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PromptDNA vs OpenGrant

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 OpenGrant
DetailPromptDNA logo PromptDNAOpenGrant logo OpenGrant
What it doesCommunity library of reusable prompt blocks for AI Search UK grant schemes and funders from Node.js or the terminal
StageNot given Not given
FoundedNot given Not given
Based inNot given GB
Pricing modelNot given Open source
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
  • Search grants with filters for region, organisation, theme and deadline
  • Count matching grant schemes and get link to website search
  • Retrieve public facts for individual grant schemes
  • Look up funder profiles by charity number, slug or name
  • No API key required
  • No runtime dependencies
  • MIT licensed open source
  • Rate limit of 60 requests per 60 seconds per client
  • Command-line tool with --json output option
  • Access to OpenGrant MCP server tools
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
  • No API key needed to use the SDK
  • Search UK grant schemes and funders from code or terminal
  • MIT licensed and open source
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 checkNot checked yet no change since last check
Trust Flow (Majestic)00
Citation Flow (Majestic)2515
Referring domains (Majestic)345

3 details filled in for both companies.

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