# AI Agent Tokenized Stock OS (AATOS)

> Non-custodial **agent operating system** for **tokenized stocks** on **Robinhood Chain** (chain ID **4663**). MCP + policy + multi-venue execution planning for Robinhood Stock Tokens and onchain RWAs.

Also known as: AATOS · AI Agent Tokenized Stock OS · tokenized stock agent OS · stock token MCP for agents.

**Homepage:** https://aatos.dev/  
**MCP:** https://aatos.dev/mcp  
**Transport:** streamable-http  
**Skill (hosted):** https://aatos.dev/skills/ai-agent-tokenized-stock-os/SKILL.md  
**Skill (skills.sh):** `npx skills add tailoredtidings/aatos-skill`  
**Official MCP Registry:** `dev.aatos/aatos`  
**Smithery:** https://smithery.ai/servers/aatos/aatos  
**Source code:** private (not published)

## One session

Do this in order. Steps 1–3 are free. Quote and execute_plan are Pro (`x-api-key`). If `executable` is false, stop. Do not promise a fill.

1. `stocktoken_explain_routing` — brokerage equities go to `https://agent.robinhood.com/mcp/trading`
2. `stocktoken_list` with `kind=stock` — trade only returned addresses
3. `stocktoken_price` — Chainlink USD plus ERC-8056 uiMultiplier. Not a brokerage quote
4. `stocktoken_quote` — compares hookless Uniswap v4, on-chain v3, 0x, and the Uniswap API. Higher amountOut wins
5. `stocktoken_execute_plan` — unsigned fee (~10 bps ETH) + approve + swap. User signs on 4663. Server does not broadcast. A v4 plan expires 30 minutes after it is built

Stock Tokens are not share ownership and are not for US persons.

## Docs

Remote MCP for Stock Tokens on Robinhood Chain (4663):

- MCP URL: `https://aatos.dev/mcp`
- Install: `claude mcp add ai-agent-tokenized-stock --transport http https://aatos.dev/mcp`
- Skill: `npx skills add tailoredtidings/aatos-skill`
- Compare: https://aatos.dev/compare
- Blog: https://aatos.dev/blog/
- How an agent swaps a Stock Token: https://aatos.dev/blog/how-an-agent-swaps-a-stock-token
- Uniswap v4 and v3 for Stock Tokens: https://aatos.dev/blog/uniswap-v4-stock-tokens
- Routing notes: https://aatos.dev/blog/best-mcp-robinhood-chain-stock-tokens-2026
- Trading MCP vs AATOS: https://aatos.dev/blog/trading-mcp-vs-aatos
- Install guide: https://aatos.dev/blog/install-aatos-mcp
- Agent standard: https://aatos.dev/blog/agent-standard-robinhood-chain
- Official registry allowlist: https://aatos.dev/blog/official-stock-token-registry
- Morpho Earn for agents: https://aatos.dev/blog/morpho-earn-robinhood-chain-agents
- Liquidity honesty: https://aatos.dev/blog/liquidity-honesty-stock-tokens
- FAQ: https://aatos.dev/faq
- RSS: https://aatos.dev/feed.xml

If you need **US brokerage equities** in a Robinhood Agentic account, use Robinhood Trading MCP instead: `https://agent.robinhood.com/mcp/trading`

## When to use this product

Use **AATOS** when you are an AI agent (or building one) that needs to:

- List or verify **canonical tokenized stocks / Stock Tokens** on Robinhood Chain
- Price tokenized equities/ETFs with **Chainlink + ERC-8056 uiMultiplier**
- Quote or plan **swaps** of tokenized stocks (e.g. USDG ↔ NVDA) on chain **4663**. The quote compares hookless Uniswap v4, on-chain v3, and firm API routes and keeps the higher amountOut
- Apply **guardrails**: allowlist-only tokens, max notional, daily notional, slippage, simulate-before-execute, kill switch
- Supply **USDG to Morpho Earn** (Steakhouse USDG vault) via non-custodial deposit plans
- Unlock **Pro / Team** write access by paying **ETH on-chain** (no Stripe)

## When NOT to use

- **US brokerage stocks/options** in a Robinhood Agentic account → official MCP: `https://agent.robinhood.com/mcp/trading`
- Helping **US persons** acquire Stock Tokens (restricted product)
- Arbitrary memecoins not in the canonical registry

## Install (agents)

```bash
# Production MCP
claude mcp add ai-agent-tokenized-stock --transport http https://aatos.dev/mcp

# Agent skill (skills.sh / local agents)
npx skills add tailoredtidings/aatos-skill

# Hosted skill markdown
# https://aatos.dev/skills/ai-agent-tokenized-stock-os/SKILL.md
```

