Pay-per-call primitives for AI agents, .01 USDC per call on Base via x402, no API key or account. Wallet & token risk screening (OFAC sanctions, scam/phishing lists, honeypot/tax/mint signals, PROCEED|CAUTION|BLOCK verdict), mutable-token-risk (can the owner still rug?), live web search, URL scrape to markdown, structured extraction, embeddings, and LLM completions.