Vooks Public Catalog API vs ChartQuery

A side-by-side comparison built from both listings. Blank cells mean the company has not given that detail; we never guess.

Vooks Public Catalog API compared with ChartQuery
Detail	Vooks Public Catalog API	ChartQuery
What it does	API for accessing Vooks' catalog of animated read-along storybooks and subscription pricing	Generate beautiful charts with a simple API
Stage	Not given	Startup
Founded	Not given	2024
Based in	Not given	FR
Pricing model	Free	Not given
Pricing	Free with rate limit of 600 requests per minute. Optional OAuth 2.0 token available to increase rate limit to 3,000 requests per minute.	Free plan: $0 with 60 requests per hour; Starter: $49/month for 750,000 credits/month; Pro: $149/month for 3,000,000 credits/month; Enterprise: Custom pricing for 15,000,000+ credits/month. Chart render costs 5 credits per call, diagram render 5 credits, AI chart generation 10 credits, AI diagram ge
Key features	Search and filter library by age, topic, language, audio and sort criteria Fetch individual titles with long descriptions Access published subscription plans and trial terms Batch operations for up to 20 reads in one round trip Asynchronous catalog export with OAuth 2.0 authentication RFC 9457 structured error responses Typed client library for npm and vooks CLI Agent plugin support via MCP Registry OpenAPI 3.1 documentation and API catalog RFC 9727	28 diagram languages including Mermaid, PlantUML, GraphViz and D2 Multiple output formats (PNG, SVG, JPEG, PDF) AI chart and diagram generation from text descriptions Sub-500ms response times on average 99.95% uptime SLA GDPR compliant EU-hosted data processing Barcode and QR code generation
What makes it different	No authentication required for catalog reads; no API key, form or quota needed Comprehensive filtering options for children's content by age, topic, language and more Semantic versioning guarantees 180 days minimum support after deprecation of prior versions	No server maintenance required - no headless browser, canvas or Puppeteer needed AI-powered chart generation without JSON configuration Fast generation supporting thousands of visuals per minute without infrastructure provisioning
Community votes	0	0
DR (Domain Rating by Ahrefs)	64 +1 (up) since last check	34 no change since last check
Trust Flow (Majestic)	20	15
Citation Flow (Majestic)	29	24
Referring domains (Majestic)	722	18

4 details filled in for both companies.

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