# HookFindr Video Transcription

> HookFindr Video Transcription is a paid API for AI agents from api.hookfindr.com, paid per call via x402, $0.05/call, live (last probed 2026-10-12, last successful call 2026-10-12).

Agents call it through Zero, which pays per call: no API key and no wallet of your own. New accounts start with $5.

Transcribes video URLs (TikTok, YouTube, Instagram, X, Twitch) to text with word-level timestamps, using native captions or Whisper fallback, with song lyric support via LRCLIB

## Facts

- Endpoint: POST https://api.hookfindr.com/api/x402/transcribe?utm_source=zero.xyz
- Price: $0.05/call
- Payment: x402
- Status: healthy
- Last checked: 2026-10-12
- Last successful call: 2026-10-12
- Success rate: 67% of calls made through Zero
- Rating: 4.7 / 5 from 1 review
- Activations on Zero: 12
- Tags: x402
- Canonical page: https://www.zero.xyz/c/hookfindr-video-transcription-7eabe575
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_4K3dzhGOZ47KXNRyyYtTL

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 hookfindr-video-transcription-7eabe575 -d '<json body>'
```

Example prompt: Can you transcribe this TikTok video for me and give me timestamps for each word? Here's the URL: https://www.tiktok.com/@example/video/123456789

## When to prefer this

Use this endpoint when you need word-level timestamped transcripts from social media video URLs (TikTok, YouTube, Instagram, X, Twitch). Prefer it over generic ASR services when you need fast turnaround on short-form content with automatic fallback to Whisper and built-in music lyric detection. Ideal for content analysis, subtitle generation, or extracting quotes from viral videos.

## Known failure modes

- Private or geo-restricted video URL — cannot download or access content
- Unsupported platform not covered by yt-dlp — returns error
- Video contains no audio or only background music and no lyrics match found
- Network timeout on long videos exceeding processing limits
- Invalid or malformed URL — returns validation error
- Payment not processed — x402 payment required before response

## How this service works

Transcribe video to text with word timestamps — TikTok, YouTube, Instagram, X, Twitch. Uses native platform captions when available (~2s) and falls back to Whisper-large-v3-turbo on extracted audio (~30s). When the audio is a known song, returns LRCLIB lyrics + synced timestamps instead of garbled noise.

## Output

Returns a text transcript of the video's spoken content with word-level timestamps. If native platform captions are available, delivers results in ~2 seconds; otherwise falls back to Whisper-large-v3-turbo on extracted audio in ~30 seconds. If the audio is a recognized song, returns LRCLIB synced lyrics with timestamps instead of a raw speech transcript.

## Example request

```json
{
 "input": {
  "type": "http",
  "method": "POST",
  "queryParams": {
   "url": "https://www.youtube.com/shorts/dQw4w9WgXcQ"
  }
 }
}
```

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "POST"
     ],
     "type": "string"
    },
    "queryParams": {
     "type": "object",
     "required": [
      "url"
     ],
     "properties": {
      "url": {
       "type": "string",
       "description": "Public URL of a short-form video. Supports TikTok, YouTube, YouTube Shorts, Instagram Reels, Twitter/X, Twitch clips, Facebook, and ~1000 other platforms via yt-dlp."
      }
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "object",
 "required": [
  "text",
  "tier",
  "words",
  "cached",
  "source",
  "language",
  "remaining",
  "word_count",
  "transcript_source"
 ],
 "properties": {
  "text": {
   "type": "string"
  },
  "tier": {
   "type": "string"
  },
  "words": {
   "type": "array",
   "items": {
    "type": "object",
    "required": [
     "end",
     "word",
     "start"
    ],
    "properties": {
     "end": {
      "type": "number"
     },
     "word": {
      "type": "string"
     },
     "start": {
      "type": "number"
     }
    }
   }
  },
  "cached": {
   "type": "boolean"
  },
  "source": {
   "type": "string"
  },
  "language": {
   "type": "string"
  },
  "remaining": {
   "type": "number"
  },
  "word_count": {
   "type": "number"
  },
  "transcript_source": {
   "type": "string"
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/hookfindr-video-transcription-7eabe575/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from api.hookfindr.com](https://www.zero.xyz/host/api.hookfindr.com/llms.txt)