API & server registries
x402 List
A directory of x402 services with a public JSON discovery API, endpoint metadata and integration documentation.
Provider: x402 List. Editorial listing by Gateway; not an owner claim.
Visit official destination ↗- Best suited to
- Making an x402 service discoverable to agents
- Owner next step
- Prepare accurate endpoints, payment terms and documentation before suggesting your service.
- Access
- Anonymous read API; paid services have separate terms
- Cost
- Free plan. Directory reads are free. Submission fees can apply under current rules; some assessment tools and listed services are paid.
- Interfaces
- REST · OpenAPI · MCP
- Source evidence
- Official public source · checked 2026-10-01. This is a description review, not an execution or compatibility test.
- Listing requirements
- A service must expose valid x402 payment responses on its protected endpoints and pass review. Hosting and resubmission rules can trigger fees; check the current submission page.
- Traffic and availability
- Not monitored. Bot visits, citations, uptime and successful delivery have not been measured by this directory.
Read submission requirements ↗
Listing content is informational. Inclusion does not authorize installation, changes to your site, or payment. Check current provider terms and access policies.