OpenMeter

San Francisco, United States Founded: 2023 • Age: 3 yrs Acquired By Kong
Open-source usage metering platform for AI, DevOps, and billing

About OpenMeter

OpenMeter is a Financial Services company based in San Francisco (United States) founded in 2023 by Peter Marton and Andras Toth, and was acquired by Kong in September 2025. OpenMeter has raised $3.13 million across 2 funding rounds from investors including Kong, Y Combinator and Haystack. Its chief executive, as recorded, is Peter Marton. Its website openmeter.io draws about 20 thousand monthly visits. OpenMeter offers products and services including OpenMeter Platform, API & SDKs, and Collectors. Its focus areas include FinTech, Payments, Business Payments and Payment Data Analytics. Its legal entity is Tailfin Cloud Inc.

Company details

Open-source usage metering platform for AI, DevOps, and billing. It enables scalable usage-based billing, cloud cost management, and real-time data use cases for AI, DevOps, and IoT. It offers both an open-source version and a cloud-based version.

  • Headquarters San Francisco, United States
  • Founders Peter Marton, Andras Toth
  • Stage Acquired
  • Sectors
    Financial Services
  • Email
    β€’β€’β€’β€’β€’β€’β€’β€’
  • Website openmeter.io
  • Social LinkedIn X
  • Acquired by Kong (Sep 2025)
  • Legal Name Tailfin Cloud Inc.
Key Metrics
  • Total Equity Funding
    $3.13M (USD)

    in 2 rounds

  • Latest Funding Round
    $3M (USD), Seed

    Mar 2024

  • Investors
    Kong

    & 3 more

  • Acquired by
    Kong

    (Sep 2025)

Products & Services of OpenMeter

OpenMeter offers a comprehensive portfolio of products and services, including OpenMeter Platform, API & SDKs, and Collectors.

OpenMeter Platform
Billing Software

Real-time tool for usage metering and billing in software

API & SDKs
Development Tools

Integrations for programming languages like Node.js and Python

Collectors
Data Integration

Tools to meter AI tools and cloud infrastructure events

Funding Insights of OpenMeter

OpenMeter has successfully raised a total of $3.13M across 2 strategic funding rounds. The most recent funding activity was a Seed round of $3 million completed in March 2024. This substantial capital infusion reflects strong investor confidence in the company's business model, growth potential, and market opportunities. The funding enables strategic expansion, product development, market penetration, and operational scaling to drive long-term value creation and competitive advantage.

  • Total Funding $3.13M
  • Total Rounds 2
  • Last Round Seed β€” $3M
  • First Round $125,000

    (Jun 2023)

  • Investors Count 3

All 2 funding rounds of OpenMeter with amounts and investors; the two latest post-money valuations are shown, the rest are part of the premium plan.

DateAmountTransaction NameValuationLead InvestorsInvestors
Mar 2024$3MSeed–Haystack
Jun 2023$125,000Seed–Y Combinator
–
Valuation history

4 investors in total: 4 institutional.

Investors in OpenMeter

OpenMeter has secured backing from 4 investors, including venture fund investors. Prominent investors backing the company include Kong, Y Combinator and Haystack.

All
Venture Fund
InvestorDescriptionFounded YearDomainLocation
Early-stage startups are accelerated via funding and educational programs.
ycombinator.comMountain View, United States
Multiple-stage venture capital investments are managed by Haystack.
haystack.vcMenlo Park, United States
Kong Inc. is recognized for providing a unified API platform.
2009konghq.comSan Francisco, United States
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Investor details for OpenMeter

The complete investor list, round-by-round participation and investor portfolios require an active premium plan.

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  • Round participation
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People of OpenMeter

4 people are tracked at OpenMeter (4 in leadership).

NameRoleGroup
Peter Marton
Co-Founder & CEOLeadership
Andras Toth
Co-FounderLeadership
András Hajgató
Head Of Product DesignLeadership
András Tóth
Cto, FounderLeadership
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Timeline of OpenMeter

4 dated milestones of OpenMeter across 2 years, from founding to its latest funding, stage changes and deals.

  1. Founded OpenMeter is founded.
  2. Funding First funding round of $125K.
  3. Funding Latest funding round, Seed, of $3.0M.
  4. Exit Acquired by Kong.

Web traffic of OpenMeter

The website of OpenMeter (openmeter.io) receives about 20.3K visits a month.

  • Monthly visits
    20.3K

    ▲ 2.4% vs previous month

Similar websites

Websites whose visitors overlap most with OpenMeter. Affinity shows how closely the audiences match.

WebsiteDomainAudience affinityMonthly visitsGlobal rankProfile
amberflo.io
100%
2.5K#6,714,752View details
cerbos.dev
89%
73.8K#526,371View details

Top companies in Payments & Remittance Platforms

3 companies that operate in the same segment as OpenMeter (Payments & Remittance Platforms) in United States, ranked by their profile score on The Company Check.

CompanyDescriptionFoundedLocationTotal fundingRevenueEmployees
Payment processing and card issuance solutions are provided for businesses.
2009San Francisco, California, United StatesUSD 9.81 B16,622
Cloud-based accounts payable and receivable software for businesses
2006Palo Alto, California, United StatesUSD 325.6 MUSD 1.65 B3,108
Spend management and accounts payable solutions are delivered to businesses.
2019New York, New York, United StatesUSD 5.07 B6,209
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Related news about Openmeter

OpenMeter Raises $3M in Seed Funding
Finsmes β€’ 2 years ago
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Complete news archive for OpenMeter

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Frequently Asked Questions about OpenMeter

OpenMeter was founded in 2023.

OpenMeter is headquartered in San Francisco, United States. It is registered at San Francisco, California, United States.

Peter Marton is the CEO of OpenMeter, as recorded in our data. They have also founded this company.

OpenMeter is a funded company, having raised a total of $3.13M across 2 funding rounds to date. The company's 1st funding round was a Seed of $125K, raised on Jun 2023.

Open-source usage metering platform for AI, DevOps, and billing. It enables scalable usage-based billing, cloud cost management, and real-time data use cases for AI, DevOps, and IoT. It offers both an open-source version and a cloud-based version.

OpenMeter offers OpenMeter Platform, API & SDKs, and Collectors.

OpenMeter has 4 investors. Key investors include Kong, Y Combinator, Haystack, and Sunflower Capital.

OpenMeter operates through Tailfin Cloud Inc..

Yes. OpenMeter was acquired by Kong in September 2025.

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