Meet Polar
Modern billing for AI companies
Current cycle
Acme Inc
joe@acme.com
Tokens metered
9.22B
Revenue
$18,432.17
Visa •••• 4242
Charges Nov 1
Card charge
$20,931.17
Gross margin
61%
Inference cost
$7,104.62
Revenue
Cost
Trusted by leading AI companies
See how they run billing on Polar
“The Polar team treated us like a design partner, not just a customer. They built features we needed on tight timelines and worked collaboratively to resolve issues. That’s rare.”
Siavash Ghorbani, Stilla AI
01Meter anything
Every token becomes revenue
the moment your model streams it
Tokens, agent runs and GPU seconds flow through live meters and land on the invoice, priced however you sell.
Lumen in production
▍
Metering
1,204 tokens
Added to invoice
$0.0024
Measure the usage
Every call, token and GPU second your users consume, recorded the moment it happens.
Learn more
Aggregate into meters
Raw events roll up into a live meter for every customer, updated in real time. No batch jobs, no lag.
Learn more
Bill it automatically
Usage lands on the invoice and settles at the end of every cycle, without any manual reconciliation.
Learn more
02Charge
One invoice for everything
subscriptions, credits and usage together
Combine a base plan, prepaid credits and metered usage on one product. Polar draws credits down first, bills the overage and settles it at the end of the cycle.
Acme Inc on Business
Credits
Drawing down
40,000 / 40,000
Granted with the plan, spent first
Usage beyond credits
$0.00
November Invoice
Open
Business plan
$2,499.00
40,000 credits
Included
Usage beyond credits
—
Visa •••• 4242
$2,499.00
03Understand
Know your margin
for every customer, not just on average
Attach the inference cost to the events you already send. Polar collects the revenue, so it can put the two side by side and show the customer burning more than they pay.
Acme Inc
Unit economics
Gross margin
61%
Inference cost
$7,104.62
Revenue
Cost
Margin by customer
Acme Inc
Business
61%
Northwind
Business
62%
Lumen
Team
51%
Atlas
Flex
-27%
Attach the cost to the events you already send
_cost: { amount: 0.0021, currency: 'usd' }04Sell globally
Polar as the merchant of record
the liability lands on our name, not yours
We act as the reseller of your product in over 100 markets. Payments, sales tax, fraud, refunds and chargebacks are our responsibility, never your paperwork.
Merchant of record
Order
Acme Inc in Berlin
€2,735.81
Business plan
€2,299.00
VAT 19%
€436.81
Your payout
$2,412.60
Polar
100+ markets
Payment captured
Screened for fraud
VAT 19% calculated
Tax remitted in Germany
Paid out to SEB •••• 9128
We take on tax, fraud, refunds and chargebacks
05Agents
Run billing from your agent
Polar in Claude, Cursor and ChatGPT over MCP
Connect the Polar MCP server and ask your agent about customers, usage and revenue, or have it create products, discounts and refunds. Signed in with OAuth, no API keys to paste.
Polar MCP server
Connect
OAuth
claude mcp add --transport http polar https://mcp.polar.sh/mcp/polar-mcp
Claude Code
Cursor
ChatGPT
Claude Desktop
Your browser opens to sign in and authorize. No API key to copy into the agent.
“Polar's Python SDK and Webhook infrastructure made our billing integration straightforward. It gave us production-ready billing in hours, not weeks. It's rare to find a vendor that moves this fast.”
Siavash Ghorbani
Stilla AI
“I've joined Polar as an advisor! I think it benefits everyone for devs to have more options to get paid to work on their passions, to support upstreams, and for users to have more confidence/transparency in the software they're supporting/purchasing.”
Mitchell Hashimoto
Superlogical
“Polar has been giving us the high attention support of a startup, with an enterprise-level product and service.”
Sebastián Ramírez
FastAPI
Start free, upgrade as you grow
Starter
For validating ideas
Free
Transaction fee
5.00% + 50¢
All features to sell
Standard support
Pro
For builders & early teams
$20
/month
Transaction fee
3.80% + 40¢
Preview access to new features
Prioritized support
Growth
For scaling startups
$100
/month
Transaction fee
3.60% + 35¢
Preview access to new features
Prioritized support
Scale
For fast growing businesses
$400
/month
Transaction fee
3.40% + 30¢
Preview access to new features
Shared Slack channel
P1 Support
Single Sign-On
Startup Program
Startup Program
Startup Program
Everything in Scale
Free
for 12 months
Transaction fee
3.40% + 30¢
Preview access to new features
Shared Slack channel
P1 Support
Single Sign-On
From usage to revenue
Integrate in an afternoon