FlowBack

FlowBack solves the $21B creator marketing trust problem. Brands deposit USDC into a smart contract with payout rules (e.g., $10 per 1,000 views). Creators connect YouTube/TikTok via OAuth, verify identity with World ID, and submit video URLs.

Chainlink CRE workflows running on DON nodes fetch real engagement metrics via Confidential HTTP, run dual AI content verification (backend AI + decentralized LLM on DON nodes with 60/40 weighting), read campaign rules from the contract, and auto-release USDC to creators.

No middlemen, no invoices, no disputes. Built by a content creator with 300K followers and 47M views who's experienced late payments and non-payments firsthand.

-Monorepo: Next.js 16 frontend (Vercel), Express/Prisma API (Railway), Solidity contracts (Foundry, Base Sepolia), CRE workflow (TypeScript).

The CRE workflow uses 6 capabilities: Log Trigger, HTTP, Confidential HTTP (privacy: API keys in VaultDON/TEE), EVM Read/Write, LLM (AI on DON nodes), and Report & Sign.

World ID provides sybil resistance via zero-knowledge proofs. World Mini App support via MiniKit SDK.

thirdweb + wagmi for wallet connectivity.

Tenderly Virtual TestNet for debugging.

20 passing Forge tests cover campaign creation, payouts, gasless flows, and edge cases.