# x402vid YouTube Title Optimizer

> x402vid YouTube Title Optimizer is a paid API for AI agents from x402vid.com, paid per call via x402, $0.002/call, status unknown (last checked 2026-10-20).

Optimizes a YouTube video title for SEO and click-through rate using AI, optionally targeting a specific content niche.

## Facts

- Endpoint: POST https://x402vid.com/tools/title_optimizer?utm_source=zero.xyz
- Price: $0.002/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-20
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/x402vid-youtube-title-optimizer-07dba737
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_uaeQU0UInT4ljhIDLekzo

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 x402vid-youtube-title-optimizer-07dba737 -d '<json body>'
```

Example prompt: Can you optimize my YouTube title 'How I Lost 20 Pounds in 3 Months' for the fitness and weight loss niche to maximize clicks and search visibility?

## When to prefer this

Choose this endpoint when you need AI-powered YouTube-specific title optimization with optional niche targeting, especially inside an agent pipeline that requires pay-per-call micropayments (USDC via x402) rather than a subscription. Prefer this over generic SEO tools when the output needs to be tuned for YouTube's search and recommendation algorithm specifically.

## Known failure modes

- Missing required 'title' field returns a validation error
- Very short or empty titles may produce low-quality or generic suggestions
- Niche field mismatch with title content may result in poorly targeted keyword recommendations
- Payment failure in USDC results in a 402 response and no report returned
- Rate limiting if too many calls are made in rapid succession

## How this service works

x402vid — endpoint discovery for YouTube intelligence: pay-per-call micropayment API catalog via x402 on Base. Muse Spark 1.3 video intelligence, API catalog with 20 paid + free endpoints, pay per call USDC from $0.001. Free discovery: GET /api/v1/catalog, GET /api/v1/models, GET /api/v1/trending/top, video_preview. No subscriptions.

## Output

Returns a title_report object containing analysis and optimization recommendations for the submitted title (likely including suggested rewrites, SEO scoring, keyword insights, and click-through improvement notes), plus the original_title string for reference.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "required": [
  "title"
 ],
 "properties": {
  "niche": {
   "type": "string",
   "description": "Optional niche for keyword targeting"
  },
  "title": {
   "type": "string",
   "description": "Working title to optimize"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "title_report": {
   "type": "object"
  },
  "original_title": {
   "type": "string"
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/x402vid-youtube-title-optimizer-07dba737/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from x402vid.com](https://www.zero.xyz/host/x402vid.com/llms.txt)