> ## Documentation Index
> Fetch the complete documentation index at: https://docs.autosearch.dev/llms.txt
> Use this file to discover all available pages before exploring further.

# Channels

> All 40 search channels — tiers, languages, and requirements

AutoSearch organizes channels into three availability tiers. Run `autosearch doctor` to see live status.

## Tier 0 — Always-on (28 channels)

No configuration needed. Available immediately after install.

| Channel          | Languages | Description                                                    | Yield       |
| ---------------- | --------- | -------------------------------------------------------------- | ----------- |
| arxiv            | en        | Academic preprints in CS/ML/physics                            | medium-high |
| bilibili         | zh, mixed | Chinese tech videos and tutorials                              | medium      |
| crossref         | en        | Cross-publisher scholarly search via DOI registry              | medium      |
| dblp             | en        | Computer science bibliography — papers, proceedings            | medium      |
| ddgs             | en, mixed | DuckDuckGo web search, no auth required                        | medium      |
| devto            | en, mixed | Developer blog articles tagged by technology                   | medium      |
| dockerhub        | en        | Docker image and container registry search                     | medium      |
| github           | en        | Code, issues, and repository discovery                         | high        |
| google\_news     | en, mixed | Current news headlines via Google News RSS                     | high        |
| hackernews       | en        | Developer discussion, tooling opinions, early product signals  | medium-high |
| huggingface\_hub | en, mixed | Open ML models on Hugging Face Hub                             | high        |
| infoq\_cn        | zh, mixed | Chinese engineering articles from InfoQ 中文                     | medium      |
| kr36             | zh, mixed | Chinese tech business news and startup funding from 36kr       | medium      |
| linkedin         | en, mixed | LinkedIn public company profiles and articles via Jina Reader  | low         |
| discourse\_forum | zh, mixed | Linux DO and Discourse-based public forum discussions          | medium      |
| openalex         | en, mixed | Scholarly works via OpenAlex open-access API                   | high        |
| package\_search  | en, mixed | PyPI and npm package discovery                                 | medium      |
| papers           | en, mixed | Multi-source academic search (arxiv + pubmed + biorxiv + more) | high        |
| podcast\_cn      | zh, mixed | Chinese podcasts via Apple iTunes API                          | low         |
| pubmed           | en        | Biomedical and life-science literature from PubMed             | medium-high |
| reddit           | en, mixed | Community discussions and user experience reports              | medium      |
| sec\_edgar       | en        | US public company filings (10-K, 10-Q, 8-K)                    | medium      |
| sogou\_weixin    | zh, mixed | WeChat Official Account articles via Sogou                     | high        |
| stackoverflow    | en, mixed | Programming Q\&A with community-voted answers                  | high        |
| tieba            | zh        | Chinese community forum discussions on Baidu Tieba             | medium      |
| v2ex             | zh, mixed | Chinese developer community — programming, tech, career        | medium      |
| wikidata         | en, mixed | Structured entity data from Wikidata knowledge graph           | medium      |
| wikipedia        | en, mixed | Encyclopedia articles via Wikipedia Action API                 | high        |

## Tier 1 — Env/API gated (10 channels)

Requires an API key, self-hosted URL, or service token.

| Channel          | Languages     | Setup                                                                                           | Yield       |
| ---------------- | ------------- | ----------------------------------------------------------------------------------------------- | ----------- |
| douyin           | zh            | `autosearch configure TIKHUB_API_KEY <key>`                                                     | medium      |
| instagram        | en, mixed     | `autosearch configure TIKHUB_API_KEY <key>`                                                     | medium      |
| kuaishou         | zh, mixed     | `autosearch configure TIKHUB_API_KEY <key>`                                                     | medium      |
| searxng          | en, zh, mixed | `autosearch configure SEARXNG_URL <url>` (self-hosted [SearXNG](https://docs.searxng.org))      | medium      |
| tiktok           | en, mixed     | `autosearch configure TIKHUB_API_KEY <key>`                                                     | medium      |
| twitter          | en, mixed     | `autosearch configure TIKHUB_API_KEY <key>`                                                     | medium      |
| wechat\_channels | zh, mixed     | `autosearch configure TIKHUB_API_KEY <key>`                                                     | medium      |
| weibo            | zh, mixed     | `autosearch configure TIKHUB_API_KEY <key>`                                                     | medium      |
| youtube          | en, zh, mixed | `autosearch configure YOUTUBE_API_KEY <key>` ([get free key](https://console.cloud.google.com)) | medium      |
| zhihu            | zh, mixed     | `autosearch configure TIKHUB_API_KEY <key>`                                                     | medium-high |

## Tier 2 — Login/cookie gated (2 channels)

Requires account cookies or login-backed setup.

| Channel     | Languages | Setup                                                                       | Yield  |
| ----------- | --------- | --------------------------------------------------------------------------- | ------ |
| xiaohongshu | zh, mixed | `autosearch login xhs` or `autosearch configure XHS_A1_COOKIE <cookie>`     | high   |
| xueqiu      | zh, mixed | `autosearch login xueqiu` or `autosearch configure XUEQIU_COOKIES <cookie>` | medium |

## Login-based channels

Some tier-2 channels can be unlocked by logging in with your own account (using browser cookies):

```bash theme={null}
autosearch login xhs        # Xiaohongshu
autosearch login twitter    # Twitter/X
autosearch login bilibili   # Bilibili
autosearch login weibo      # Weibo
autosearch login douyin     # Douyin
autosearch login instagram  # Instagram
autosearch login linkedin   # LinkedIn
```

**Xueqiu** (雪球, A-share/HK stock discussion) also supports setting cookie env directly:

```bash theme={null}
autosearch configure XUEQIU_COOKIES "<cookie-string>"
```

If Chrome auto-extraction fails:

```bash theme={null}
autosearch login xhs --from-string "<cookie-string>"
```