kitio.aiAgentsKB vs LaunchChair
A side-by-side look at pricing plans, free tiers, features, pros and cons, updated for 2026. AgentsKB is completely free, while LaunchChair is freemium.
At a glance
Best for
Pricing model
Starting price
Free plan
Made by
Based in
Rating
Key features
- Verified answers with sources
- Instant and research modes
- MCP server
- REST API
- Batch queries
- Market and competitor research
- Living product spec
- PRDs and build cards
- Agent run loop with checkpoints
- Launch and SEO assets
| Feature | AgentsKB | LaunchChair |
|---|---|---|
| Best for | Free verified knowledge base that coding agents query via MCP | Product planning layer that gives coding agents specs and build cards |
| Category | Coding | Coding |
| Pricing model | Free | Freemium |
| Starting price | Free | See pricing page |
| Free plan | Yes, fully free | Yes |
| Made by | AgentsKB | LaunchChair |
| Based in | – | – |
| Rating | No ratings yet | No ratings yet |
| Key features |
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Pricing compared
AgentsKB is completely free, while LaunchChair is freemium.
Free plan
Cheapest paid plan
Top plan
Free trial
Prices in USD, checked Nov 5, 2026 or later. Plans change often, so confirm on each tool's site before you buy.
Pros and cons
AgentsKB
- Free with no signup or API key
- Answers link to official docs
- Fast responses for agents
- Coverage focused on developer technologies
- Research mode answers are slower
- Rate limited to 20 requests per second
LaunchChair
- Keeps product context across agent runs
- Works with Codex and Claude
- Covers research through launch
- Pricing details not shown on the homepage
- Needs a separate coding agent
- Many phases to learn at first
Which one should you choose?
Choose AgentsKB if you want:
- Free with no signup or API key
- Answers link to official docs
- Fast responses for agents
Watch out: coverage focused on developer technologies.
Choose LaunchChair if you want:
- Keeps product context across agent runs
- Works with Codex and Claude
- Covers research through launch
Watch out: pricing details not shown on the homepage.
AgentsKB vs LaunchChair FAQ
What is the difference between AgentsKB and LaunchChair?
AgentsKB: Free verified knowledge base that coding agents query via MCP. LaunchChair: Product planning layer that gives coding agents specs and build cards. Both are coding tools.
Is AgentsKB or LaunchChair cheaper?
AgentsKB is completely free, while LaunchChair is freemium.
Do AgentsKB and LaunchChair have free plans?
AgentsKB: Yes, fully free. LaunchChair: Yes.
Who makes AgentsKB?
AgentsKB is made by AgentsKB.
Who makes LaunchChair?
LaunchChair is made by LaunchChair.
Which should I choose, AgentsKB or LaunchChair?
Choose AgentsKB if you value free with no signup or api key and answers link to official docs. Choose LaunchChair if you value keeps product context across agent runs and works with codex and claude.