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RAG63 of 5723 tools

63 tools filed under RAG by what their own homepage shows, ranked by who uses them among those still maintained.

A tag is one of thirty-odd words from a closed list, chosen by the same reader from the same page as the line — never a keyword the vendor supplied.

Ranked by use

By tag

  • LangChain

    langchain.com

    Builds and deploys agents with observability, evaluation, and monitoring tools.

    Retrieval (RAG)From $39/user/mo

    Widely usedsince 2023

    #96 of 3952

  • Pinecone

    pinecone.io

    Stores and retrieves vector embeddings at scale for retrieval-augmented generation and agent knowledge systems.

    Retrieval (RAG)From $20/mo

    Widely usedsince 2019

    #98 of 3952

  • Liner

    liner.com

    Searches academic research, generates citations, and drafts professional documents with cited sources.

    Developer toolsRetrieval (RAG)

    EstablishedActively maintained

    #125 of 3952

  • Glean

    glean.com

    Grounds generative AI agents and assistants in company knowledge across 250+ connectors with permission-aware access and cost controls.

    KnowledgeContact sales

    Establishedsince 2019

    #130 of 3952

  • Mintlify

    mintlify.com

    Hosts self-updating documentation and knowledge bases that agents and LLMs can access and search.

    Developer toolsFrom $450/mo

    Established

    #136 of 3952

  • Cohere

    cohere.com

    Provides generative language models and retrieval optimization for enterprise AI applications.

    Retrieval (RAG)Contact sales

    Establishedsince 2019

    #143 of 3952

  • Reducto

    reducto.ai

    Parses documents into structured data with layout preservation, table extraction, and bounding box citations.

    Retrieval (RAG)From $10 per use

    Established

    #166 of 3952

  • LlamaIndex

    llamaindex.ai

    Parses and extracts structured data from complex documents using agentic OCR and layout-aware processing.

    Retrieval (RAG)From $50/mo

    Establishedsince 2023

    #202 of 3952

  • Jina AI

    jina.ai

    Converts URLs to markdown and provides multimodal embeddings and reranking for search and retrieval systems.

    Retrieval (RAG)

    Establishedsince 2020

    #243 of 3952

  • Zilliz

    zilliz.com

    Manages vector data for AI applications with real-time search, discovery, and analytics on a single platform.

    Retrieval (RAG)From $126/mo

    Establishedsince 2017

    #247 of 3952

  • Qdrant

    qdrant.tech

    Stores and searches vectors at scale with metadata filtering, hybrid search, and reranking.

    Retrieval (RAG)Free plan

    Establishedsince 2021

    #254 of 3952

  • micro1

    micro1.ai

    Provides expert human data, evaluation benchmarks, and reinforcement learning environments for training and testing frontier AI models and agents.

    HRContact sales

    Established

    #273 of 3952

  • Galileo

    galileo.ai

    Captures groundtruth data, builds and auto-tunes evaluations, and distills them into production guardrails for AI agents and RAG systems.

    LLM operationsFrom $100/mo

    Established

    #285 of 3952

  • Weaviate

    weaviate.io

    Vector database that stores, indexes, and searches high-dimensional vectors for retrieval-augmented generation and semantic search.

    Retrieval (RAG)From $45/mo

    Established

    #288 of 3952

  • Voyage AI

    voyageai.com

    Generates embeddings and reranks search results to improve retrieval quality for unstructured data.

    Retrieval (RAG)

    Established

    #296 of 3952

  • Unstructured

    unstructured.io

    Converts unstructured documents into clean structured data for AI applications.

    Retrieval (RAG)From $0.02 per use

    Establishedsince 2022

    #357 of 3952

  • Vectara

    vectara.com

    Builds retrieval-augmented generation agents with policy enforcement and hallucination detection across on-premises, VPC, and SaaS deployments.

    Retrieval (RAG)Free plan

    Established

    #365 of 3952

  • Patronus

    patronus.ai

    Generates simulated digital environments and benchmarks for training and evaluating AI agents.

    LLM operationsFrom $25/mo

    Established

    #399 of 3952

  • AnswerManiac

    answermaniac.ai

    Optimizes B2B brand visibility in AI search engines like ChatGPT, Perplexity, and Gemini through content and structured data improvements.

    MarketingRetrieval (RAG)

    EstablishedActively maintained

    #424 of 3952

  • turbopuffer

    turbopuffer.com

    Vector and full-text search database built on object storage, scaling to 256TB per index with sub-10ms latency.

    Retrieval (RAG)From $16/mo

    Established

    #450 of 3952

  • Zenlytic

    zenlytic.com

    Provides a semantic layer and governance for AI agents to query data warehouses accurately across Claude, ChatGPT, Slack, and Teams.

    AnalyticsContact sales

    Emerging

    #490 of 3952

  • PMB

    pmbai.dev

    Stores decisions and lessons in local SQLite, recalled by AI coding agents through MCP before they respond.

    Developer tools

    Emerging

    #514 of 3952

  • ragfish.ai

    ragfish.ai

    Self-hosted platform that ingests documents, spreadsheets, and databases to build retrieval-augmented generation assistants.

    Developer toolsOpen source

    EmergingActively maintained

    #660 of 3952

  • Chemin

    chemin.com

    Builds data pipelines and reinforcement learning workflows for autonomous vehicles, robotics, and production agents.

    DataAnalytics

    EmergingActively maintained

    #834 of 3952

  • Context Link

    context-link.ai

    Connects business documents and data sources so AI assistants can retrieve grounded, source-backed context across your organization.

