A Connect/MP Component

Every Dataset. Every USS File.
Browser Accessible, AI Enabled.Connect/Files

Native

z/OS
Architecture

Hex

View
Included

z/OSMF

Compatible
REST API

PDS

& PDSE
Member Access

SAF

Access
Control

See It In Action

Browse, Inspect, and Work With Files Directly

Datasets and USS files side by side, a hex view for binary content, and Connect/AI right there in the same workspace — all in the browser, no client software required.

Why Connect/Files

Direct, governed access to every dataset and USS file.

Browse, read, write & delete

Full lifecycle access to sequential datasets, PDS/PDSE members & USS files

Connect/Files gives you direct read, write, and delete access to z/OS sequential datasets, PDS/PDSE members, and USS files — browsable and editable straight from the browser, no client software required.

Hex view included

Inspect binary and packed-decimal content directly

View file and dataset content in hex alongside standard text view — useful for binary data, packed-decimal fields, and anything that doesn’t render cleanly as plain text.

z/OSMF-compatible REST API

Drop-in replacement for /zosmf/restfiles

Connect/Files understands IBM z/OSMF’s REST interface for file operations natively, giving REST clients already built against /zosmf/restfiles a native, high-performance alternative on Connect/Web.

SAF-gated, every time

Every access runs under your own SAF identity

Every read, write, and delete is authorized through your existing z/OS security manager (RACF or equivalent) under the signed-in user’s own SAF identity — no separate credential store.

Powered by Connect/Web

No middleware, no JVM, no external dependencies

Connect/Files runs on Connect/Web’s lightweight, native z/OS HTTP layer — the same foundation that powers the WebUI and MCP endpoints across the Connect/MP Suite.

Built for scripts and AI agents

Included with any Connect/MP license — no Connect/AI purchase required

The governed REST API is callable from your own scripts, external AI agent frameworks, and Connect/AI alike — included with any Connect/MP component license.

Click any card to expand details.

Every File, Ready for AI to Read, Write & Summarize.

Governed by Connect/AI

Connect/AI reads and summarizes datasets and USS files through this same governed API, reasoning over their content using your choice of mainframe-resident, local, or external model such as Claude, OpenAI, or Grok — with writes gated behind your approval and every action running under the caller’s own SAF identity. Learn about Connect/AI ›

Connect/MP › Connect/Files

Features

Architecture & Deployment

Native z/OS

Zero external infrastructure
Runs entirely on z/OS — no middleware servers, no additional latency, no extra points of failure.

Native z/OS

No clients or plugins
Browser-based access. Zero installation or plugin management for end users.

Native z/OS

Minimal attack surface
No external components means no external exposure. Security perimeter stays on the mainframe.

Security

z/OS SSL

System SSL encryption
Sessions can be secured using z/OS System SSL (OpenSSL on other supported platforms).

SAF

Native access control
Fully SAF-compliant — inherits z/OS security and access control without additional configuration.

REST API & Automation

API

Scriptable from anywhere
Callable from REXX, Python, external AI agents, and Connect/AI to automate dataset and file workflows.

AI-ready

AI inference on file content
Expose dataset and USS file content to external AI agents and Connect/AI for summarization, analysis, or decision-making.

Connect/Files  ·  Data 21

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Data 21

About Data 21

Founded in 1980, Data 21 Inc. is a veteran-owned enterprise software company headquartered in California. For over 45 years, we have delivered innovative, reliable, high-performance mainframe-centric solutions that power today’s connected enterprise.

Our software is embedded in the critical daily operations of hundreds of enterprises worldwide — a testament to our commitment to exceptional engineering and long-term client success. We don’t just support our customers; we evolve alongside them.

At Data 21, the mainframe isn’t a legacy constraint — it’s a strategic foundation.

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Connect/Files