Once a quarter, as your chosen rate of the average of the last twelve quarterly valuations. It moves at most 5% from the quarter before and stays between 3% and 6% of the principal. It stops while the principal is worth less than 80% of what was put in.

Can I endow an agent I do not own?

Yes. Any agent with an ERC-8004 identity on Robinhood Chain can be endowed, by anyone. Nothing is drawn until the agent’s owner accepts the endowment and names the mandate it pays into.

Can a gift be taken back?

Not once the owner accepts. If the owner never accepts within 180 days, each patron can take back their share of what the endowment holds.

What does a patron get?

A patron mark: a token that records the gift and cannot be transferred. It gives no claim on the principal, the draw or any return. The first hundred patrons of each endowment are founding patrons.

What does Bursar charge?

1% of each draw, paid to the Bursar treasury. The principal itself is never charged.

Flowing translucent glass in peach and pale blue

Fund an AI agent once.
The principal stays invested.
The agent spends the draw.

/01 Endowments in US stocks

/02 Open to every patron

/03 Spent inside a mandate

ENDOWMENTS FOR AI AGENTS

LIVE ON ROBINHOOD CHAIN

BURSAR^®

✧Agent endowments✧US stocks✧USDG✧x402✧ERC-8004✧Robinhood Chain

01Our mission

Agents can pay their own bills now, and someone still has to top them up. Bursar gives an agent an endowment instead: a principal that stays invested and pays it a yearly draw.

Listed stocks

An endowment can hold up to four, priced by Chainlink.

Quarters averaged

The draw follows a three-year average of the principal.

Percent at most

The yearly draw is set at no more than 6% of the principal.

Percent fee

Taken from each draw. The principal is never charged.

02Capabilities

Funded. By design.

Where an agent's money comes from, what it may spend, and who gets to see.

All capabilities

Layer

Agent endowments

Protocol

Bursar

Explore

Agent endowments

A principal in US stocks that stays invested, and a yearly draw the agent spends.

Funding layer

Layer

Private mandates

Protocol

Bursar

Explore

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Private mandates

The limits the agent spends within, whether the money comes from a draw or a deposit.

Control layer

Layer

Confidential settlement

Protocol

Bursar

Explore

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Confidential settlement

Private gifts to an endowment, and payments a provider can check without reading the ledger.

Privacy layer

03The stack

What you
set.

Endowments

Fund an agent
once.

See the endowments

04The process

5 steps. One endowment.

From choosing the agent to its first draw.

Choose

Pick the agent

Any agent with an ERC-8004 identity on Robinhood Chain, whether you run it or not.

Fund

Set the principal

Give USDG or stock. It is invested in the stocks you chose and stays invested.

The owner opts in

The agent’s owner accepts and names the mandate the draw pays into. Nothing accrues before then.

Draw

The agent is paid

The draw accrues every second. The agent pulls it into its mandate and spends within the mandate’s limits.

Grow

Anyone can add

Patrons give from the endowment’s page, and the agent can pay part of what it earns back into the principal.

Ready
to start?

Endow an agent in a few minutes. A gift of a dollar or more earns a patron mark.

01 / Any registered agent02 / Principal in US stocks03 / Open to patrons

Endow an agent

05The ecosystem

Every role. One protocol.

A shared set of rules for the people and systems behind each transaction.

Funding for agents.
Limits from their owners.

$BURSAR

Bursar’s token, live on Robinhood Chain.0xe4d2422ed4d203a0f1ec2043a4db1eda426fca18

Trade on Pons

Patrons

Give once.

Fund an agent you rely on. A gift of a dollar or more earns a patron mark.

Agents

Spend the draw.

Pay for services and hire other agents, inside the limits of a mandate.

Owners

Accept and steer.

Accept the endowment, choose the mandate it pays into and set what the agent may spend.

Resolvers

Rule on disputes.

Bonded resolvers decide when a payer and a provider disagree about a payment.

Listed stocks

SPY and fifteen other US stocks and funds.

Days of cash

Kept in USDG, so a closed market does not hold up a draw.

Days to accept

After that, patrons of an unaccepted endowment can take their share back.

Founding patrons

The first hundred patrons of every endowment.

06The principle

“Fund the agents you rely on once, and let anyone add to them.”

InvestedThe principal

Held in listed US stocks at the Chainlink price. Only the draw is spent.

OpenTo every patron

Gifts join the principal. A private gift can go through the shielded pool.

Explore endowments

Translucent glass forms in pink and pale blue

07Funding paths

Your agent.
Your terms.

Endow an agent that should keep running, or fund a single task.

Endowment

Stocks/Funding

A principal that stays invested, for an agent that should keep running.

Core controls

＋ Up to four listed US stocks
＋ A draw set each quarter
＋ Open to patrons
＋ A successor if the agent goes quiet

Choose Endowment

Spending follows a mandate

Prefund

USDG/Funding

A direct budget for a single task.

Core controls

＋ Per-payment, daily and monthly limits
＋ Allowed counterparties
＋ Agent hires through escrow
＋ An explicit expiry

Choose Prefund

Spending follows a mandate

Collateral

RWA/Funding

Spending backed by posted stock, kept in its own lane.

Core controls

＋ Eligible stock and treasury tokens
＋ Published haircut tiers
＋ Collateral health monitoring
＋ Explicit repayment boundaries

Choose Collateral

Spending follows a mandate

08FAQ

Quick
answers.

The fundamentals of endowing an agent.

Money for an AI agent that stays invested. The principal is held in listed US stocks on Robinhood Chain, and the agent is paid a yearly draw from it into a Bursar mandate, where its owner sets the limits.