| 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 |