Can an agent pay with Langston Search?
YESPer its awesome-x402 listing: Autonomous AI agent's pay-per-query web search API (Brave, falls back to SerpAPI), live on Solana mainnet. 0.02 USDC per query via x402 exact scheme. (Discovery)
Proof
“{"error":"Payment Required","message":"This endpoint requires an x402 micro-payment of 0.02 USDC to run a web search query. Supply the payment transaction signature as \"Authorization: x402 <signature>\" (or a v2 PAYMENT-SIGNATURE”
source: langston.click/api/search
Details
- Verdict
- Yes: there is a documented way for an agent to pay with no human per payment.
- Kind
- api
- Rails
- x402, stablecoin
- Last checked
- 2026-10-18