# PayAPI - **Website:** - **Primary alias:** `payapi.market` ## Description 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. ## Industries - 🖥 Computers Electronics and Technology - 🖥 Blockchain and Cryptocurrency _(under Computers Electronics and Technology)_ ## Logos & icons - logo _(primary)_ — PNG, SVG — [download](https://cdn.brandfetch.io/idIqPhFxhg/w/820/h/820/theme/dark/logo.png?c=1bxid64Mup7aczewSAYMX&t=1790722744196) ## Colors | Name | Hex | Theme | | --- | --- | --- | | Cyan / Aqua | #00d4ff | accent | | Bunker | #06080d | dark | | Cream Brulee | #ffe0a2 | light | --- _Source: _ _See [/llms.txt](/llms.txt) for a full list of agent-readable pages, and [/auth.md](/auth.md) for how agents authenticate._