# INSIDE Gateway business API > Application REST, Business MCP and A2A tasks for confidential custom installations, with explicit site grants and current data permissions. Source capabilities only; no inventory or grant. Matching native bundles and loaded-site readiness need separate verification. Use an expiring least-privilege installation credential. Every call rechecks current installation, credential, organization, website and data policy. Customer agents, general reports and agent reasoning remain unavailable. ## Machine-readable entry points - [Application OpenAPI](https://api.inside.chat/api/v1/openapi.json): Current installation REST paths, parameters, scopes and data flags. - [OAuth authorization server metadata](https://api.inside.chat/.well-known/oauth-authorization-server): Confidential client exchange and revocation; supported scopes. - [MCP protected resource metadata](https://api.inside.chat/.well-known/oauth-protected-resource/mcp): Exact MCP audience and authorization server. - [REST protected resource metadata](https://api.inside.chat/.well-known/oauth-protected-resource): Exact REST audience and supported scopes. - [A2A agent card](https://api.inside.chat/.well-known/agent-card.json): Structured scoped report, evidence, configuration and offline language tasks. - [A2A protected resource metadata](https://api.inside.chat/.well-known/oauth-protected-resource/a2a): Exact business task audience. - [Full business API guidance](https://api.inside.chat/llms-full.txt): Transport, supported operations, reporting, resources, prompts and write recovery.