Subtitles King

Intro

Subtitles King provides AI-generated subtitles for video content and is presented as a tool for both human users and automated agents. The service offers a hosted MCP server, a REST API for integration, and an open-source self-hostable binary so you can pick a deployment model that fits your workflow. The site states subtitles can be added in minutes and highlights a free tier intended for individual developers and small projects; a Pro plan with higher limits and an SLA is described as coming soon.

Key Features

• AI-generated subtitles for any video, intended to be produced quickly (in minutes).
• Hosted MCP server for an out-of-the-box experience.
• REST API access to integrate subtitle generation into workflows.
• Open-source self-host binary available so teams can run the service locally; self-hosting is presented as providing the full feature set at no cost.
• Free tier described as "$0 forever" and "free for most," with the site stating it can handle real workloads.

Who this is for

• Developers who want API access and a self-host option for integration and automation.
• Automated agents and workflow systems that need programmatic subtitle generation via the REST API or MCP server.
• Human users and small projects that need quick subtitles without an upfront cost; the free tier is positioned for individual developers and small projects.

Note: the site lists deployment and pricing options but does not publish full technical details (exact free-tier quotas, API endpoint formats, or Pro pricing) on the public pages referenced.