What is LangSearch?
LangSearch offers two free APIs—Web Search API and Rerank API—designed to provide high-quality, accurate search results and improve search accuracy for LLM applications. These tools are essential for AI applications such as chatbots and agents, ensuring access to real-time, reliable information without the high costs associated with other APIs. LangSearch is committed to making these tools accessible to individuals and small teams as they work towards building AGI together.
Key Features:
🌐 Free Web Search API
Access billions of web documents, including news, images, and videos. Utilize hybrid search to combine keywords and vectors for better accuracy and get long-text summaries with markdown support.📊 Free Semantic Rerank API
Enhance search accuracy with semantic reranking. Easily integrate this feature into existing systems with minimal changes to infrastructure.🔧 Easy Integration
Seamlessly integrate the LangSearch APIs into your applications using LLM tools and AI agent plugins. Flexible API calls support custom filtering conditions.🆓 Absolutely Free
No credit card required. Free access for individuals and small teams with no hidden costs or subscriptions.
Use Cases:
AI Chatbot Enhancement
A small development team is working on an AI chatbot that requires up-to-date, accurate information from the web. By integrating the LangSearch Web Search API, they can ensure their chatbot provides reliable, context-rich responses without worrying about high API costs.Academic Research
A researcher needs to gather and summarize data from various online sources quickly. Using the LangSearch Web Search API, they access comprehensive search results and long-text summaries, streamlining their research process and improving efficiency.Content Curation
A content creator wants to curate articles and news on specific topics. With the LangSearch Rerank API, they can refine search results to prioritize the most relevant and recent content, ensuring their audience receives the best possible information.
Conclusion:
LangSearch's free Web Search and Rerank APIs offer an invaluable resource for individuals and small teams developing AI applications. By providing high-quality, accurate context and enhancing search accuracy, these tools help developers create robust, reliable applications without the burden of excessive costs. Join LangSearch in their mission to build AGI by leveraging these powerful, free resources.
FAQs:
What is the LangSearch Web Search API?
The LangSearch Web Search API is a free tool that allows access to billions of web documents, providing enhanced search results with hybrid keyword and vector search capabilities.How does the Semantic Rerank API improve search results?
The Semantic Rerank API improves search results by applying semantic reranking, which boosts the accuracy of search results with minimal infrastructure changes.Is there a cost associated with using LangSearch APIs?
No, the LangSearch APIs are free for individuals and small teams, with no credit card required and no hidden costs.Can I integrate the LangSearch APIs with other LLM tools and AI agent plugins?
Yes, the LangSearch APIs are designed for easy integration with various LLM tools and AI agent plugins, supporting custom applications and workflows.Why is access to real-time, accurate information important for AI applications?
Access to real-time, accurate information is crucial for AI applications to provide reliable, context-rich responses, reducing the risk of errors and improving overall functionality.
More information on LangSearch
Launched
2024-10
Pricing Model
Free
Starting Price
Global Rank
Follow
Month Visit
<5k
Tech used
Next.js,Gzip,Webpack
Top 5 Countries
100%
United States
Traffic Sources
6.83%
0.8%
0.03%
4.8%
6.83%
80.7%
social
paidReferrals
mail
referrals
search
direct
Source: Similarweb (Jun 2, 2025)
LangSearch was manually vetted by our editorial team and was first featured on 2024-12-20.
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