Person
Marian Zeis
Capabilities
Provides
Agent guidanceBTPCAPUI5ABAPAgent guidancePackaged knowledge you hand a coding agent so it gets a framework right unprompted — skills, rule files, instruction packs. Distinct from agent tooling, which is about building agentic features into your application, and from [agent access to your code](capability:agent-code-access), where the agent reads the real project instead of being handed a file about it.Architecture diagramsBTPArchitecture diagramsDrawing the architecture and components of a solution so another person can understand their responsibilities and connections. Shared notation makes diagrams readable across teams.AuthenticationBTPCAPABAPUI5AuthenticationEstablishing who is calling: validating credentials or tokens, resolving the user, and making that identity available to the application. [Authorization](capability:authorization) decides what that identity may do; [identity provisioning](capability:identity-provisioning) manages its lifecycle across systems.DocumentationBTPCAPUI5ABAPDocumentationFinding the answer in what has already been written, and writing it where it has not — first-party documentation made searchable by something other than a person scrolling it, including by an agent, and a document of custom code produced from the code itself.Serve your application over MCPBTPCAPABAPServe your application over MCPExposing selected application data and business operations to an AI agent through the Model Context Protocol. An application may also integrate remote services through [service integration](capability:service-integration), connecting its exposed contract with [agent access to your systems](capability:agent-systems-access). Development assistance belongs to [agent access to your code](capability:agent-code-access).Tool governanceBTPCAPABAPTool governanceControlling what an agent may call, with which authorisations, and leaving an audit trail of what it did. The authorisation question that MCP exposure raises but does not answer.
Contributes to
Agent access to your codeBTPCAPABAPUI5Agent access to your codeLetting a coding agent read the project or the system you actually have, reach its model, its objects and its checks, and act on it. In file-based environments that works out of the box; complex systems need dedicated access capabilities. Whatever the environment, the agent also needs project- and framework-specific context, so it understands the thing in front of it rather than guessing from what it remembers of its training data. The transport is incidental: an MCP server, a language server or a CLI answer the same question, and what differs between them is how much of the real thing the agent can see. Distinct from [MCP servers](capability:mcp-servers), which is a protocol adapter on your own running service, and from [agent guidance](capability:agent-guidance), which is knowledge handed over as files rather than read from the thing itself.Agent access to your systemsBTPABAPCAPAgent access to your systemsGiving an AI agent access to the business data, configuration or operations of systems you run through an MCP server. [Serving your application over MCP](capability:mcp-servers) exposes your own service contract; system access reaches the systems behind it, and one implementation may do both. Development assistance belongs to [agent access to your code](capability:agent-code-access).Analytic modellingBTPABAPAnalytic modellingDefining what an analytical client actually reads — the multi-dimensional layer between stored rows and a chart: measures, dimensions, hierarchies, filters and parameters, and the associations somebody navigates them by. Distinct from [analytical queries](capability:analytical-queries), which is a service answering the request a chart sends, and from [loading a warehouse](capability:warehouse-loading), which fills the tables underneath it.Loading a warehouseBTPABAPLoading a warehouseGetting data into an analytical store and keeping it current — connections to source systems, replication and the other integration tasks, import jobs and their lifecycle, and the monitoring that tells you a load failed before a report does. Distinct from [replication](capability:replication), which is an application reading data that lives elsewhere as if it were local rather than a warehouse being filled.
Entries
Group by13 of 13 entries
EntrySignals
Maintains
@arc-mcp/xsuaa-auth@arc-mcp/xsuaa-authThe client-to-server authentication stack for an MCP server on SAP BTP: an XSUAA OAuth proxy, dynamic client registration, a chained bearer verifier, and a separate entrypoint for per-user principal propagation.independent, btp
It stops at the `AuthInfo` and the raw bearer token, and the README lists what stays with the consuming server: rate limiting, the scope and tool policy, the MCP transport, the SAP HTTP client's headers, and helmet-style hardening. The one piece of hardening it constrains rather than defers is the cross-origin opener policy, which it deliberately leaves unset because popup-based OAuth breaks under it. It is ESM-only on Node 22 or later and shares the host's Express and MCP SDK instances as peer dependencies, so a server on Express 4 cannot take it.
