# Research & Data Agents

> Agents that search, analyze, and synthesize information, documents, and data.

Research and data agents search, read, and synthesize information — across the open web, academic sources, or your own documents — into answers you can act on, ideally with citations. The decision comes down to source quality and coverage, how transparently the agent cites what it used, and whether it can work over your private or internal data as well as the public web. For anything high-stakes, verifiable citations you can click and check matter far more than fluent prose: the failure mode of these tools is confident synthesis of wrong or outdated sources, so treat them as accelerators, not authorities. Look at how the agent handles conflicting sources, whether it distinguishes primary from secondary material, and how it deals with recency on fast-moving topics. If you're pointing it at your own corpus, evaluate the connectors, how it chunks and retrieves, and whether answers stay grounded in your documents rather than drifting to the model's memory. Pricing ranges from free open-source pipelines you run yourself to usage-based hosted products, and deeper research runs cost more in tokens and time. The most useful tools make their reasoning and sources inspectable so you can audit an answer instead of just trusting it — verify anything consequential before you rely on it, and prefer transparency over confidence.

27 tools indexed. Sponsored placements are labeled and never ranked; open-source ordering reflects real GitHub adoption. Browse on the web: https://agentsearchengine.app/category/research-agents

## Commercial products (alphabetical — stars don't measure commercial adoption)
- [Consensus](https://agentsearchengine.app/agents/consensus) — AI search engine over 200M+ scientific papers. · Freemium · Agent
- [Elicit](https://agentsearchengine.app/agents/elicit) — AI research assistant that analyzes papers and automates literature review. · Freemium · Agent · best for systematic literature review and analysis over academic papers
- [Harvey](https://agentsearchengine.app/agents/harvey) — Domain-specific AI agents for legal and professional services work. · Paid product · Platform
- [Perplexity](https://agentsearchengine.app/agents/perplexity) — AI answer engine with deep research agents that cite their sources. · Freemium · Agent · best for fast research answers with citations, plus agentic deep research on demand

