SocialAgent is an autonomous AI agent that researches real trending topics, generates on-brand social media content, and publishes it every week — powered by MetaMask Smart Accounts, x402 micropayment
This demo walks through SocialAgent — an autonomous social media management agent built for the MetaMask Smart Accounts × 1Shot API Hackathon.
What you'll see in this video:
Connecting MetaMask Flask and upgrading to a Smart Account via EIP-7702
Granting the agent weekly spending permissions via ERC-7715 Advanced Permissions
Agent A receiving ERC-7710 delegation and redelegating to Agent B (A2A coordination)
Connecting to 1Shot Permissionless Relayer on Base — real capabilities and fee quote fetch
Agent A fetching live trending topics via Tavily Search API
x402 micropayments per AI API call — paying in USDC via 1Shot relay
Three trend-aware social media posts generated for Instagram, Facebook and Twitter
Live terminal activity log showing every agent action in real time
Raw Tavily API response in console — proof of real live trend data
Tech stack: MetaMask Smart Accounts Kit · EIP-7702 · ERC-7715 · ERC-7710 · x402 Protocol · 1Shot Permissionless Relayer · Tavily Search API · Groq AI · React + Vite
Came in with solid React and backend experience but limited exposure to Smart Accounts, delegation standards, and agentic crypto systems. Used the hackathon to go deep on the MetaMask Smart Accounts Kit and build a production-grade autonomous agent from scratch.
What was built:
MetaMask Flask wallet connection with Wagmi
EIP-7702 smart account upgrade via MetaMask Smart Accounts Kit
ERC-7715 permission grant — user sets weekly USDC spending limit enforced on-chain
ERC-7710 A2A delegation — Agent A redelegates publishing rights to Agent B with least-privilege scoped permissions
1Shot Permissionless Relayer integration on Base — real capabilities and fee quote fetch via JSON-RPC
Tavily Search API for live trend research — Agent A analyzes real trending topics before generating content
Groq AI for content generation — taglines and 3 platform-specific social posts per run
x402 payment simulation per API call — architecture ready for real Venice AI x402 payments
Live terminal-style activity log showing every agent action in real time
Key challenges solved:
MetaMask Flask setup and Sepolia testnet configuration
ERC-7715 permission flow using erc7715ProviderActions from Smart Accounts Kit
1Shot API response structure nested under chain ID key
Building a natural A2A story with Tavily as the intelligence layer between agents
Preventing browser auto-scroll during live agent activity updates
Deployed live on Vercel with full README documentation.
Not raised. This is a hackathon project built independently