# IBM AS/400 iSeries

> Use this tool when you need to interact with legacy IBM AS/400 and iSeries mainframe systems, enabling AI assistants to perform operations like user authentication and menu navigation without direct terminal access. It solves problems of modernizing legacy system interactions, providing a configurable approach for defining connection parameters and automated terminal interaction flows. The tool takes YAML-based connection parameters as input and outputs screen output as text, ideal for use cases requiring automated mainframe operations.

Canonical page: https://skillsregistry.net/skills/abstracta-ibm-as400-iseries  
JSON: https://api.skillsregistry.net/v1/skills/abstracta-ibm-as400-iseries

## Description

A Spring Boot-based MCP server that enables AI assistants to interact with IBM AS/400 and iSeries mainframe systems through RTE (Remote Terminal Emulator) protocols including TN5250, TN3270, and VT420. Built by Abstracta using the jmeter-bzm-rte library, it provides a configurable YAML-based approach for defining connection parameters and automated terminal interaction flows, allowing users to execute mainframe login sequences and retrieve screen output as text. Particularly valuable for modernizing legacy system interactions, enabling AI assistants to perform mainframe operations like user authentication and menu navigation without requiring direct terminal access or specialized mainframe knowledge.

## Trust

- **Trust score (0–1):** 0.64
- **Verification tier:** scanned
- **Last scanned:** 2026-09-02

## Facts

- **Version:** 1.0.0
- **Skill type:** atomic
- **Execution layer:** mcp-remote
- **Runtime environment:** api
- **Category:** security
- **Updated:** 2026-09-02

## Source

- **Source listing:** [PulseMCP](https://www.pulsemcp.com/servers/abstracta-ibm-as400-iseries)
- **Repository:** <https://github.com/abstracta/ibm-as-400-iseries-mcp-server>

## Use it

Resolve this record through the SkillsRegistry MCP server (no auth, read-only):

```
claude mcp add --transport http --scope user skillsregistry https://api.skillsregistry.net/mcp
```

```json
{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "tools/call",
  "params": {
    "name": "get_skill",
    "arguments": {
      "slug": "abstracta-ibm-as400-iseries"
    }
  }
}
```

REST: `GET https://api.skillsregistry.net/v1/skills/abstracta-ibm-as400-iseries` · pull for local use: `GET https://api.skillsregistry.net/v1/skills/abstracta-ibm-as400-iseries/pull`

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SkillsRegistry indexes agent skills from public registries and GitHub. Skills we have analysed are scanned with Circle-IR and scored on six dimensions; each listing states its scan coverage. More: https://skillsregistry.net/llms.txt