BarrelBrain MCP

Barrel Brain's tools for any MCP client: petroleum-engineering calculation as C# you write and run here, with the same engine and example catalog as the Barrel Brain desktop app.

Endpoint: https://mcp.barrelbrain.ai/

Connect

Add it to your MCP client as a remote server over Streamable HTTP. Calls need a bearer token: Authorization: Bearer <token>. Account sign-in is on its way.

{
  "mcpServers": {
    "barrelbrain": {
      "url": "https://mcp.barrelbrain.ai/",
      "headers": { "Authorization": "Bearer <token>" }
    }
  }
}

Then start with barrelbrain_readme_get; app_tool_list lists the tools by toolset.

Toolsets

core

How to work here, the tools by toolset, and the versions that answered. Start with barrelbrain_readme_get.

barrelbrain_readme_get Start here.
app_tool_list Lists this server's tools, grouped by toolset: each toolset's name, what it is for, and its tools with their one-line descriptions.
app_version_get Returns the server's build, and the scripting in use: the script engine, each calculation library with its package version (Team76.Engineering), and the example set.

scripting

Write and run C# against Team76.Engineering: search the scripting API and the example catalog, check a script, run it, and read typed results. Start with scripting_readme_get.

script_api_get Discover the `ctx` API a `.script` can call — the curated context, its `ScriptResult` return type, and every domain facade reachable via `ctx.Get<T>()`.
script_api_search Find what a script can call by concept, when you don't know the class name: "bubble point", "decline fit", "Bourdet derivative", "ESP stages".
scripting_readme_get How to script in this app, read once before writing a script: the order to work in (search the API and the examples, write, check, run), how results come back, units, and the sandbox's limits.
script_example_list Enumerate every curated in-process `.script` example in the bundled catalog, with metadata (name, title, category, description, tags) — but not the script text; `script_example_get` has that.
script_example_get Retrieve one curated `.script` example in full by its exact name — metadata plus the complete in-process script source (a class implementing `IAppScript`).
script_example_search Find curated `.script` examples by keyword, tag, concept, or description when you don't know the exact name.
script_validate Compile a script without running it, and return its errors with line numbers.
script_code_run Run a script and return what it produced: blocks, the run as the desktop's result tabs show it (a table block per ScriptTable, a chart block per ScriptChart (series, axis titles, line or scatter, xScale and yScale linear or log; on a log axis a point at or below zero is left out), one object block for the rest of the result, a text block for a dump or an error), how long it took, and the versions it ran on.

Desktop only

Anything that needs a workspace (decks, grids, summaries, queries and dashboards over a model, files) runs in the Barrel Brain desktop app.