Server data from the Official MCP Registry
Local-first MCP server and CLI for validating and generating synthetic ACH files.
About
Local-first MCP server and CLI for validating and generating synthetic ACH files.
Security Report
Valid MCP server (1 strong, 1 medium validity signals). No known CVEs in dependencies. Imported from the Official MCP Registry. 1 finding(s) downgraded by scanner intelligence.
4 files analyzed · 1 issue found
Security scores are indicators to help you make informed decisions, not guarantees. Always review permissions before connecting any MCP server.
How to Install
Add this to your MCP configuration file:
{
"mcpServers": {
"io-github-mscott9160-web-achlens": {
"args": [
"achlens"
],
"command": "uvx"
}
}
}Documentation
View on GitHubFrom the project's GitHub README.
achlens
achlens is a local-first Python MCP server and CLI for inspecting synthetic ACH files. It parses fixed-width records, validates structure and control totals, explains findings, masks sensitive fields, repairs derived controls, and generates deterministic test files. It never transmits ACH files or makes bank/network calls.
Use synthetic data only. This project is not a bank gateway, compliance advisor, or transmission system.
Quick Start
uv sync
uv run achlens --help
uv run achlens validate tests/fixtures/golden/sample_valid.ach
uv run achlens generate --sec PPD --entries 5 --seed 7 > synthetic.ach
In Windows PowerShell, use an explicit ASCII encoding because PowerShell's
default > redirection can write UTF-16 output that is not valid ACH text:
uvx achlens generate --sec PPD --entries 5 --seed 7 |
Set-Content -Encoding ascii synthetic.ach
Run the MCP server over stdio:
uv run achlens serve
The MCP server exposes validation, summaries, parsed-record paging, control explanations, routing checks, code lookup, synthetic generation, and control repair. See docs/tools.md for the current tool surface.
Sensitive fields are masked by default. Configure ACHLENS_ALLOWED_ROOTS to
enable MCP path inputs; otherwise provide file content directly. See
SECURITY.md for the data and write boundaries.
Development
This project uses uv.
uv sync
uv run achlens --help
uv run pytest -q
uv run ruff check .
uv run ruff format --check .
uv run mypy --strict src
Never add real payment data, account numbers, or ACH files to this repository.
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