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Kivel vs 51Degrees

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

Kivel compared with 51Degrees
DetailKivel logo Kivel 51Degrees
What it doesCommand line interface for running utilities, creating webhooks, uploading and downloading files, and calling API endpoints Device and IP intelligence APIs for developers
StageMVP Established
FoundedNot given 2010
Based inNot given GB
Pricing modelFreemium Freemium
PricingFree: $0 with 3 agents, 1,000 hosted runs/day, 64 MiB storage. Pro: $2/month with 25 agents, 20,000 hosted runs/day, 512 MiB storage. Team: $6/month per workspace with 100 agents, 100,000 hosted runs/day, 2 GiB storage. Free plan: 10,000 monthly requests (cloud and on-premise); Essentials: €49 per month for 100,000 requests (cloud); Pro: €360 per month for 1,000,000 requests (cloud); Pro Plus: €680 per month for 5,000,000 requests (cloud); Bespoke: unlimited requests, custom terms (cloud and on-premise)
Key features
  • Run utilities from pipes with JSON input and output
  • Create and manage webhook inboxes
  • Call any API endpoint with JSON body
  • Standard input limited to 10 MiB with 90 second timeout
  • Error reporting as JSON to standard error
  • Device Detection - identify device model, OS, browser, and hardware
  • IP Intelligence - location, network, carrier, and VPN detection
  • Bot detection and Human Confidence scoring
  • Geolocation and reverse geocoding powered by OpenStreetMap
  • Pipeline API for custom data services
  • 51Did Inspector tool to inspect identifiers
  • Prebid.js RTD module integration
  • Cloud and on-premise deployment options
  • Support for multiple programming languages
  • User-Agent Client Hints support
What makes it different
  • Built on TypeScript SDK for integration with Node.js projects
  • Works anonymously without API key
  • Supports self-hosted installations via KIVEL_URL
  • Fifteen years of expertise in device detection with proprietary data
  • Open source approach with published API source code
  • Flexible deployment with both cloud and on-premise options
  • Extensible Pipeline API for aggregating micro services
  • Freemium model with free tier offering 10,000 monthly requests
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)Not checked yet no change since last check64 no change since last check
Trust Flow (Majestic)017
Citation Flow (Majestic)043
Referring domains (Majestic)0398

6 details filled in for both companies.

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