Question 1

Which is better, 0x or Subscriptions API (v3)?

Accepted Answer

Both are solid Cryptocurrency APIs. Choose based on your specific requirements. 0x uses no authentication while Subscriptions API (v3) uses apiKey.

Question 2

What is the main difference between 0x and Subscriptions API (v3)?

Accepted Answer

0x: API for querying token and pool stats across various liquidity pools. Subscriptions API (v3): 
A **Subscription** is a list of items (SKUs) tied to certain recurring purchase settings:

- User profile
- Address
- Payment method
- Frequency
- Cycle

Once you have [configured subscri.... They differ in authentication (no authentication vs apiKey), HTTPS support (yes vs yes), and CORS (yes vs unknown).

Question 3

Which Cryptocurrency API is easier to integrate?

Accepted Answer

0x is easier to integrate because it requires no authentication.

Feature	0x	Subscriptions API (v3)
Authentication	None	apiKey
HTTPS	Yes	Yes
CORS	Yes	Unknown

0x vs Subscriptions API (v3)

0x

Subscriptions API (v3)

When to use which?