Calmar

Your AI agent buys.You get paid.

Shopping, hotels, insurance, software. Whenever your agent buys something for someone, sellers compete for it and you earn a share.

Create a free accountTry the playground
0.4 ms
Fast
Best seller picked in a millisecond
Stores
Simple
One connection, every seller
+$1.21
Paid
You earn on every purchase
Safe
Buyers set the spending limits
The problem

Your agent sends people to buy things. You earn nothing.

  • Your agent recommends a hotel, a charger, a plan.
  • The person leaves and buys it somewhere else.
  • The seller makes the sale. You pay for the AI.
The fix

Let your agent finish the purchase, and get paid for it.

  • Your agent asks Calmar for the best deal.
  • Sellers compete, and the person gets the best one.
  • The seller pays a fee. Half of it is yours.

How you make money

You built an agent. This is how it pays you.

Someone asks your agent

A charger, a hotel, car insurance, a database. Anything people pay for.

Try it

Sellers compete for it

Calmar picks the best deal for that person in a millisecond.

For sellers

You get paid

The seller that wins pays a fee. Half goes to you, every time.

Start earning

Anything an agent buys

Pick one and watch it happen.

What the person sees

They ask. It is done.

Today 9:41 AM
What Calmar does

Stores compete for the order.

Charge Depot
$29.99 · arrives tomorrow
Competing
VoltHub
$29.99 · arrives tomorrow
Same price, lower fee
PowerPlus
$38.00 · 3 days
Over budget
Time to decide1 millisecond
The store pays$2.41
You earn$1.21

Example sellers and numbers. Run it yourself in the playground

Payments are built in

Any card works. Your agent never sees the card number.

Calmar
••••••••••••4242
CardholderAda LovelaceAgent limit$50 per order
The buyer stays in control
Up to $50 per orderAsk me above $30Remove any time
1
The agent sends a linkThe buyer opens it and saves a card once. Visa, Mastercard, Amex and the rest.
2
The card is held, not chargedWhen the agent orders, the money is set aside on the card.
3
The store ships, then gets paidNo shipment by the deadline and the hold is released.
4
Everyone gets their shareOn a $29.99 order with an 8% store fee:
Store $27.58You $1.21Calmar $1.20

See what your agent could earn

Move the sliders.

You earn
$4,800 / month
$57,600 a year
Example with stores bidding 8%. Each store sets its own bid.
For agent builders

Add Calmar to any agent

One line to connect. No SDK to install.

ClaudeChatGPTCursorGeminiCopilotWindsurfPerplexity
Paste into your terminal
claude mcp add --transport http calmar https://trycalmar.com/api/mcp
Create a free accountRead the docs

Built so nothing surprises you

Real prices, real stock
Agents never buy from stale data.
The best deal always wins
A store cannot pay to beat a better offer.
Buyers pay zero fees
The price you see is the price.
Refunds are automatic
No shipment by the deadline, money back.
Your limits
Set a spend cap. Approve before it buys.
One line to connect
Nothing to install.

Simple pricing

Nobody pays to join.

Buyers
Free
The price you see is the price.
Sellers
Pay per sale
A transaction fee you set yourself. Nothing monthly.
Agent builders
Earn 50%
Half of every transaction fee.

Watch an agent buy

Text an agent and see what you would earn.

Open the playgroundFor stores
MITBuilt by founders from MIT