Can an agent pay with Exa search (x402)?
YESSearch and contents endpoints payable per request in USDC with no API key. Verified live: unpaid POST /search returns HTTP 402 offering x402 (and an MPP "Payment" challenge).
Proof
“This is ideal for AI agents that need to autonomously pay for web search without pre-provisioned credentials.”
Details
- Verdict
- Yes: there is a documented way for an agent to pay with no human per payment.
- Kind
- api
- Rails
- x402, mpp, stablecoin
- Last checked
- 2026-10-18
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