# Build On-Chain

- [On-Chain QuickStart](https://docs.humanity.org/build-with-humanity/build-on-chain/on-chain-quickstart.md): Get your first Humanity on-chain integration. Clone the scaffold, deploy a verification contract to Humanity testnet, and confirm a wallet is linked to a verified human.
- [On-Chain Quick Start Guide](https://docs.humanity.org/build-with-humanity/build-on-chain/on-chain-quick-start-guide.md)
- [Network Information - Testnet](https://docs.humanity.org/build-with-humanity/build-on-chain/network-information-testnet.md): Humanity testnet connection details: RPC endpoints, chain ID, block explorer, faucet links, and network configuration for development.
- [Network Information - Mainnet](https://docs.humanity.org/build-with-humanity/build-on-chain/network-information-mainnet.md): Humanity mainnet connection details: RPC endpoints, chain ID, block explorer, bridge information, and production network configuration.
- [Credentials Verification Service](https://docs.humanity.org/build-with-humanity/build-on-chain/credentials-verification-service.md): On-chain oracle interface for querying user credentials. Smart contracts can verify claims (presets) within categories (scopes) without exposing personal data.
- [Canonical Contracts](https://docs.humanity.org/build-with-humanity/build-on-chain/canonical-contracts.md): Official open-source smart contract interfaces and implementations for on-chain development with Humanity verification.
- [IFeeEscrow](https://docs.humanity.org/build-with-humanity/build-on-chain/canonical-contracts/ifeeescrow.md): Smart contract interface for FeeEscrow: handles verification fees, escrow deposits, and payment distribution for on-chain verification requests.
- [IVerificationOracle](https://docs.humanity.org/build-with-humanity/build-on-chain/canonical-contracts/iverificationoracle.md): Verification Oracle interface: query user credentials on-chain, verify claims, and integrate proof-of-humanity into smart contract logic.


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