PayAPI
@payapi.market
x402 marketplace of pay-per-call APIs for AI agents. Pay per request in USDC on Base, no keys. Listing is free, providers keep 100%. 239 live APIs.
PayAPI's Company Logos
PayAPI's Brand Colors
Hex Code
Color name
RGB
HSL
CMYK
#00D4FF
Cyan / Aqua
0, 212, 255
190, 100, 50
100, 17, 0, 0
#06080D
Bunker
6, 8, 13
223, 37, 4
54, 38, 0, 95
#FFE0A2
Cream Brulee
255, 224, 162
40, 100, 82
0, 12, 36, 0
About PayAPI
PayAPI Market is an x402 marketplace that helps AI agents discover and use APIs through pay-per-request payments. Built for the agent economy, it connects to an MCP server so compatible clients can find listed APIs through a single integration. Agents pay in USDC on Base for the calls they make, without API keys, accounts, or monthly subscriptions. The marketplace lists APIs across areas including property, weather, company information, vehicles, finance, licensing, waste collection, air quality, and text analytics.
Providers can list APIs for free and keep 100% of the revenue earned from calls. PayAPI Market describes itself as a discovery platform: payments take place at the API endpoint rather than on the marketplace. Listings are checked through provider challenges, while settlement-verified status indicates that PayAPI Market has made a test payment and received a product response. The service also offers a revenue calculator, pricing information, and educational resources for providers. Its goal is to make individual API functions easy for AI agents to find, pay for, and use as needed.
Brand industry
Computers Electronics and Technology
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