---
name: youtube-full
description: "完整的YouTube工具包——转录、搜索、频道、播放列表和元数据。"
homepage: https://transcriptapi.com
user-invocable: true
metadata: {"openclaw":{"emoji":"🎯","requires":{"env":["TRANSCRIPT_API_KEY"],"bins":["node"],"config":["~/.openclaw/openclaw.json"]},"primaryEnv":"TRANSCRIPT_API_KEY"}}
---

# YouTube Full

Complete YouTube toolkit via [TranscriptAPI.com](https://transcriptapi.com). Everything in one skill.

## Setup

If `$TRANSCRIPT_API_KEY` is not set, help the user create an account (100 free credits, no card):

**Step 1 — Register:** Ask user for their email.

```bash
node ./scripts/tapi-auth.js register --email USER_EMAIL
```

→ OTP sent to email. Ask user: _"Check your email for a 6-digit verification code."_

**Step 2 — Verify:** Once user provides the OTP:

```bash
node ./scripts/tapi-auth.js verify --token TOKEN_FROM_STEP_1 --otp CODE
```

> API key saved to `~/.openclaw/openclaw.json`. See **File Writes** below for details. Existing file is backed up before modification.

Manual option: [transcriptapi.com/signup](https://transcriptapi.com/signup) → Dashboard → API Keys.

## File Writes

The verify and save-key commands save the API key to `~/.openclaw/openclaw.json` (sets `skills.entries.transcriptapi.apiKey` and `enabled: true`). **Existing file is backed up to `~/.openclaw/openclaw.json.bak` before modification.**

To use the API key in terminal/CLI outside the agent, add to your shell profile manually:
`export TRANSCRIPT_API_KEY=<your-key>`

## API Reference

Full OpenAPI spec: [transcriptapi.com/openapi.json](https://transcriptapi.com/openapi.json) — consult this for the latest parameters and schemas.

## Transcript — 1 credit

```bash
curl -s "https://transcriptapi.com/api/v2/youtube/transcript\
?video_url=VIDEO_URL&format=text&include_timestamp=true&send_metadata=true" \
  -H "Authorization: Bearer $TRANSCRIPT_API_KEY"
```

| Param               | Required | Default | Values                          |
| ------------------- | -------- | ------- | ------------------------------- |
| `video_url`         | yes      | —       | YouTube URL or 11-char video ID |
| `format`            | no       | `json`  | `json`, `text`                  |
| `include_timestamp` | no       | `true`  | `true`, `false`                 |
| `send_metadata`     | no       | `false` | `true`, `false`                 |

**Response** (`format=json`):

```json
{
  "video_id": "dQw4w9WgXcQ",
  "language": "en",
  "transcript": [{ "text": "...", "start": 18.0, "duration": 3.5 }],
  "metadata": { "title": "...", "author_name": "...", "author_url": "..." }
}
```

## Search — 1 credit

```bash
# Videos
curl -s "https://transcriptapi.com/api/v2/youtube/search?q=QUERY&type=video&limit=20" \
  -H "Authorization: Bearer $TRANSCRIPT_API_KEY"

# Channels
curl -s "https://transcriptapi.com/api/v2/youtube/search?q=QUERY&type=channel&limit=10" \
  -H "Authorization: Bearer $TRANSCRIPT_API_KEY"
```

| Param   | Required | Default | Validation         |
| ------- | -------- | ------- | ------------------ |
| `q`     | yes      | —       | 1-200 chars        |
| `type`  | no       | `video` | `video`, `channel` |
| `limit` | no       | `20`    | 1-50               |

## Channels

All channel endpoints accept `channel` — an `@handle`, channel URL, or `UC...` channel ID. No need to resolve first.

### Resolve handle — FREE

```bash
curl -s "https://transcriptapi.com/api/v2/youtube/channel/resolve?input=@TED" \
  -H "Authorization: Bearer $TRANSCRIPT_API_KEY"
```

Response: `{"channel_id": "UC...", "resolved_from": "@TED"}`

### Latest 15 videos — FREE

```bash
curl -s "https://transcriptapi.com/api/v2/youtube/channel/latest?channel=@TED" \
  -H "Authorization: Bearer $TRANSCRIPT_API_KEY"
```

Returns exact `viewCount` and ISO `published` timestamps.

