Flexprice

7.0easy start · #4 of 27
in Usage-Based Billing Software

Free to practise onyes
Free trialnot on record
Well documentedyes
Runs where you worknot on record

Runs on api, Web. Paid plans from $299/mo.

Flexprice is ranked #4 of 27 in usage-based billing software on The Geeks Club. It runs on API, Web. There is a free plan. Paid plans start at $299/mo.

Flexprice plans and pricing

All plans

Developer Free Up to 100,000 events/month · 1 pricing plan · REST API + 1 SDK · Basic invoice generation · Email support · 14-day data retention flexprice.org · 29 Sept 2026

Growth $299/mo $299/month Up to 5,000,000 events/month · $0.06 per additional 10K events · Unlimited pricing plans · All SDKs + Kafka connector · Multi-currency invoicing · Dunning + retry logic · Revenue analytics dashboard · Priority support flexprice.org · 29 Sept 2026

Enterprise Not published 100M+ events/month and above · Custom event volume SLA · 99.95% accuracy SLA (contractual) · Dedicated Kafka cluster · SSO/SAML · Custom integrations · Dedicated Slack channel + TAM flexprice.org · 29 Sept 2026

Compared on usage-based billing software

Free plan: Yes
Paid from: $299/mo
Billing model: subscription-plus-usage
API metering: Yes
Event ingestion: Yes
Prepaid credits: Yes
Invoice generation: Yes
Rating methods: flat, per-seat, graduated, tiered, volume-based, credit packs, minimum commitments

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The record

Purpose: Flexprice handles usage metering, pricing logic, and invoice generation for AI and SaaS teams.
Metering: Usage events can be streamed through REST API, SDKs, or direct Kafka integration, with deduplication, idempotency keys, and exactly-once aggregation across time windows.
Pricing models: Its pricing engine supports flat, per-seat, graduated, tiered, volume-based, credit-pack, and minimum-commitment models configured in the UI.
Invoicing: Invoice generation handles proration, mid-cycle plan changes, multi-currency, tax line items, PDF delivery, payment collection through Stripe or Braintree, and dunning.
Integrations: The site lists Stripe, Salesforce, HubSpot, Segment, AWS, GCP, Kafka, Snowflake, dbt, Postgres, Slack, and Zapier among its integrations.
Event scale: The homepage states that Flexprice handles 100M+ events per month and has under 50 ms p99 ingestion latency.
Invoice accuracy: The homepage states a 99.95% invoice accuracy SLA.
Free plan limits: The Developer plan includes 100,000 events per month, one pricing plan, and 14-day data retention.
Growth overage: The Growth plan allows up to 5,000,000 events per month and lists $0.06 per additional 10K events.
Enterprise terms: The Enterprise plan lists custom event volume, a dedicated Kafka cluster, SSO/SAML, custom integrations, and a dedicated Slack channel and TAM.
Intended users: Flexprice describes its product as billing infrastructure for AI and SaaS teams, including engineering and finance teams.
Company details: The homepage says Flexprice was founded in 2021 and is based in San Francisco, California.
Founded: 2021
Headquarters: San Francisco, CA
Price from: $299/mo

Where it ranks on The Geeks Club

Best Usage-Based Billing Software in 2026#4 of 27

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Sources

flexprice.org· checked 29 Sept 2026