# AI tools for researchers with an API in 2026

> 17 AI tools for researchers on Finder Atlas offer an API. In 2026 the top of the list is Claude, Grok and DeepSeek, ranked by reviews from people who use them.

- This page: https://finderatlas.com/best/researchers/with-api
- Ranking: reviews on Finder Atlas first, then claimed listings, then editor-reviewed listings, then the editorial score. No paid placement.

## Tools

- [Claude](https://finderatlas.com/tools/claude): Anthropic's AI assistant for writing, analysis, coding and working with files (Freemium · Free plan, paid from $20/month · API · Web, macOS, Windows · 4.5/5 from 2 reviews)
- [Grok](https://finderatlas.com/tools/grok): xAI's AI assistant with live X and web search, image and voice tools (Freemium · Free plan, paid from $8/month · API · Web, iOS, Android · 4.0/5 from 1 review)
- [DeepSeek](https://finderatlas.com/tools/deepseek): Free AI chat app and low-cost API running DeepSeek's open-weights V4 models (Freemium · Free plan, paid from $0.15/1M input tokens · API · Web, iOS, Android)
- [Google Gemini](https://finderatlas.com/tools/gemini): Google's AI assistant for chat, research, image and video creation, and Workspace apps (Freemium · Free plan, paid from $4.99/month · API · Web, iOS, Android)
- [Perplexity](https://finderatlas.com/tools/perplexity): AI answer engine that searches the live web and cites its sources (Freemium · Free plan, paid from $20/month · API · Web, iOS, Android)
- [Gemini Notebook](https://finderatlas.com/tools/notebooklm): Google's Gemini Notebook, formerly NotebookLM, answers questions and builds summaries from your own sources (Freemium · Free plan, paid from $4.99/month · API · Web, iOS, Android)
- [Qwen](https://finderatlas.com/tools/qwen): Alibaba's free AI assistant and open-weight model family, on web, mobile and API (Freemium · Free · API · Web, Android, API)
- [Elicit](https://finderatlas.com/tools/elicit): AI research assistant for literature search, systematic reviews and evidence reports (Freemium · Free plan, paid from $75/user/mo · API · Web, API)
- [FLUX by Black Forest Labs](https://finderatlas.com/tools/flux-ai): Image and video generation models with a pay-per-use API and open weights (Paid · From $0.008/image · API · Web, API)
- [Replicate](https://finderatlas.com/tools/replicate): Run, fine-tune and deploy open-source AI models through a pay-per-use API (Paid · API · Web, API, CLI)
- [Trust Me Bro](https://finderatlas.com/tools/trust-me-bro): Paste a claim, get cited research for and against it and a shareable receipt (Freemium · Free plan, paid from $9.99/month · API · Web, Chrome Extension, API)
- [Kagi](https://finderatlas.com/tools/kagi): Ad-free, subscription-funded search engine with built-in AI assistant and summarization tools (Free trial · Free plan, paid from $5/month · API · Web, iOS, Android)
- [Z.ai Chat](https://finderatlas.com/tools/z-ai): Free GLM-powered AI chatbot and agent from Zhipu AI for writing, coding and research (Freemium · Free plan, paid from $18/month · API · Web, API)
- [Consensus](https://finderatlas.com/tools/consensus): Search peer-reviewed research and get cited, evidence-based answers in seconds (Freemium · Free plan, paid from $20/month · API · Web, Android)
- [Manus](https://finderatlas.com/tools/manus): General AI agent that plans, researches, codes and delivers finished work autonomously (Freemium · Free plan, paid from $20/month · API · Web, macOS, Windows)
- [Kimi](https://finderatlas.com/tools/kimi): Chat, research and agent assistant from Moonshot AI, built on its Kimi K3 model (Freemium · Free plan, paid from $19/month · API · Web, macOS, iOS)
- [Felo](https://finderatlas.com/tools/felo): Multilingual AI search engine that also builds slides, mind maps and research reports (Freemium · Free plan, paid from $14.99/month · API · Web, iOS, Android)

## Related lists

- All 30 tools for researchers: https://finderatlas.com/best/researchers.md
- Free tools for researchers (27): https://finderatlas.com/best/researchers/free.md
- Tools with an API for researchers (17): https://finderatlas.com/best/researchers/with-api.md
- AI Assistants (11): https://finderatlas.com/categories/ai-assistants.md
- Education & Research (3): https://finderatlas.com/categories/education.md
- Developer Tools (1): https://finderatlas.com/categories/developer-tools.md
- Image & Visual AI (1): https://finderatlas.com/categories/image-ai.md
- Productivity (1): https://finderatlas.com/categories/productivity.md

## FAQ

**What is the best AI tool for researchers?**

Claude tops this list. Anthropic's AI assistant for writing, analysis, coding and working with files. It is freemium (free plan, paid from $20/month).

**Which AI tools for researchers are free?**

Claude, Grok, DeepSeek, Google Gemini and Perplexity have a free plan, among 27 in total.

**Which AI tools for researchers have an API?**

Claude, Grok, DeepSeek, Google Gemini and Perplexity offer an API, among 17 in total.

**How is this list ranked?**

Tools with reviews on Finder Atlas come first, by rating. Then listings claimed by their makers, then listings checked by our editors, then Finder Atlas's own 0 to 10 editorial score. Nothing on the list is paid placement.