### All channel videos — 1 credit/page

```bash
# First page (100 videos)
curl -s "https://transcriptapi.com/api/v2/youtube/channel/videos?channel=@NASA" \
  -H "Authorization: Bearer $TRANSCRIPT_API_KEY"

# Next pages
curl -s "https://transcriptapi.com/api/v2/youtube/channel/videos?continuation=TOKEN" \
  -H "Authorization: Bearer $TRANSCRIPT_API_KEY"
```

Provide exactly one of `channel` or `continuation`. Response includes `continuation_token` and `has_more`.

### Search within channel — 1 credit

```bash
curl -s "https://transcriptapi.com/api/v2/youtube/channel/search\
?channel=@TED&q=QUERY&limit=30" \
  -H "Authorization: Bearer $TRANSCRIPT_API_KEY"
```

## Playlists — 1 credit/page

Accepts `playlist` — a YouTube playlist URL or playlist ID.

```bash
# First page
curl -s "https://transcriptapi.com/api/v2/youtube/playlist/videos?playlist=PL_ID" \
  -H "Authorization: Bearer $TRANSCRIPT_API_KEY"

# Next pages
curl -s "https://transcriptapi.com/api/v2/youtube/playlist/videos?continuation=TOKEN" \
  -H "Authorization: Bearer $TRANSCRIPT_API_KEY"
```

Valid ID prefixes: `PL`, `UU`, `LL`, `FL`, `OL`. Response includes `playlist_info`, `results`, `continuation_token`, `has_more`.

## Credit Costs

| Endpoint        | Cost     |
| --------------- | -------- |
| transcript      | 1        |
| search          | 1        |
| channel/resolve | **free** |
| channel/latest  | **free** |
| channel/videos  | 1/page   |
| channel/search  | 1        |
| playlist/videos | 1/page   |

## Validation Rules

| Field      | Rule                                                    |
| ---------- | ------------------------------------------------------- |
| `channel`  | `@handle`, channel URL, or `UC...` ID                   |
| `playlist` | Playlist URL or ID (`PL`/`UU`/`LL`/`FL`/`OL` prefix)   |
| `q`        | 1-200 chars                                             |
| `limit`    | 1-50                                                    |

## Errors

| Code | Meaning          | Action                                |
| ---- | ---------------- | ------------------------------------- |
| 401  | Bad API key      | Check key                             |
| 402  | No credits       | transcriptapi.com/billing             |
| 404  | Not found        | Resource doesn't exist or no captions |
| 408  | Timeout          | Retry once after 2s                   |
| 422  | Validation error | Check param format                    |
| 429  | Rate limited     | Wait, respect Retry-After             |

## Typical Workflows

**Research workflow:** search → pick videos → fetch transcripts

```bash
# 1. Search
curl -s "https://transcriptapi.com/api/v2/youtube/search\
?q=machine+learning+explained&limit=5" \
  -H "Authorization: Bearer $TRANSCRIPT_API_KEY"
# 2. Transcript
curl -s "https://transcriptapi.com/api/v2/youtube/transcript\
?video_url=VIDEO_ID&format=text&include_timestamp=true&send_metadata=true" \
  -H "Authorization: Bearer $TRANSCRIPT_API_KEY"
```

**Channel monitoring:** latest (free) → transcript

```bash
# 1. Latest uploads (free — pass @handle directly)
curl -s "https://transcriptapi.com/api/v2/youtube/channel/latest?channel=@TED" \
  -H "Authorization: Bearer $TRANSCRIPT_API_KEY"
# 2. Transcript of latest
curl -s "https://transcriptapi.com/api/v2/youtube/transcript\
?video_url=VIDEO_ID&format=text&include_timestamp=true&send_metadata=true" \
  -H "Authorization: Bearer $TRANSCRIPT_API_KEY"
```

Free tier: 100 credits, 300 req/min. Starter ($5/mo): 1,000 credits.