Desktop appDesktop appAn application you run locally with a desktop user interface. It may be distributed as an installer or built from source; it is the workspace itself, rather than a library, command-line tool or hosted utility.See every one →What this type is →independently maintainedindependently maintainedPublished by one person or a small company outside SAP. Says nothing about quality; the readings say that.See every one →
Hammer
A native macOS code editor for ABAP and CDS, with an Object Navigator, Transport Organizer, Data Browser and Gateway Client in the same app as the editor.
Hammer edits ABAP and CDS objects in a connected SAP system from a native macOS IDE, with an Object Navigator, Transport Organizer, Data Browser and Gateway Client. It can use ADTADT resourcesThe HTTP endpoint an ABAP system exposes as the adt ICF service under /sap/bc/adt, so a client outside the system can reach development objects, delivered with the platform rather than installed.sap official, abap; Hammer Core ServicesHammer Core ServicesThe ABAP-side component for Hammer, adding a connection to the SAP system, lock handling, SICF service control and abapGit integration.independent, abap installation adds lock handling, SICF service control and abapGitabapGitA Git client written in ABAP that runs inside the system, so objects are cloned, pulled and pushed without leaving it; with no package manager in ABAP, a cloned repository is how code is distributed.community org, abap integration on supported releases. Its integrated AI agent can update source and activation state in open tabs, with separate per-system access modes and approval settings.
Where it sits
Lives in
Provides
Editor supportABAPEditor supportWorking in source code with the editor helping rather than treating it as text — completion, go-to-definition, inline errors, refactoring and preview.Browsing table dataABAPBrowsing table dataLooking at what a system holds while developing or supporting it: the rows behind a key, the reference data a field points at, the tables that carry data for one object. Editing configuration records through maintenance screens is a different job, even where the same transaction does both.Change promotionABAPChange promotionMoving a change through the environments of a landscape, from development through test to production, and knowing which change has reached which environment. A [CI/CD pipeline](capability:ci-cd) builds and tests on each source change, [deployment](capability:deployment) puts a build onto its runtime, and getting source into git is [source control](capability:abap-source-control).Agent access to your codeABAPAgent 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.
Optional
Hammer Core ServicesHammer Core Servicesthe SAP-side service installed from Hammer; the ADT connection remains available without HCS
Who is behind it
André SchärpfAndré SchärpfMaintains this
In the atlas: maintains 1@andre-schaerpfmaintainer
In the atlas: maintains 1@andre-schaerpfmaintainer
Before choosing this
Conditions
PracticalFunctional boundary
It runs on macOS only. Hammer Core Services, the part installed into the SAP system, needs that system on ABAP Platform 2023 or newer with SAP_BASIS 758 or newer, and installing it needs a user who can create development objects and run background jobs in that system.
PolicySAP API Policy 4.2026a§ 1.1, 1.2, 2.2.2from Agent access to your codeAn MCP server calls ADT or another SAP API of a running system for an agent.
- § 1.1 Published APIs. Published APIs are made available for the documented purposes identified by SAP, including integration, extensions and data exchange.
- § 1.2 Non-Published APIs. Customer and third-party applications must not access non-published APIs except where documentation permits it or SAP otherwise authorizes it.
- § 2.2.2 AI call sequences and data extraction. Outside SAP-endorsed architectures, data services or expressly identified pathways, the policy prohibits specified agentic API use and systematic or large-scale extraction.
An agent that plans and executes ADT calls is the case section 2.2.2 names. Check that the endpoints are published for the intended use, and that the design runs within a pathway SAP identifies for it.
SAP API Policy 4.2026a →What it declares
Every artifact
- Type
- Desktop app
- Origin
- Independently maintained
As a desktop app
- Runs on
- macOS
- Distributed through
- does not say
Parts and add-ons
Parts 1
Hammer Core ServicesThe ABAP-side component for HammerHammerA native macOS code editor for ABAP and CDS, with an Object Navigator, Transport Organizer, Data Browser and Gateway Client in the same app as the editor.independent, abap, adding a connection to the SAP system, lock handling, SICF service control and abapGitabapGitA Git client written in ABAP that runs inside the system, so objects are cloned, pulled and pushed without leaving it; with no package manager in ABAP, a cloned repository is how code is distributed.community org, abap integration.
Connections
Group by
NodeRelationBasis
Functional
Agent access to your codeAgent access to your codeLetting a coding agent read and act on your project or systemSAP and community, unassessed
provides
stated
provides Agent access to your code
Lets the integrated agent investigate repository objects and update source and activation state in open editor tabs. Per-system access can be Read Only or Development Changes, separately from approval settings.
