Linq is a developer-first API platform that simplifies the process of building Retrieval-Augmented Generation (RAG) pipelines for AI applications. It offers a fast, flexible way to index, embed, and query unstructured content like PDFs, Notion pages, websites, and databases—all through a single unified API.
Designed for speed and scalability, Linq handles vector embeddings, document chunking, and metadata management under the hood. Its modular approach means you can plug Linq into your favorite vector store or LLM setup without wrestling with infrastructure. If you’re building context-aware AI products, Linq gives you a production-ready backend in minutes.
| Linq API Review Summary | |
| Performance Score | A+ |
| Content/Output Quality | Highly Relevant, Contextual |
| Interface | API-First, Developer-Centric |
| AI Technology |
|
| Purpose of Tool | Build fast, scalable, context-rich RAG pipelines for AI products |
| Compatibility | REST API; integrates with Pinecone, OpenAI, Notion, PostgreSQL, etc. |
| Pricing | Free + Paid plans starting from $19/month |
Who is Best for Using Linq?
- AI Engineers: Use Linq to structure retrieval workflows, add real-time context, and supercharge LLMs with high-quality data.
- Startup Founders: Rely on Linq to launch RAG-powered products without spending weeks on backend setup and pipeline engineering.
- Data Teams: Integrate Linq to manage embeddings and build internal tools that combine semantic search with custom knowledge bases.
- SaaS Builders: Embed Linq’s API to create smart search, chatbots, or documentation layers directly into their applications.
Linq Key Features
| Unified RAG Pipeline API | PDF & Notion Ingestion | Automatic Chunking & Metadata |
| OpenAI & Pinecone Integration | Native Postgres & Supabase Sync | Vector Embedding Management |
| Real-Time Indexing & Search | Web Page Crawling Support | JSON & Markdown File Support |
| Scalable API Rate Limits |
Is Linq Free?
Yes, Linq offers a free plan for developers to get started. It includes ingestion, vector search, and core API features. Paid plans start at $19/month with higher API limits, advanced integrations, and enhanced data sync capabilities.
Linq Pricing Plans
- Starter Plan – Free: 100 documents, core API access, Notion and website ingestion, PDF file support, OpenAI embeddings, community support.
- Pro Plan – $19/month: 1,000 documents, priority API throughput, Pinecone integration, file sync (Notion, Markdown, HTML), Slack & email support.
- Scale Plan – Custom Pricing: Custom document limits, enhanced sync (PostgreSQL, Supabase), premium support, SLA and uptime guarantees, dedicated vector infrastructure.
Linq Pros & Cons
Pros
- Simple, developer-friendly RAG pipeline API
- Integrates seamlessly with modern AI stacks
- Real-time updates and fast ingestion
- Scales smoothly from prototype to production
- No-code dashboard for document tracking
Cons
- Lacks a GUI for non-technical users
- File size limitations on free plan
- Advanced features locked behind Pro tier
- Custom sync requires setup via CLI
- No built-in analytics or prompt testing
FAQs
Can I use Linq without knowing how to code?
Linq is designed for developers, so technical knowledge is required. There’s no GUI for non-coders yet.
Does Linq support custom vector databases?
Yes, Linq integrates with popular vector databases like Pinecone, and supports embeddings for various use cases.
What types of files can I ingest into Linq?
You can ingest PDFs, Notion pages, HTML, Markdown, and structured JSON. More file types are being added regularly.
