Currency API vs naulon

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

Currency API compared with naulon
Detail	Currency API	naulon
What it does	Real-time Currency Conversion API for developers	Get paid when AI reads your work
Stage	Established	Not given
Founded	2019	Not given
Based in	GB	Not given
Pricing model	Freemium	Freemium
Pricing	Not given	Single site: free. Studio: free until agents have paid you $50, then $19/month (or yearly at 15% discount). Enterprise: custom pricing. Per paid read: 10% operator fee on top of your price, paid by the agent.
Key features	Live exchange rates for 166 currencies JSON and XML response formats Historical data back to year 2000 API Playground for testing requests Analytics and monitoring dashboard Team management and API key management IP whitelisting and blacklisting SDKs for multiple programming languages Multiple API endpoints including convert and timeframe	HTTP 402 toll gate for AI agents Direct USDC settlement to author wallet Set custom read price and citation multiplier Multiple enforcement methods (DNS, Cloudflare, in-app) Real-time dashboard with earnings and activity Settlement on Arc network using x402 standard Co-author payment splitting at settlement
What makes it different	330 edge locations worldwide for ultra-low latency Handles over 50 million monthly requests 99.9% uptime guarantee Average response time of ~50 milliseconds Free plan available for hobby projects and open-source	Custody-free payments: money goes directly from buyer to author, never held by naulon Open source toll gate that can run on your own server Studio free until agents pay you $50
Free plan	Not given	Not given
Open source	Not given	Not given
Platforms	Not given	Not given
Public API	Not given	Not given
Community votes	0	0
DR (Domain Rating by Ahrefs)	35 no change since last check	6 +6 (up) since last check
Trust Flow (Majestic)	17	0
Citation Flow (Majestic)	32	17
Referring domains (Majestic)	306	5

4 details filled in for both companies.

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