AI APIs for Knowledge processing

ChatDOC

Chat with documents for instant, cited answers.

Document chat

Open

1,498 chatdoc.com

Share

🇭🇰 Hong Kong

Released 3y ago

Free + from $8.99/mo

15,030

96

4.0

Semantic Scholar

AI-powered research tool for scientific literature

Academic research

Open

2,216 www.semanticscholar.org

Share

🇺🇸 United States

Released 6y ago

100% Free

12,906

452

3.6

LightPDF

Chat with documents instantly in 100+ languages.

Document chat

Open

2,243 lightpdf.com

Good to use even for free. Gives answers related directly to the info in the document, along with references to pages where it can be found. Also does well at analyzing graphs and charts

4 Reply Share Delete Report

Share

🇨🇳 China

Released 3y ago

No pricing

12,395

96

3.0

IAsk

Ask AI any question, get instant, accurate answers.

Search

Open

4,498 iask.ai

Ask AI outperforms ChatGPT in search capabilities, providing more accurate and relevant results. Its advanced AI technology ensures a superior search experience for users.

7327 Reply Share Delete Report

Share

🇺🇸 United States

Released 3y ago

Free + from $9.95/mo

14,404

76

4.5

Chat Thing

Create AI chatbots from your existing data

Agents

Open

3,952 chatthing.ai

Share

🇬🇧 United Kingdom

Released 3y ago

Free + from $19/mo

11,081

38

5.0

InfraNodus

Visualize text as networks for powerful insights.

Data analysis

Open

1,027 infranodus.com

Combines knowledge graphs with AI, reveals main topics and gaps in a discourse.

176 Reply Share Delete Report

Share

🇫🇷 France

Released 3y ago

Free + from $20.52/mo

6,764

36

4.0

Sassbook AI Summarizer

Create human-like text summaries effortlessly.

Summaries

Open

Share

🇸🇬 Singapore

Released 5y ago

Free + from $15/mo

4,764

29

Sapling

AI copilot for faster, personalized customer responses

Customer support

Open

134 sapling.ai

Share

🇺🇸 United States

Released 5y ago

Free + from $25/mo

3,598

12

TLDWAI

Make AI summaries from videos instantly

Video summaries

Open

J.I.

🛠️ 1 tool 🙏 143 karma

Dec 11, 2025

@TLDWAI

Great tool to summarise videos, amongst other things. I also made a video on it: https://youtu.be/_zMpsUhwfNk

4 Reply Share Delete Report

Share

Released 3y ago

From $7/mo

2,771

60

4.5

Graphlit

Build AI apps that transform data into knowledge.

Apps

Open

Share

🇺🇸 United States

Released 3y ago

Free + from $49/mo

1,688

15

5.0

Build Chatbot

Make information easily accessible with AI chatbots

Chatbots

Open

244 buildchatbot.ai

We added Build Chatbot to our website for FAQs and support. It impressively gives exact answers from our service files. The ease of getting started is the best. I was up in less than 5 minutes, asking questions to the files.

11 Reply Share Delete Report

Share

🇮🇳 India

Released 2y ago

From $16/mo

1,906

11

5.0

Octopoda

Persistent memory infrastructure for AI agents with Real Time Analytics

AI memory

Open

8,561 www.octopodas.com

Brilliant system and feels fairly easy to use, one issue with sign in took me 5 mins, but i think its fixed now? Not perfect, but a step in the correct direction!

6 Reply Share Delete Report

Share

Released 3mo ago

100% Free

9,902

27

4.8