# Best Research & data agents — The Agents Index

> Source: https://theagentsindex.com/category/research-agents (curated, quality-gated, re-verified)

Agents that browse, gather and synthesise information — web-answer engines, autonomous task agents, open-source research pipelines, and specialists for academic literature or enterprise data.

13 quality-gated agents in this category. Each name links to its answer-first markdown twin.

| Name | What it is | Pricing | API |
| --- | --- | --- | --- |
| [Glypse](https://theagentsindex.com/glypse.md) | AI research engine for Polymarket and Kalshi prediction markets, built on social sentiment analysis. | free | — |
| [jobfinder-ai](https://theagentsindex.com/jobfinder-ai.md) | AI job-search agent that sources roles, completes employer application forms and emails verified hiring managers. | freemium | Yes |
| [NeverApply](https://theagentsindex.com/neverapply.md) | Consumer job-search agent that finds matching roles, tailors your resume and submits applications for you. | paid | Yes |
| [TinyFish](https://theagentsindex.com/tinyfish.md) | Web infrastructure for AI agents: search, page fetch, cloud browsers and goal-driven web automation. | freemium | Yes |
| [Julius AI](https://theagentsindex.com/julius-ai.md) | AI workspace that researches, runs Python/R and SQL analysis, and builds decks, reports, sites and video. | freemium | No |
| [Webhound](https://theagentsindex.com/webhound.md) | Budget-capped autonomous web research returning cited reports, datasets and machine-readable claims via MCP or API. | paid | Yes |
| [Genspark](https://theagentsindex.com/genspark.md) | All-in-one AI workspace with autonomous agents for slides, docs, sheets, code, media and scheduled automation. | freemium | Yes |
| [Undermind](https://theagentsindex.com/undermind.md) | AI co-researcher that runs deep literature searches over 200M+ scientific papers and cites every source. | freemium | Yes |
| [GC AI](https://theagentsindex.com/gc-ai.md) | Legal AI platform for in-house counsel, spanning drafting, contract review, playbooks and research. | paid | Yes |
| [Elicit](https://theagentsindex.com/elicit.md) | Research agent that searches 138M+ papers and runs systematic reviews with sentence-level citations. | freemium | Yes |
| [GPT Researcher](https://theagentsindex.com/gpt-researcher.md) | Open-source autonomous research agent that writes cited long-form reports from web and local sources. | free | Yes |
| [Manus](https://theagentsindex.com/manus.md) | General-purpose AI agent that plans and executes multi-step tasks on its own cloud computer. | freemium | Yes |
| [Perplexity](https://theagentsindex.com/perplexity.md) | AI answer engine with an agentic Computer, the Comet browser, and a developer API for web-grounded search. | freemium | Yes |