“Watch the agent update source and activation state in open editor tabs while Hammer coordinates locks and protects unsaved human work.”“Choose Read Only or Development Changes independently from Ask Me, AI-Assisted Review, or Trusted Development approval behavior for each SAP system.”“The agent can investigate repository objects, transports, locks, short dumps, application logs, background jobs, spool output, data, dependencies, ABAP documentation, and more according to the connected system's capabilities.”
Letting a coding agent read and act on your project or system
Browsing table dataBrowsing table dataLooking at the data a system holds while developing or supporting itSAP and community, unassessed
provides
stated
provides Browsing table data
Opens a Data Browser in the same macOS app as the editor, reading the rows over the connection the app already holds to the configured SAP system.
“Object Navigator, Transport Organizer, Data Browser, and Gateway Client, all in one native macOS app.”“Requests are made directly from your Mac to that SAP system for IDE features like source editing, activation, transport actions, and data browsing.”
Looking at the data a system holds while developing or supporting it
Change promotionChange promotionMoving a change from development through test to productionSAP and community, unassessed
provides
stated
provides Change promotion
Carries a Transport Organizer in the same macOS app as the editor, so transport actions run from the Mac over the connection to the configured SAP system.
“Object Navigator, Transport Organizer, Data Browser, and Gateway Client, all in one native macOS app.”“Requests are made directly from your Mac to that SAP system for IDE features like source editing, activation, transport actions, and data browsing.”
Moving a change from development through test to production
Editor supportEditor supportEditor help with source: completion, navigation, errors, refactoringSAP and community, narrow by design
provides
stated
provides Editor support
Puts ABAP and CDS source editing into a native macOS application beside an Object Navigator, working against the SAP system the developer configured rather than against a local checkout.
“Hammer is a native macOS code editor for the ABAP® programming language, developed by André Schärpf.”“Object Navigator, Transport Organizer, Data Browser, and Gateway Client, all in one native macOS app.”“Requests are made directly from your Mac to that SAP system for IDE features like source editing, activation, transport actions, and data browsing.”
Editor help with source: completion, navigation, errors, refactoring
Technical
Hammer Core ServicesHammer Core ServicesABAP-side component for the Hammer editorindependent, abap
needed by
derived
needed by Hammer Core Services
the documented guided installation, upgrade and repair workflow
“Hammer 1.0 or newer.”“Hammer checks the installed release automatically. If an upgrade or repair is available, the HCS section shows the appropriate action and uses the same guided process.”
ABAP-side component for the Hammer editor
Hammer Core ServicesHammer Core ServicesABAP-side component for the Hammer editorindependent, abap
optionally needs
stated
optionally needs Hammer Core Services
choosing the HCS connection on a supported SAP system
the SAP-side service installed from Hammer; the ADT connection remains available without HCS
“Using an older SAP system? Keep using Hammer with its ADT connection. Hammer does not offer HCS installation when the SAP system is unsupported.”“That is all. Hammer will use HCS for this connection. No manual SICF setup or archive upload is required.”“The ABAP-side service behind Hammer. HCS adds a faster connection, lock handling, SICF service control, abapGit, and more.”
ABAP-side component for the Hammer editor
Lineage
Hammer Core ServicesHammer Core ServicesABAP-side component for the Hammer editorindependent, abap
has part
derived
has part Hammer Core Services
ABAP-side component for the Hammer editor
Download
Others providing
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- erpl-adterpl-adtOne C++ binary that speaks the ADT REST API as a CLI and as an MCP server — no Eclipse, no NetWeaver RFC SDK, no JVM — and reaches BW/4HANA modelling as well as ABAP.independent, abapC++ binary speaking the ADT REST API as a CLI and MCP serverfrom ABAP
- 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, btpMCP server for BW/4HANA modelling objectsfrom BTP/BAIP
- EPOD ADT MCP ServerEPOD ADT MCP ServerAn MCP server for ABAP that runs inside ABAP Development Tools for Eclipse on the ADT session of each connected project, with a standalone mode that runs with no IDE open.independent, abapMCP server for ABAP on the ADT session, in Eclipse or standalonefrom ABAP
- ZARC1_EXTENSION_FORMSZARC1_EXTENSION_FORMSAn extension of four tools for arc-1, with an ABAP backend behind it, that reaches the classic form objects ADT has no API for: SAPscript layout sets, Smart Styles and the TADIR record of a Smart Form.independent, abaparc-1 extension for SAPscript and Smart Forms objectsfrom ABAP
