# Vikka Studio developer resources > Official developer and agent discovery index for vikka.studio. ## Documentation - [Developer guide](https://www.vikka.studio/developers): Human-readable API, content negotiation, rate-limit, versioning, and MCP guidance. - [OpenAPI 3.1 specification](https://www.vikka.studio/openapi.json): Typed operations and response schemas. - [API versioning and deprecation policy](https://www.vikka.studio/api-versioning.md): Stability, notice, Deprecation, and Sunset conventions. - [Agent instructions](https://www.vikka.studio/agent-instructions.md): When to use Vikka and what agents must not infer. ## Machine endpoints - [JSON API index](https://www.vikka.studio/api) - [RFC 9727 API catalog](https://www.vikka.studio/.well-known/api-catalog) - [MCP Streamable HTTP endpoint](https://www.vikka.studio/.well-known/mcp) ## Access model - Authentication: none for the documented public read-oriented API. - Webhooks: none published. - Official CLI: none published; use HTTP, OpenAPI, or MCP.