Reliafy
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What's new in Reliafy — October 2026

This month's release is one big thing, Reliafy now works inside your AI agent, and two that make it worth using: your existing diagrams come with you, and repairable systems get exact answers.

Use Reliafy from Claude and other AI agents

Reliafy is now an MCP server, the open standard AI agents use to call tools. Connect it once and your agent can work with your reliability models, datasets and block diagrams directly, using the same engine, conventions and checks as the app.

Connect in a minute

  • claude.ai (and the Claude desktop and mobile apps): Settings → Connectors → Add custom connector, enter https://reliafy.com/mcp, and sign in to Reliafy.

  • Claude Code:

    claude mcp add --transport http reliafy https://reliafy.com/mcp

  • Other MCP clients: point them at https://reliafy.com/mcp. Setup and the full tool list are in the API docs.

Then just ask

  • "What's the reliability of my pump model at 2,000 hours, given it's already run 500?"
  • "Build an RBD of this conveyor: a drive, two redundant gearboxes, and 2 out of 3 rollers."
  • "Now put a second motor in parallel with the first and re-run it."
  • "Here's our BlockSim file. Import it and tell me which block limits availability."

Built to be efficient for agents. Your agent edits a diagram in place instead of rebuilding it, and can hand Reliafy a file (a CSV, an Excel workbook or a diagram from another tool) to import. Answers are exact wherever the maths allows, and they say plainly when a value is estimated, a unit doesn't match or a model is a placeholder. That means fewer tokens, fewer retries and fewer wrong answers.

Try it free, unlimited with Pro. A free account gets 20 tool calls a month, enough to see how it works on your own models and diagrams. Reliafy Pro (US$19/month) removes the limit and adds fitting, simulation and fleet forecasts from your agent. When you hit the limit, your agent can hand you an upgrade link.

You can see and revoke your agent's access any time under Settings → Connected apps.

Bring your diagrams with you

Import a block diagram from ReliaSoft BlockSim (.rsgz / .rsr), Open-PSA XML, a Galileo fault tree, or an Excel workbook, from the Block diagrams page or through your agent. Every diagram also has a Fault tree view. Excel import works for datasets and RCM worksheets too.

Exact availability for repairable systems, free

Availability over time, over a mission and in the long run is now calculated exactly rather than simulated, on every plan. It can start from today, with some blocks already down or part-way through their life. Repairable diagrams also take repair crews shared between blocks, standby groups, condition-based and opportunistic maintenance, and safety functions with PFDavg and SIL.

Also new and improved

  • Design tab: how many copies of each block give the most reliable system within a budget, or the cheapest way to reach a target, including common-cause groups.
  • Outage history: load real up/down records and see the system's observed availability.
  • Demonstration test calculator: how many units, for how long, to demonstrate a reliability at a given confidence.
  • Download any diagram as Python: a standalone script that rebuilds the diagram with SurPyval and RePyability and gives the same numbers. It's free on every plan.
  • Share an RBD with anyone: read-only links for block diagrams, like models and datasets, now with an optional password and expiry.
  • Availability results you keep: a simulation's result is saved with the diagram and knows when a change makes it out of date. Simulation is part of Pro (or purchased credits).
  • Optimal overhaul interval for repairable systems fitted with Crow-AMSAA.
  • Start without a CSV: paste values, enter known parameters, or open a sample.
  • Coming from Weibull++? A "my censor column uses 1 = failed" checkbox.
  • Fleet alerts (Pro): an email when a fleet's expected failures cross a threshold or jump.
  • Faster: pages load only what they need, and the app starts quicker.
  • Fixes:
    • Standby diagrams now calculate.
    • Charts size their time axis to the system.
    • Duane growth models report correctly.
    • The assistant models redundant equipment in parallel.

As always, if something doesn't work the way you expect, reply to this email — it comes straight to me.

Derryn