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LibraLM
✓ verifiedFreemium
Turns 50+ book summaries into AI apps through an MCP server, letting non-coders build advisors, simulators and tools in Claude Desktop.
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Originality AI
✓ verifiedPaid
Content-integrity suite pairing an accurate AI-text detector with plagiarism, fact, and readability checks.
2.4M visits/mo13K saves
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Grammarly
✓ verifiedFreemium
Widely used AI writing assistant offering grammar, tone and rewrite suggestions plus generative AI across apps; free tier available.
54M visits/mo
Pricing
Free: $0/mo (50 API calls)
Pro: $9.99/mo (unlimited API calls)
Pro: $14.95/month (2,000 credits/mo)
Enterprise: $179/month (15,000 credits/mo)
Free: $0
Pro: $12/member/mo billed annually (or $30/mo)
Core features
- ✦50+ book summaries and chapter breakdowns
- ✦MCP server integration with Claude Desktop
- ✦Build AI apps, games and simulators from books
- ✦No-code app creation in minutes
- ✦Free API key with credits
- ✦Companion mobile app (LibraLM Scenario)
- ✦AI-content detector with sentence-level highlighting
- ✦Plagiarism checker
- ✦Fact, grammar, and readability checkers
- ✦Chrome extension with writing replay
- ✦Team management and API access
- ✦Real-time grammar, spelling and clarity checks
- ✦Full-sentence and paragraph rewrites
- ✦Tone and brand-style suggestions
- ✦Generative AI text with prompts
- ✦AI detector and humanizer agents
- ✦Works across apps, browsers and documents
Use cases
- →Build a financial advisor from a finance book
- →Create negotiation or conversation simulators
- →Prototype AI tools grounded in book content
- →Detect AI-generated text in submissions
- →Check content for plagiarism
- →Verify facts before publishing
- →Prove authorship of original writing
- →Run content QA at scale for agencies
- →Writing clear, error-free documents and emails
- →Adjusting tone for different audiences
- →Generating and rewriting text with AI
- →Maintaining brand voice across a team
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