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.
Performance Score
A+
Content/Output Quality
Highly Relevant, Contextual
Interface
API-First, Developer-Centric
AI Technology
- Vector Embeddings
- Retrieval-Augmented Generation
- NLP
- Metadata Parsing
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.
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
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
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
