DeFi Builder | Crypto Author | Base, Plasma, BOB & Bittensor Ecosystem

Building the future of decentralized finance on Base 🔵, Plasma ⚡, BOB 🟠, and Bittensor 🟢

An autonomous payment gateway on Base mainnet. AI agents pay USDC per request to access AI models, batch payments, and DeFi data. No API keys, no accounts — just HTTP + crypto.

• 🤖 200+ AI models via OpenAI-compatible API ($0.005/req)
• 💸 Batch payments — any ERC-20 token + native ETH via Spraay ($0.01/req)
• 📊 Live swap quotes, token prices, balances, ENS resolution
• 🏪 Bazaar discoverable — agents find endpoints autonomously
• 🔗 Coinbase CDP facilitator on Base mainnet
• ⚡ Built on x402 protocol
• 🤖 MCP Server: spraay-x402-mcp — plug into Claude Desktop or Cursor
• 📡 9 paid + 5 free endpoints | Discovery →

🔗 Live → | GitHub →

github.com/plagtech/spraay-x402-mcp

MCP server for the Spraay x402 Gateway — connects Claude Desktop, Cursor, or any MCP-compatible AI client to onchain data, AI models, and batch payments on Base. 9 tools, pay-per-call in USDC.

Listed on: Smithery · MCP.so · x402scan · LobeHub MCP

Multi-chain batch payment protocol. Send any ERC-20 token or native ETH to 200+ recipients in a single transaction.

• 🔵 Base — Any ERC-20 token + native ETH
• 🟠 BOB — Batch payments on Build on Bitcoin
• ⚡ Plasma — Batch XPL, USDT0 & ERC-20s with sub-second finality
• 🟣 Unichain — Batch payments on Unichain
• 🟢 Bittensor — Native TAO batch transfers via utility.batch_all for subnet operators

Features across chains:

• ⚡ ~80% gas savings vs individual transfers
• 🪙 Supports any ERC-20 token + native ETH
• 📊 Equal or variable amount distributions
• 📁 CSV import for large batches
• 🔗 Social handle resolution (Farcaster, ENS)
• 💎 0.3% protocol fee

Contracts:

🔗 spraay.app →

A standalone dapp on Base with batch payments and fiat onramp. Built with OnchainKit + ethers.js.

• 💸 Batch payments on Base (any ERC-20 + ETH)
• 💳 Coinbase Onramp — buy crypto directly in-app with fiat
• 🔗 Built with Next.js, OnchainKit, ethers.js v5

🔗 Try it → | GitHub →

A next-gen DEX on Base featuring instant swaps and scheduled trading with gas-free transactions.

• ⚡ Instant token swaps with best price execution
• ⏰ Recurring scheduled swaps (DCA made easy)
• ⛽ Gas-free trading via Coinbase Paymaster
• 📦 EIP-5792 transaction batching
• 🔄 Routes through Uniswap V3 & Aerodrome

🔗 Try it now → | GitHub →

• A2A Agent Card: agent.spraay.app — Google A2A protocol
• XMTP Agent: Agent Mango on production network
• ERC-8004: Registered agent identity on Ethereum mainnet
• x402 Gateway: 9 paid endpoints, Bazaar discoverable
• MCP Server: Listed on 4+ directories
• Coinbase AgentKit PR #944 — AI agents batch-send via Spraay
• Bankr OpenClaw — Submitted Spraay skill for Bankr AI agent (69K+ users)

"28 Tips for Creating Wealth in Crypto"

Sharing insights and strategies from years of experience navigating the crypto markets since 2021.

Blockchain:    Solidity, Base, Ethereum, Plasma, Unichain, BOB, Bittensor (Substrate)
Frontend:      React, Next.js, TypeScript, TailwindCSS
Web3:          Wagmi, Viem, OnchainKit, ethers.js, RainbowKit
AI/Agents:     x402 Protocol, Coinbase AgentKit, ERC-8004, A2A, XMTP, MCP
DeFi:          Uniswap V3, Aerodrome
Backend:       Python, bittensor SDK, Express, OpenRouter
Infra:         Railway, Vercel, Fly.io, Coinbase CDP, Coinbase Paymaster
Tools:         EIP-5792, Coinbase Onramp, OpenZeppelin

• 🪙 Spraay — batch payments for any ERC-20 + ETH, live on Base
• 🌐 Growing the Spraay x402 Gateway — AI agent infrastructure
• 🔨 Expanding Spraay multi-chain (Base, BOB, Plasma, Unichain, Bittensor)
• 🤖 AI agent integrations (AgentKit, Bankr, x402 Bazaar, A2A, XMTP)
• 📈 Growing Base, Plasma, BOB & Bittensor ecosystem presence
• 🤝 Building in the Base Build cohort