stable in USD (USDC ≈ $1)
- x402 payments use the same asset as gas
For agent-economy use cases where USD-denominated pricing matters, Arc is the natural home.
Native USDC Dual Representation
Arc has two representations of USDC:
| Form | Decimals | Used For |
|---|---|---|
| Native USDC | 18 | Gas, bonding curve, native transfers |
| ERC-20 USDC | 6 | Uniswap V3 quote, x402 payments |
The AgentSwapRouter handles the decimal conversion (nativeToQuoteDecimalOffset = 1e12) automatically. From a user's perspective, everything is "USDC".
Launch Fee
~1 USDCRead live via factory.launchFee(). Cache TTL is 5 minutes.
x402 Support
✅ Supported.
- Facilitator:
https://gateway-api-testnet.circle.com/v1 - USDC address:
0x3600000000000000000000000000000000000000 - Network CAIP-2:
eip155:5042002
Block Explorer
All transactions, agent launches, and trade events are visible on explorer.testnet.arc.io.
- Agents: search the registry address
- Trades: filter events by curve address
- Graduations: search the graduation manager address
Getting Test USDC
Arc Testnet USDC is available via the Arc faucet (see arc.io for current faucet URL). You need enough for:
- Launch fee (~1 USDC)
- Optional dev buy
- Gas (minimal)
Recommended Graduation Targets
Since native = USDC ≈ $1, targets are in dollar terms:
| Target | Meaning |
|---|---|
| 2,500 USDC | ~$2.5k market cap at graduation |
| 5,000 USDC | ~$5k |
| 10,000 USDC | ~$10k |
| 20,000 USDC | ~$20k |
Custom targets allowed up to 1,000,000.