Captapi vs WebKnox

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

Captapi compared with WebKnox
Detail	Captapi	WebKnox
What it does	One REST API for structured data from 33 social platforms	An API that turns chat questions into sourced, typed UI cards
Stage	Not given	Established
Founded	Not given	2011
Based in	Not given	DE
Pricing model	Freemium	Freemium
Pricing	Free: 100 lifetime credits, 40 requests/minute. Starter: $9/month with 2,000 monthly credits, 120 requests/minute. Pro: $27/month with 6,000 monthly credits, 300 requests/minute. Business: $90/month with 20,000 monthly credits, 600 requests/minute. All plans include access to all 179 APIs. Credits d	Free: $0/month, 50 tokens a day. Starter: $9/month, 1,000 tokens a day. Pro: $49/month, 10,000 tokens a day. Scale: $199/month, 50,000 tokens a day. Token packs: 5,000 tokens for $10, 25,000 tokens for $40, 100,000 tokens for $120.
Key features	Transcripts and AI summaries powered by GPT-4o-mini Comments, replies, and profile statistics Keyword, hashtag, and user search across platforms Structured JSON responses without HTML parsing MCP server for AI agents like Claude and Cursor Official CLI and TypeScript SDK HMAC-signed webhooks for monitoring and alerts Automatic metric history time series Batch endpoint for up to 20 calls per request 24-hour shared cache with optional free cache hits	Card types for weather, nutrition, recipes, and comparisons Integration with Vercel AI SDK Web component for rendering answer cards Source attribution for all answers Pay only for matched answers, questions are free No user conversation storage or message text logging Versioned card schemas that never break existing code Infrastructure running in Germany
What makes it different	One API key works across 33 platforms with 179 endpoints instead of separate SDKs and OAuth flows No OAuth or per-platform API keys required Pay only for successful data extraction, not for failed requests or cache hits Cross-platform analytics with normalized metrics in one consistent format	Rich, sourced answer cards instead of text Model sees only text and sources, not the full card User privacy by design with no message storage Works with any AI SDK model that supports tool calling
Community votes	0	0
DR (Domain Rating by Ahrefs)	32 +2 (up) since last check	6 no change since last check
Trust Flow (Majestic)	12	2
Citation Flow (Majestic)	38	23
Referring domains (Majestic)	263	34

5 details filled in for both companies.

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