XSUAA authentication stack for an MCP server on SAP BTP
@marianfoo/sap-mcp-auth@marianfoo/sap-mcp-authA shared browser-login and session module for SAP MCP servers: it drives a Playwright browser through SAP Identity Authentication, caches the session cookies and returns a cookie header an HTTP client can send.independent, btp
The maintainer states it is unofficial, not endorsed by SAP, and that it automates authenticated SAP web endpoints and browser session cookies in ways SAP's terms of service or an organisation's own policies may restrict. Password login is confined to `accounts.sap.com` and the standard SAP Cloud Identity Services tenant domains: a custom IAS domain, or a login that conditional authentication delegates to a corporate identity provider, fails closed before the password is filled and has to be completed through an interactive login instead.
Browser login and session module for SAP MCP servers
mcp-sap-docsmcp-sap-docsAn MCP server over seventeen cloned SAP documentation repositories — ABAP keyword docs, capire, OpenUI5, Cloud SDK, BTP — searched with BM25 and prebuilt embeddings fused by reciprocal rank fusion.independent, cap
It reads documentation, never a system: nothing in it opens a package.json, a CDS model or an ABAP client, so a question about what your own project does has to be answered elsewhere. The offline half is only as fresh as the submodules the last build pinned, and the index answers where something is written down rather than which of two packages fits a task.
MCP server searching seventeen SAP documentation repositories
SAP API Policy Evidence SkillSAP API Policy Evidence SkillAssesses whether a described SAP API usage aligns with the SAP API Policy, gathering live evidence from SAP's own sources and returning a sourced assessment with a stated confidence — and routing the legal questions away from itself.independent, btp
It says so itself, in bold, and the atlas repeats it: not legal advice and not a compliance decision. Only SAP, your contract, or SAP support can answer bindingly, and the skill routes legal, commercial and roadmap questions there rather than guessing at them. Treat the output as evidence gathered, not as a verdict.
Skill assessing API usage against the SAP API Policy
sap-api-hub-mcpsap-api-hub-mcpA read-only MCP server over the SAP Business Accelerator Hub catalogue: categories, search, metadata, resources, specs and packages, reached as the caller's own SAP user.independent, btp
The maintainer states it is unofficial, not endorsed by SAP, and that it uses authenticated Hub web and catalogue endpoints and browser session cookies in ways SAP's terms of service, SAP account terms or an organisation's own policies may restrict. The same README asks the reader not to use it for production, broad distribution or shared access without explicit approval, and says that installing it grants no permission to automate SAP services.
Read-only MCP server over the SAP Business Accelerator Hub
sap-architecturesap-architectureA Claude Code plugin and portable agent skill that turns a plain-English description into a BTP diagram in SAP Architecture Center style, checked by a validator before it is handed over.independent, btp
A diagram of anything other than an SAP, BTP or on-premise landscape: the skill is tuned to the Horizon style and its 71 templates. It drafts rather than finishes, and its README budgets 15 to 30 minutes of edits in draw.io per diagram. Without Python the validator does not run.
Claude Code plugin and skill drawing validated BTP diagrams
sap-note-search-mcpsap-note-search-mcpAn MCP server over SAP Notes and Knowledge Base articles: search finds a note, fetch returns it whole, and a scripted browser does the S-user login the content sits behind.independent, btp
It needs an S-user with SAP Support Portal access, so there is nothing to search without a support contract behind the login. The maintainer states it uses private SAP APIs behind authentication, asks the reader to check whether that use breaches SAP's terms of service, and disclaims both liability and any guarantee that it keeps working. MFA is handled only by typing the code into a visible browser, so a headless deployment cannot complete a login that demands one.
MCP server searching and fetching SAP Notes and KBAs
sap-roadmap-mcpsap-roadmap-mcpAn MCP server over SAP Road Map Explorer, so an agent can read what SAP has announced as planned rather than inferring it from a release that has shipped.independent, btp
What it returns is planning material, not a commitment, and the monorepo labels the server's role "future/planned features (planning only)". The maintainer also states it is unofficial, not endorsed by SAP, and that it uses authenticated Road Map Explorer web endpoints and browser session cookies in ways SAP's terms of service or an organisation's policies may restrict, with production, broad distribution and shared access called out as needing explicit approval. An account that requires MFA has to be bootstrapped once through a visible browser.
