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Bridge-TownMCP SERVER · OFFICIAL PROJECT

Bridge Town

75 tools by Bridge Town's own count, 19 of them named in its docs, for building financial models as code — commit Python model files, run them in an isolated sandbox, query the data, and write results into Google Sheets.

by Bridge-Town ↗Accounting, Invoicing & Bookkeeping✓ Official

LABSCO SUMMARY

Financial models as versioned code, run somewhere sealed.

Two things separate this from an assistant editing a spreadsheet. Models are Python files under version control with branches and pull requests, so a scenario is a branch rather than a copy of a file. And they execute in isolated containers with no outbound network, which is the answer to the obvious question about pointing an agent at financial data. The surface is large enough that the documented way in is search_tools rather than loading everything.

What it is

A hosted MCP server for Bridge Town, a git-versioned financial modelling platform aimed at FP&A work. An agent creates a project, commits Python model files, runs them in a cloud sandbox, queries the data, writes output into Google Sheets and branches scenarios — all as MCP calls, while the conversation stays in whatever client you already use.

What you get

  • Project and file lifecycle: create a project, list and read files, commit or patch model code, and describe the model — create_project, list_projects, list_files, read_file, commit_files, patch_file, describe_model
  • Execution: run a model in the sandbox and read back stdout, structured outputs, files or dashboards, with run history kept — run, get_run, list_runs
  • Data: connected sources listed, a Google Sheet imported as a snapshot, and SQL run against it — list_data_sources, ingest_data_source, query_data
  • Google Sheets as an output target — write a run's results into a cell range, then format and restructure the sheet for statement-grade layout — write_gsheet, format_gsheet, modify_gsheet_structure
  • Discovery built for a large surface: find the right tool for a task, fetch one tool's full schema, and read a bundled FP&A skill template — search_tools, get_tool, get_skill
  • Resources for health, skills and templates — health://status, skills://, skill://{name}, templates://, template://{name}

Requirements

A Bridge Town account. From Claude.ai it is OAuth and no token: add https://api.bridgetown.builders/mcp as a custom connector and approve the prompt. Other clients use a token generated at the connect page — tokens start with btk_ and travel in an Authorization: Bearer header. Transport is Streamable HTTP only; clients that need a spawned process use mcp-remote, or the repository's stdio shim, BRIDGE_TOWN_API_TOKEN=<YOUR_BRIDGE_TOWN_API_TOKEN> npx github:Bridge-Town/financial-modeling-mcp. Google Sheets access uses Google's drive.file scope, so only sheets you pick through the Picker or that Bridge Town created are reachable, and model runs execute in isolated containers with no outbound network.

Setup effort

One command plus a key — BRIDGE_TOWN_API_TOKEN=<YOUR_BRIDGE_TOWN_API_TOKEN> npx github:Bridge-Town/financial-modeling-mcp

See installation options