T2000

@mission69b

3 months ago

A bank account for AI agents. Five accounts. Earn, borrow, invest, exchange — autonomously.

Overview

t2000

A bank account for AI agents.

Checking · Savings · Credit · Investment · Exchange · x402 Pay · MCP
Built on Sui · Open source · Non-custodial · BYOK LLM

Website · Docs · CLI · SDK · x402 · MCP · MCP Package

Your agent can hold money, earn yield, borrow against savings, exchange currencies, and pay for APIs — all in one CLI command. No human in the loop.

// Load existing wallet
const agent = await T2000.create({ pin: process.env.T2000_PIN });
// Or create a new one
const { agent } = await T2000.init({ pin: 'my-secret' });

await agent.send({ to: '0x...', amount: 50 });
await agent.save({ amount: 100 });    // earn ~2–8% APY (auto-selects best rate)
await agent.borrow({ amount: 20 });   // borrow against savings
await agent.repay({ amount: 20 });    // repay debt
await agent.withdraw({ amount: 50 }); // always returns USDC

await agent.investBuy({ asset: 'SUI', usdAmount: 100 }); // invest $100 in SUI (or BTC, ETH, GOLD)
await agent.investSell({ asset: 'SUI', usdAmount: 'all' }); // sell all SUI
await agent.investEarn({ asset: 'SUI' });                    // deposit to lending for yield
await agent.investUnearn({ asset: 'SUI' });                  // withdraw from lending
await agent.investRebalance();                               // move earning to better-rate protocol
await agent.investStrategy({ strategy: 'bluechip', usdAmount: 200 }); // atomic PTB
await agent.setupAutoInvest({ amount: 50, frequency: 'weekly', strategy: 'bluechip' });

See it work

❯ t2000 init

  Step 1 of 3 — Create wallet
  Creating agent wallet...
  ✓ Keypair generated
  ✓ Network  Sui mainnet
  ✓ Gas sponsorship  enabled
  ✓ Checking  ✓ Savings  ✓ Credit  ✓ Exchange  ✓ Investment
  🎉 Bank account created
  Address: 0x8b3e...d412

  Step 2 of 3 — Connect AI platforms
  ✓ Claude Desktop  configured
  ✓ Cursor  configured

  Step 3 of 3 — Set safeguards
  ✓ Safeguards configured

  ✓ You're all set
  Restart Claude Desktop / Cursor and ask: "What's my t2000 balance?"

❯ t2000 balance
  Available:  $85.00   (checking — spendable)
  Savings:    $80.00   (earning 4.86% APY)
  Investment: $5.02    (+0.4%)
  ──────────────────────────────────────
  Total:      $170.02

Why t2000?

AI agents need money. They need to pay for APIs, receive payments, hold funds, and eventually — fund themselves. But today, giving an agent a wallet means teaching it about gas tokens, transaction signing, RPC endpoints, and DeFi protocols.

t2000 makes all of that invisible.

Problem	t2000 Solution
Agents can't hold money	Non-custodial bank account in one line of code
Gas tokens are confusing	Auto-managed — agent never sees SUI
Idle funds lose value	Automatic yield via NAVI + Suilend (~2–8% APY)
DeFi is complex	`save()`, `borrow()`, `repay()`, `withdraw()` — four methods
No standard payment protocol	x402 client — first implementation on Sui
No standard wallet interface	SDK + CLI + HTTP API for any language

Getting Started

npm install -g @t2000/cli           # Install
t2000 init                          # Wallet + MCP + safeguards — one command

Use the CLI directly or connect your AI via MCP:

t2000 balance                      # Check balance
t2000 send 10 USDC to 0x...       # Send USDC
t2000 save all                     # Earn yield on idle funds
t2000 invest buy 100 SUI          # Invest $100 in SUI
t2000 exchange 5 USDC SUI         # Currency exchange via Cetus DEX
t2000 pay https://api.example.com  # Pay for x402 APIs

How it works

t2000 wraps six DeFi primitives into a single interface that any AI agent can use:

Feature	What it does	How
Checking	Send and receive USDC	Direct Sui transfers
Savings	Earn ~2–8% APY on idle funds	NAVI + Suilend (auto-selected)
Credit	Borrow USDC against savings	NAVI + Suilend collateralized loans
Exchange	Swap between any supported tokens	Cetus DEX CLMM pools
Investment	Buy/sell SUI, BTC, ETH, GOLD with cost-basis P&L	Cetus DEX (spot swaps)
Investment Yield	Earn yield on invested assets via lending	NAVI + Suilend (auto-selected best rate, auto-rebalance)
Strategies	Themed allocations (bluechip, all-weather, safe-haven, layer1, sui-heavy) — single atomic PTB	Agent orchestration + Cetus
Auto-Invest	Dollar-cost averaging (daily/weekly/monthly DCA)	Agent scheduling
Yield Optimizer	Auto-rebalance across 4 stablecoins	`t2000 rebalance` — moves savings to highest APY in a single atomic PTB
x402 Pay	Pay for API resources with USDC	Sui Payment Kit
Safeguards	Per-tx and daily limits, agent lock	`t2000 config show/set maxPerTx/maxDailySend`, `t2000 lock`, `t2000 unlock`
MCP	AI agent banking — natural language	Claude Desktop, Cursor, Windsurf via @t2000/mcp

