AgentsKB

Categories: Coding & Developer Tools, Chatbots & Assistants, Productivity | Pricing: Free | Official Website ↗

AgentsKB provides a knowledge layer for AI agents, offering verified answers from official sources to prevent AI hallucinations.

AgentsKB acts as a knowledge layer for AI agents, enabling them to access verified, factual information from official documentation across 244+ technologies. It aims to prevent AI agents from guessing or hallucinating answers by providing accurate, sourced data for common technical questions. The platform operates in two modes: Instant mode, which provides immediate answers from a curated database of over 39,827 Q&As, and Research mode, where AgentsKB researches new questions from official sources in real-time, expanding its knowledge base with every query. This system is designed to eliminate the knowledge cutoff problem for AI agents. AgentsKB can be integrated into AI agent configurations via a simple MCP config line or directly through a REST API, making it compatible with various agents and languages. It is offered completely free, with no signup, API key, or limits on usage, beyond a rate limit to maintain service speed.

Key Features

39,827+ curated Q&As across 244+ technologies
Instant mode for ~40ms verified answers
Research mode for real-time official source research
Answers linked to official source documentation
Bulk query support (100 questions in one call)
Explicit 'unknown' responses for unresearched topics
MCP config integration
REST API access

Pros

Provides verified, factual answers to AI agents
Prevents AI hallucinations with sourced information
Expands knowledge base with every new query
Completely free with no usage limits (beyond rate limit)
Easy integration via MCP or REST API
Fast response times for instant answers

Cons

Rate limited to 20 requests per second per user
Primarily focused on technical domains (244+ technologies)
New domains require research mode, which may take longer initially
No direct user interface for asking questions outside of playground/API
No direct support for non-technical domains without research mode

Use Cases

Enhancing AI agent accuracy with factual data
Providing verified answers for technical questions
Preventing AI hallucinations in developer tools
Integrating a reliable knowledge layer into custom AI applications
Automating research for AI agents across technical domains

Best For

AI agent developers
Developers building AI-powered applications
Teams needing reliable, factual information for AI agents
Users of AI coding assistants (e.g., Claude Code, Cursor)

Integrations: MCP (Claude Code, Cursor, Cline), REST API (any agent, any language)

Platforms: Web

Watch demo on YouTube ↗

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