Frequently asked questions
Quick answers about CoinFello: what it is, how self-custody and delegations work, and what the agent can and can’t do. For integration and developer questions, see the developer docs.
Getting started
How do I start using CoinFello?
Go to app.coinfello.com and connect your wallet, or create a new one there. Then just ask: “swap 0.5 ETH to USDC,” “find me the best staking yields on Base,” or “explain my portfolio.”
What happens when I connect my wallet?
CoinFello reads your public portfolio data, never your private keys. Transactions only happen when you approve them in your own wallet, the same flow you already know from other dapps, or under a delegation you have explicitly granted.
Do I need ETH for network fees (gas)?
For onchain actions, generally yes. CoinFello optimizes with gasless and batched transactions via EIP-7702 where possible, but many actions still require network fees.
What if I'm new to DeFi?
CoinFello explains everything step by step, in plain language. Start with “explain my portfolio” or “walk me through yield farming.” The Learn guides also cover the most common DeFi concepts without jargon.
The basics
What is CoinFello?
CoinFello is a self-custodial, always-on AI agent for DeFi. You tell it what you want in plain language (“swap $50 of ETH to USDC,” “bridge USDC to Base,” “earn yield on my stablecoins”) and it researches, executes, and automates the onchain action for you, while your private keys stay in your wallet.
What can CoinFello do?
CoinFello can research assets and protocols, analyze your portfolio, send and swap tokens with best-price routing, bridge across chains, stake, and discover yield. It can automate recurring buys (DCA), with automated rebalancing between liquidity positions coming soon, and it sends real-time alerts on APY changes and liquidation risk. Everything runs from a chat interface.
Which blockchains and protocols does CoinFello support?
CoinFello runs on Ethereum, where its agent is registered onchain via the ERC-8004 standard, and supports Base, with bridging across chains. Support is expanding; ask the agent in the app for the current list.
Self-custody & delegations
Does CoinFello have access to my private keys or funds?
No. CoinFello is non-custodial: your private keys stay in your wallet and CoinFello never has access to them. Instead of taking custody, the agent acts only within guardrails you define (spending limits, allowed tokens, and expiry dates), and you can revoke its access at any time.
What are delegations?
Delegations are fine-grained, onchain permissions you grant to CoinFello, or to your own AI agent like Claude Code or OpenClaw, to act on your wallet's behalf within strict boundaries. They are built on open standards (EIP-7702, ERC-7710, ERC-7715), and they are permissions, not transfers: your funds never leave your wallet.
What controls can I set on a delegation?
Per-token spending limits, time-bound expiry (daily, weekly, or monthly allowances), and restrictions on which types of actions are permitted.
Can I revoke a delegation?
Yes, any delegation, at any time. Your funds remain in your wallet throughout; a delegation is a permission, not a transfer.
How is this different from giving an agent my private key?
An agent that holds your private key can do anything with your wallet, indefinitely, and you can't take the key back. CoinFello's agent never holds your keys: it operates through bounded, revocable permissions on your existing wallet, so the worst case is capped by the limits you set.
Safety & trust
Is CoinFello safe to use?
CoinFello is built to protect you, even from your own agent. It reads and explains every smart contract in plain language and surfaces the real risks before you approve, and it cannot act outside the guardrails you set: spending limits, allowed tokens, and expiry dates. You keep your keys and can revoke access anytime.
Can a website or third party trick CoinFello's agent into making a transaction?
No. CoinFello's agent acts only on prompts from you. It cannot receive instructions from outside websites or third parties, which protects against prompt-injection attacks. Every onchain action also stays within the revocable delegations you have granted, and you approve them in your own wallet.
Can CoinFello access my full wallet balance?
It can read your public onchain data to analyze your portfolio, but it can only move funds you have explicitly approved or covered with a delegation, never more.
Is CoinFello decentralized?
The parts that control your funds are decentralized. Delegations are onchain permissions built on open standards (EIP-7702, ERC-7710, ERC-7715), your keys stay in your wallet, and CoinFello never holds your assets. If CoinFello ever goes offline, your wallet and funds keep working exactly as before.
What happens if CoinFello goes offline?
Nothing happens to your funds or keys. CoinFello operates through delegations on your wallet rather than holding assets, so your wallet keeps working exactly as it did before.
For builders
Can my product's AI agent use CoinFello?
Yes. CoinFello is designed as an execution layer that other agents can delegate onchain actions to, through the Agent Skill, the Agent CLI, or agent-to-agent protocols. The developer docs cover each integration pattern.
Still curious? The What is CoinFello, Security & self-custody, and Is CoinFello safe? pages go deeper on each topic.