## Open-source index (ranked by adoption)
1. [firecrawl](https://agentsearchengine.app/agents/firecrawl) — The API to search, scrape, and interact with the web at scale. · Open source · Infrastructure · 160k★ · TypeScript · AGPL-3.0 · active 1 day ago · best for feeding agents clean web data: crawl, scrape, and convert to markdown via api
2. [Scrapling](https://agentsearchengine.app/agents/scrapling) — An adaptive Web Scraping framework that handles everything from a single request to a full-scale crawl! · Open source · Infrastructure · 72k★ · Python · BSD-3-Clause · active 4 days ago · best for scraping sites that change layout or block bots, with selectors that self-repair
3. [TrendRadar](https://agentsearchengine.app/agents/trendradar) — AI-driven public opinion & trend monitor with multi-platform aggregation, RSS, and smart alerts. · Open source · Agent · 61k★ · Python · GPL-3.0 · active 17 days ago · best for filtering trending news into push alerts on wechat, telegram, feishu, or slack
4. [BettaFish](https://agentsearchengine.app/agents/bettafish) — 微舆：人人可用的多Agent舆情分析助手，打破信息茧房，还原舆情原貌，预测未来走向，辅助决策！从0实现，不依赖任何框架。 · Open source · Agent · 42k★ · Python · GPL-2.0 · active 13 days ago · best for multi-agent sentiment analysis across social platforms and large comment datasets
5. [khoj](https://agentsearchengine.app/agents/khoj) — Your AI second brain. Self-hostable. Get answers from the web or your docs. Build custom agents, schedule automations, do deep research. · Open source · Agent · 36k★ · Python · AGPL-3.0 · active 1 day ago · best for a self-hostable ai second brain over your notes and documents
6. [storm](https://agentsearchengine.app/agents/storm) — An LLM-powered knowledge curation system that researches a topic and generates a full-length report with citations. · Open source · Agent · 31k★ · Python · MIT · active 10 months ago · best for generating wikipedia-style researched reports with citations from an open-source system
7. [FastGPT](https://agentsearchengine.app/agents/fastgpt) — FastGPT is a knowledge-based platform built on the LLMs, offers a comprehensive suite of out-of-the-box capabilities such as data processing, RAG retrieval, and visual AI workflow orchestration, · Open source · Platform · 29k★ · TypeScript · active today · best for building rag agents with visual workflow orchestration and built-in data processing
8. [gpt-researcher](https://agentsearchengine.app/agents/gpt-researcher) — An autonomous agent that conducts deep research on any data using any LLM providers · Open source · Agent · 29k★ · Python · Apache-2.0 · active 16 days ago · best for self-hosted autonomous research reports with your own api keys
9. [haystack](https://agentsearchengine.app/agents/haystack) — Open-source AI orchestration framework for building context-engineered, production-ready LLM applications. · Open source · Framework · 26k★ · Python · Apache-2.0 · active 2 days ago · best for modular python pipelines for production rag, search, and agent workflows
10. [DeepResearch](https://agentsearchengine.app/agents/deepresearch) — Tongyi Deep Research, the Leading Open-source Deep Research Agent · Open source · Agent · 20k★ · Python · Apache-2.0 · active 5 months ago · best for running alibaba's tongyi deepresearch model locally for deep research tasks
11. [WeKnora](https://agentsearchengine.app/agents/weknora) — Open-source LLM knowledge platform: turn raw documents into a queryable RAG, an autonomous reasoning agent, and a self-maintaining Wiki. · Open source · Platform · 19k★ · Go · active 2 days ago · best for enterprise document understanding with rag, a react agent, and auto-generated wikis
12. [local-deep-research](https://agentsearchengine.app/agents/local-deep-research) — ~95% on SimpleQA (e.g. Qwen3.6-27B on a 3090). Supports all local and cloud LLMs (llama.cpp, Ollama, Google,...). 10+ search engines - arXiv, PubMed, your private documents. · Open source · Agent · 8.8k★ · Python · MIT · active today
13. [MiroThinker](https://agentsearchengine.app/agents/mirothinker) — MiroThinker is a deep research agent optimized for complex research and prediction tasks. Our latest models, MiroThinker-1.7, achieves 74.0 and 75.3 on the BrowseComp and BrowseComp Zh, respectively. · Open source · Agent · 8.4k★ · Python · Apache-2.0 · active 28 days ago
14. [deep-searcher](https://agentsearchengine.app/agents/deep-searcher) — Open Source Deep Research Alternative to Reason and Search on Private Data. Written in Python. · Open source · Agent · 8.0k★ · Python · Apache-2.0 · active 8 months ago
15. [unstract](https://agentsearchengine.app/agents/unstract) — LLM-Driven Extraction of Unstructured Data — Built for API Deployments & ETL Pipeline Workflows · Open source · Platform · 7.1k★ · Python · AGPL-3.0 · active 1 day ago
16. [DeepAnalyze](https://agentsearchengine.app/agents/deepanalyze) — DeepAnalyze is the first agentic LLM for autonomous data science. 你的AI数据分析师，自动分析大量数据，一键生成专业分析报告！ · Open source · Agent · 4.4k★ · Python · MIT · active 1 month ago
17. [ms-agent](https://agentsearchengine.app/agents/ms-agent) — MS-Agent: a lightweight framework to empower agentic execution of complex tasks · Open source · Framework · 4.4k★ · Python · Apache-2.0 · active 3 days ago
18. [Sidekick](https://agentsearchengine.app/agents/sidekick) — A native macOS app that allows users to chat with a local LLM that can respond with information from files, folders and websites on your Mac without installing any other software. · Open source · Agent · 3.3k★ · Swift · MIT · active 2 months ago
19. [MiroFlow](https://agentsearchengine.app/agents/miroflow) — Top-1 on 5+ benchmarks | Web UI | Supports MiroThinker, Claude, Kimi, OpenAI · Open source · Framework · 3.1k★ · Python · Apache-2.0 · active 28 days ago
20. [Adala](https://agentsearchengine.app/agents/adala) — Adala: Autonomous DAta (Labeling) Agent framework · Open source · Framework · 1.6k★ · Python · Apache-2.0 · active 6 days ago
21. [ToolUniverse](https://agentsearchengine.app/agents/tooluniverse) — Democratizing AI scientists with ToolUniverse · Open source · SDK / library · 1.6k★ · Python · Apache-2.0 · active today
22. [Auto-Deep-Research](https://agentsearchengine.app/agents/auto-deep-research) — "Your Fully-Automated Personal AI Assistant" · Open source · Agent · 1.6k★ · Python · active 9 months ago
23. [TrustRAG](https://agentsearchengine.app/agents/trustrag) — TrustRAG：The RAG Framework within Reliable input,Trusted output · Open source · Framework · 1.3k★ · Python · active 6 months ago

## Frequently asked
**What is a research agent?**
A research agent gathers and synthesizes information across many sources — web, papers, or your documents — and produces summarized, ideally cited, answers.

**How do I choose a research agent?**
Weigh source coverage and quality, how transparently it cites, whether it can search your private data, and how it handles conflicting or uncertain information.

**Can research agents be trusted?**
Treat them as accelerators, not authorities: prefer tools that cite sources you can check, and verify anything consequential.

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Source: [Agent Search Engine](https://agentsearchengine.app). Full directory in one file: https://agentsearchengine.app/llms-full.txt