- fgalastri/MCP_ABAPfgalastri/MCP_ABAPValidates an ABAP class before it is deployed by converting the global class to a local one and syntax-checking that — plus CDS DDL and table metadata retrieval.independent, abapValidates an ABAP class before it is deployed by converting the global class to a local one and syntax-checking that — plus CDS DDL and table metadata retrieval.from ABAP
- fr0ster/mcp-abap-adtfr0ster/mcp-abap-adtFull CRUD across on-premise and ABAP Cloud systems, with five authentication methods and three transports: a library under Apache-2.0 and a standalone server under AGPL-3.0-only.independent, abapABAP MCP server with full CRUD on on-premise and ABAP Cloudfrom ABAP
- abapsmithabapsmithAn MCP server that lets an LLM develop in ABAP on a live system over ADT, with writes off by default and every mutation recorded in a local journal that can undo it.independent, abapABAP MCP server over ADT with a local journal that can undo writesfrom ABAP
- sap-ai-dev-toolkitsap-ai-dev-toolkitAn MCP proxy that pins an agent's ABAP tools to one SAP system: setup reads the BAS destinations or the local SAP GUI landscape and writes one stdio server per system, leaving the credentials in the destination or in the editor's own login prompts.independent, abapMCP proxy pinning an agent's ABAP tools to one SAP systemfrom ABAP
- aibap.mcpaibap.mcpA Go server that closes the loop: after create, write and activate it can run the class it just wrote through ADT's classrun and hand the console output back.independent, abapGo MCP server that writes, activates and runs ABAP classes via ADTfrom ABAP
- BellaBellaAn Eclipse plugin that puts Claude into ABAP Development Tools: explain, generate, rework and implement from the editor's context menu, completion as ghost text, and a chat whose tools reach the system through the developer's existing ADT logon.independent, abapEclipse plugin bringing Claude into ABAP Development Toolsfrom ABAP
- Maherd18/sap-mcp-serverMaherd18/sap-mcp-serverAn MCP server for ABAP development over the ADT resources: eight tools, each checked against a JSON policy file before the call reaches the system, with activation and transport release held for a person to approve.independent, abapPolicy-checked MCP server for ABAP development over ADTfrom ABAP
- sapdumpmcpsapdumpmcpAn MCP server for SAP dumps: it connects to an ABAP system over the ADT resources and lets an MCP client ask a dump for its description and call stack.independent, abapMCP server reading ABAP short dumps over ADTfrom ABAP
- ABAP remote filesystemABAP remote filesystemA Visual Studio Code extension that opens an ABAP system over ADT as an editable filesystem and exposes system tools to GitHub Copilot and external MCP clients.independent, abapVS Code extension editing ABAP systems over ADT as a filesystemfrom ABAP
- mcp-abap-abap-adt-apimcp-abap-abap-adt-apiThe write half of the same pair: a thin wrapper over Marcello Urbani's abap-adt-api, exposing lock, edit, activate, transport and syntax check for a full development loop.independent, abapWrite-oriented MCP server over abap-adt-apifrom ABAP
- mcp-abap-adtmcp-abap-adtThe read-oriented half of a pair of ABAP MCP servers: high-level tools such as GetProgram, GetClass and GetTable that fetch from a system, aimed at understanding it rather than changing it.independent, abapRead-oriented MCP server fetching ABAP programs, classes, tablesfrom ABAP
- SAP MCP Connection ManagerSAP MCP Connection ManagerA Windows desktop manager that holds SAP connections and hands them to Claude Desktop or Codex through a local MCP server, each connection carrying a policy that decides what the assistant may change and what data it may read.independent, abapWindows desktop manager handing SAP connections to assistants over MCPfrom ABAP
- ABAPilotABAPilotAn MIT-licensed MCP connector for ECC and on-premise S/4HANA that reads ABAP source and dictionary context, whose SAP-side half is a licensed product you install in the system.independent, abapMCP connector for ECC and on-premise S/4HANA with a licensed SAP sidefrom ABAP
- vibing-steampunkvibing-steampunkAn ADT-to-MCP bridge in Go that reaches past what ADT exposes — cluster tables decoded, spool and job logs read as tables, the IMG searched, selection texts written back.independent, abapADT-to-MCP bridge in Go reaching past what ADT exposesfrom ABAP
- ADT MCP ServerADT MCP ServerSAP's own ADT MCP server, and not a package: a preference inside ABAP Development Tools for VS Code that starts a local HTTP MCP server on a port you choose.sap official, abapLocal HTTP MCP server started from ABAP Development Tools for VS Codefrom ABAP
- ABAP Development Tools for VS CodeABAP Development Tools for VS CodeSAP's ABAP tools in VS Code: editing, debugging, ABAP Unit, ATC and transports for classes, CDS and RAP objects, over RFC to an on-premise or Private Cloud system and HTTP to a cloud one, with Joule's ADT MCP server and code completion behind an AI-unit licence.sap official, abapSAP's ABAP tools in VS Code for editing, debugging, ATC and transportsfrom ABAP
