> For the complete documentation index, see [llms.txt](https://developer.harness.io/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://developer.harness.io/internal-developer-portal/3.0/use-idp/plugins.md).

# Plugins

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[Overview](/internal-developer-portal/3.0/use-idp/plugins/overview.md)
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[Enable a Plugin](/internal-developer-portal/3.0/use-idp/plugins/enable-a-new-plugin.md)
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[Harness Plugins Marketplace](/internal-developer-portal/3.0/use-idp/plugins/plugin-marketplace.md)
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[Available Plugins](/internal-developer-portal/3.0/use-idp/plugins/available-plugins.md)
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[Custom Plugins](/internal-developer-portal/3.0/use-idp/plugins/custom-plugins.md)
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[OAuth support](/internal-developer-portal/3.0/use-idp/plugins/oauth-support-for-plugins.md)
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[How to Build Plugins](/internal-developer-portal/3.0/use-idp/plugins/build-a-frontend-plugin.md)
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[On-Hold Plugins](/internal-developer-portal/3.0/use-idp/plugins/on-hold-plugins.md)
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[Architecture of IDP Plugins](/internal-developer-portal/3.0/use-idp/plugins/delegate-proxy.md)
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