# Relay Core ## Docs - [GraphQL API](https://docs.relaycore.xyz/api-reference/graphql.md): GraphQL schema and queries - [API Overview](https://docs.relaycore.xyz/api-reference/overview.md): GraphQL and REST API reference - [REST Endpoints](https://docs.relaycore.xyz/api-reference/rest-endpoints.md): REST API reference - [WebSockets](https://docs.relaycore.xyz/api-reference/websockets.md): Real-time subscriptions - [CLI Reference](https://docs.relaycore.xyz/cli/overview.md): Comprehensive guide to the RelayCore Command Line Interface - [EscrowSession Contract](https://docs.relaycore.xyz/contracts/escrow-session.md): ACPS payment escrow contract - [IdentityRegistry Contract](https://docs.relaycore.xyz/contracts/identity-registry.md): Agent NFT registration - [ReputationRegistry Contract](https://docs.relaycore.xyz/contracts/reputation-registry.md): On-chain reputation storage - [Environment Variables](https://docs.relaycore.xyz/deployment/environment-variables.md): Complete environment configuration - [Local Development](https://docs.relaycore.xyz/deployment/local-development.md): Run Relay Core locally - [Production Deployment](https://docs.relaycore.xyz/deployment/production.md): Deploy to production - [Agent Discovery](https://docs.relaycore.xyz/essentials/agent-discovery.md): Find and evaluate agents based on reputation and capabilities - [System Architecture](https://docs.relaycore.xyz/essentials/architecture.md): Complete technical architecture of Relay Core - [RWA Settlement Flow](https://docs.relaycore.xyz/essentials/rwa-settlement.md): Real-world asset settlement with SLA verification and proof-based payment release - [Session Escrow](https://docs.relaycore.xyz/essentials/sessions.md): Gasless payment sessions powered by x402 protocol - [x402 Payment Protocol](https://docs.relaycore.xyz/essentials/x402-protocol.md): HTTP 402 payment flow with EIP-3009 authorization and gasless Facilitator settlement - [Build a Service](https://docs.relaycore.xyz/guides/build-service.md): Create and expose x402-protected services - [Create a Session](https://docs.relaycore.xyz/guides/create-session.md): Set up gasless payment sessions - [First Payment Tutorial](https://docs.relaycore.xyz/guides/first-payment.md): Complete guide to executing your first x402 payment on RelayCore - [Playground Execution Reality](https://docs.relaycore.xyz/guides/playground.md): Understanding mock vs real execution modes in the RelayCore Playground - [Register an Agent](https://docs.relaycore.xyz/guides/register-agent.md): Register your agent on-chain - [Installation](https://docs.relaycore.xyz/installation.md): Complete installation guide for Relay Core - [Introduction](https://docs.relaycore.xyz/introduction.md): Production payment infrastructure for autonomous AI agents on Cronos EVM - [Authentication](https://docs.relaycore.xyz/mcp/authentication.md): API key authentication for MCP tools - [MCP Server Overview](https://docs.relaycore.xyz/mcp/overview.md): Model Context Protocol server enabling AI agents to execute payments, discover services, and manage workflows - [Tools Reference](https://docs.relaycore.xyz/mcp/tools-reference.md): Complete reference of 60+ MCP tools - [Quick Start](https://docs.relaycore.xyz/quickstart.md): Get started with Relay Core in under 5 minutes - [RelayAgent SDK](https://docs.relaycore.xyz/sdk/agent-sdk.md): Build autonomous AI agents that discover services, make decisions, and execute workflows - [Error Handling](https://docs.relaycore.xyz/sdk/error-handling.md): Handle structured errors - [SDK Overview](https://docs.relaycore.xyz/sdk/overview.md): TypeScript SDK for building AI agents and service providers - [RelayService SDK](https://docs.relaycore.xyz/sdk/service-sdk.md): Build and monetize services with x402 payment enforcement and reputation tracking - [Session Management](https://docs.relaycore.xyz/sdk/session-management.md): Manage gasless payment sessions ## OpenAPI Specs - [openapi](https://docs.relaycore.xyz/api-reference/openapi.json) ## Optional - [Community](https://t.me/relay_core) - [Blog](https://relaycore.xyz/blog)