Networks and addresses
Where the pool is deployed, and the endpoints the SDK uses. A snapshot from Nov 6 2026.
These are demo deployments. Addresses and endpoints can change, so confirm against the repo before relying on them.
EIP-8141 devnet
The self-hosted devnet is the SDK's default target.
| Chain ID | 1337 |
| RPC | https://eip8141-rpc.arnabbhowmik.in/rpc |
| Explorer | https://eip8141.arnabbhowmik.in/ |
| Frame transactions | eth_sendFrameTransaction |
| Normal transactions | eth_sendRawTransaction, same URL |
Pool (DevnetCompetitivePool) | 0x9960927e3ecce8d5124db1bfad68121cdec20aa0 |
| dWETH | 0xf1877c0dc40bf2f1e46017c05908635e7cb68af2 |
DEVNET in neat3-sdk holds the chain ID, RPC and explorer URLs. The current pool and token addresses live in packages/private-quoting/web/public/deployment.json.
The devnet faucet can run dry
Funding comes from the devnet faucet (skandha_explorer_faucet, or the Faucet button in the explorer). It was empty on Nov 6. Don't use the devnet's shared genesis key.
Sepolia demo pool
Sepolia has the same DevnetCompetitivePool contract, seeded with mintable demo tokens. The calls the SDK encodes match this contract, but the SDK hasn't been exercised against it yet. The neat app talks to it directly.
| Chain ID | 11155111 |
| Pool | 0xE1Fde020143A73d0B0a9E8ba91E3ecD01dCb14EF |
| Demo WETH | 0xDb30012EBB4190C6aB2657283766531DA76a5475 |
| Demo USDC | 0xFD0b2B0B9d44308F396f6aeb6E3eD36893a67b42 |
| Oracle | 0xEfe745de339040E6182dcCb745f3A7ED7150C5DD |
The pool's competitor curve goes stale after one hour. After that the fee falls back to 0.30% and bestOut reads as 0n.
For private reads of Sepolia from a browser, use nox or nym with a public Sepolia RPC that sends CORS headers, such as https://ethereum-sepolia-rpc.publicnode.com.
Full address lists: deployments/sepolia.json in the repo.