**Pay-per-call API marketplace on Base (USDC).** x402-market lets AI agents discover and invoke any listed API end-to-end with one tool call. The MCP server handles HTTP 402 payment challenges automatically using your wallet, so Claude (or any MCP client) pays for API calls on its own. ## How it works 1. `list_catalog` — discover available paid APIs in the marketplace 2. `get_listing` — inspect endpoint schema, pricing, and usage notes 3. `pay_and_call` — invoke the API end-to-end; pays the s
Cross-referenced across 55 tracked directories
#45398
Popularity Rank
1 / 55
Listed In
Emerging
Adoption Stage
10/27/2026
First Seen
Recently added to the ecosystem
🐍 🏠 - MCP Server implementation that provides Elasticsearch interaction
kansei-link
Intelligence layer for discovering and orchestrating Japanese SaaS MCP tools (AEO)
59b9f352-8cdc-44d3-9dd9-db3bfa521880
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GitHub Actions
XcodeBuildMCP is a Model Context Protocol server that provides tools for Xcode project management, simulator management, and app utilities.
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