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Best API Monetization Software in 2026

Boomi leads this list of 41 (9.2/10). Flexprice is next (9.1/10, free plan), and Lago is the next highest-placed option with a free plan (8.5/10). API monetization software helps you define what access costs, measure how APIs are used, and manage billing. Compared on API plan builders, developer portals, usage metering, overage billing, and subscription billing, the entries cover several parts of packaging and charging for API access.

  1. 01 Boomi

    Boomi describes Professional as suited to small data teams and Enterprise as suited to organizations with extensive data and security requirements.

    From $99/mo Free trial Web · Windows · Linux · API
    9.2 Visit Specs
  2. 02 Flexprice
    From $199/mo Free plan Open source Web · Linux · API · Self-hosted
    9.1 Visit Specs
  3. 03 DigitalAPI

    DigitalAPI is aimed at enterprises managing API ecosystems, including those in banking, insurance, retail, manufacturing, and media.

    From $2,500/mo Free trial Web · API · Self-hosted
    8.9 Visit Specs
  4. 04 Lago

    Lago is aimed at engineering, product, finance, and operations teams, including fast-growing AI companies and global enterprises.

    Free plan Open source Web · API · Self-hosted
    8.5 Visit Specs
  5. 05 Zuplo

    Zuplo suits teams managing APIs that need gateway security, documentation, a developer portal, or AI and MCP gateway capabilities.

    From $25/mo Free plan Web · Linux · API · Self-hosted
    8.5 Visit Specs
  6. 06 Automic Continuous Delivery Automation
    Free trial Web · Linux · API · Self-hosted
    8.4 Visit Specs
  7. 07 Kong Konnect
    From $25/mo Free trial Web · Windows · macOS · Linux
    8.3 Visit Specs
  8. 08 API7 Enterprise
    Free trial Web · Linux · API · Self-hosted
    8.2 Visit Specs
  9. 09 Fiorano API Management
    Free trial Web · API · Self-hosted
    8.1 Visit Specs
  10. 10 IBM API Connect
    From $83/mo Free trial Web · API · Self-hosted
    8.1 Visit Specs
  11. 11 Orb
    Web · API
    8.1 Visit Specs
  12. 12 Revenium

    It suits engineering, finance, FinOps and product teams managing or pricing AI usage.

    Free plan Web · API
    8.1 Visit Specs
  13. 13 Younium
    From 500 SEK/mo Web · iOS · Android · API
    8.1 Visit Specs
  14. 14 Maxio
    From $599/mo Web · API
    8.0 Visit Specs
  15. 15 Gotransverse
    Web · API
    7.9 Visit Specs
  16. 16 Azure API Management
    Free trial Web · API · Self-hosted
    7.8 Visit Specs
  17. 17 Stigg

    Stigg is aimed at engineering teams managing usage, entitlements, and spending controls for AI products.

    From $399/mo Free plan Web · API · Self-hosted
    7.8 Visit Specs
  18. 18 Apiable

    Apiable suits API teams that need branded partner onboarding, product plans, usage limits, and monetization around an existing gateway.

    Web · API · Self-hosted
    7.7 Visit Specs
  19. 19 Moesif

    Moesif suits API-driven organizations and product-led teams that want to understand customer and partner API use.

    Free plan Web · API · Self-hosted
    7.7 Visit Specs
  20. 20 SAP API Management
    From $5,339/mo Free trial Web · API · Self-hosted
    7.7 Visit Specs
  21. 21 Sentinel EMS

    It suits software and hardware vendors that need to manage entitlements, automate licensing operations, or support multiple license technologies.

    Free trial Web · Windows · macOS · Linux
    7.7 Visit Specs
  22. 22 APIwiz
    Web
    7.5 Visit Specs
  23. 23 Aria Billing

    Aria Billing is intended for established service businesses and enterprises with complex subscription or usage models.

    Web · API
    7.5 Visit Specs
  24. 24 Axway Amplify API Management
    Web · API · Self-hosted
    7.5 Visit Specs
  25. 25 Layer7 API Management

    Layer7 suits organizations managing APIs across governed portals and varied deployment models.

    Web · iOS · Android · API
    7.4 Visit Specs
How this list is ordered. Specifiction scores each tool on how fully its maker documents it, whether its prices are published, where the research puts it, the platforms it runs on and whether it can be tried for free (how we rank). Makers can also buy a numbered place (how Specifiction is paid for).

Supported billing models, payment gateway support, free plan availability, and paid-from pricing give you more to weigh. Kong Gateway, Sentinel EMS, and Gravitee API Gateway are among the options, alongside Zuplo and Moesif. Compare the plan structures and metering capabilities with your intended pricing approach, and check whether the listed billing models and gateway support suit how you expect to collect payment.

Compare Boomi and Flexprice Get a place on this list

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