CoinFello is debuting an “onchain AI agent” at ETHDenver on February 18, using a preview experience called “BuffiBot” that appears on the event schedule as host-style programming.
The conference-facing version is framed as a practical assistant: attendees can query sessions, speakers, workshops, expo vendors, and side events through the ETHDenver app, with both text and voice support, according to conference materials and a conference-focused industry write-up.
Behind the event helper, CoinFello is pitching something larger: an agent interface that doesn’t just explain DeFi steps, but can carry out smart-contract interactions on a user’s behalf.
In its earlier product positioning, the team has described a flow where users delegate limited authority from an existing wallet so the agent can perform actions, while the user remains in custody of funds.
The company also ties its approach to MetaMask Smart Accounts tooling. Smart accounts are increasingly promoted as a way to add guardrails like granular permissions and better UX on top of standard wallets.
The timing fits a broader ETHDenver theme: “agents” have moved from a buzzword to an explicit hackathon and demo-day track, with “AI agent” programming visible across the event schedule.
That makes the BuffiBot pilot more than a random app demo, it’s part of a wider attempt to make agentic software feel normal inside crypto, especially if those agents can initiate transactions rather than stopping at recommendations.
Still, “an agent that can execute onchain” is where the story becomes less about convenience and more about risk. Any system that can trigger smart-contract calls needs a clear answer to basic questions: what permissions does it request, what limits exist (spend caps, allowlists, revocation), how does it surface transaction previews, and what happens if a user is fed malicious instructions or links.
CoinFello’s public materials emphasize delegation and “fine-grained” permissions in connection with smart accounts, but the practical strength of those controls and how they’re enforced in real user flows will matter more than the demo script.
“The previous model for crypto UX is saturated,” said jacobc.eth. “Agentic AI enables onchain execution and DeFi interactions to become accessible to billions of people through familiar and safer user experiences.”
“We’re pleased to collaborate with the CoinFello team as they bring agent-driven experiences to users through the MetaMask Smart Accounts Kit,” said Ryan McPeck, Product Lead at Consensys for the MetaMask Smart Accounts Kit. “We see a future where AI agents can safely act on behalf of users using granular, transitive permissions that allow individuals to define how activity is executed on-chain.”
CoinFello is also aligning itself with ERC-8004, a proposed Ethereum standard designed to help agents be discovered and interacted with across organizational boundaries “without pre-existing trust,” using onchain registries for identity and trust signals.
In plain terms, the bet is that agent ecosystems will need something like shared naming, metadata, and reputation rails otherwise users and other agents have no clean way to know what they’re invoking.
Also Read: ETHDenver 2026: Vitalik Buterin Discusses AI and Perfect Markets
