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FinancialMCP serverFirst audited Nov 13, 2026

AI Agent Tokenized Stock OS

Non-custodial MCP for Stock Tokens on Robinhood Chain (4663): quotes, plans, Morpho Earn.The vendor's description, from its MCP Registry listing.

Passed, with 1 warningAudited Nov 13, 2026
  • Warning: 32 of 37 tools do not say whether they can change things.

Nothing failed, but there is something to know or fix. Public audit: we connect as an AI client would, list the tools and check what they say. We do not run them. How we audit

Does it work?
YesConnected in 253 ms.
Sign-up?
None neededIt answered without any account or key.
Can it change things?
YesSome tools say they can change things, and others do not say.
Endpointhttps://aatos.dev/mcp

Website Streamable HTTP · protocol 2025-11-25 · server version 1.1.0

What we checked, the evidence, and the tools it offers.

What we checked

Security

  • Passed: Connections are encrypted (HTTPS).

  • Passed: No hidden instructions found in tool text.

Safety labels

  • Warning: 32 of 37 tools do not say whether they can change things.

    MCP lets a server label each tool as read-only or destructive, so clients can ask the user before risky calls. Unlabelled tools are treated as able to change things.

    • stocktoken_access_pricing
    • stocktoken_access_checkout
    • stocktoken_access_activate
    • stocktoken_access_status
    • stocktoken_get
    • stocktoken_value_holdings
    • stocktoken_policy_get
    • stocktoken_policy_set
    • and 24 more
  • Note: 1 tool is labelled as able to change things.

    Expected for tools that send, write or buy. Your AI client should ask before calling them.

    • stocktoken_execute_plan

Tools

  • Passed: 37 tools listed.

  • Passed: Every tool describes its inputs with a valid schema.

Protocol

  • Passed: The MCP handshake works (Streamable HTTP).

  • Passed: Protocol version 2025-11-25 (latest).

  • Passed: Unknown requests are refused.

Connection

  • Passed: The server responds.

Tools (37)

As the server describes them. The labels are the server's own: it says whether each tool only reads or can change things.

