Research & Knowledge
AI agents for web search, document retrieval, and knowledge synthesis. These tools give agents real-time access to the internet, specialized databases, and document stores — enabling grounded, citation-backed responses. Critical for any agent that needs current or domain-specific information.
Agent Lightning
by Microsoft
Optimizes any AI agent with reinforcement learning without rewriting it, decoupling training from execution so existing…
LightRAG
by HKU Data Science Lab
Builds a graph-based retrieval index over documents so agents can answer questions spanning many sources, served…
Agent Switchboard
by Agent Switchboard
Searches a curated, open-source directory of AI agents, MCP servers, and agentic tools by capability, category, or…
AIData.Broker
by O-mega Enterprise, Inc.
Queries published AI training-data prices, market rates, buyers, licensing deals and court rulings, and values a data…
AITraining.jobs
by O-mega Enterprise, Inc.
Searches open AI-training jobs — trainers, RLHF evaluators, annotators, domain experts — collected hourly from about 60…
akta.pro
by akta.pro
Serves private-company data to agents — 20M+ companies across 70+ fields with entity-resolved news, available over…
Algolia
by Algolia
Hosted search and discovery API with typo tolerance, faceting, and vector search, callable directly for agent retrieval…
Almanac
by Almanac
Compiles a company-wide wiki from Slack, files, wikis, and repos, then gives agents its own computer plus MCP search…
AnythingLLM
by Mintplex Labs
Runs an all-in-one, self-hosted RAG and agents app: chat with documents, build agents, and connect tools via MCP.…
Arvow
by Arvow
AI SEO agents for keyword research, content generation and publishing, reachable through a documented REST API (OpenAPI…
Atlassian Rovo
by Atlassian
AI teammate for Atlassian products — searches across Jira, Confluence, and connected apps to find answers and automate…
Ball Ranks Fantasy Sports
by Ball Ranks
Serves NFL and NBA fantasy rankings and player projections to agents over a keyless read-only MCP server and a public…
Brave Search MCP
by Brave
Brave Search MCP server. Gives AI agents privacy-preserving web and local search with an independent index — no Google…
Casetext / CoCounsel
by Thomson Reuters
AI legal research assistant by Thomson Reuters that reviews documents, drafts memos, analyzes contracts, and finds…
Cherry Studio
by CherryHQ
Runs a Windows, Mac, and Linux desktop client for OpenAI, Gemini, Anthropic, Ollama, and LM Studio models, with 300+…
Clify
by Helios One Oy
Calls 135 public websites — package registries, weather, transit, government and science data — as typed JSON commands…
Clipto MCP
by Clipto
Indexes terabytes of local video, audio, and images so agents can search them in natural language and pull back…
Cloudflare Web Search API
by Cloudflare
Returns structured web search results from Exa, Linkup, or Ceramic through Cloudflare's AI Gateway via REST or a…
Concho
by Concho AI
Models an entire enterprise codebase into a queryable knowledge layer, then serves sourced architectural and…
context.dev
by context.dev
Scrapes, crawls and searches the web for agents through a REST API, SDKs, CLI and hosted MCP server, returning…
CourtListener MCP
by Free Law Project
Searches US case law, PACER dockets, judges, citations, and oral arguments through a hosted MCP server over the Free…
Crawl4AI
by UncleCode
Crawls and scrapes web pages into clean Markdown for RAG pipelines, with CSS, XPath, and LLM-driven structured…
Crunchbase MCP
by Crunchbase
Brings Crunchbase private-market intelligence into Claude, ChatGPT and Cursor over MCP, covering company profiles…
DeerFlow
by ByteDance
Open-source deep research super-agent from ByteDance that orchestrates sub-agents with memory, code sandboxes, and…
Docling
by IBM Research / LF AI & Data
Parses PDF, DOCX, PPTX, XLSX, HTML, audio, and image files into a unified DoclingDocument and exports Markdown, HTML…
Exa AI
by Exa
Neural search engine API that understands meaning — find similar pages, search by content type, and get clean extracted…
FastGPT
by labring
Builds AI agents on a visual Flow canvas backed by hybrid-retrieval knowledge bases, workflow and RPA nodes…
Firecrawl
by Firecrawl
Turn websites into LLM-ready data — crawl, scrape, and convert web pages to clean markdown for AI consumption.
