When an AI agent does not know which page holds the answer, it needs search plus extraction in one call — with sources it can show. SML Web Research does exactly that, priced per call.
Measured live on 2026-10-15
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GET /api/web/research/once?q=x402+protocol→ HTTP 402 in 0.81 s, quoting $0.003 (3,000 atomic USDC, Base mainnet) for one search-and-extract shot. -
GET /api/web/research/info→ HTTP 200, free: limits and terms inspectable before spend. - Retrieval failure is returned as failure. It is never replaced with invented citations.
- Every accepted call settles over x402 and returns a PAYMENT-RESPONSE receipt.
Honest comparison
Tavily, Valyu and Olostep own this category's mindshare, and Tavily's search API is mature with deep integrations — at platform scale, that maturity wins. This route is the agent-loop primitive: one query in, source-backed evidence out, $0.003, no API key, no subscription. And if the URL is already known, skip search entirely — a direct Markdown read costs $0.001.
Full evidence and claim receipts: the canonical link on this article.
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