OpenArg — Argentina public data

Name: OpenArg — Argentina public data
Author: colossus-lab

by colossus-labversion 1.0.0i★ –iRuns in the cloud

Registry nameorg.openarg/datos-publicos

Install

Overview

Description from the maker (original English)

Argentina's official public data (INDEC, BCRA, 38 portals): search, read tables, cited answers.

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 in the cloud
Transport: Streamable HTTP
Category: Search & AI memory
You need to fill in: Authorization

Install

Pick the AI app you use, then copy the settings.

Before you install

Basic checks: 1 of 1 passed
Runs on the maker’s server: what you ask it goes through their server.
You fill in yourself: Authorization

Values marked secret are keys to your account. Never share them or paste them into a chat.

You need

Runs in the cloudNothing to install; it connects over the internet

Which app do you use?

ClaudeClaude CodeCursorVS CodeChatGPT

Pick your app above. We remember it, so next time the button says “Install in …”.

This address needs a key in a request header, which the add-connector menu cannot set. Use Claude Code, Cursor or VS Code instead.

Run this in your terminal

claude mcp add --transport http datos-publicos https://mcp.openarg.org/mcp --header 'Authorization: your-value'

Fill in the empty values before running it.

Open in Cursor

Or copy the settings yourself

Paste into .cursor/mcp.json in your project, or ~/.cursor/mcp.json

{
  "mcpServers": {
    "datos-publicos": {
      "url": "https://mcp.openarg.org/mcp",
      "headers": {
        "Authorization": "your-value"
      }
    }
  }
}

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.

Open in VS Code

Or copy the settings yourself

Paste into .vscode/mcp.json in your project

{
  "servers": {
    "datos-publicos": {
      "type": "http",
      "url": "https://mcp.openarg.org/mcp",
      "headers": {
        "Authorization": "your-value"
      }
    }
  }
}

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 address needs a key in a request header, which the add-connector menu cannot set. Use Claude Code, Cursor or VS Code instead.

Your choice stays on this device in a cookie; no account needed.

Values you fill in

Authorization secret required HTTP header
Bearer followed by your free OpenArg key (oarg_sk_…). Get one at https://openarg.org/desarrolladores

These settings are generated from the maker’s registry entry. If the README says otherwise, follow the README.

What it can do

We have not read this server’s tool list yet; we check endpoints in rotation.

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 against the domain openarg.org (the registry checks domain ownership)
… 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 checked yet
Endpoint responds
Not checked yet; we check endpoints in rotation
… Not checked yet
Sign-in with OAuth
Not checked yet; we check endpoints in rotation
… Not checked yet
No hidden instructions in tool descriptions
Not checked yet; we read the tool list when we check the endpoint

Compared with others in Search & AI memoryi

More stars than 0% of the other 7254 servers in this category
Published to the registry more recently than 50% of the other 7254 servers in this category
Basic checks equal to or better than 100% of the other 7254 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 OpenArg — Argentina public data 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?

You need to fill in: Authorization

Does it run on my computer or in the cloud?

It runs in the maker’s cloud. Connect over the internet with nothing to install, but what you send passes through the maker’s servers.

Is it still maintained?

The GitHub repo last changed –, and the latest version (1.0.0) reached the registry 38 days ago.

Which apps can use it?

Apps that support MCP, such as Claude Desktop, Claude Code, Cursor and VS Code. It connects by URL, so apps that accept remote MCP servers work too, such as ChatGPT in developer mode.

What can I use instead?

In the same category: Context7, Codebase Memory, Exa

Alternatives

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Reading a card:★ GitHub starsiThree pillars: reviews · checks · usageiUpdated = latest version published to the registryi

Context7

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Computer or cloud★ 64,224MITUpdated today

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Exa

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Connect AI agents to Exa for web search, content fetching, and multi-step research.

Runs in the cloud★ 5,213MITUpdated last month

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.

OpenArg MCP — Argentina's public data, in your AI assistant

[mcp.openarg.org](https://mcp.openarg.org) · Español ↓

A remote Model Context Protocol server that connects Claude, Cursor, VS Code or your own agent to 33,000+ official Argentine public datasets from 38 government portals: INDEC (census, household survey, poverty, GDP, CPI), the Central Bank (BCRA), national ministries, provinces, municipalities and Congress.

Every answer comes with its source: the dataset title, the portal and a link to the official file.

