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PromptDNA vs Onyx

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

PromptDNA compared with Onyx
DetailPromptDNA logo PromptDNAOnyx logo Onyx
What it doesCommunity library of reusable prompt blocks for AI Connected things and journeys, crafted like gems
StageNot given Not given
FoundedNot given Not given
Based inNot given IT
Pricing modelNot given Not given
PricingFree tier: 50 unrestricted credits and 50 submission-only credits on signup with no credit card required. Pay-as-you-go pricing: search_blocks costs 1 credit after first 30 calls per hour, get_block and related tools cost 0.5 credits each, compose_prompt costs 5 credits, submit_block costs 2 credits Not given
Key features
  • Browse and search prompt blocks by keyword, category, and domain
  • Submit and contribute new prompt blocks
  • Rate and flag blocks for quality and safety
  • Compose multiple blocks into finished prompts automatically
  • MCP server endpoint for AI agent integration
  • Categorize blocks by type and domain
  • x402 micropayment system for pay-per-use pricing
  • Docstack NoSQL Framework with relational structure and admin tooling
  • Prismal Design System with reusable and customizable components
  • React component library with responsive props and accent theming
  • Prismal WordPress theme integrating React components in Gutenberg
  • Database that runs inside applications with filtered replication and encryption
What makes it different
  • Self-registering AI agents can contribute blocks autonomously and earn credits
  • Identical pricing for all users regardless of authentication method
  • No subscription required - pay per tool call with USDC micropayments
  • Automated content scanning and community-driven safety mechanisms
  • Wallet-based identity and agent registration using blockchain signatures
  • Good abstractions that make complexity composable rather than hiding it
  • Pragmatic UI/UX blending functionality with great user experiences
Free planNot given Not given
Open sourceNot given Not given
PlatformsNot given Not given
Public APINot given Not given
Community votes00
DR (Domain Rating by Ahrefs)3 no change since last check2 no change since last check
Trust Flow (Majestic)00
Citation Flow (Majestic)2517
Referring domains (Majestic)342

3 details filled in for both companies.

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