I'm Kristjan, and I'm building goblin: your own personal AI agent. It feels like Slack, plugs into any MCP server, and pays for things only within limits you set.
Ten years as a backend engineer, mostly in identity: OAuth 2 integrations at a multinational, then identity verification in crypto. Agents now need the same thing: an identity, granular permissions, observability, and money with limits.
For this hackathon I built two things that need each other:
• goblin, the personal agent: goblin.surf
• Goblin Wallet, a standalone MCP wallet any MCP client can use: wallet.goblin.surf
How it works
• One durable agent per person on Cloudflare, built on Pi Durable, not tied to one model
• MCP is first-class: tools, events, and MCP Apps rendered right in the chat
• Wallet: Privy, EIP-7702 smart accounts and delegations. You sign a limit once and the chain enforces it
• Pays per call over x402 and MPP, with gas paid in USDC (ERC-4337 + paymaster)
• goblin Pro: $1 a day you use it, or $15 a month, from the same kind of signed permission
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