# Developer Guides & Tutorials - [Generating Mock Credentials](https://docs.humanity.org/developer-guides-and-tutorials/generating-mock-credentials.md): Create test credentials for development and testing. Mock data generation for SDK flows and on-chain verification without real palm scans. - [SDK / API Guides](https://docs.humanity.org/developer-guides-and-tutorials/sdk-api-guides.md): Practical guides and code examples for integrating Humanity SDK into web applications with common use cases. - [SDK Implementation Recipes & Patterns](https://docs.humanity.org/developer-guides-and-tutorials/sdk-api-guides/sdk-implementation-recipes-and-patterns.md): Prerequisites, common integration patterns and best practices for SDK usage. - [Frontend OAuth with the Connect SDK](https://docs.humanity.org/developer-guides-and-tutorials/sdk-api-guides/frontend-oauth-with-the-connect-sdk.md): Build a React app that authenticates users with Humanity's OAuth flow and gates content based on biometric verification — using the Connect SDK directly without pre-built components. - [Personalized Newsletter App - Reference Implementation](https://docs.humanity.org/developer-guides-and-tutorials/sdk-api-guides/personalized-newsletter-app-reference-implementation.md): Full-stack reference application demonstrating Humanity SDK integration with user authentication, email verification, and personalized content delivery. - [Personalized Newsletter App Overview](https://docs.humanity.org/developer-guides-and-tutorials/sdk-api-guides/personalized-newsletter-app-reference-implementation/personalized-newsletter-app-overview.md): Complete architecture overview, repository links, high-level flow diagram, and prerequisites for the newsletter reference app. - [Installing the App](https://docs.humanity.org/developer-guides-and-tutorials/sdk-api-guides/personalized-newsletter-app-reference-implementation/installing-the-app.md): Step-by-step installation guide: clone repository, configure environment variables, install dependencies, set up OAuth credentials, and run locally. - [Understanding the SDK Usage](https://docs.humanity.org/developer-guides-and-tutorials/sdk-api-guides/personalized-newsletter-app-reference-implementation/understanding-the-sdk-usage.md): Code walkthrough explaining SDK initialization, authentication flow, callback handling, user data retrieval, and error handling in the newsletter app. - [On-Chain Guides](https://docs.humanity.org/developer-guides-and-tutorials/on-chain-guides.md): Practical guides for building decentralized applications with Humanity Protocol's on-chain verification infrastructure. - [Connect Wallets](https://docs.humanity.org/developer-guides-and-tutorials/on-chain-guides/connect-wallets.md): Connect Web3 wallets to Humanity network for testnet and mainnet interactions. - [Add Humanity Testnet to Metamask](https://docs.humanity.org/developer-guides-and-tutorials/on-chain-guides/connect-wallets/add-humanity-testnet-to-metamask.md): Configure MetaMask for Humanity testnet: network name, RPC URL, chain ID, currency symbol, and block explorer URL. - [Add Humanity Mainnet to Metamask](https://docs.humanity.org/developer-guides-and-tutorials/on-chain-guides/connect-wallets/add-humanity-mainnet-to-metamask.md): Configure MetaMask for Humanity mainnet: network name, RPC URL, chain ID, currency symbol, and block explorer URL. - [Fund Your Wallet](https://docs.humanity.org/developer-guides-and-tutorials/on-chain-guides/fund-your-wallet.md): Get testnet tokens and mainnet funds for deploying contracts and paying gas fees on Humanity network. - [Fund Your Testnet Wallet](https://docs.humanity.org/developer-guides-and-tutorials/on-chain-guides/fund-your-wallet/fund-your-testnet-wallet.md): Request free testnet tokens from the faucet for development and testing. Includes faucet URL and usage instructions. - [Fund Your Mainnet Wallet](https://docs.humanity.org/developer-guides-and-tutorials/on-chain-guides/fund-your-wallet/fund-your-mainnet-wallet.md): Acquire mainnet tokens via bridges, exchanges, or direct transfer for production smart contract deployment and gas fees. - [Deploy an ERC-20 Token on Humanity Testnet using Hardhat](https://docs.humanity.org/developer-guides-and-tutorials/on-chain-guides/deploy-an-erc-20-token-on-humanity-testnet-using-hardhat.md): Complete tutorial: write, compile, test, deploy, and verify an ERC-20 token smart contract on Humanity testnet using Hardhat framework. - [Verified Airdrop dApp - Reference Implementation](https://docs.humanity.org/developer-guides-and-tutorials/on-chain-guides/verified-airdrop-dapp-reference-implementation.md): Reference dApp demonstrating on-chain credential verification for token airdrops. Only verified humans can claim tokens using proof-of-humanity. - [Verified Airdrop dApp Overview](https://docs.humanity.org/developer-guides-and-tutorials/on-chain-guides/verified-airdrop-dapp-reference-implementation/verified-airdrop-dapp-overview.md): Architecture overview, smart contract design, frontend integration, end-to-end verification flow, repository links, and setup prerequisites. - [Smart Contracts Set Up](https://docs.humanity.org/developer-guides-and-tutorials/on-chain-guides/verified-airdrop-dapp-reference-implementation/smart-contracts-set-up.md): Deploy and configure verification oracle, airdrop contract, and credential checking logic for the verified airdrop dApp on testnet. - [Front End Integration](https://docs.humanity.org/developer-guides-and-tutorials/on-chain-guides/verified-airdrop-dapp-reference-implementation/front-end-integration.md): Build React frontend that connects wallets, checks verification status, calls smart contract functions, and displays airdrop eligibility. --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. 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