Etld MCP Server runs on your own machine — the client starts it, so there is no endpoint to ping. 40 installs a week from npm. Last commit 27 Mar 2026.
Deterministic B2B Data Middleware. Waterfall parsing for CSV, EDI, SEC & Finance. No hallucinations.
Today is the operative word: we check Etld MCP Server every 15 minutes and re-read its code on every release. Watch it and you find out the day that stops being true.
This server runs on your own machine — install it with the package manager and the client starts it for you. Package name taken from the official registry entry.
claude mcp add etld-mcp-server -e 'ETLD_API_KEY=<ETLD_API_KEY>' -- npx -y etld-mcp-server
{
"mcpServers": {
"etld-mcp-server": {
"command": "npx",
"args": [
"-y",
"etld-mcp-server"
],
"env": {
"ETLD_API_KEY": "<ETLD_API_KEY>"
}
}
}
}
[mcp_servers.etld-mcp-server]
command = "npx"
args = ["-y", "etld-mcp-server"]
env = { ETLD_API_KEY = "<ETLD_API_KEY>" }
{
"mcpServers": {
"etld-mcp-server": {
"command": "npx",
"args": [
"-y",
"etld-mcp-server"
],
"env": {
"ETLD_API_KEY": "<ETLD_API_KEY>"
}
}
}
}
{
"servers": {
"etld-mcp-server": {
"type": "stdio",
"command": "npx",
"args": [
"-y",
"etld-mcp-server"
],
"env": {
"ETLD_API_KEY": "<ETLD_API_KEY>"
}
}
}
}
Put your own value in place of
<ETLD_API_KEY> (API Key for ETL-D services (Master Key or Provisioned Unkey)).
The author’s registry entry marks it as required.
Deterministic signed verification of numeric & financial claims for AI agents & spreadsheets.
42 free deterministic utilities: JSON, CSV, YAML, encoding, hashing, JWT, cron, formatters, CSS.
Pay-per-call tools for AI assistants: code, data, finance, spreadsheets, media, web, time.
Deterministic BaZi and Chinese metaphysics tools for AI agents: charts, divination, almanac.
MCP server for CSV/JSON data transformation using YAML rules
Forecast time series in CSV files: deterministic skforecast workflows and the script that ran.
Governance validation for Semantic Data Charter instances; returns OASIS XACML decisions.
Deterministic BaZi (Four Pillars) charts, Chinese almanac and saved FateTell charts.
Answers built from our own checks of this server.