MCP server over SAP Road Map Explorer
Maintains: samples, sketches and references
btp-cf-mcpbtp-cf-mcpAn MCP server over an SAP BTP account and its Cloud Foundry runtime that acts as the person who logged in, so their own global-account and space roles decide what an agent can see.independent, btp
MCP server for SAP BTP and Cloud Foundry acting as the logged-in user
Contributes to
arc-mcp-hubarc-mcp-hubA hub on SAP BTP that puts several arc-1 instances, one per SAP system, behind one login and a route each, exchanging the caller's token through a destination so each system still sees the real user.independent, btp
Archived The declared repository is archived.
Functional boundary With one SAP system the README says to point the client at that arc-1 directly. Version 1 exchanges tokens within a single subaccount, so backends spread across subaccounts are out; it keeps its session map in memory, so more than one instance needs sticky sessions or a shared store. It routes deterministically and runs no model, which is a different thing from an assistant that reasons across systems. The `/all` endpoint drops the per-connection isolation, and the maintainer's answer to that is a PROD backend set read-only at the SAP end rather than a tool surface that hides the writes.
Hub on SAP BTP putting several arc-1 instances behind one login
btp-sap-odata-to-mcp-serverbtp-sap-odata-to-mcp-serverExposes every OData service on an S/4HANA or ECC system as MCP tools, in three discovery levels so a large catalogue does not have to be loaded at once.independent, btp
It puts create, update and delete on business entities behind natural language. Whatever the destination's principal may change, an agent may change — and "create a new customer" is a sentence, not a form somebody signed off.
Exposes S/4HANA or ECC OData services as MCP tools
bw-modeling-mcpbw-modeling-mcpReads, creates and modifies BW/4HANA modelling objects through the same internal APIs Eclipse BWMT and the BW/4HANA Cockpit use — and can run centrally on BTP with each caller reaching BW as themselves.independent, btp
Its README says it plainly and so does this entry: this is not a simulation, every tool call reaches a live BW system, and write operations produce real changes. BW modelling objects are the definition of a warehouse — the blast radius of a wrong one is every report built on it.
MCP server for BW/4HANA modelling objects
calmcpcalmcpAn MCP server in front of the SAP Cloud ALM APIs: four read tools over tasks, projects, features, documents, tests and analytics, run over stdio locally or Streamable HTTP on Cloud Foundry.independent, btp
MCP server with read tools over the SAP Cloud ALM APIs
Writing and topics
12 of 12 pieces
Piece, what it offersStill applies
AI-assisted SAP development with MCPAI-assisted SAP development with MCPA Devtoberfest 2026 session (UI-41) that traces AI-assisted SAP development from pasting code into a chat window to coding agents with built-in connectors, and sorts the MCP servers around SAP development into SAP's own, the community's and the hosted ones, where the agent cannot change what the server allows. Four demos follow: GitHub Copilot alone explaining an ABAP report from a Git repository, @ui5/mcp-server reading an OpenUI5 sample app and converting it to TypeScript, mcp-sap-docs grounding Terraform files for a BTP subaccount the presenter had not written before, and arc-1 with Copilot in Eclipse tracing why a title longer than 40 characters is rejected and proposing the DDIC-allowed length instead. It ends on a skill that migrates an SAP Gateway project on an ECC system to RAP on S/4HANA step by step, and on a rule Marian Zeis gives for servers written for internal use: keep them read-only, because what the agent is short of is context.published 2026-10-16
Creating an ARC-1 BTP Diagram with Codex and a draw.io SkillCreating an ARC-1 BTP Diagram with Codex and a draw.io SkillThe sap-architecture skill from marianfoo/btp-drawio-skill draws architecture diagrams as editable draw.io files in SAP Architecture Center style by copying the closest of 71 bundled SAP reference templates, or a built-in fallback layout, then validating, scoring and rendering the result for the model to inspect; it takes ideas from Wouter Lemaire's btp-solution-diagram-generator and from claude-drawio-btp-diagram. Codex ran it on an L2 diagram of ARC-1 on BTP Cloud Foundry, reached from VS Code over MCP and passing through XSUAA, Destination, Connectivity and Cloud Connector to an on-premise ABAP system, and the first pass validated and scored 100 while labelling the flows HTTPS and OData/REST instead of MCP and ADT REST. The post draws its boundary from that run: the checks read the file's visual structure and cannot tell whether the architecture is right, and a diagram with no close template still needs manual draw.io work.published 2026-07-09
