Agent-Native Calendar
by BuilderIO
Agent-Native Google Calendar - manage events, sync, and public booking
Runs in the cloud★ 7,620MITUpdated 2 months ago
Install
Achlens
Overview
Description from the maker (original English)
Local-first MCP server and CLI for validating and generating synthetic ACH files.
PopNx MCP’s three pillars
These three are never merged into one score: opinions, measurements and popularity are different things.
- User voiceiNo reviews yetReviews open together with accounts in a later step
- Our basic checksi1 of 1 passedChecked from public information; code not scanned yet
- UsageiNot measured yet★ –
What you can do with it
We have not written a plain-language summary for this one yet. Below are the facts we read from the registry.
- Connection: Runs on your computer
- Transport: stdio
- Category: Docs, sheets & office work
Install
Pick the AI app you use, then copy the settings.
Before you install
- Basic checks: 1 of 1 passed
- Runs on your computer with your user’s permissions (files, network, apps).
- The registry lists no key to fill in.
You need
- PyPIPython’s uv installed (for the uvx command)
Which app do you use?
Pick your app above. We remember it, so next time the button says “Install in …”.
Open Claude Desktop → Settings → Developer → Edit Config, and paste this into claude_desktop_config.json
{
"mcpServers": {
"achlens": {
"command": "uvx",
"args": [
"achlens"
]
}
}
}Run this in your terminal
claude mcp add achlens -- uvx achlensOr copy the settings yourself
Paste into .cursor/mcp.json in your project, or ~/.cursor/mcp.json
{
"mcpServers": {
"achlens": {
"command": "uvx",
"args": [
"achlens"
]
}
}
}Your browser asks to open the app, then the app shows the settings and asks you to confirm. Key values are left empty for you to fill in.
Or copy the settings yourself
Paste into .vscode/mcp.json in your project
{
"servers": {
"achlens": {
"type": "stdio",
"command": "uvx",
"args": [
"achlens"
]
}
}
}Your browser asks to open the app, then the app shows the settings and asks you to confirm. Key values are left empty for you to fill in.
This one runs on your computer, and ChatGPT can only connect to servers on the internet. Pick another app.
Your choice stays on this device in a cookie; no account needed.
These settings are generated from the maker’s registry entry. If the README says otherwise, follow the README.
What it can do
Runs on your computer; the tool list appears in your AI app after you install it.
Basic checksi
We check information anyone can see; we have not read the code. Checks that do not apply are left out of the count. · Checked Nov 7, 2026
- ✓ Pass
Maker matches the repo
The registry name was verified with the GitHub account mscott9160-web, which owns the repo
- … Not checked yet
Still maintained
We have not read this repo from GitHub yet
- … Not checked yet
Has a licence
We have not read this repo from GitHub yet
- – Not applicable
Endpoint responds
This one runs on your computer; there is no internet endpoint
- – Not applicable
Sign-in with OAuth
Runs on your computer and uses local settings instead
- … Not checked yet
No hidden instructions in tool descriptions
Runs on your computer; we can only read tool lists from internet endpoints
Compared with others in Docs, sheets & office worki
- More stars than 0% of the other 3529 servers in this category
- Published to the registry more recently than 37% of the other 3529 servers in this category
- Basic checks equal to or better than 100% of the other 3529 servers in this category
Compared with every active server in this category in the registry. Stars count only when the publisher owns the repo.
Common questions
Is Achlens safe?
It passed 1 of 1 applicable basic checks. We have not read the code. Before adding a key or token, see what access the server asks for and use a key with only the permissions you need.
What keys or codes does it need?
The registry does not list a required key, though some servers ask you to sign in on first use.
Does it run on my computer or in the cloud?
It runs on your computer. Your AI app starts it when needed, and data does not pass through the maker’s servers (unless it calls an online service itself).
Is it still maintained?
The GitHub repo last changed –, and the latest version (0.1.2) reached the registry 2 months ago.
Which apps can use it?
Apps that support MCP, such as Claude Desktop, Claude Code, Cursor and VS Code. You also need Python (uv) on your computer.
What can I use instead?
In the same category: Agent-Native Calendar, Excel MCP Server, MCP Server for Excel
Alternatives
Servers in the same category from other makers, sorted by stars.
Reading a card:★ GitHub starsiThree pillars: reviews · checks · usageiUpdated = latest version published to the registryi
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Install
MCP Server for Excel
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Excel automation for AI - Sheets, Power Query, DAX, VBA, Tables, Ranges and more. Windows only.
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Install
README from the maker
Open the README
Copied from the maker’s repo as written. PopNx MCP has not reviewed or endorsed it. HTML, images and scripts are removed. Links lead off this site.
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 syncuv 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 serveMCP Client Setup
Install the published package with uvx; it starts the server locally over stdio and does not transmit ACH files.
VS Code and Copilot
Create .vscode/mcp.json in your workspace:
{"servers": { "achlens": { "type": "stdio", "command": "uvx", "args": ["achlens"] } } }
Claude Desktop
Add the following entry to the mcpServers object in Claude Desktop's MCP configuration:
{"achlens": { "command": "uvx", "args": ["achlens"] } }
By default, MCP tools accept ACH content directly but cannot read local paths. To allow read-only access to a specific directory, set ACHLENS_ALLOWED_ROOTS in the server environment to that directory. Use synthetic ACH data only.
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 syncuv run achlens --help PYTHONPATH=. uv run pytest -q uv run ruff check . uv run ruff format --check . uv run mypy --strict src
Without uv
The CLI and test suite also work with plain pip:
pip install -e . pytestachlens --help achlens validate tests/fixtures/golden/sample_valid.ach achlens generate --sec PPD --entries 5 --seed 7 PYTHONPATH=. pytest
Set PYTHONPATH=. from the repository root when running tests so fixture and script imports resolve. In Windows PowerShell, use $env:PYTHONPATH = "."; pytest.
Never add real payment data, account numbers, or ACH files to this repository.