# PrivChain > x402-compatible privacy infrastructure for agent-to-agent and agent-to-service payments. Canonical site: https://privchain.io Sitemap: https://privchain.io/sitemap.xml Robots: https://privchain.io/robots.txt ## Primary Pages - Homepage: https://privchain.io/ - API surface: https://privchain.io/api.html - Developer status: https://privchain.io/developers.html - Resources: https://privchain.io/resources.html - Security summary: https://privchain.io/security.html - FAQ: https://privchain.io/faq.html - Signup funnel: https://privchain.io/signup.html - Architecture: https://privchain.io/architecture.html - Mission: https://privchain.io/mission.html - Contract economy: https://privchain.io/contract-economy.html - Privacy policy: https://privchain.io/privacy.html - Terms of use: https://privchain.io/terms.html ## Markdown Corpus (AI-friendly) - Overview: https://privchain.io/ai/overview.md - API surface: https://privchain.io/ai/api-surface.md - Integration guidance: https://privchain.io/ai/integration.md - Security and operations: https://privchain.io/ai/security-and-operations.md - Full consolidated context: https://privchain.io/llms-full.txt ## Scope and Boundaries - Public content is interface-level and partner-readiness level. - Launch-critical internals (proof internals, anti-abuse thresholds, production runbooks) are intentionally withheld pre-release. - Analytics is consent-gated; essential functionality remains available without analytics consent.