A Clearer View of Your SAP Integrations Under the New API PolicyA Clearer View of Your SAP Integrations Under the New API PolicyThe SAP API Policy Evidence Skill assesses one SAP interface or usage pattern at a time against SAP API Policy v.4.2026a, reading evidence from five MCP servers, among them servers for the Business Accelerator Hub and SAP Notes, mcp-sap-docs and a read-only ARC-1, and returns one of four labels with a confidence level, an evidence table, residual risk and questions for SAP. It gives no compliant or not compliant answer on purpose, because SAP's FAQ (Q49) declines to publish a binding decision matrix, and it sends legal, commercial and roadmap questions to SAP and lowers its confidence when a source is not connected. Four sample runs show the method, among them ODP-RFC extraction labelled likely not aligned under SAP Note 3255746 and the same API_SALES_ORDER_SRV assessed differently for an autonomous agent behind a custom gateway and for a Boomi middleware flow; the SAP Notes and Business Accelerator Hub servers read SAP sites through a browser login, which the post says to use at your own risk.published 2026-06-02
Before You Upgrade S/4HANA: Static UI5 Checks with MCPBefore You Upgrade S/4HANA: Static UI5 Checks with MCPA UI5 version upgrade checked against one app by pairing two MCP servers: the ui5_version_diff tool added to mcp-sap-docs, which reads a bundle from ui5-lib-diff downloaded once at setup and filters it by version range, change type, library or query text, and @ui5/mcp-server, whose get_project_info, get_version_info, run_ui5_linter and run_manifest_validation say what the app uses and what fails. Run with a ui5-versions-upgrade.md skill on the legacy app from From SEGW and Legacy UI5 to RAP with ARC-1, from SAPUI5 1.84.59 to 1.147.2, the diff range held 985 deprecations and 961 What's New entries, and the linting and manifest validation narrowed that to findings in this app, among them jQuery.sap.require, synchronous bootstrap, the sap_belize theme, sap.m.MessagePage and an old manifest _version. The checks read the source in a local checkout and never the deployed app, so the report is a first pass: a changelog entry is not proof that a workaround can be deleted, and the app still has to be run and tested.published 2026-05-20
ARC-1 with Joule Studio: Bringing Real ABAP System Context into JouleARC-1 with Joule Studio: Bringing Real ABAP System Context into JouleBrings the same BTP-deployed ARC-1 endpoint into Joule through a Joule Studio, classic edition agent configured with Anthropic Claude Sonnet 4 and two MCP servers, ARC-1 and mcp-sap-docs, for work that starts in SAP where the previous part started in Microsoft 365. Two read-only showcases carry the ABAP Cloud readiness edge: a clean core check of one class that reports it is not released, uses USR02 and BUT000 directly and has no ATC findings, and a modernisation backlog for package ZSD_LEGACY which, as that package did not exist, grouped 28 ZSD* objects into risk buckets instead. The route through SAP Integration Suite API Management or a future MCP gateway is presented as a target architecture and not yet a productive setup, because Joule Studio's documentation requires streamable HTTP destinations and does not support MCP servers that need interactive OAuth user authorisation.published 2026-05-06
ARC-1 with Joule Studio: Bringing Real ABAP System Context into Joule
arc-1 has been through 2 major lines since this was published: 0.9 (2026-05), 1 (2026-07). Affects Runnable code.
ARC-1 on SAP BTP: Secure ABAP Agentic Development Beyond the LaptopARC-1 on SAP BTP: Secure ABAP Agentic Development Beyond the LaptopThe BTP deployment of ARC-1: one Cloud Foundry app per SAP system, reached by MCP clients through XSUAA and reaching the backend through the SAP Destination service, the SAP Connectivity service and Cloud Connector, with a BasicAuth destination for startup probing and a Principal Propagation destination for per-user requests, and SAP_PP_STRICT=true so a propagation problem fails instead of falling back to the shared user. Tool governance is the three gates it spells out, the server ceiling set by environment variables, the user's permission from XSUAA role collections, OIDC scopes or API-key profiles, and the SAP backend authorisation, all of which must allow an action, and the staged rollout from read-only to writes in $TMP, then selected packages, then transport writes. It recommends the MTA deployment over Docker on Cloud Foundry or a buildpack push, treats BTP ABAP Environment as a separate service-key scenario with no Cloud Connector, and is not a full setup guide: the commands are left to the ARC-1 deployment docs.published 2026-04-29
ARC-1 on SAP BTP: Secure ABAP Agentic Development Beyond the Laptop
arc-1 has been through 3 major lines since this was published: 0.8 (2026-05), 0.9 (2026-05), 1 (2026-07). Affects A recipe.