  • stocktoken_access_pricingList Free / Pro / Team pricing (ETH on-chain, no Stripe) and how agents pay for write tools.Doesn't say
  • stocktoken_access_checkoutBuild on-chain ETH payment plan for Pro/Team. After user pays, call stocktoken_access_activate.Doesn't say
  • stocktoken_access_activateAfter ETH payment to treasury is confirmed, verify and issue API key (shown once).Doesn't say
  • stocktoken_access_statusCheck paid access for current API key context or a wallet owner.Doesn't say
  • stocktoken_listList canonical Stock Tokens, ETFs, USDG, and WETH on Robinhood Chain 4663. Use this before trusting any address. Do NOT use for US brokerage equities (use Robinhood Trading MCP). Only registry addres…Read-only
  • stocktoken_getGet metadata for one canonical Stock Token or core asset by symbol (e.g. NVDA) or contract address on Robinhood Chain 4663. Use to verify a token is official before trading.Doesn't say
  • stocktoken_priceRead the Chainlink USD price and ERC-8056 uiMultiplier for one registry token on chain 4663. This is not a swap quote and not a brokerage quote. Use stocktoken_quote when you need amountOut.Read-only
  • stocktoken_value_holdingsRead balances. This does not quote or swap. For a trade, use stocktoken_quote then stocktoken_execute_plan.Doesn't say
  • stocktoken_policy_getGet current AI Agent Tokenized Stock OS agent policy (max notional, slippage, simulate-first, kill switch).Doesn't say
  • stocktoken_policy_setUpdate session policy guardrails for AI Agent Tokenized Stock OS.Doesn't say
  • stocktoken_quoteQuote a Stock Token swap on chain 4663. Compares 0x, the Uniswap API, on-chain Uniswap v3, and hookless Uniswap v4, and returns the executable route with the higher amountOut. If none is executable,…Read-only
  • stocktoken_simulatePre-trade check on chain 4663: allowlist, policy limits, and whether the quote is executable. This is not an eth_call of the swap. Pro required. If executable is false, stop and do not promise a fill.Read-only
  • stocktoken_execute_planBuild an unsigned swap plan on chain 4663. Picks the executable venue with the higher amountOut (v4, v3, 0x, or Uniswap API). Steps are an ETH fee of about 10 bps, token approve, and the swap. v4 als…Can change things
  • stocktoken_session_createCreate a durable agent session with scoped permissions (persisted to DATA_DIR). Non-custodial.Doesn't say
  • stocktoken_session_killKill an agent session immediately (kill switch).Doesn't say
  • stocktoken_session_listList agent sessions, optionally filtered by owner.Doesn't say
  • stocktoken_session_updateUpdate limits/permissions on an existing session.Doesn't say
  • stocktoken_protocolsReturn Uniswap Universal Router, PoolManager, WETH, USDG, and feed source metadata for Robinhood Chain 4663.Doesn't say
  • stocktoken_feesSummarize disclosed AATOS execution fee events and on-chain monetization status (treasury / ETH fees).Doesn't say
  • stocktoken_subscription_tiersList AATOS on-chain subscription tiers (paid in ETH to treasury). No Stripe.Doesn't say
  • stocktoken_subscribe_planBuild non-custodial ETH subscription plan (tier pro|team, or custom ethAmount). Pays treasury on chain 4663.Doesn't say
  • stocktoken_subscription_statusCheck on-chain subscription status for a wallet (requires SUBSCRIPTION_REGISTRY_ADDRESS when deployed).Doesn't say
  • stocktoken_tip_presetsList optional tip presets (ETH) and what assets the tip wallet accepts (ETH, any ERC-20 on 4663, optional native BTC). Tips never required.Doesn't say
  • stocktoken_tip_assetsWhat the AATOS tip wallet can accept: native ETH + any ERC-20 on Robinhood Chain 4663; optional native BTC address if configured.Doesn't say
  • stocktoken_tip_planBuild OPTIONAL tip plan. asset=ETH (default) | BTC | registry symbol (USDG,WETH,NVDA,…) | 0x token. amount or ETH preset. User must confirm. Never coerce.Doesn't say
  • stocktoken_metricsOperational metrics for this AI Agent Tokenized Stock OS process.Doesn't say
  • stocktoken_morpho_statusMorpho / Robinhood Earn status on chain 4663: Steakhouse USDG vault address, live TVL, share price.Doesn't say
  • stocktoken_morpho_positionRead a wallet's Morpho Earn (steakUSDG) share balance and underlying USDG on chain 4663.Doesn't say
  • stocktoken_morpho_deposit_planBuild non-custodial ERC-4626 deposit plan (approve USDG + deposit) into Morpho Steakhouse Earn vault. Does NOT broadcast.Doesn't say
  • stocktoken_morpho_withdraw_planBuild non-custodial Morpho Earn withdraw (by USDG) or redeem (by shares) plan. Does NOT broadcast.Doesn't say
  • stocktoken_intent_typed_dataBuild EIP-712 typed data for an agent trade intent (offchain authorization standard). User/wallet signs; onchain verifier later.Doesn't say
  • stocktoken_basket_previewPreview basket prices only. This does not swap and it is not a vault deposit. For one Stock Token, use stocktoken_quote then stocktoken_execute_plan.Doesn't say
  • stocktoken_permit2_prepareOptional Permit2 helper. stocktoken_execute_plan already includes the Permit2 approval on a v4 route. Use this only when you are assembling a plan by hand.Doesn't say
  • stocktoken_liquidity_matrixLiquidity matrix for major USDG pairs on chain 4663. each row reports hookless Uniswap v4 and on-chain v3. eitherExecutable true means at least one of those can fill the sample size. A false row is n…Doesn't say
  • stocktoken_find_poolsScan Uniswap v3 pool addresses only. This is not a fill check and it does not see v4. For a swap, use stocktoken_quote then stocktoken_execute_plan.Doesn't say
  • stocktoken_system_statusFull system status: secrets, venues, chain, version, session count, fees.Doesn't say
  • stocktoken_explain_routingStart here. Brokerage equities go to Robinhood Trading MCP. Stock Tokens on chain 4663 stay here: stocktoken_list, stocktoken_price, stocktoken_quote, stocktoken_execute_plan.Doesn't say

Audit history

  1. Nov 13Warnings

What we sent

Every request in this audit, with the answer and how long it took. We never send credentials and never call a tool.

RequestAnswerTime
initializeHTTP 200253 ms
initializedHTTP 202214 ms
tools/listHTTP 200192 ms
unknown-methodHTTP 200108 ms

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