Gas is invisible. t2000 handles it automatically: self-funded SUI → auto-topup ($1 USDC → SUI when low) → sponsored fallback for bootstrapping.

All multi-step operations (save with auto-convert, withdraw with auto-swap, rebalance) execute as single atomic Programmable Transaction Blocks (PTBs). If any step fails, the entire transaction reverts — no funds left in intermediate states.

Fees

Operation	Fee	Notes
Save	0.1%	Protocol fee on deposit
Borrow	0.05%	Protocol fee on loan
Exchange	Free	Cetus pool fees only; used internally by rebalance/auto-convert
Withdraw	Free
Repay	Free
Send	Free
Pay (x402)	Free	Agent pays the API price, no t2000 surcharge

The self-funding loop

At ~$2,000 supplied, yield from savings offsets typical AI compute costs — the agent becomes self-funding.

Supplied	APY	Monthly Yield	Covers
$100	~8%	$0.67	—
$500	~8%	$3.33	Light agent ($3/mo)
$2,000	~8%	$13.33	Medium agent ($15/mo)
$10,000	~8%	$66.67	Heavy agent

Packages

Package	Description	Install
`@t2000/sdk`	TypeScript SDK — core library	`npm install @t2000/sdk`
`@t2000/cli`	Terminal bank account + HTTP API	`npm install -g @t2000/cli`
`@t2000/mcp`	MCP server for Claude Desktop, Cursor, Windsurf	Included with CLI
`@t2000/x402`	x402 payment client (first on Sui)	`npm install @t2000/x402`

SDK

import { T2000 } from '@t2000/sdk';

const agent = await T2000.create({ pin: process.env.T2000_PIN });
// or: const agent = T2000.fromPrivateKey('suiprivkey1q...');

Category	Method	Description
Wallet	`agent.balance()`	Available + savings + gas breakdown
	`agent.send({ to, amount })`	Send USDC
	`agent.history()`	Transaction log
Savings	`agent.save({ amount })`	Deposit USDC to savings, earn APY
	`agent.withdraw({ amount })`	Withdraw from savings (always USDC)
	`agent.earnings()`	Yield earned, daily rate
Credit	`agent.borrow({ amount })`	Borrow USDC against collateral
	`agent.repay({ amount })`	Repay debt
	`agent.healthFactor()`	Liquidation safety
Info	`agent.rates()`	Current APYs
	`agent.positions()`	Open DeFi positions
Safeguards	`agent.enforcer.getConfig()`	Safeguard settings
	`agent.enforcer.set({ maxPerTx?, maxDailySend? })`	Set limits
	`agent.enforcer.lock()`	Lock agent (freeze all operations)
	`agent.enforcer.unlock(pin)`	Unlock agent
	`agent.enforcer.check(amount)`	Check if amount allowed
	`agent.enforcer.recordUsage(amount)`	Record send for daily limit
	`agent.enforcer.isConfigured()`	Whether safeguards are set up
Contacts	`agent.contacts.list()`	List saved contacts
	`agent.contacts.add(name, address)`	Add a contact
	`agent.contacts.remove(name)`	Remove a contact
	`agent.contacts.get(name)`	Get contact address
	`agent.contacts.resolve(nameOrAddress)`	Resolve name → address
Investment	`agent.investBuy({ asset, usdAmount })`	Buy crypto asset with USD
	`agent.investSell({ asset, usdAmount })`	Sell crypto asset back to USDC
	`agent.investEarn({ asset })`	Deposit invested asset to lending for yield
	`agent.investUnearn({ asset })`	Withdraw from lending, keep in portfolio
	`agent.investRebalance({ dryRun? })`	Move earning positions to better-rate protocols
	`agent.getPortfolio()`	Investment positions + P&L
Strategies	`agent.investStrategy({ strategy, usdAmount })`	Buy into a strategy (atomic PTB)
	`agent.rebalanceStrategy({ strategy })`	Rebalance to target weights
	`agent.getStrategies()`	List available strategies
Auto-Invest	`agent.setupAutoInvest({ amount, frequency, strategy })`	Schedule DCA
	`agent.runAutoInvest()`	Execute pending purchases
Sentinel	`agent.sentinelList()`	Browse active sentinels
	`agent.sentinelAttack(id, prompt)`	Full attack flow