Endpoint: https://mcp.openarg.org/mcp (Streamable HTTP)
Auth: Authorization: Bearer oarg_sk_…. Free key at openarg.org/desarrolladores
Cost: free

Quick start

Claude Code

claude mcp add --transport http openarg https://mcp.openarg.org/mcp \

--header "Authorization: Bearer oarg_sk_YOUR_KEY"

Cursor (~/.cursor/mcp.json) and other clients with mcpServers

"mcpServers": { "openarg": { "url": "https://mcp.openarg.org/mcp", "headers": { "Authorization": "Bearer oarg_sk_YOUR_KEY" } } } }

Claude Desktop (through mcp-remote)

"mcpServers": { "openarg": { "command": "npx", "args": ["-y", "mcp-remote", "https://mcp.openarg.org/mcp", "--header", "Authorization:${OPENARG_AUTH}"], "env": { "OPENARG_AUTH": "Bearer oarg_sk_YOUR_KEY" } } } }

VS Code (.vscode/mcp.json). The key is asked once and stored encrypted.

"inputs": [{ "type": "promptString", "id": "openarg-key", "description": "OpenArg key", "password": true }], "servers": { "openarg": { "type": "http", "url": "https://mcp.openarg.org/mcp", "headers": { "Authorization": "Bearer ${input:openarg-key}" } } } }

Your own agent. Put the key in OPENARG_API_KEY and tell your assistant:

Add the OpenArg MCP server following https://mcp.openarg.org/llms.txt. My key is in OPENARG_API_KEY. Test the connection with listar_fuentes.

Tools

All tools are read-only. Tool names and outputs are in Spanish; ask in any language.

Tool	Mode	What it does
`buscar_datasets`	data	Search the catalog: title, portal, official link and queryable tables
`describir_tabla`	data	Columns and types, row count, period covered, 5-row sample
`obtener_datos`	data	Rows as CSV (up to 500): pick columns, date range and equality filters. No SQL
`listar_fuentes`	data	Portals covered and dataset count per portal
`consultar_datos_publicos`	answers	A natural-language question answered by OpenArg, with sources and warnings

Data mode. Your assistant does the reasoning over the rows. It is fast (about 1 s) and allows 200 requests per month.

Answers mode. OpenArg picks the tables, cross-references them and checks the numbers against the source. It allows 10 questions per month.

Limits

	Per key
Data mode	200 requests/month, 30/min, up to 500 rows per request
Answers mode	10 questions/month, 2/min
Founders	2,000 requests and 100 questions per month

Quotas reset on the 1st of each month at 00:00 UTC. Once the monthly quota runs out, the server uses the key's credits if it has any; otherwise it answers HTTP 402 with the reset date. Founders are people who support OpenArg through colossuslab.org/support. If you need more for journalism, research or an NGO and can't contribute, write to devops@colossuslab.org. The full table is at mcp.openarg.org/limites.html. OpenArg reflects what each agency publishes. The answers mode uses a language model and can be wrong, so check the linked source before publishing a figure.

This repository

This is the code of the server behind mcp.openarg.org:

mcp_publico/core.py: pure logic, standard library only.
mcp_publico/server.py: MCP SDK and HTTP routes.
mcp_publico/site/: the website.

The server is stateless and makes no decisions about quotas or authentication. It forwards the user's key to the OpenArg API, which validates it, applies the quota and answers. Running it yourself only makes sense next to an OpenArg backend (BACKEND_URL). To just *use* the data, connect to the hosted endpoint above.

It is developed in colossus-lab/openarg_backend (mcp_publico/) and mirrored here.

Español

OpenArg MCP conecta tu asistente de IA a más de 33.000 datasets públicos oficiales de Argentina, de 38 portales: el INDEC (censos, EPH, pobreza, PIB, IPC), el BCRA, ministerios, provincias, municipios y el Congreso. Cada dato viene con su fuente oficial.

Conseguí tu clave gratis en openarg.org/desarrolladores.
Conectá https://mcp.openarg.org/mcp con el header Authorization: Bearer oarg_sk_…. Hay guías para cada cliente en mcp.openarg.org/empezar.html.
Preguntá: *"¿Cómo viene la tasa BADLAR en 2026?"*, *"Mostrame el gasto público por ministerio del último ejercicio"*.

Hay dos modos. El modo datos permite 200 pedidos por mes: tu asistente busca y lee las tablas. El modo respuestas permite 10 preguntas por mes: OpenArg arma la respuesta y verifica los números.

License

MIT. Un proyecto de Colossus Lab · devops@colossuslab.org

OpenArg — Argentina public data

Overview

PopNx MCP’s three pillars

What you can do with it

Install

Before you install

Values you fill in

What it can do

Basic checksi

Maker matches the repo

Still maintained

Has a licence

Endpoint responds

Sign-in with OAuth

No hidden instructions in tool descriptions

Compared with others in Search & AI memoryi

Common questions

Alternatives

Context7

Codebase Memory

Exa

README from the maker

OpenArg MCP — Argentina's public data, in your AI assistant

Quick start

Tools

Limits

This repository

Español

License