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hotpath-rs vs PromptDNA

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

hotpath-rs compared with PromptDNA
Detail hotpath-rsPromptDNA logo PromptDNA
What it doesA Rust performance profiler for finding CPU, memory, async, SQL, HTTP, I/O and lock bottlenecks Community library of reusable prompt blocks for AI
StageNot given Not given
FoundedNot given Not given
Based inPL Not given
Pricing modelOpen source Not given
PricingFree and open source under MIT license Free 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
Key features
  • Time, CPU & memory profiling
  • Async observability for futures, channels and streams
  • I/O monitoring for files, TCP and compression streams
  • SQL query profiling for sqlx and Diesel
  • HTTP calls profiling for reqwest and ureq
  • HTTP server profiling for axum routes
  • Concurrency metrics for Mutex and RwLock
  • Tokio runtime monitoring
  • Prometheus & Grafana integration
  • CI regression detection with automatic benchmarking
  • 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
What makes it different
  • No overhead when disabled—all macros compile to no-ops
  • Deterministic instruction counts with Callgrind for stable CI regression checks
  • Instruments real applications with real workloads, not isolated benchmarks
  • MCP server for AI agent integration
  • Live TUI dashboard and static reports
  • 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
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)54 +2 (up) since last check3 no change since last check
Trust Flow (Majestic)130
Citation Flow (Majestic)3425
Referring domains (Majestic)15134

4 details filled in for both companies.

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