# ABAP Model Context Protocol Server SDK

An ABAP implementation of the Model Context Protocol server side, letting an SAP system expose prompts, resources and tools to an MCP client without server-sent-event features such as notifications.

This SDK implements the Model Context Protocol server role in ABAP, supporting protocol versions up to 2025-11-25; a separate, newer SDK covers later protocol releases. Because the maintainer sees no realistic way to support server-sent-event streaming, which the MCP client role requires, it only implements a server.

Implemented features include prompts, resources, tools with optional output schemas and task-augmented execution, long-running background tasks with client polling, autocomplete for prompt and resource-template arguments, and schema generation from ABAP's data dictionary alongside a JSON schema builder and validator. Because it has no server-sent-event support, it has no notifications, subscriptions or logging over the protocol, and it does not implement sampling, elicitation or roots.

It builds on other open-source ABAP projects for JSON handling, linting and source control, and authentication is left to whatever an S/4HANA release makes feasible, with OAuth suggested where possible.

Website: https://github.com/abap-ai/mcp