Hopper — AI Agents for Mainframe Operations - Hypercubic vs Unabyss: Features, Pricing & Which Is Better (2026)
A side-by-side comparison of Hopper — AI Agents for Mainframe Operations - Hypercubic and Unabyss — features, pricing, and ideal use cases — to help you decide which AI tool fits your workflow.
Hopper — AI Agents for Mainframe Operations - Hypercubic
Hypercubic
Agentic TN3270 emulator that lets AI agents operate z/OS: navigate ISPF, write column-strict JCL, debug jobs, and query VSAM.
Key features
- Agentic TN3270 Emulation: Provides a real TN3270 terminal interface that AI agents can interact with to perform terminal-based workflows and operations inside z/OS.
- Model Context Protocol Integration: Connects AI agents to mainframe systems via Model Context Protocol, enabling contextualized, stateful interactions and natural-language commands.
- ISPF Navigation and Interaction: Lets agents navigate ISPF menus, edit dataset members, and perform common ISPF tasks programmatically to automate operator workflows.
- Column-Strict JCL Generation: Generates, validates, and edits column-strict JCL compliant with mainframe formatting rules, reducing errors and manual rework.
- Job Debugging and JES Integration: Diagnoses failed jobs by examining JES output, suggests fixes or corrective JCL edits, and supports resubmission workflows.
- VSAM and Dataset Querying: Enables agents to query, inspect, and modify VSAM files and other datasets directly from the terminal context for data investigation and remediation.
- Autonomous Workflows and Natural-Language Ops: Orchestrates multi-step autonomous tasks initiated via natural language, combining terminal actions, queries, and code edits.
- Knowledge Capture and Documentation: Records operational procedures and extracts institutional knowledge from mainframe artifacts (COBOL, JCL) for documentation and modernization.
- Agentic TN3270 terminal emulation
- Natural-language agent workflows for ISPF/JCL/JES/CICS
- Column‑strict JCL generation and job debugging
- Dataset and VSAM querying
- Integration with z/OS environments and secure on‑prem deployments
- Agentic TN3270 terminal emulator for real terminal interactions
- Connects agents to mainframe via Model Context Protocol
- Natural-language driven operations and workflows
- ISPF navigation and automation
- Column-strict JCL generation and editing
- Job debugging and failed-job analysis
- VSAM and dataset querying and inspection
- Support for JES and CICS interactions
- Agentic development environment for creating and running autonomous agents
Best for
- Automated Job Recovery: Detect failed batch jobs, analyze JES logs, generate corrected JCL, and resubmit jobs with minimal human intervention to reduce downtime.
- JCL Authoring and Validation: Produce column-strict JCL for new or migrated batch processes, validate formatting and dependencies, and enforce site-specific JCL standards.
- Dataset Investigation and Remediation: Locate datasets via ISPF, query VSAM contents, identify data issues, and apply scripted fixes or migration steps.
- COBOL Documentation and Knowledge Capture: Extract program structure and business logic from COBOL sources, generate human-readable documentation, and preserve institutional knowledge.
- Operator Onboarding and Assistance: Provide interactive, agent-guided terminal sessions that teach new operators how to navigate ISPF and perform common operational tasks.
- Legacy Modernization Workflows: Automate discovery, refactoring, and migration tasks for legacy workloads by combining terminal interactions with scripted modernization procedures.
- Automating routine mainframe operations (job submission, debugging)
- Generating and validating column‑strict JCL
- Exploring and querying VSAM/datasets via agents
- Accelerating COBOL/mainframe modernization tasks
- Providing hands‑on evaluation environments for mainframe dev teams
- Automated mainframe operations and incident remediation
Unabyss
Unabyss
Self-updating universal context layer that provides segmented, persistent context to agents and LLMs via the MCP connector protocol.
Key features
- Self-Updating Context Layer: Continuously ingests and refreshes relevant documents, events, and interaction history so connected agents always receive current context without manual updates.
- MCP-Native Connector: Exposes context through the MCP connector protocol, enabling any MCP-capable agent or LLM to request and consume the same shared context surface.
- Segmented Access Controls: Context is segmented by default to enforce boundaries between projects, users, or data classes, reducing accidental exposure of private information.
- Persistent Cross-Session Memory: Stores and surfaces long-lived context across sessions, addressing short-lived model memory and improving multi-step task continuity.
- Automatic Context Prioritization: Selects and supplies the most relevant context for a given prompt or agent task, reducing prompt size and minimizing irrelevant data sent to models.
- Agent-Agnostic Integration: Works with multiple agents and LLM backends (via MCP), allowing teams to centralize context management without coupling to a single model provider.
- Persistent, session-spanning context storage to address short-term memory limits
- Self-updating context that automatically evolves without manual prompt engineering