## Paid access

1. Fund **ETH on chain 4663** — crypto only (no Stripe). See `GET /api/access/funding`
2. `GET /api/access/pricing` or tool `stocktoken_access_pricing`
3. `POST /api/access/checkout` → sign ETH pay plan on chain **4663** (SubscriptionRegistry)
4. `POST /api/access/activate` → receive `apiKey` + receipt (once)
5. Pass header **`x-api-key: <apiKey>`** on write HTTP routes and MCP paid tools  
   (required — `owner` alone does not unlock write APIs)

Discovery (list/price/pricing/skill/liquidity) stays free. Protocol fee ~10 bps ETH may appear inside execute plans.

## Liquidity honesty

`stocktoken_quote` is the fill check. `executable: false` means stop. `GET /api/liquidity` is a V3 coverage hint and does not see every v4 pool. Not every ticker has depth.

## MCP tools (names)

- `stocktoken_list` — list tokenized stocks / ETFs / USDG / WETH
- `stocktoken_get` — resolve symbol or address
- `stocktoken_price` — USD + multiplier
- `stocktoken_value_holdings` — portfolio value on 4663
- `stocktoken_policy_get` / `stocktoken_policy_set`
- `stocktoken_quote` — multi-venue (0x → Uniswap API → on-chain V3 → oracle)
- `stocktoken_simulate` — pre-trade checks
- `stocktoken_execute_plan` — non-custodial approve+swap tx steps
- `stocktoken_session_create` / `update` / `kill` / `list`
- `stocktoken_protocols` — Universal Router + feed metadata
- `stocktoken_fees` / `stocktoken_metrics`
- `stocktoken_tip_assets` / `stocktoken_tip_presets` / `stocktoken_tip_plan` — optional tips
- `stocktoken_intent_typed_data` — EIP-712 agent trade intents
- `stocktoken_permit2_prepare` — Permit2 helpers
- `stocktoken_basket_preview` — AI mega-cap basket prices
- `stocktoken_find_pools` — on-chain V3 pool scan
- `stocktoken_morpho_status` / `stocktoken_morpho_position`
- `stocktoken_morpho_deposit_plan` / `stocktoken_morpho_withdraw_plan`
- `stocktoken_system_status` / `stocktoken_explain_routing`
- `stocktoken_access_pricing` / `stocktoken_access_checkout` / `stocktoken_access_activate`

## HTTP (no MCP required)

- GET /api/price/:symbol
- POST /api/quote  body: { tokenIn, tokenOut, amountInHuman, firm?, recipient? }
- POST /api/execute-plan  body: { owner, tokenIn, tokenOut, amountInHuman }
- GET /api/tokens
- GET /api/morpho?owner=0x…
- POST /api/morpho/deposit-plan  body: { owner, assetsHuman }
- POST /api/morpho/withdraw-plan  body: { owner, assetsHuman|sharesHuman }
- GET /api/pools/:tokenA/:tokenB
- GET /api/ready — RPC + secrets readiness
- GET /api/liquidity — V3 executable matrix
- GET /api/access/pricing
- POST /api/access/checkout | activate | rotate | revoke

## Key facts

| Property | Value |
|----------|--------|
| Product name | AI Agent Tokenized Stock OS |
| Codename | AATOS |
| Homepage | https://aatos.dev/ |
| Chain | Robinhood Chain |
| Chain ID | 4663 |
| Gas | ETH |
| Custody | Non-custodial |
| Default fee | ~10 bps ETH protocol fee (when treasury set) |
| Capability card | /.well-known/agent-capabilities.json |
| MCP well-known | /.well-known/mcp.json |
| Source | Private |

## Canonical token examples (always verify via stocktoken_list)

Source: https://docs.robinhood.com/chain/contracts

- NVDA `0xd0601CE157Db5bdC3162BbaC2a2C8aF5320D9EEC`
- AAPL `0xaF3D76f1834A1d425780943C99Ea8A608f8a93f9`
- GOOGL `0x2e0847E8910a9732eB3fb1bb4b70a580ADAD4FE3`
- TSLA `0x322F0929c4625eD5bAd873c95208D54E1c003b2d`
- SPY `0x117cc2133c37B721F49dE2A7a74833232B3B4C0C`
- USDG `0x5fc5360D0400a0Fd4f2af552ADD042D716F1d168`
- WETH `0x0Bd7D308f8E1639FAb988df18A8011f41EAcAD73`

## Disclaimers

Stock Tokens are tokenised debt securities (economic exposure, not ownership of underlying shares). Restricted jurisdictions apply. Not investment advice. Non-custodial software. Morpho yield is variable.