RAG and retrieval tools with a free plan

Figure and bar: visits/mo, estimate · year: online since

1. #1E

   ExaMCP · open

   Provides web search API and data indexing for AI agents with real-time web crawling and structured data extraction.

   183k
   Active
   From $7 per use
2. #3P

   Parallel Web SystemsMCP · sign-in

   Provides web search API for AI agents to retrieve real-time information with citations.

   76.5k
   Active
   From $0.00 per use
   2023
3. #5M

   Meilisearch

   Hosts searchable indexes with full-text, semantic, and hybrid search across text, images, and video.

   17.3k
   Active
   From $20/mo
4. #6D

   DocsBot

   Builds chatbots trained on your documentation and websites that answer customer and employee questions and can trigger actions in business tools.

   15.8k
   Active
   From $49/mo
5. #7V

   Voyage AI

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

   13.7k
   Active
   Free plan
6. #8Y

   You.com

   Returns live web search results and cleaned page content through APIs that AI agents and LLM apps call for grounding.

   13.6k
   Active
   2020
7. #9Z

   Zilliz

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

   12.3k
   Active
   From $197/mo
   2017
8. #11J

   Jina AI

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

   9.1k
   From $50 per use
   2020
9. #12Q

   Qdrant

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

   7.9k
   Active
   Free plan
   2021
10. #13W

    Weaviate

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

    5.3k
    Active
    From $45/mo
11. #14C

    CustomGPT.ai

    Builds chatbots that answer from your uploaded documents and websites with source citations, embeddable on sites or used internally.

    5k
    Active
    From $89/mo
    2023
12. #15L

    Langflow

    Open-source visual builder for AI agents and RAG applications, where components are wired together on a canvas.

    3.4k
    Maintained
    Free
13. #16T

    Typesense, Inc.MCP · sign-in

    Indexes documents and answers typo-tolerant search queries over a RESTful API, with optional vector and semantic matching.

    2.9k
    Active
    Open source
14. #18U

    UnstructuredMCP · sign-in

    Converts unstructured documents into clean structured data for AI applications.

    2.8k
    Active
    From $0.02 per use
    2022
15. #22P

    PageIndex

    Indexes documents to enable retrieval and question-answering with traced sources.

    942
    Active
    From $0.01 per use
16. #23T

    Takara TLDR

    Provides fast embeddings and code search for AI agents and retrieval-augmented generation applications.

    660
    Active
    Free plan
    2024
17. #25G

    GoVedaMCP · sign-in

    Semantic search over 220 million patents from 108 jurisdictions, with translated results, citation tracing and portfolio charts via API and MCP.

    150
    Active
    From $200/mo
18. #26R

    Ragie Connect

    Indexes documents and retrieves context for AI agents and assistants via APIs.

    133
    Active
    From $100/mo
19. #27K

    KeenableMCP · open

    Search API that returns ranked web results and pages from a live index, plus a query language that turns pages into tables.

    98
    From $1 per use
20. #28O

    Octen

    Provides real-time web search, content extraction, and multimodal embeddings for AI agents and LLM applications.

    57
    Active
    From $0.01 per use
21. #29E

    Endee.io

    Vector search and retrieval platform combining semantic, full-text, and multi-vector search for AI applications at scale.

    39
    Active
    From $99/mo
    2023
22. #30D

    DaaX

    Searches unstructured data and converts natural language to SQL queries with automatic schema synchronization.

    34
    Active
    From $199/mo
23. #31Q

    Querit.ai

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

    22
    Active
    From $4 per use
24. #33W

    Webless

    Embeds semantic search on websites to help visitors find answers and content instantly.

    13
    Active
    From $499/mo
25. #34R

    RobutlerMCP · sign-in

    Browser platform of ready-made apps, such as a vector design editor, that you modify and drive with your own AI assistant.

    9
    Active
    2025
26. #35M

    MindParse

    Indexes documents for persistent search and multi-file question answering with flexible AI model selection.

    7
    Maintained
    From ≈ $11/mo
27. #37O

    Octopoda

    Provides persistent memory storage and retrieval for AI agents with loop detection and spend controls.

    5
    Maintained
    From $19/mo
28. #38G

    GTWY

    Manages AI agents, RAG systems, and chatbots with unified infrastructure, handling memory, orchestration, and integrations.

    5
    Active
    From $29/mo
29. #39L

    LocalRAG!

    Indexes documents locally and answers questions using on-device or cloud AI with source citations.

    2
    Active
    From $4.99/mo
30. #40P

    Polyhistor

    Provides geospatial context and semantic search for AI agents, returning location intelligence in under 20ms.

    2
    Active
    From $29/mo
31. #43V

    Valori

    Stores and searches vectors with cryptographically verifiable state through a REST API.

    1
    Active
    Free plan
32. #44B

    BatesioMCP · open

    Sizes a firm's scanning backlog and retrieval cost, and runs a bates-numbered client file portal with retention dates.

    1
    Active
    From $19/mo
    2026
33. #45R

    rielty

    Established
34. #47F

    FetchPro

    Adds semantic search and voice shopping agent to Shopify stores for product discovery.

    25 linking domains
    Maintained
    From $9/mo
35. #50H

    https://smartarchive.io/en

    Centralizes documents and enables semantic search across them to extract information and answers.

    Emerging
    Active
    From ≈ $11/mo
36. #51K

    Kufuri

    Records audio, transcribes it, and structures conversations for retrieval and AI agent integration.

    Emerging
    From $39/mo
37. #52R

    ReporaAI

    Converts unstructured data into data narratives and reports through natural language planning and code generation.

    Emerging
    Maintained
    From $18/mo
38. #54D

    Dokpod

    Indexes documents and returns matching sections to AI editors via MCP, reducing token usage by 80-95 percent.

    Emerging
    Active
    Free plan
39. R

    Rijwind

    Serves vector map tiles, geocoding, routing and isochrones from one API key, billed against a shared unit pool.

    1
    Active
    From ≈ $5.62/mo
40. S

    Sketch

    Vector design editor for macOS that builds interactive prototypes and exports assets and tokens for developer handoff.

    209k
    Active
    From $12/user/mo
    2010
41. T

    TalarionMCP · sign-in

    Search API returning post-training facts from a curated corpus, so LLM apps can correct stale model knowledge at inference time.

    27
    Active
    From $2 per use