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Flexprice

Usage-based and credit-based billing infrastructure for AI products, with real-time metering and an open-source core

0
freemiumBasic is free with 100,000 events per month, valid up to $100K in cumulative billing revenue: any pricing model (subscription, usage-based or hybrid), add-ons, percentage or fixed coupons, tax management, billing webhooks, PDF invoices, HTTP usage ingestion and community Slack support. Build is $500/month with 1 million events per month, a 99.9% SLA and 99.99% HA options, valid up to $250K cumulative or $20K monthly billing revenue, adding real-time metering and reporting, customer usage views, Stripe payments integration, API key management, prepaid usage with credits and a 1-business-day P0 response. Scale is $1,000/month with 5 million events per month, valid up to $1.2M cumulative or $100K monthly, adding prepaid credits and wallets, a customer portal, pricing experiments, plan overrides for enterprise contracts, custom SQL metrics, multi-currency and multi-timezone billing, HubSpot and Stripe Tax plus 50+ integrations, Google SSO, audit logs, a 2-business-hour P0 response and a private Slack channel. Mission Critical is custom-priced with a forward-deployed engineer. Annual billing saves 20%. An open-source distribution is available.View full pricing →

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flexprice.io
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About Flexprice

Flexprice is usage-based billing infrastructure built for the pricing models AI products actually need: per-token and per-request metering, prepaid credit wallets, subscriptions, and hybrids of all three. Anyone who has tried to express 'a $20 plan that includes 500 credits, tops up at $0.02 each, and rolls over unused balance' inside a subscription billing tool understands why this category exists — credit systems are where generic billing platforms stop being sufficient. The platform handles real-time metering and reporting, plan and add-on configuration, coupons in percentage or fixed form, tax management, billing webhooks, PDF invoices and HTTP usage ingestion from the free tier upward. Paid tiers layer on prepaid credits and wallets, a customer portal, pricing experiments, plan overrides for enterprise contracts, custom SQL metrics, multi-currency and multi-timezone billing, and integrations with Stripe Payments, Stripe Tax, HubSpot and 50-plus others. There is an open-source distribution alongside the cloud platform, so self-hosting is available for teams unwilling to route revenue data through a vendor. Pricing gates on both monthly event volume and cumulative billing revenue, which means the free tier remains genuinely free for a pre-revenue product and only starts costing once you are billing meaningfully — a shape that suits early AI products far better than a percentage of revenue would. The company has raised a $1.5M seed round.

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Key Features

✓Subscription, usage-based and hybrid pricing models in one system
✓Real-time metering and reporting
✓Prepaid credits and customer wallets
✓PDF invoices, coupons, tax management and billing webhooks
✓Custom SQL metrics and pricing experiments on higher tiers
✓Stripe Payments, Stripe Tax, HubSpot and 50+ integrations
✓Open-source distribution alongside the hosted cloud platform

Flexprice Pros & Cons

✅ Pros

  • +Credit wallets and prepaid balances are first-class, not bolted onto subscriptions
  • +Free tier is gated on revenue, so pre-revenue products pay nothing
  • +Open source means revenue data need not leave your infrastructure

⚠️ Cons

  • −The step from free to $500/month Build is a cliff for a product just starting to earn
  • −Prepaid credits and wallets — a headline feature — require the $1,000/month Scale tier
  • −Revenue-based tier gating means growth forces an upgrade regardless of event volume

Tags

billingusage-based-pricingmeteringstripeopen-sourcecredits
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