# Developer Portal Index (developers/llms.txt) > Developer portal, APIs, MCP server, authentication guides, and sandbox environment for esgabrielweb.com. - Portal: [https://esgabrielweb.com/developers](https://esgabrielweb.com/developers) - OpenAPI Specification: [https://esgabrielweb.com/openapi.json](https://esgabrielweb.com/openapi.json) - Agent Usage Instructions: [https://esgabrielweb.com/agents.md](https://esgabrielweb.com/agents.md) - Authentication Guide: [https://esgabrielweb.com/auth.md](https://esgabrielweb.com/auth.md) - Model Context Protocol (MCP): [https://esgabrielweb.com/wp-json/mcp/mcp-adapter-default-server](https://esgabrielweb.com/wp-json/mcp/mcp-adapter-default-server) - Sandbox Mode: [https://esgabrielweb.com/api?sandbox=true](https://esgabrielweb.com/api?sandbox=true)