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Best API Catalog Tools in 2026

  1. 1

    Backstage

    Free plan APILinuxMac+2

    Backstage brings a software catalog, documentation, templates, search, and integrations into a customizable developer portal.

    7.6 Free plan Visit site
  2. 2

    Port

    Free plan APIExtensionWeb

    Port brings cataloging, workflows, controls, and AI agents into an engineering platform, with a free tier for smaller teams.

    7.1 Free plan · paid from $30/user/mo (annual) Visit site
  3. 3

    Postman

    by Postman
    Free plan ExtensionLinuxMac+2

    Postman combines API creation, testing, documentation, and monitoring in one platform, with a free plan and paid options. Check plan availability and the annual billing terms before choosing a tier.

    7.1 Free plan · paid from $9/mo (annual) Visit site
  4. 4

    API Portal

    Free trial APILinuxMac+3

    API Portal combines API cataloging, documentation, automation, versioning, and access controls in one platform.

    6.6 Pricing on request · 14-day trial Visit site
  5. 5

    Axway Amplify Engage

    Paid APISelf-hostedWeb
    5.9 Pricing on request Visit site
  6. 6

    Cortex

    Paid APIWeb

    Cortex combines engineering context, scorecards, intelligence, and workflow tools for teams coordinating engineering operations.

    5.6 Pricing on request Visit site
  7. 7

    OpsLevel

    Paid APISelf-hostedWeb

    OpsLevel combines a software catalog, maturity checks and self-service workflows for engineering organizations.

    5.5 Pricing on request Visit site
  8. 8

    Kong Konnect

    Paid LinuxMacWeb+1

    Kong Konnect brings gateway management together with API lifecycle, catalog and analytics capabilities.

    5.2 From $25/mo · 30-day trial Visit site
  9. 9

    Gravitee Developer Portal

    Paid Web
    4.8 From $2,500/mo Visit site
  10. 10

    MuleSoft Anypoint Exchange

    Paid Web
    4.5 From $2,000/mo (annual) · 30-day trial Visit site
  11. 11

    Salt Security API Inventory

    Paid Web
    4.1 Pricing on request Visit site
  12. 12

    WSO2 API Portal & MCP Hub

    Paid Web
    4.1 30-day trial Visit site
  13. 13

    StackSpot API Catalog

    Paid Web
    3.9 Pricing on request Visit site
  14. 14

    Swagger Catalog

    Paid Web
    3.9 Pricing on request Visit site

#1Places #1, #2, #3, #4, #5 on this list can be bought by the makers of the software on it. See the price

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