How I Use AI for Development and Why Context MattersHow I Use AI for Development and Why Context MattersPart one of the AI ABAP development series traces a move from pasting ChatGPT output and error messages back and forth to tools that search, read docs and inspect files themselves, and holds that the context around a model decides more in real projects than benchmark results do. In SAP work the grounding comes from mcp-sap-docs, which brings SAP Help, GitHub repositories, style guides and DSAG guidelines into the session, and context for changing a class also means the tables it uses, the classes it calls and similar implementations. Agentic autonomy is a slider set per project, with the time saved on typing moved into planning and review, and the post stops before ABAP: SAP's MCP servers for UI5, CAP and Fiori (@ui5/mcp-server, @cap-js/mcp-server, @sap-ux/fiori-mcp-server) sit in off-stack work that git and pipelines already gate, and the harder ABAP case is left to the next part.published 2026-04-20
Building an Enterprise-Ready SAP AI Agent with Open SourceBuilding an Enterprise-Ready SAP AI Agent with Open SourceA self-hosted chat agent for SAP systems: LibreChat as UI and orchestrator with Entra ID sign-in and SharePoint connected, a local LLM through Ollama, and two MCP servers, mcp-sap-docs for public documentation and the ADT MCP server vibing-steampunk for the system itself. The ADT server runs in its read-only mode under a technical user with display authorisations only, so the agent can find a function module and pull its source, or locate a RAP business object with its behaviour definition and projection view, but cannot change anything. Two workflows show it, explaining what BAPI_DISPUTE_CREATE does in one system and planning a RAP action from a PDF specification, where the generated ABAP is copied into Eclipse by hand; the full setup is in the marianfoo/llm-client-sap-system-integration-sharepoint repository.published 2026-03-03
Finally: An MCP Server for ABAPFinally: An MCP Server for ABAPAnnounces the ABAP variant of mcp-sap-docs, published at mcp-abap.marianzeis.de for GitHub Copilot's Agent Mode in ADT for Eclipse, which the post names as the trigger, with ABAP knowledge still a recurring problem in the models. Documentation irrelevant to ABAP was removed from the SAP docs server and the ABAP Keyword Documentation, the DSAG ABAP Development Guidelines and the ABAP Style Guide were added, with search reaching past the local index to SAP Community posts and SAP Help. Copilot in Eclipse is where the post puts the weight, because SAP Joule for Developers, ABAP AI capabilities in Eclipse is not available for S/4HANA on-premise systems; an update of 2026-02-05 adds Software Heroes as an online source and an abap_feature_matrix tool that checks feature availability across releases and ABAP Cloud, and the server runs hosted or locally with Node or Docker.published 2026-02-04
Don't Wait for SAP: Unlocking MCP Servers in BAS Right NowDon't Wait for SAP: Unlocking MCP Servers in BAS Right NowA workaround post with a grievance behind it: MCP servers were promoted heavily at SAP TechEd, most IDEs support them, and Business Application Studio limits you to Joule. This is how to run them there anyway. Worth reading as evidence of where the tooling gap sits rather than only for the recipe, which by nature has a shelf life.published 2025-11-27
Evaluating SAP’s new MCP servers: UI5, CAP, and Fiori tools in practiceEvaluating SAP’s new MCP servers: UI5, CAP, and Fiori tools in practiceSomeone trying SAP's three new MCP servers rather than repeating the announcement. It sets the official positioning first — MCP as the bridge from coding assistants to SAP tooling across Cursor, Windsurf, Copilot, Cline and Claude Code, with best-practice scaffolds and BTP-aligned guardrails — and then reports what using them is actually like. The rare kind of post that tests a vendor claim.published 2025-09-04
Simplifying SAP BTP Authentication in Pipelines with SAP Passport and PlaywrightSimplifying SAP BTP Authentication in Pipelines with SAP Passport and PlaywrightClient-certificate login to BTP works locally and has historically not worked in automated pipelines. The post uses Playwright's then-new client certificate support to close that, which is a sideways use of a browser automation library and the reason it is worth recording — the constraint it removes is a CI constraint, not a testing one.published 2024-11-08
Details
History
- @marianfoo/sap-mcp-authRe-read against the README as it stands today. "No token endpoint" and "there is no client-credentials flow to use instead" were absence claims about SAP's portals that no source makes, so they are gone and the paragraph now says what the module does and whom it serves. The maintainer's own unofficial caveat, and the origins password login refuses, are in when_not_to_use. The package block states that it is imported into the caller's own program and installed from npm. The README names [Cloud Identity Services](artifact:btp-cloud-identity-services) as the tenant the login goes to, which is an edge rather than a phrase in a paragraph.
