Platforms where integrations authenticate with API keys or tokens, common for single-account, server-to-server use.
9 marketplaces in this directory match this tag.
API-key auth is the pragmatic choice for single-account and server-to-server integrations: a long-lived secret identifies your app to one workspace, with no user-consent handshake. It is fast to build and common for internal tools, data pipelines, and simpler connectors.
The trade-off is that keys don’t scope per user and are awkward to distribute publicly, so most marketplaces require OAuth for listed multi-tenant apps and keep API keys for private or backend use. Treat keys as secrets — rotate them, scope them, and never ship them in client code.
Amazon Web Services, Inc.
Marketplace for deployable SaaS, AMIs, containers, and data products that run on or alongside AWS.
Formagrid, Inc. (Airtable)
React-based embedded extensions that add visualizations, tools, and integrations inside Airtable bases, published through a reviewed CLI submission.
DigitalOcean Holdings, Inc.
DigitalOcean's marketplace of 1-Click Droplet and Kubernetes app images plus SaaS add-ons, deployable and billed through DigitalOcean's cloud.
Freshworks Inc.
Marketplace for apps that extend Freshdesk, Freshservice, and other Freshworks customer-service products.
Adobe Inc.
Extension marketplace for Adobe Commerce (Magento) storefronts, spanning self-hosted and cloud deployments.
Odoo S.A.
Large module marketplace for the open-source Odoo ERP/CRM suite, publishing free and paid apps, themes, and connectors per Odoo version.
PrestaShop SA
The official marketplace for the self-hosted open-source PrestaShop platform, selling PHP modules and themes that install directly into merchants' stores.
Atlassian Corporation
Iframe-based board and card add-ons for Trello, published from the admin panel with API-key plus OAuth tokens and third-party monetization.
Automattic Inc.
WordPress-native extension marketplace for stores built on WooCommerce.