Marketplace Fee Data API vs Nuvinty API

Two free Shopping APIs compared on access, reliability and developer ratings, using data from our daily health checks.

The verdict

Choose Marketplace Fee Data API if its data fits your use case better; on access and reliability it's level with Nuvinty API.
Choose Nuvinty API if its data fits your use case better; on access and reliability it's level with Marketplace Fee Data API.

	Marketplace Fee Data API	Nuvinty API
What it does	Seller fee schedules for 21 e-commerce marketplaces and payment processors as JSON.	UK luxury list prices, price history, increases and partner pre-owned asking prices.
Provider	SellersCalc — E-commerce Calculators	Nuvinty
API key	Not needed	Not needed
HTTPS	Yes	Yes
CORS (browser calls)	Yes	Yes
Status today	Online · 806 ms	Online · 977 ms
Uptime (30 days)	Up	Up
Developer rating	Not rated yet	Not rated yet
Price	Free / free tier	Free / free tier

Seller fee schedules for 21 e-commerce marketplaces and payment processors as JSON.

Free JSON API of marketplace and payment fee schedules — Amazon, eBay, Etsy, PayPal, Stripe and 16 more platforms. CC BY 4.0, no key, CORS enabled.

Strengths

UK luxury list prices, price history, increases and partner pre-owned asking prices.

Free, read-only, no-login access to UK luxury list prices, price history, price rises, partner pre-owned asking prices, UK import-cost estimates…

Strengths

Prototyping or a tutorial? Pick the one that needs no API key (both qualify).
Calling from a web page? You need CORS. Otherwise route requests through your own server or a serverless function.
Going to production? Favour HTTPS, a strong uptime record and a provider with clear rate limits and terms. Check each API's docs before you commit.
Still unsure? Both are free to try: send one request to each and compare the data you get back.

Neither needs an API key; you can call both straight away.