AI Billing
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Orb

Enterprise usage-based billing with SQL-defined metrics, pricing simulation, and deep finance integrations.

Invoice-basedPricing SimulationMulti-PSPBilling PortalEnterprise
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Last verified: April 2026

Good fit if...

  • →AI and infrastructure companies with complex multi-dimensional pricing that needs SQL-defined metrics and pricing simulation before rollout
  • →Teams with enterprise contract requirements — commitments, multi-year deals, backdating, and high-volume event processing
  • →Finance teams that need deep ERP integration, revenue recognition, and AR aging in the same billing platform
  • →Companies running hybrid GTM (sales-led and product-led) that want one billing platform for both motions
  • →Teams already managing invoice-based billing that want to add usage metering without replacing their invoicing workflow

Pricing

Model
Enterprise; pricing not publicly disclosed
Free tier
No
Starting price
Contact sales (estimated ~$720/month at small scale based on previously public pricing)
Revenue %
None
Per customer
Not publicly available
Per event
Not publicly available
Seat fees
Not publicly available
Transparency
Opaque

Canonical scenario — 100 customers, $2K MRR, 100K events, 5 seats

Line itemCost
Platform fee~$720 (based on previously public pricing; Orb no longer publishes rates)
Per customer$0
Seat feesNot publicly available
Event fees$0
Revenue %$0
Payment processingPass-through
Total / month~$720 (estimate; current rates require sales)

Orb does not publish pricing. The ~$720/month platform fee estimate is based on previously public pricing captured by third-party analysis before Orb removed its public pricing page. Current rates may differ; Orb's $25M Series B (September 2024) and ongoing product expansion may have affected pricing. Payment processing fees are charged by the connected PSP at pass-through rates. A sales conversation is required for current pricing.

Technical profile

DimensionValue
Billing model
Invoice
Usage authorization
Post-usage
Threshold invoicing can trigger mid-cycle but remains post-consumption. Agentic Payment Methods (launched 2026) introduce new AI-agent payment flows but are not a pre-usage wallet authorization primitive.
Usage tracking
Real-time metering + periodic invoice
Wallet architecture
Add-on
Sophisticated credit pools are a documented feature. They operate inside an invoice-based billing system: credits reduce invoice totals rather than being debited atomically per usage event.
Multi-asset support
USD-with-labels
Payment processing
Integrated
PSP agnostic
Partial
Customer portal
Hosted portal
Pre-authenticated hosted portal shows usage and invoices. No self-service wallet top-up or real-time balance management is available to end customers.
Auto top-up
Platform-configured
Platform (merchant) sets top-up thresholds on behalf of customers. End customers have no self-service threshold control.
Integration model
Replaces stack
Profitability analytics
Aggregate
Open source
No
License
Proprietary
Deployment
Cloud only
Enterprise contracts
Full support
Pricing models
Per-unit, Tiered, Volume, Subscription, Hybrid (subscription + usage), Prepaid credits / wallet, Seat-based, Dimensional, Custom / SQL-defined

Strengths

  • +Pricing simulation — retrospective testing of pricing model changes against historical usage before deployment, reducing migration risk
  • +Custom SQL metrics for complex aggregation logic, supporting multi-dimensional billing (region, model, tier, customer segment) without bespoke pipelines
  • +High-throughput hosted rollups architecture designed to process millions of events per second with backfill support for late data
  • +Deep finance integrations — NetSuite, Salesforce, data warehouses, and ASC 606 revenue recognition alongside detailed invoice management
  • +Multi-year enterprise contracts with commitments, backdating, amendments, and multi-product deals
  • +Agentic payment support for AI agents executing payments on behalf of end users, launched in 2026

Limitations

  • −Post-usage invoicing model — usage accumulates and is billed at cycle end; threshold invoicing triggers mid-cycle but is still post-consumption
  • −Pricing not publicly available — enterprise-level pricing requires a sales conversation with no published starting figure
  • −No real-time pre-authorization primitive — there is no documented way to query wallet state and block an action before it runs
  • −Auto top-up is platform-configured — end customers cannot set their own top-up threshold or amount via self-service
  • −Implementation overhead — setting up metering, pricing models, and invoice workflows requires engineering resources and billing expertise
  • −Credit portal is read-only — customers view usage and invoices but cannot perform self-service top-ups or manage wallet balances

Not ideal for

  • ×Products needing real-time wallet pre-authorization before individual usage events are incurred
  • ×Teams with monthly billing budgets under a few thousand dollars; enterprise pricing requires a sales conversation
  • ×Early-stage teams that need quick implementation; Orb's SQL metrics and pricing model setup requires dedicated billing engineering time
  • ×Products requiring customer-controlled self-service top-up with real-time visible wallet balances

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Lago
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Flexprice
Open-source usage metering and wallet-credit billing with a no-code pricing dashboard for SaaS and AI teams.
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Company

Founded
2021
Headquarters
San Francisco, CA, USA
Funding
Series B; $25M Series B (September 2024, Mayfield lead). Total raised ~$44M.

Sources