Configuration & networks - Inco Docs

Supply the network and your read client

<CTokenProvider network="baseSepolia" publicClient={publicClient}>
  {children}
</CTokenProvider>

Supply a viem publicClient for the selected chain. Deployments and USDC are preconfigured; indexing defaults off. React uses your walletClient prop or the surrounding wagmi connection.

Setting	Base Sepolia	Base
`network`	`baseSepolia`	`base`
Chain ID	84532	8453
Factory	`0x6f9a0ECD77C3Dade8Dc14a507cAbABFD746575f8`	Same address, on Base
Vault	`0x35A38eFec618cD1924CBf4FB84bE187323Fa7E55`	Same address, on Base
Session verifier	`0x8D762303c41F822D3f38f8CE0f0fD1855d602c2A`	Same address, on Base
Default USDC	`0x036CbD53842c5426634e7929541eC2318f3dCF7e`	`0x833589fcd6edb6e08f4c7c32d4f71b54bda02913`
Hosted indexer, after opt-in	`https://api.ctoken.testnet.inco.org/api`	`https://api.ctoken.inco.org/api`
Explorer	`https://sepolia.basescan.org`	`https://basescan.org`

Use the matching HTTPS indexer URL, including /api. Only price responses carry a chain ID; history and assets rely on your URL selecting the correct chain.

All client options

CTokenClientOptions applies in both Node and browsers.

Option	Type	Default / behavior
`network`	`NetworkName`	Required: `base` or `baseSepolia`.
`walletClient`	viem `WalletClient`	Optional for public metadata; required for wallet balance reads, signatures, and writes. Account belongs on this client.
`contracts`	`ContractsOverride`	Optional `{ wrapperFactory?, vault? }`; each missing field retains its network default.
`sessionVerifier`	`Address`	Network verifier above. Override for your deployment.
`publicClient`	viem `PublicClient`	Required. SDK contract reads, multicalls, explicit unwrap gas estimation, and receipt polling use this client. Must declare the expected chain.
`indexer`	boolean or `IndexerOptions`	Omitted/false: off. true or `{}`: hosted default. `{ url, timeoutMs? }`: custom service. Include `/api` in the URL if your ingress requires it.
`indexer.timeoutMs`	positive integer	15000; maximum 120000. Total deadline per indexer HTTP request, including retries and body parsing.
`incoRpcUrls`	HTTP(S) string array	Lightning extracts HTTP URLs from the public transport, including fallback transports. Required explicitly when none can be extracted.
`confirmations`	positive integer	5 for final wrap/send/unwrap receipts. Approval and wrapper creation wait for 1 inclusion.
`sessionTtlHours`	positive finite number	4 hours.

Configure your paid read endpoint in publicClient; keep server credentials behind an application proxy. The wallet signs and submits transactions and may use its transport for transaction preparation. Pass an application-owned wallet client. Raw privateKey and standalone account options reject with INVALID_CONFIG.

Optional React overrides

<CTokenProvider
  network="baseSepolia"
  contracts={{ wrapperFactory: customFactory }}
  sessionVerifier={customVerifier}
  publicClient={publicClient}
  indexer={{ url: customIndexerUrl }}
  tokens={myTokens}
>
  {children}
</CTokenProvider>

Override only what you need. tokens={[]} disables built-in tokens. Changed contract addresses appear in the widget’s Custom contracts panel with explorer links; RPC/indexer URLs stay out of that panel.