- SAP Joule for Developers, ABAP AI capabilitiesSAP Joule for Developers, ABAP AI capabilitiesSAP's AI for ABAP development in ADT for Eclipse and VS Code: chat, code completion, explain, test and CDS generation, RAP logic prediction, and since June 2026 an agentic mode over the ADT MCP Server, metered in AI units through the ABAP AI Hub Service on BTP.sap official, abapSAP's AI for ABAP development in ADT for Eclipse and VS Codefrom ABAP
- @sap/mdk-mcp-server@sap/mdk-mcp-serverFive tools for Mobile Development Kit work: create a project, generate pages and rules into it, drive the build and deploy, read the documentation, and pull OData metadata from Mobile Services.sap official, btpMCP server with five tools for Mobile Development Kit workfrom BTP/BAIP
- @sap-ux/fiori-mcp-server@sap-ux/fiori-mcp-serverSAP's Fiori MCP server, run as fiori-mcp, letting a coding assistant create and edit Fiori applications directly rather than describing the steps.sap official, ui5MCP server for creating and editing Fiori applicationsfrom UI5
- ABAPDocMCPABAPDocMCPTurns a transport request into a WRICEF technical specification: reads the transport's objects and source over ADT and writes a structured Markdown document with an object-relationship diagram.independent, abapMCP server turning a transport request into a WRICEF specificationfrom ABAP
- claude-sap-kitclaude-sap-kitA Claude Code plugin of three skills that extends arc-1 with five Custom_* tools for an on-premise ABAP system: running a report and reading its ALV as JSON, previewing a NAST message as PDF, and reading, writing and replacing SmartForms as XML.independent, abapClaude Code plugin adding Custom_* tools to arc-1from ABAP
- Skybuffer AI MCP serverSkybuffer AI MCP serverAn ABAP add-on that serves SAP business data, transactions and development context as MCP tools from an ICF node inside SAP ECC and S/4HANA, each call running as the signed-in user under PFCG authorization checks.independent, abapABAP add-on serving business data and transactions as MCP toolsfrom ABAP
- @ui5/mcp-server@ui5/mcp-serverSAP's MCP server for UI5 development: ten tools that scaffold an app or a card, read the project in front of the agent, and run the linter and the manifest validator against it.sap official, ui5MCP server for UI5 development with ten toolsfrom UI5
- abap-adt-cliabap-adt-cliPulls an ABAP package to local files over the ADT REST API in parallel, and pushes edited objects back under a transport — bulk sync rather than one object at a time in SE80 or Eclipse.independent, abapCLI that pulls and pushes ABAP packages as local files over ADTfrom ABAP
- workskong/mcp-abap-adtworkskong/mcp-abap-adtA deliberately light MCP adapter over ABAP ADT for object search, source, DDIC metadata, a data preview and runtime diagnostics, read-only in practice and documented in Korean.independent, abapLight MCP adapter for ABAP over ADT, documented in Koreanfrom ABAP
- KlystronKlystronAn MCP server written in ABAP that runs inside the application server behind an ICF service and exposes typed tools for ABAP development, quality, transports, customizing, roles, Basis operations and integration, with a client-side plugin of SAP skills.independent, abapMCP server in ABAP inside the application server, with agent skillsfrom ABAP
- pyrfc-mcppyrfc-mcpAn MCP server for calling an SAP system's RFC-enabled function modules from an agent, built so that discovering a function does not authorise calling it: a read or a write is denied unless the function name matches an allowlist the server is configured with.independent, abapMCP server calling RFC-enabled function modules behind an allowlistfrom ABAP
- ABAP-AI-CODE-TOOLSABAP-AI-CODE-TOOLSAn optional abapGit package that adds create, modify and delete tools to ABAP AI Code, for ABAP programs and classes, with each diff block approved before it is saved.independent, abapabapGit package adding create, modify and delete tools to ABAP AI Codefrom ABAP
- ABAP AI CodeABAP AI CodeAn agentic coding assistant written in ABAP that runs as a SAP GUI report and reads, explains and reviews repository objects inside the system, running an LLM's tool calls as ABAP.independent, abapAgentic coding assistant in ABAP that runs as an SAP GUI reportfrom ABAP
- VERTEXVERTEXAn extension for ABAP Development Tools for Eclipse and VS Code that shows Simple Data Explorer, AVE and ACE in the editor over the developer's ADT connection.independent, abapADT extension for Eclipse and VS Code showing three SAP GUI toolsfrom ABAP
Details
Sources
Sources are graph entities: the same page may back several entries, and an unreachable source flags every row that rests on it.
Compatibility and provenance
discovered viaAdded by hand · https://schaerpf.com/Hammer/
first seen in the atlas
ecosystem and domainabap, developer-experience
History in the atlas
- First seen.
For your agent
- Ref
artifact:andre-schaerpf-hammer- JSON
- /artifacts/andre-schaerpf-hammer.json
- MCP
- Connecting an agent