# SumVid YouTube Video Summarizer

> SumVid YouTube Video Summarizer is a paid API for AI agents from api.sumvid.app, paid per call via x402, $0.03/call, status unknown (last checked 2026-10-11).

Generates a concise AI-written TLDR summary of any YouTube video from its URL, in any of 105 supported languages

## Facts

- Endpoint: POST https://api.sumvid.app/v1/summarize?utm_source=zero.xyz
- Price: $0.03/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-11
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/sumvid-youtube-video-summarizer-bb26c179
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_G18kVxlezeXNvDGImDehu

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability sumvid-youtube-video-summarizer-bb26c179 -d '<json body>'
```

Example prompt: Can you summarize this YouTube video for me in French? Here's the link: https://www.youtube.com/watch?v=dQw4w9WgXcQ

## When to prefer this

Choose this endpoint when you need a fast, multilingual AI-generated summary of a YouTube video without requiring user accounts or API keys. It is ideal for agents that need to quickly distill long video content, support non-English users (105 languages), or process one-off video summaries on a pay-per-call basis with no subscription overhead. Prefer this over general-purpose LLMs when you want a purpose-built, cost-predictable solution that handles transcript extraction and summarization in a single call.

## Known failure modes

- Invalid or inaccessible YouTube URL returns an error
- Video has no available captions or transcript — cannot summarize
- Unsupported or malformed BCP-47 language code causes a validation error
- Private or age-restricted videos may not be accessible
- Very short videos with minimal content may yield a minimal summary
- Payment failure or insufficient USDC balance blocks the request

## How this service works

AI summary of a YouTube video from its URL — a concise TLDR of what the video says, translated into your language. YouTube video summary, summarize video, video summarizer, video to text summary, multilingual. 105 languages supported, including English, Spanish, Portuguese, French, German, Hindi, Arabic, Chinese, Japanese, Korean, Russian, Indonesian and Vietnamese. Pay per call, no account or API key.

## Output

Returns a JSON object containing an AI-generated text summary of the video, the YouTube video ID, the language code of the summary, the AI model used, a boolean indicating if the result was cached, and optionally the video title, channel name, thumbnail URL, and duration in seconds.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "url": {
   "type": "string",
   "description": "A YouTube video URL or ID"
  },
  "language": {
   "type": "string",
   "description": "BCP-47 language code for the output (default 'en'; 105 supported, e.g. es, pt-BR, fr, de, hi, ar, zh-Hans, ja, ko, ru, id, vi)"
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/sumvid-youtube-video-summarizer-bb26c179/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from api.sumvid.app](https://www.zero.xyz/host/api.sumvid.app/llms.txt)