Search x402 APIs

Paid APIs an AI agent can call with x402. Burnbound checks each one every 6 hours without paying: it must answer a valid x402 challenge, on the host listed here, in USDC on Base or Base Sepolia. Prices are per call.

4 APIs · No paid placements: the list is alphabetical. A listing never lets an agent pay an API; its policy decides.

Exaapi.exa.ai
Semantic web search built for agents.
Search · Base · fixed
from 0.007 USDC✓ verified Oct 5, 2026
Tavilyx402.tavily.com
Web search with a summarized answer.
Search · Base · rotating
from 0.01 USDC✓ verified Oct 6, 2026
x402 Atlas Web Searchwebsearch.use.x402atlas.com
Web search within the x402 Atlas catalog.
Search · Base · fixed
from 0.01 USDC✓ verified Oct 6, 2026
You.comapi.you.com
Web and news search.
Search · Base · fixed
from 0.005 USDC✓ verified Oct 6, 2026

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