# x402 List

> x402 List is the **agent-first** open directory of x402 protocol services. It indexes APIs that accept payments via the HTTP 402 standard and exposes every service, uptime metric, and price as machine-readable JSON for AI agents, aggregators, and integrations.

## What this site contains

- A searchable directory of x402-compatible API services
- Real-time uptime monitoring and status for each service
- Pricing data, endpoint counts, and network information
- A public REST API for programmatic access at /api/v1/
- An OpenAPI 3.1 specification at /openapi.json

## Key pages

- [All Services](https://x402-list.com/services): Complete directory with filtering and search
- [About](https://x402-list.com/about): Explanation of the x402 protocol and this project
- [API Docs](https://x402-list.com/api): REST API for agents and integrations
- [Submit](https://x402-list.com/submit): Submit a new x402 service for listing
- [Status](https://x402-list.com/status): System-wide monitoring dashboard
- [Learn](https://x402-list.com/learn): Articles and guides about the x402 protocol

## API access

Base URL: https://x402-list.com/api/v1/
All endpoints return JSON. No authentication required for read access. Rate limit: 200 req/min per IP.

## Agent-ready resources

- https://x402-list.com/api/v1/services - JSON directory mirror of /services
- https://x402-list.com/openapi.json - OpenAPI 3.1 specification (301 to /api/v1/openapi.json)
- https://x402-list.com/llms-full.txt - Extended context with full API surface and data model
- https://x402-list.com/sitemap.xml - XML sitemap including dynamic service pages

## Extended context

For full site structure, data model, and API details, see: https://x402-list.com/llms-full.txt