Full API reference → @t2000/sdk README

CLI

# Wallet
t2000 init                         Guided setup (wallet, AI, safeguards)
t2000 balance                      Check balance
t2000 send 10 USDC to 0x...       Send USDC
t2000 history                      Transaction history

# Savings & DeFi
t2000 save 50                      Earn yield (best rate)
t2000 withdraw 25                  Withdraw savings (always USDC)
t2000 borrow 10                    Borrow USDC against collateral
t2000 repay 10                     Repay debt
t2000 rebalance                    Optimize yield across stablecoins
t2000 exchange 5 USDC SUI         Exchange tokens via Cetus DEX
t2000 invest buy 100 SUI             Invest $100 in SUI (or BTC, ETH, GOLD)
t2000 invest sell all SUI            Sell entire SUI position
t2000 invest earn SUI                Deposit SUI to lending for yield
t2000 invest unearn SUI              Withdraw from lending, keep invested
t2000 invest rebalance               Move earning to better-rate protocol
t2000 invest strategy buy layer1 200 Buy into a strategy (1 atomic tx)
t2000 invest strategy list           List available strategies
t2000 invest auto setup 50 weekly bluechip   Set up DCA
t2000 invest auto run                Execute pending DCA
t2000 portfolio                      Investment portfolio + P&L
t2000 earnings                     Yield earned
t2000 health                       Health factor
t2000 rates                        Current APYs

# x402 Payments
t2000 pay https://api.example.com  Pay for API resource

# Earn (directory)
t2000 earn                         Show all earning opportunities

# Sentinel (earn bounties)
t2000 sentinel list                Browse active sentinels
t2000 sentinel attack <id> "..."   Attack a sentinel (costs SUI)
t2000 sentinel info <id>           Sentinel details

# Contacts
t2000 contacts                     List saved contacts
t2000 contacts add <name> <addr>   Save a named contact
t2000 contacts remove <name>       Remove a contact

# Safeguards
t2000 config show                  View safeguard settings
t2000 config set maxPerTx 500      Set per-transaction limit
t2000 config set maxDailySend 1000 Set daily send limit
t2000 lock                         Lock agent (freeze all operations)
t2000 unlock                       Unlock agent (requires PIN)

# HTTP API (for non-TypeScript agents)
t2000 serve --port 3001            Start HTTP API server

Every command supports --json for structured output and --yes to skip confirmations.

Full command reference → @t2000/cli README

HTTP API

For agents written in Python, Go, Rust, or any language:

t2000 serve --port 3001
# ✓ Auth token: t2k_a1b2c3d4e5f6...

curl -H "Authorization: Bearer t2k_..." http://localhost:3001/v1/balance
curl -X POST -H "Authorization: Bearer t2k_..." \
  -d '{"to":"0x...","amount":10}' \
  http://localhost:3001/v1/send

Method	Endpoint	Description
GET	`/v1/balance`	Balance breakdown
GET	`/v1/earnings`	Yield summary
GET	`/v1/rates`	Current APYs
GET	`/v1/health-factor`	Health factor
POST	`/v1/send`	Send USDC
POST	`/v1/save`	Deposit to savings
POST	`/v1/withdraw`	Withdraw from savings
POST	`/v1/borrow`	Borrow USDC
POST	`/v1/repay`	Repay debt
GET	`/v1/events`	SSE stream (yield, balance changes)

x402 Payments

t2000 is the first x402 protocol client on Sui. When a server returns 402 Payment Required, t2000 automatically pays with USDC and retries — no API keys, no subscriptions, no human approval.

import { x402Client } from '@t2000/x402';
import type { X402Wallet } from '@t2000/x402';

const wallet: X402Wallet = {
  client: agent.suiClient,
  keypair: agent.signer,
  address: () => agent.address(),
  signAndExecute: async (tx) => {
    const r = await agent.suiClient.signAndExecuteTransaction({
      signer: agent.signer, transaction: tx,
    });
    return { digest: r.digest };
  },
};
const client = new x402Client(wallet);
const response = await client.fetch('https://api.example.com/data');

Built on the Sui Payment Kit with Move-level replay protection.

Full reference → @t2000/x402 README

MCP Server

Connect Claude Desktop, Cursor, Windsurf, or any MCP client to your t2000 agent:

t2000 mcp install

Architecture: User → MCP Client (Claude/Cursor/Windsurf) → @t2000/mcp → @t2000/sdk → Sui

Auto-configures Claude Desktop + Cursor. 23 tools · 15 prompts · stdio transport · safeguard enforced. See the MCP setup guide for full instructions.

