Developer Tools·Standings

Compare API Catalog Tools

API catalog tools organize information about APIs and help teams manage how people find and access them. The choice depends on catalog sources, governance workflows and how the tool fits your deployment needs.

Compare portal access, API specification formats and ownership assignment, along with the platforms a tool supports. The board shows a signal score out of 10 and marks for a public API, open-source code and a free plan.

  • 14 platforms
  • 3 with a free tier
  • Checked 4 Oct 2026
  1. 1
    P
    Postmanpostman.com

    API tools with GraphQL support, available on desktop, web, and as a browser extension.

    6.5 APIOpenFree Free tier · from $9/mo
  2. 2
    B
    Backstagebackstage.io

    An open-source portal framework with a software catalog, project templates, and documentation kept near code.

    6.4 APIOpenFree Free tier
  3. 3
    KK
    Kong Konnectkonghq.com

    A platform for managing API, AI, and event connections, with controls for AI traffic.

    5.9 APIOpenFree From $25/mo
  4. 4
    P
    Portport.io

    A platform for software catalogs, development workflows, scorecards, and governed AI agents.

    5.8 APIOpenFree Free tier · from $30/mo
  5. 5
    AP
    API Portalapi-portal.io

    A platform for API building, management, and interactive documentation, with a catalog and automation tools.

    5.5 APIOpenFree —
  6. 6
    MA
    MuleSoft Anypoint Exchangemulesoft.com

    A catalog for sharing and finding reusable APIs, connectors, templates, examples, and AI agents.

    5.4 APIOpenFree From $2,000/mo
  7. 7
    GD
    Gravitee Developer Portalgravitee.io

    A self-service portal for finding and subscribing to APIs, event streams, and AI agents.

    5.0 APIOpenFree From $2,500/mo
  8. 8
    C
    Cortexcortex.io

    An engineering operations platform that maps services and ownership, connects tools, and tracks readiness standards.

    4.9 APIOpenFree —
  9. 9
    AA
    Axway Amplify Engageaxway.com

    A platform that groups APIs into products, helps teams discover them, and supports marketplace subscriptions.

    4.8 APIOpenFree —
  10. 10
    O
    OpsLevelopslevel.com

    An internal portal with an automatically built software catalog, service insights, and standards checks.

    4.8 APIOpenFree —
  11. 11
    SS
    Salt Security API Inventorysalt.security

    A cloud-based web inventory that automatically catalogs APIs and supports ownership and governance workflows.

    4.1 APIOpenFree —
  12. 12
    SC
    Swagger Catalogswagger.io

    A cloud catalog with manual API entry, governance workflows, and access for portal users and teams.

    4.0 APIOpenFree —
  13. 13
    SA
    StackSpot API Catalogstackspot.com

    A cloud API catalog for OpenAPI and Swagger specifications in YAML or JSON.

    4.0 APIOpenFree —
  14. 14
    WA
    WSO2 API Portal & MCP Hubwso2.com

    A web portal and MCP hub with Git-based catalogs, governance, and several API specification formats.

    4.0 APIOpenFree —

Places #1, #2, #3, #4, #5 on this board are open to sponsors. Take #1 · Other ways to advertise

How to choose

What sources does the catalog need to cover?

Choose a tool whose catalog sources match where your API information is kept. Confirm how it handles the sources your team needs before comparing other features.

How should the tool handle ownership and governance?

Look for ownership assignment and governance workflows that fit how your team manages APIs. These details can help you assess whether the catalog supports your existing responsibilities and review steps.

Who needs access to the API portal?

Compare portal access options with the people who need to find or use API information. Check whether the access model suits your intended audience.

Where does the tool need to run?

Check the deployment options and supported platforms against your setup. The board covers web, API, self-hosted, macOS, Linux and Windows availability.

What should I check about price and a free plan?

Compare the stated starting price, free-plan availability and any trial offer. A price marked as available on request needs a quote before you can compare its cost with a published starting price.

Questions

What does an API catalog tool do?

It organizes information about APIs and supports how people find and access that information.

How do I choose an API catalog tool?

Compare catalog sources, ownership assignment, governance workflows, portal access and deployment options with your team's needs.

Which API catalog tools have a free plan?

Check the free-plan mark on the board. A free trial and a free plan are different offers.

Can I self-host an API catalog tool?

The board includes self-hosted availability as a platform detail. Check an individual tool's listing to see whether it supports that option.

What does pricing on request mean?

The maker does not publish a starting price in the listed pricing note, so you need to request pricing to compare costs.

Some top positions on this board can be paid placements, standing where they were sold. The facts on each platform are not for sale. How we rank · Disclosure