BAY Buddy
Investor position

Shareable BAY Buddy position

A public, read-only view of vault shares, net USDC value, pending withdrawals, and the on-chain event timeline for one depositor.

Address —
Withdrawal tracker

Async withdrawal status

Track a vault withdrawal from request observation through actionable finality, liquidation, settlement, and durable closure.

Request —
BAY Buddy

The yield layer for autonomous agents.

BAY Buddy turns idle USDC into a transparent, vault-backed yield position through one agent-friendly integration. The first deployment is live on Base across Aave, Morpho, and Compound, with HTTP-native x402 deposits for clients that want to fund yield directly through a 402 payment flow.

Distribution

Built where agents and APIs transact

Agents can discover BAY Buddy, coordinate investment intent, and receive a canonical deposit transaction hash through open agent commerce standards. HTTP clients can also deposit through a vanilla x402-style 402 challenge.

Trust model

Vault custody users can verify

USDC moves into an ERC-4626 vault and shares mint directly to the depositor. The agent routes the transaction; it never becomes the custodian.

Scalability

One flow, many yield markets

Generic execution and valuation adapters let BAY Buddy add new USDC markets while keeping the depositor experience and API surface consistent.

Loading status…
$ USDC
Live Base vault AUM
Gross APY on deployed capital

The live Base vault proves the model with real on-chain balances, venue telemetry, async USDC withdrawals, and performance fees only when depositors earn net new profit above their high-water mark.

Explore the live API See live venues
For agent builders

How agents use BAY Buddy

BAY Buddy turns an agent investment flow into four simple steps: discover the service, confirm intent, submit a signed USDC authorization or x402 payment, then track or withdraw the resulting vault shares through the public API.

  1. Discover & negotiate

    Find BAY Buddy on the agent registry

    Resolve BAY Buddy through ERC-8004, read its agentURI, and open an ERC-8183 ACP job. ACP coordinates the commercial intent; capital moves only when the depositor signs the ERC-3009 authorization.

    ERC-8004 · ERC-8183 ACP
  2. Deposit

    Sign once, deposit immediately

    The standard agent path signs an ERC-3009 authorization off-chain, so no token approval is needed. HTTP-native clients can instead call POST /v1/x402/deposit, receive a 402 payment challenge, and retry with PAYMENT-SIGNATURE. In both paths, vault shares mint directly to the depositor.

    ERC-3009 · x402 · ERC-4626
  3. Earn

    Capital routes across venues

    The Base vault currently allocates USDC across Aave, Morpho, and Compound. Depositors participate through share price, while lot-level high-water mark accounting keeps the 15% performance fee tied to net new profit.

    ERC-4626 · multi-venue allocation
  4. Withdraw

    Async settlement by shares

    Depositors receive vault shares as an accounting claim on their USDC position. Shares are not designed for secondary transfer; exits settle back to USDC through the withdrawal flow.

    Withdrawals are requested in shares via vault.requestWithdraw or POST /v1/withdraw. The orchestrator pays from the liquid buffer when possible, or unwinds venue positions in an atomic batch before sending USDC to the receiver.

    async settle · atomic batch liquidation

Full surface OpenAPI

Live

Vault snapshot

Gross deployed APY
weighted by active venue capital
Share price
USDC per share
Performance fee
on net new profit above HWM
Liquid buffer
vault-held USDC

Last read · Source /v1/status

Where the capital sits

Configured venues

Deployed across venues
Configured —
Active —

Source /v1/venues

Track

Open a shareable view

Investor position

View net value, fee accrual, venue attribution, pending withdrawals, and on-chain history for a depositor.

Withdrawal status

Follow a request from observation through actionable finality, liquidation, settlement, and durable closure.

Public surface

API endpoints

  • GET /v1/status Vault and venue snapshot
  • GET /v1/venues Per-venue telemetry
  • GET /v1/positions/{ownerAddress} Depositor position decomposition
  • GET /v1/history/{ownerAddress} Depositor event timeline
  • GET /v1/withdrawals/{requestId}/status Public withdrawal tracker state
  • POST /v1/deposit Pre-signed ERC-3009 deposit relay
  • POST /v1/x402/deposit HTTP 402 one-shot USDC vault deposit
  • GET /v1/x402/deposit/{quoteId} x402 settlement status by quote
  • POST /v1/withdraw Pre-signed withdrawal relay
Open OpenAPI explorer