The video data API for AI startups
Building RAG pipelines, fine-tuning datasets, or social Q&A agents? Captapi turns public social, video, commerce, ad library, and creator data into clean structured JSON your models can use — transcripts, AI summaries, comments, profiles, search results and metadata, all behind one REST API.
What you can build
RAG knowledge bases
Pull transcripts at scale and embed them into your vector store for grounded answers.
Video Q&A agents
Let users ask questions about any video — fetch the transcript on demand and answer.
Fine-tuning datasets
Collect clean, labelled transcript + metadata pairs across many public platforms.
Content moderation
Summarize and classify video content before it reaches your users.
APIs you'll use
Why AI Startups choose Captapi
- One REST API for 29 platforms and 179 endpoints
- Clean JSON — no scraping, no OAuth, no quotas
- Transcripts, AI summaries, comments, search, ads, commerce & engagement
- 100 free credits to start, no credit card
Frequently asked questions
Can I use Captapi to build a RAG pipeline from videos?+
Yes. Call the transcript endpoint for supported video URLs, get clean JSON text back, then chunk and embed it into your vector database.
Do you return clean text suitable for LLMs?+
Yes — responses are structured JSON with plain-text transcripts and AI summaries, so you can feed them directly into embeddings or prompts without scraping or cleanup.
Other use cases
Build it with Captapi
Get your API key and 100 free credits in 60 seconds. No credit card.