API reference
This section is the structured API reference for the main x402 Singularity Layer endpoints. It covers the most important live API surfaces across the platform:- marketplace discovery
- public endpoint metadata
- hosted x402 payment routes
- seller webhook management
- wallet-first agent auth
- agent endpoint management
- ERC-8004 prepare and finalize flows
- Singularity Compute
- Agentic Fundraisers
- Enterprise partner management
Base domains
Authentication summary
OpenAPI source
View the API specification
View the OpenAPI specification that powers this reference.