Afterbell

Connecting

AI agents on Hyperliquid

Your AI trades after the bell.

Claude, ChatGPT, Grok or your own bot, on your account and inside your limits. It trades; it never withdraws.

…
markets it can trade
7
trading tools
0
ways to withdraw
Connect your AIHow it stays yours
An example conversationLive prices

Works with

Five steps, once

Each step ticks itself as it happens.

  1. Connect a wallet

  2. Deposit USDC

  3. Enable trading

    Lets Afterbell place your orders and approves its fee, once. No funds move.

  4. Turn on the key Afterbell holds

    The key behind Run while I'm away: it places and cancels orders and can never withdraw. One signature.

  5. Connect your AI

Connect your AI

Each agent gets its own key. It trades this wallet only, inside your limits, and stops the moment you revoke it. The key is shown once; Afterbell keeps only a fingerprint of it.

  1. In Claude on the web or the desktop app, open Settings, then Connectors, and choose Add custom connector.
  2. Name it Afterbell and paste your personal address below as its URL. The address carries your key: keep it private.
  3. In a new chat, ask: What is in my Afterbell account?
Your personal addressYour key goes where it says ab_agent_…
/v1/mcp?key=ab_agent_…

Every order an agent places carries Afterbell's builder fee, as yours do: 0.001% now, on top of Hyperliquid's own.

What an agent can do

Seven trading tools, over MCP for an AI or plain HTTP for a bot.

  • Accountafterbell_accountYour USDC, positions, open orders, your limits, and whether it can trade now.
  • Quoteafterbell_quoteAn order as it would go out, with the fee and whether your limits allow it. Nothing is placed.
  • Orderafterbell_orderMarket or limit, long or short, with a take-profit and a stop if it likes.
  • Closeafterbell_closeCloses a position at market, all of it or a share.
  • Protectafterbell_protectA take-profit, a stop or both on a position already open.
  • Cancelafterbell_cancelCancels an open order.
  • Activityafterbell_activityWhat it did, what was refused and why, and what waits for you.
  • Fourteen data toolsMarkets, sessions, funding, earnings, macro, liquidations, whales, traders, vaults and more.

For your own bot

Every call carries the key as Authorization: Bearer. An order takes symbol, side (long or short), usd or size, and if you like type, price, leverage, reduceOnly, tp and sl.

120 calls and 30 order actions a minute.

Read the guide
/v1
  • GET/agent/accountThe account, the limits, whether it can trade
  • POST/agent/quote{ symbol, side, usd or size, type, price, leverage, reduceOnly, tp, sl }
  • POST/agent/orderThe quote's body; places it
  • POST/agent/close{ symbol, fraction }
  • POST/agent/protect{ symbol, tp, sl }
  • POST/agent/cancel{ symbol, oid }
  • GET/agent/activityIts own log and its waiting orders

How it stays yours

  • It trades, it never withdraws

    Orders go through a key Afterbell holds for your wallet: a Hyperliquid agent that can place and cancel orders and nothing else. Hyperliquid itself refuses it a withdrawal or a transfer.

  • Your limits, on Afterbell's server

    Every order is checked against them before it goes out, and an agent cannot change them. Closing or reducing a position always passes, unless you pause.

  • Stop it at once

    Pause every agent above, revoke one key, or turn off Run while I'm away in the wallet menu, which stops them all. On Hyperliquid you can also remove “Afterbell away” from your approved agents.

  • No private key, ever

    An agent key starts with ab_agent_. Afterbell never asks for your wallet's private key or seed phrase, and no agent ever needs one.

  • Start small

    An AI can misread a market or a number. Keep the limits small, or ask first, until you trust how it trades.