# Reverse Video Search > Find candidate sources of videos by reverse-searching extracted frames. Manual frame extraction runs locally in the browser and is free. Automated image searches require an account session and spend credits. Matches are candidate source pages, not verified original authors. Search coverage depends on external visual indexes. The image API accepts a frame or image, not a video. There is no MCP server or agent API-key issuance flow. ## Agent documentation - [API and agent guide](https://reverse-video-search.com/developers.md): Authentication, inputs, costs, privacy, duplicate handling and safe retries. - [OpenAPI contract](https://reverse-video-search.com/openapi.json): Machine-readable contract for the existing authenticated image search endpoint. ## Public tools and learning - [Extract audio](https://reverse-video-search.com/tools/extract-audio-from-video): Browser-based audio extraction. - [Video to image grid](https://reverse-video-search.com/tools/video-to-image-grid): Compose extracted frames into an image grid. - [Guides](https://reverse-video-search.com/guides): Reverse-search walkthroughs. - [Blog](https://reverse-video-search.com/blog): Articles about video search. ## Optional - [Interactive video search](https://reverse-video-search.com/): Browser-based frame extraction and search. - [Tools](https://reverse-video-search.com/tools): Browser utilities for video frames and audio. - [Privacy](https://reverse-video-search.com/privacy): Data handling policy. - [Terms](https://reverse-video-search.com/terms): Service terms.