Power billing

Every event counted. Every invoice exact.

Tessera meters every usage event the moment it lands and turns it into an accurate, real-time invoice.

Start free Read the docs
Metered in
41 ms
Accrued today
$513.76
updated live
api.request
acct_8fd2c1
$0.000400

You moved to usage-based pricing.
Your billing stack didn’t.

Metering is the part everyone underestimates — and the part finance, engineering, and your customers all depend on being right.

The old way

Metering built in-house, maintained forever — a pipeline nobody wanted to own and nobody wants to touch.

nightly_metering.py · last run 03:00 · 6h ago
computed total $398.50
Aug 01 14,220 $128.40
Aug 02 15,880 $143.30
Aug 03 15,590 $140.30
$412.00

usage numbers don't match invoices again 😩

14 replies
TICKET-2261 · Fix metering drift Backlog
opened 41 days ago
≠
  • Engineers maintain a metering pipeline nobody wanted to own.
  • Usage aggregates nightly, so the number arrives too late to fix.
  • Every pricing experiment needs a sprint and a migration.

The new way

Metering as infrastructure — events priced on arrival, accurate to the second, changeable without a deploy.

api.request · 14:22:07.918
41 ms
Invoice line · $0.000400
Accrued $513.76
One system
  • Events are metered on arrival and priced in real time.
  • Customers and finance see the same number, always current.
  • Change pricing in the dashboard, not in a deploy.
Tutorial

From first event to first invoice in ten minutes

Watch a working setup end to end — send events from your app, define a pricing model, and generate an invoice you can hand to a customer. No slides.

Northwind AI
Live · eu-central-1
Events today 1,284,402
Accrued $513.76
p99 ingest 41 ms
Open invoices 12

Events

api.request $0.4000
model.tokens $1.2618
storage.write $0.0186
compute.seconds $0.2160
egress.gb $0.1080
1,284,402 today View all →

Pricing

0 – 100k $0.0120
100k – 500k $0.0104
500k+ $0.0091

Simulated on August usage · +6.2%

Invoice

Draft
API requests $2,104.80
GPU compute $4,812.40
Storage $1,286.95
$8,204.15 Publish
Synced to Stripe
Setup walkthrough · 4:20
Our solution

One pipeline from raw usage event to finished invoice — metered, priced, and auditable without anyone touching a spreadsheet.

See usage the second it happens, not the morning after

Send events over the API or stream them in bulk; Tessera ingests, deduplicates, and aggregates them on arrival at 41ms p99. Customers watch usage climb in real time, and your team stops discovering billing problems at month end.

api.request acct_8fd2c1 · qty 1
14:22:07.918
metered in 41 ms
Added to invoice +$0.000400
Accrued $513.76 live
Nightly batch would update in 9h 12m Real-time
Events today 1,284,402
Last batch 03:00 · 9 hours ago
compute.gpu_second
pricing…

See it on your own usage data

Send events from a sandbox in under ten minutes and compare the invoice against whatever you bill on today. Free through your first million events every month.

Start freeWatch a demo
“We built our own metering twice and rewrote it twice. Tessera replaced 9,000 lines of code that two engineers were babysitting, and we shipped a new pricing tier the week after we switched.”
Maya Okonkwo Maya Okonkwo VP Engineering — Northwind AI
Impact

Accuracy you can hand to
finance, auditors, and customers

Measured across teams who moved from in-house metering to Tessera.

p99 ingest latency 41ms Usage is metered and priced on arrival, not batched overnight.
Three colleagues reviewing usage data on a tablet
Events metered daily 1.2B Ingest scales with your product, including spikes you didn’t plan for.
Billing accuracy 99.99% Every invoice line traces back to the exact events behind it.
Average time to first invoice 6 days From first event to a customer-ready invoice, including pricing setup.
Integrations

Fits the stack you already bill on

Send events from anywhere, push priced invoices anywhere — plus a REST API and webhooks for everything else.

Slack Trello Asana Jira Google Calendar Slack Trello G2 Asana Jira Google Calendar Slack Trello Asana

Questions. Answers.

Stop guessing what to charge

Meter your first million events free. No credit card, no migration, no sales call.

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