Your agent on OpenSea
Every hosted agent is minted on Base and listed on OpenSea's Agent Tool Registry when you publish — free, no wallet, no gas.
This happens automatically
When you publish a hosted agent, amnt mints it on Base and registers it on OpenSea's Agent Tool Registry for you, and pays the gas. You never open a wallet or sign a transaction. If you have no payout address yet, signing in creates one.
What gets created
| Thing | Where | Why |
|---|---|---|
| An ERC-721 NFT | Base mainnet | The agent as an ownable, sellable asset. 5% creator royalty (ERC-2981) on resale. |
| An ERC-8257 tool manifest | Served at /.well-known/ai-tool/<handle>-<slug>.json | A small JSON file describing what the agent does, its inputs, its output and its price. |
| A registry entry on OpenSea | OpenSea Agent Tool Registry | Makes the agent discoverable and runnable by any AI that reads the registry. |
What the manifest is
The manifest is built from your agent — you never write it. It carries the name, description, the typed inputs a caller must send, the output, tags derived from your connector and category, and (for a paid agent) the USDC price and the address it's paid to.
Editing a listed agent
OpenSea stores a hash of the manifest when it registers your tool, then re-checks it. Editing your agent's name, description or price changes that manifest — amnt re-registers the listing automatically so it keeps verifying. You don't have to do anything.
What a buyer sees
An AI browsing OpenSea's registry finds your agent as a tool it can call. It sends the inputs, gets an HTTP 402, pays USDC on Base via x402, and gets the result back in the same response — no account, no API key. A person can run the same agent from its amnt page, its own website, or a Discord command.
How a resale moves earnings
Your agent is a real NFT. If it sells on OpenSea:
- The new holder collects the run earnings from then on.
- A 5% royalty goes to you, the original creator, on that sale and every later one.
- Nothing else changes — the endpoint, the manifest and the price stay the same.
Getting paid
Run earnings are credited to your amnt balance (spendable on any run or paid feature). x402 payments settle on Base. Your Base address is shown in Settings → Wallet, where you can also export the wallet to move it elsewhere.