Question 1

What is x402 protocol?

Accepted Answer

x402 is an open protocol that implements HTTP 402 Payment Required. APIs return a 402 status with payment details, and compatible clients automatically settle micro-payments in USDC on Base L2 — sub-cent fees, instant finality. No API keys, no subscriptions required.

Question 2

How much does MoonMaker API cost?

Accepted Answer

Trading signals cost $0.05 per call, market overview costs $0.10 per call, ETF flows cost $0.02 per call. Health check and stats are free. Payments are handled automatically via x402 protocol using USDC on Base L2.

Question 3

Do I need an API key?

Accepted Answer

No API key is required. MoonMaker uses x402 protocol for authentication and payment. Just make an HTTP request — payment is handled automatically at the protocol level using USDC on Base L2.

Question 4

Which cryptocurrencies are supported?

Accepted Answer

MoonMaker currently supports Bitcoin (BTC), Ethereum (ETH), and Solana (SOL). All signals are generated using a 25-indicator scoring system updated every 15 minutes.

Question 5

How accurate are the trading signals?

Accepted Answer

Performance metrics are available for free at /stats endpoint. Current 24-hour expectancy is positive with 68% win rate and 15.2% alpha vs buy-and-hold. All metrics are publicly verifiable.