- @arc-mcp/xsuaa-authThe BTP door now compares its authentication options on whether the signed-in identity reaches the next system. The README's sentence about the `./btp` entrypoint states it for this package, and it was read again on this date.
- sap-architecturecapability:agent-guidance declared the installs_into property on the BTP door. The README states the skill is portable and then names the instruction file for each tool in a table, so the statement is the portability sentence and each value carries the row that names it. The table also names Jules, Amp and Factory, which are outside the property's values and are left for the curation queue rather than entered as written.
- sap-architectureThe entry said other agents can run it and not what that costs. The README's own caveat, read on 2026-10-15, is that the auto-load is Claude's alone, which is the difference between this option and a Claude-only one.
- @marianfoo/sap-mcp-authEntered with the three servers of the same monorepo that name it. It publishes on its own and answers a question of its own — how a tool outside SAP gets an authenticated session against an SAP portal — so it is an entry rather than an implementation detail of the three.
- btp-cf-mcpRead out of the marianfoo account listing. Entered as a starting-point, since the maintainer's own status line calls it "a working proof-of-concept", so its boundaries sit in description.to_build_on_it rather than in a warning. capability:mcp-servers already reads core-only on the BTP door because every provider there is SAP-published; this is an independent one, which is a reading the capability will have to move.
- SAP API Policy Evidence SkillThe entry described the skill as gathering evidence "through MCP servers" without naming one, because four of the five were not in the corpus. Three entered in the same batch as their own packages, and mcp-sap-docs and arc-1 were already here, so the README's own prerequisites table becomes edges. Conditional rather than required: the README states the skill degrades gracefully when one is missing and names which two raise confidence to high.
- sap-api-hub-mcp[The SAP API Policy Evidence Skill](artifact:marianfoo-sap-api-policy-skill) was entered on 2026-09-10 naming this server as what proves an API's Published-API status, and the server itself was not in the corpus. Entered as its own package, from its own README, because the monorepo publishes each server to npm independently.
- sap-note-search-mcpThe decline recorded for candidate:marianfoo/mcp-sap-notes on 2026-09-10 named this as the successor and as an open gap: "SAP Notes search is a real gap in the corpus and the thing that fills it has to be found some other way." Entered from the monorepo package rather than the archived repository, and from the package's own README.
- sap-roadmap-mcpNamed in [the SAP API Policy Evidence Skill](artifact:marianfoo-sap-api-policy-skill)'s prerequisites as the source for replacement APIs, and absent from the corpus. Entered as its own package, from its own README, because the monorepo publishes each server to npm independently.
- mcp-sap-docsCorrected against the README: its offline-sources table lists seventeen repositories, abap-docs-standard through wdi5.
- SAP API Policy Evidence SkillTriaged out of data/crawled/mcp-candidates.json, the sap-ai-mcp-servers sweep. Written from the repository's own README; the catalogue is credited as where it was found and its words are not reused. Hard rule 7: skills are indexed, never authored here.
- mcp-sap-docsNamed in docs/NEIGHBOURS.md §3.1 as a project of the bestofcapjs author but never entered. It is a documentation retrieval server, not an index of options — the complement posture the same section assigns ARC-1, and hard rule 5 makes it exist here only as an attached entry.
- First entry seenDiscovered via GitHub API · arc-mcp, GitHub organisations and accounts · marianfoo, GitHub API · marianfoo, sap-ai-mcp-servers, Added by hand.
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