Free AI APIs for Answer - 7 Free AI tools

Humata

Chat your way through long documents instantly.

Document chat

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🇺🇸 United States

Released 3y ago

Free + from $1.99/mo

17,481

123

4.0

Wolframalpha

Compute expert-level answers with AI technology

Answers

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🇺🇸 United States

Released 7y ago

Free + from $5/mo

8,441

87

3.6

Superflows

Launch your product's AI assistant without an AI team

Email writing

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🇬🇧 United Kingdom

Released 3y ago

Free + from $999/mo

5,278

37

Slatebox

Create visualizations from natural language

Mind maps

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662 slatebox.com

I'm the creator, so I'm biased. Slatebox lets you build editable diagrams/visuals using natural language. You can even chat with the AI to build a diagrams in real-time and brainstorm together. Real-time collaborate with your team. Starts at free.

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🇺🇸 United States

Released 2y ago

Free + from $6/mo

5,738

38

4.0

Invent | AI Assistants v2.0

Create AI assistants that chat, talk, and answer from your data.

Customer support

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28,501 www.useinvent.com

Alix Gallardo

🛠️ 1 tool 🙏 16 karma

Oct 27, 2025

@Invent | AI Assistants

Hi there, I’m Alix, co-founder of Invent. We’re building the future of Customer Support UX, where humans and AI truly collaborate. Would love to read&hear your thoughts. DM for any questions. We ship fast!

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Released 3mo ago

Free + from $0.0009

31,347

43

5.0