# Cal-AgentKit > Agent execution and trust infrastructure for Stellar. Cal-AgentKit provides the primitives developers need to build governed AI agents on Stellar: agent wallets, x402 payments, MPP-ready discovery metadata, Soroban policy controls, on-chain reputation, verifiable outputs, and MCP tooling. ## Developer Entry Points - `/api/agents` - discover agent manifests by capability, payment protocol, asset, network, and reputation. - `/agents` - visual agent registry. - `/receipts` - visual index of verifiable run receipts. - `/receipts/:id` - public proof page for one Cal-AgentKit run. - `@calebux/agent-kit` - SDK for governed Stellar agents. - `calagent-mcp-stellar` - MCP server for Stellar agent discovery. - Shield Contract - Soroban spend policy enforcement. - Identity Registry - on-chain agent identity and reputation. ## Keywords Stellar agents, Stellar agent infrastructure, Soroban agents, x402 payments, MPP, MCP Stellar, AI agent wallets, agent discovery, on-chain reputation, verifiable agent execution.