FlexQueries
by FlexQueries
Research keywords, SERPs, backlinks, competitors, rankings, site audits and AI visibility via a hosted OAuth MCP server…
Fungsi.id MCP
by Fungsi.id
Search Indonesian job listings, company profiles, and city, province, category and job-type metadata through eight…
Geoloods
by Softwareloods
Resolves named places (cities, towns, villages, parks, landmarks) to coordinates plus country, timezone and population…
Glama
by Glama
MCP server directory with a public paginated JSON API for programmatic discovery, plus hosting and inspection tooling…
Glean
by Glean
Enterprise AI search and knowledge management — connects all your company apps and surfaces answers with AI-powered…
GPT Researcher
by Assaf Elovic
Autonomous deep-research agent that plans queries, browses the web in parallel, and produces cited research reports in…
Graphify
by Graphify Labs
Maps a codebase, docs, PDFs, and media into a queryable knowledge graph so AI coding assistants trace and cite paths…
HeroHunt.ai
by Eevee Meets B.V. (HeroHunt.ai)
Searches and enriches public talent profiles across GitHub, StackOverflow and the web through a natural-language…
Hugging Face MCP
by Hugging Face
Discovers AI models, explores datasets, and accesses model documentation and capabilities on Hugging Face — the central…
Jina Reader
by Jina AI
Web reader and search API for AI pipelines. Converts any URL to clean markdown, runs grounded search, and powers RAG at…
Jockey by TwelveLabs
by TwelveLabs
Searches, summarizes and assembles clips from your video and image library in plain language, for teams working in…
Keenable
by Keenable
Serves a hundred-billion-document web index built for agents rather than human search pages, returning dense structured…
Khoj
by Khoj AI
Self-hostable AI second brain that answers over your documents and the web, runs custom agents, and schedules…
Linkup
by Linkup Platform
Production-grade web search API for AI — sourced, cited answers with full-text snippets from trusted sources. REST API…
LinqAlpha
by LinqAlpha
Run research agents over filings, transcripts, and news for buy-side investing — encodes an analyst research framework…
LlamaIndex
by LlamaIndex
Data framework and cloud platform for LLM apps over private data. Offers parsing, indexing, retrieval, agent workflows…
LLM Wiki
by nashsu
Builds and maintains an interlinked wiki from your documents in a desktop app, and exposes hybrid search, graph and…
Markdownify MCP
by zcaceres
MCP server that converts PDFs, images, audio files, and web pages into clean Markdown for efficient LLM ingestion and…
MathCode
by Math-AI
Mathematical coding agent that formalizes and verifies mathematical reasoning by generating and checking executable…
MaxKB
by 1Panel
Open-source enterprise RAG platform for building AI agents. Upload docs, auto-vectorize, and orchestrate multi-step…
MDZHB
by Borealis Dynamics
Public, persistent message board for AI agents to publish and read findings across sessions via HTML/JSON and an HTTP…
MinerU
by OpenDataLab
Converts PDFs, Office documents, and scanned pages into LLM-ready Markdown or JSON, preserving tables, formulas, and…
Obsidian MCP
by Markus Pfundstein
MCP server connecting AI agents to Obsidian vaults via the Local REST API plugin. Read, search, and write notes to…
Onyx
by Onyx
Open-source enterprise AI search and assistant platform — connects to Slack, GitHub, Confluence, Drive and 40+ sources…
OpenAlex AI Agent Connector
by OpenAlex
Lets AI assistants search and analyze OpenAlex scholarly works, authors, institutions, and citations over a remote MCP…
OpenKnowledge
by Inkeep
Runs an AI-native Markdown editor and wiki with built-in MCP server, skills, and agentic search. Connects to Claude…
OpenLLMetry
by Traceloop
Instruments LLM and agent applications with OpenTelemetry-native tracing, exporting spans for prompts, tool calls, and…
OpenScience
by Synthetic Sciences
Runs a research agent for scientists that reviews literature, writes and runs analysis code, and reproduces…
OWL
by CAMEL-AI Community
Optimised Workforce Learning multi-agent system ranked #1 open-source on the GAIA benchmark, orchestrating specialised…
PageIndex
by Vectify AI
Indexes long documents as a reasoning-based hierarchical tree so agents retrieve by navigating structure instead of…
Parallel
by Parallel Web Systems
Gives AI agents web search, URL extraction, and deep research APIs that return cited, structured results, with Python…
Patsnap
by Patsnap
Patent and scientific literature search across global databases using natural language, semantic, or keyword queries…
Perplexity Sonar
by Perplexity
AI search API delivering grounded, cited answers with real-time web access — power your apps with Perplexity's search…
Placement API
by Future Bets, Inc.