    Developer tools

    EmergingActively maintained

    #876 of 3952

  • TheCrawler

    miaibot.ai

    Extracts structured data from web pages via API with included AI extraction at flat rates.

    Developer tools

    EmergingActively maintained

    #1085 of 3952

  • MEMXUS

    memxus.com

    Stores and retrieves context across multiple AI tools to improve answer quality and reduce repeated explanations.

    Developer tools

    EmergingMaintained

    #1138 of 3952

  • Alee

    aleeup.com

    Reads your website and docs to train a chatbot that answers visitor questions from your content only.

    Agents

    EmergingMaintained

    #1143 of 3952

  • Querit.ai

    querit.ai

    Provides real-time search and retrieval API for language models with global multilingual content index.

    Developer toolsRetrieval (RAG)

    EmergingActively maintained

    #1279 of 3952

  • ContextVault

    contextvault.dev

    Stores and retrieves shared memories across AI agents and team members within a durable, searchable vault.

    Developer tools

    EmergingActively maintained

    #1297 of 3952

  • Odysseus AI

    odysseusai.org

    Runs autonomous research agents on private files and sources with zero data retention and traceable outputs.

    Automation

    EmergingMaintained

    #1429 of 3952

  • Bluecurve

    bluecurve.io

    Searches fragmented organizational data across formats and languages, delivering weekly business insights through autonomous agents.

    AnalyticsRetrieval (RAG)

    Emerging

    #1645 of 3952

  • Suhas Bhairav

    suhasbhairav.com

    Provides templates and consulting for building production language model systems, agentic workflows, and enterprise knowledge infrastructure.

    Developer tools

    Emerging

    #1760 of 3952

  • Contrive

    contrive.app

    Desktop command bar that searches and acts across Slack, Notion, Google Drive, and other workspace apps.

    Retrieval (RAG)

    EmergingActively maintained

    #2025 of 3952

  • Obdal

    obdal.com

    Converts documents into AI chatbots that answer customer questions on websites, messaging apps, and social media.

    Support

    EmergingActively maintained

    #2082 of 3952

  • AskX

    askx.io

    Builds AI chatbots grounded in your website data to answer visitor questions and capture leads without hallucinating.

    SupportFrom $25/mo

    EmergingActively maintained

    #2220 of 3952

  • Felamity Technologies

    felamity.com

    Integrates and unifies data across applications using retrieval-augmented generation for enterprise insights.

    Data

    EmergingActively maintained

    #2391 of 3952

  • Sensefold

    sensefold.app

    Stores notes, articles, and AI conversations in a shared markdown library that Claude, ChatGPT, and Cursor can read and write to.

    Developer toolsFrom $16/mo

    EmergingActively maintained

    #2429 of 3952

  • Grenseo

    grenseo.com

    Tracks brand visibility across AI search engines and automates content creation optimized for both traditional and AI search.

    MarketingRetrieval (RAG)

    Emerging

    #2456 of 3952

  • TiHub

    tihub.space

    Audits data platforms and AI systems, fixes expensive problems, deploys production RAG assistants on client documents.

    Legal

    EmergingActively maintained

    #2485 of 3952

  • Mantle

    mantle-ai.tech

    Self-hosted knowledge base that learns from your data and serves as memory for AI agents.

    Knowledge

    EmergingActively maintained

    #2566 of 3952

  • ctxd

    ctxd.dev

    Indexes cloud files and makes them searchable via API, CLI, or MCP for AI agents.

    Developer tools

    Emerging

    #2697 of 3952

  • WorkSpace

    karyospace.com

    Self-hosted AI assistant that searches across email, chat, tasks, incidents, and knowledge bases using natural language queries.

    Automation

    EmergingActively maintained

    #2760 of 3952

  • AI-Flow.eu

    ai-flow.eu

    Builds and monitors AI agents that answer employee questions from company data with audit trails and quality feedback loops.

    Agents

    EmergingActively maintained

    #2824 of 3952

  • Refyc

    refyc.com

    Builds knowledge graphs from public sources, mapping connections between people, organizations, and events with cited sources.

    Retrieval (RAG)

    EmergingActively maintained

    #3188 of 3952

  • SageTube

    sagetube.ai

    Transcribes YouTube videos and channels into searchable knowledge bases with cited answers.

    Retrieval (RAG)

    EmergingActively maintained

    #3321 of 3952

  • A self-hosted RAG chatbot boilerplate

    eurorag.eu

    Self-hosted RAG chatbot boilerplate with GDPR-compliant document processing and vector search.

    Developer tools

    EmergingActively maintained

    #3324 of 3952

  • PhantomRank

    phantomrank.com

    Tracks how AI assistants mention, cite, and recommend your brand versus competitors across ChatGPT, Gemini, Perplexity, and other engines.

    MarketingRetrieval (RAG)

    Emerging

    #3454 of 3952

How we read a tool

No votes, no reviews, no vendor claims. Every week a crawler reads each tool's own site and a few public registries, and the words on the card are bands over what it read.

  • Use: visits to the site (estimated), installs from npm and PyPI, presence in Chrome's usage report.
  • Activity: the newest release on GitHub, npm or PyPI; the newest dated page on the site; open roles on a public jobs board.
  • Price: the vendor's own pricing page, read with the date. A figure is printed only when it is on that page.
  • The line and the use cases are written by us from the homepage, one row at a time, and refused when they repeat the vendor's marketing.

How AI assistants read each site — the reading vendors ask us about — is on each tool's own visibility page.