Question 1

What is the x402 protocol?

Accepted Answer

x402 is an open standard from Coinbase that lets AI agents pay for online services without human approval, using crypto wallets (USDC mostly) on chains like Base, Solana, and Stellar. It's HTTP status 402 · Payment Required · turned into a machine-to-machine transaction protocol.

Question 2

What is an AI agent in this context?

Accepted Answer

An AI agent is an autonomous program that has been given a crypto wallet and the right to spend on its own. It can call APIs, buy compute, pay other agents · without a human clicking pay each time.

Question 3

Why are most of the wallets anonymous?

Accepted Answer

x402 was designed so that the service identity sits in HTTP headers, not on-chain. As a result, 99% of merchant wallets receiving x402 payments have no public label. We identify them by behavior, not identity.

Question 4

How accurate is lookx402 data?

Accepted Answer

We index every public x402 transaction on Base mainnet directly from the blockchain. Data is exact within the latest 5-minute cron window. We don't rely on third-party feeds.

Question 5

Can I export the data or get alerts?

Accepted Answer

An API and alert system are coming. The X account @lookx402 already publishes anomaly alerts daily.

Question 6

What about Solana and Stellar?

Accepted Answer

Base mainnet is live now (89% of x402 volume). Solana and Stellar indexing is on the roadmap.