Search, compare and buy SEO link placements across 10 supplier marketplaces via one API or MCP, with independently…
Prime Agent
by Prime Intellect
Self-improving reinforcement-learned agent from Prime Intellect that refines its own policy across long-horizon tasks.
PrivateGPT
by Zylon AI
Self-hosted document QA platform with OpenAI-compatible REST API, local LLM support via Ollama, a full RAG pipeline…
Profound
by Profound
Tracks and shapes how brands appear inside AI search and answer engines, exposing visibility analytics to agents…
QMD
by Tobi Lütke
Indexes local markdown notes, meeting transcripts, and docs for on-device BM25, vector, and LLM-reranked hybrid search…
RAGFlow
by InfiniFlow
Open-source RAG engine with deep document parsing (tables, charts, images) and an official MCP server. Deploy via…
Ragie
by Ragie
Retrieval API for AI applications. Ingest PDFs, web pages, and files, then query with semantic search. Built-in…
Reddit MCP Buddy
by karanb192
MCP server for Reddit — search subreddits, retrieve posts and comment threads, analyze user activity, and post content.…
RenooLab
by RenooLab
Find building tradespeople in France, plan multi-trade searches and request moderated contact. Free read-only A2A…
Rival Ads
by Rival Ads
Tracks competitors’ ads on Meta, Google, TikTok and LinkedIn from public ad libraries, and exposes monitors, ad…
Rowboat
by Rowboat Labs
Builds a backlinked knowledge graph from your email, meetings and Slack in a local desktop app, then lets agents query…
ScrapeGraphAI
by ScrapeGraphAI
Scrapes websites from a natural-language description of the data you want, building the extraction graph automatically…
Semantic Scholar MCP
by Community
Searches millions of academic papers on Semantic Scholar and arXiv with citation analysis and full-text PDF extraction.…
Serper
by Serper
Fast Google search API returning structured SERP results, widely used to give agents fresh web results without scraping.
Sniffington
by KMF Ventures LLC
Monitors brand mentions across Reddit, X, LinkedIn and other platforms. Exposes mentions, briefs, analytics and reply…
SoL-Pi
by NVIDIA
Extends the Pi agent harness with AutoResearch loops from NVIDIA, improving efficiency on long-running autonomous…
STORM
by Stanford OVAL
Researches a topic and writes a cited, Wikipedia-length report by simulating multi-perspective question asking.…
superagnt_
by agntdata, inc.
Connects agents to social, web, SEO and lead-enrichment data across 10 platforms and 262 REST endpoints, reachable over…
Tako
by TakoData
Live web search plus licensed datasets for agents, covering company financials, macroeconomic indicators, web traffic…
Tavily
by Tavily
Search API built specifically for AI agents — optimized for LLM consumption with structured results, content…
Terminal-Bench-Science
by Stanford University
Evaluates agents on 70 expert-curated real scientific research workflows, run and graded through the Harbor benchmark…
ToolUniverse
by Harvard MIMS Lab
Curates a large collection of scientific tools and MCP servers for AI scientists, exposing biomedical and research APIs…
TrendRadar
by sansan0
Aggregates trending lists from 11 mainstream platforms and RSS feeds, filters them by keyword, pushes digests to chat…
WeKnora
by Tencent
Turns documents into a queryable knowledge base with RAG question answering, a ReAct agent orchestrating retrieval, MCP…
What Are You Building
by What Are You Building
Catalogs indie builders and their AI/SaaS products worldwide by category and country. Exposes a public JSON API and MCP…
Xquik
by Xquik
Search X (Twitter) posts, profiles and followers, run keyword and account monitors, and post or manage connected…
You.com Search API
by You.com
Programmable AI search with web, news, and RAG endpoints — grounded answers with citations for AI applications.