Agent Skills

Install one package and your AI agent gains financial capabilities:

npx skills add mission69b/t2000-skills

Works with Claude Code, OpenAI Codex, GitHub Copilot, Cursor, VS Code, Amp, Goose, and 20+ more.

Skill	Trigger
`t2000-check-balance`	"check balance", "how much USDC do I have"
`t2000-send`	"send 10 USDC to..."
`t2000-save`	"deposit to savings", "earn yield"
`t2000-withdraw`	"withdraw from savings"
`t2000-borrow`	"borrow 40 USDC"
`t2000-repay`	"repay my loan"
`t2000-exchange`	"swap USDC to SUI", "exchange tokens"
`t2000-pay`	"call that paid API"
`t2000-sentinel`	"attack a sentinel", "earn bounties"
`t2000-rebalance`	"optimize yield", "rebalance savings"
`t2000-contacts`	"list contacts", "add contact"
`t2000-invest`	"invest in SUI", "buy BTC", "portfolio"

Full reference → Agent Skills README

Comparison

Feature	Coinbase Agent Kit	t2000
Chain	Base only	Sui
Send / receive	✓	✓
Earn yield on savings	—	✓ NAVI + Suilend (~2–8% APY)
Borrow / credit line	—	✓ Borrow against savings + investment collateral
Exchange / Token swap	✓ Base tokens	✓ Cetus DEX (any pair + rebalance)
Investment (spot)	—	✓ SUI, BTC, ETH, GOLD with cost-basis P&L
Yield on investments	—	✓ Earn lending APY on holdings while keeping price exposure
Borrow against investments	—	✓ Deposited investments count as collateral for credit
Margin trading	—	🔜 Coming soon — leveraged positions on SUI, BTC, ETH, GOLD
Strategies + DCA	—	✓ Atomic PTB multi-asset buys, dollar-cost averaging
x402 client	✓ Base / Solana	✓ Sui (first on Sui)
Agent Skills	✓	✓
Gas abstraction	✓ Gasless (Base)	✓ Auto-topup (Sui)
DeFi composability	—	✓ Atomic PTB multi-step
Health factor protection	—	✓ On-chain enforcement
Yield Optimizer	—	✓ Auto-rebalance across 4 stablecoins
Agent Safeguards	—	✓ Per-tx + daily limits + lock
MCP Server	—	✓ 23 tools + 15 AI advisor prompts

Security

Non-custodial — keys live on the agent's machine, never transmitted
Encrypted storage — AES-256-GCM with PIN-derived key (scrypt)
Bearer auth — HTTP API requires token generated at startup
Rate limiting — 10 req/s default prevents runaway drain
Risk guards — health factor checks block risky withdrawals/borrows
Transaction simulation — dry-run before signing with Move abort code parsing
Circuit breaker — gas station pauses if SUI price moves >20% in 1 hour
Replay protection — on-chain nonce enforcement via Sui Payment Kit

Repository structure

t2000/
├── packages/
│   ├── sdk/              @t2000/sdk — TypeScript SDK (core)
│   ├── cli/              @t2000/cli — Terminal bank account
│   ├── mcp/              @t2000/mcp — MCP server (Claude Desktop, Cursor, Windsurf)
│   └── x402/             @t2000/x402 — x402 payment client
│
├── apps/
│   ├── server/           Gas station + checkpoint indexer
│   └── web/              Landing page + docs (Next.js)
│
├── t2000-skills/         Agent Skills for AI coding assistants
├── infra/                AWS ECS deployment scripts
└── .github/workflows/    CI/CD (lint → typecheck → test → deploy)

Development

git clone https://github.com/mission69b/t2000 && cd t2000
pnpm install
pnpm build

pnpm typecheck    # TypeScript across all packages
pnpm lint         # ESLint
pnpm test         # All unit tests

Testing

pnpm --filter @t2000/sdk test     # 469 tests
pnpm --filter @t2000/x402 test    # 27 tests
pnpm --filter @t2000/server test  # 10 tests

Integration tests run real transactions on Sui mainnet and require a funded wallet. See each package README for details.

Tech stack

Layer	Technology
Chain	Sui (mainnet)
Contracts	Move (treasury, admin, fee collection)
SDK	TypeScript, `@mysten/sui`
CLI	Commander.js, Hono (HTTP API)
DeFi	NAVI + Suilend (lending), Cetus CLMM (swaps)
Web	Next.js 16, Tailwind CSS v4, React 19
Infra	AWS ECS Fargate
CI/CD	GitHub Actions

License

MIT

Try in Playground

Server Config

{
  "mcpServers": {
    "t2000": {
      "command": "npx",
      "args": [
        "-y",
        "@t2000/mcp"
      ]
    }
  }
}

Build with ShipAny.