Finance layer for software that thinks
The financial substrate for the intelligence era
Powerful usage billing for modern software
Meter anything your product does. Compose it with subscriptions, seats, credits, and trials into whatever shape your pricing takes.
Measure the usage
Every call, token, and second your users consume, recorded the moment it happens.
Calculate the charge
Raw events roll into priced units. Per seat, per token, tiered or hybrid. However you wish to price.
Merchant of Record
We take on all the liability. Sales tax, VAT & chargebacks land on our name, not yours.
Know your unit economics
Revenue, costs & margins in one overview. The unit economics every AI startup needs to scale with confidence.
Your power users cost you money
Polar breaks down spend customer by customer, so you catch the ones bleeding your margins before they bleed your runway.
Customer
Revenue
LLM cost
Gross margin
Jane Doe
Enterprise · 4.1M tokens
$4,200
$294
+93%
John Doe
Growth · 3.3M tokens
$1,800
$234
+87%
Emily Carter
Growth · 2.6M tokens
$920
$184
+80%
Michael Chen
Hobby · 5.5M tokens
$480
$389
+19%
Sarah Müller
Hobby · 8.7M tokens
$90
$612
-580%
Turn any AI workload into revenue
From token-metered APIs to autonomous agents and GPU workloads. Polar fits how modern AI products actually charge.
AI completions
Wrap any model from the Vercel AI SDK with the Polar LLMStrategy. Token usage is metered and billed automatically on every call.
import { Ingestion } from '@polar-sh/ingestion'
import { LLMStrategy } from '@polar-sh/ingestion/strategies/LLM'
import { generateText } from 'ai'
import { openai } from '@ai-sdk/openai'
const llm = Ingestion({ accessToken: process.env.POLAR_ACCESS_TOKEN })
.strategy(new LLMStrategy(openai('gpt-4o')))
.ingest('openai-usage')
const { text } = await generateText({
model: llm.client({ customerId: user.id }),
prompt,
})Everything between usage & revenue
Raw usage goes in. Revenue comes out. We handle everything in between.
John Doe
Consumed 23,820 tokens
Polar
Customer invoiced automatically
LLM Usage Breakdown
Margins, Profits & Cashflow Metrics
Cost Anomalies & Insights
Tax Collection & Remittance
Payment Processing
Refunds & Chargebacks
Risk Analysis & Fraud
Merchant Payout
Acme Inc
$9,311
SEB **** 9128
Event-based usage billing. Checkouts that convert. Realtime metrics. Worldwide tax handled.
Polar is the financial layer for a new generation of intelligent software.
What industry leaders think about Polar
From AI startups to infrastructure veterans, the teams building the future ship production billing on Polar in days, not weeks.
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.
The speed at which Polar is executing on the financial infrastructure primitives the new world needs is very impressive.
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.
Polar has been giving us the high attention support of a startup, with an enterprise-level product and service.
We switched to @polar_sh because of their killer API, UX, and product. Also love that it's Open-Source. Their team cares A LOT as well. Worth the minor fee difference.
You can tell @polar_sh is building DX first
Starter
Free to start validating ideas.
Fees
5.00% + 50¢ per transaction
Features
All features to sell
Standard support
Pro
For builders & early teams.
Fees
3.80% + 40¢ per transaction
Features
All features on Starter
Preview access to new features
Prioritized support
Growth
For scaling startups.
Fees
3.60% + 35¢ per transaction
Features
All features on Pro
Preview access to new features
Prioritized support
Scale
For fast growing businesses.
Fees
3.40% + 30¢ per transaction
Features
All features on Growth
Preview access to new features
Shared Slack channel
P1 Support
Single Sign-On