Diario Oficial MCP

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An MCP server that obtains the Colombian Diario Oficial daily PDF from the Imprenta Nacional public consultation portal (https://svrpubindc.imprenta.gov.co/diario/).

The server's job is acquisition: it downloads the official PDF and returns its file path plus metadata. Reading the document or building alerts on top of it is left to the calling agent / user.

Disclaimer. This is an unofficial, community project. It is not affiliated with, endorsed by, or supported by the Imprenta Nacional de Colombia. It works by reading the public consultation portal's current HTML, so it may break if the site changes. Use it responsibly and keep request volume modest against a government service.

Tools

Each download tool saves the PDF and returns:

{
  "numero": "53.524",
  "tipo": "Ordinaria",
  "fecha": "16/06/2026",
  "path": "/Users/you/Downloads/diario-oficial/DiarioOficial_53524_2026-06-16.pdf",
  "size_bytes": 13265672
}

Related MCP server: DJEN (Diário de Justiça)

Where PDFs are saved

In order of precedence:

1. The output_dir argument passed to the tool.

2. The DIARIO_OFICIAL_DIR environment variable.

3. Default: ~/Downloads/diario-oficial.

Use it (recommended: no clone)

You only need uv installed. uv fetches the code from git, sets up an isolated environment, and runs the server — no manual clone or install. Add this to your MCP config:

• Kiro: .kiro/settings/mcp.json (workspace) or ~/.kiro/settings/mcp.json (global)

• Claude Desktop: claude_desktop_config.json

{
  "mcpServers": {
    "diario-oficial": {
      "command": "uvx",
      "args": [
        "--from",
        "git+https://github.com/jkamilo81/diario-oficial-mcp",
        "diario-oficial-mcp"
      ],
      "env": {
        "DIARIO_OFICIAL_DIR": "/Users/you/Documents/diario-oficial"
      },
      "disabled": false,
      "autoApprove": ["list_recent_editions"]
    }
  }
}

Pin a released version by appending a tag, e.g. git+https://github.com/jkamilo81/diario-oficial-mcp@v0.1.0.

Verify it runs at all:

uvx --from git+https://github.com/jkamilo81/diario-oficial-mcp diario-oficial-mcp

(The process starts and waits for an MCP client on stdio; press Ctrl+C to exit.)

A colleague can then ask their agent things like "download today's Diario Oficial" or "get edition 53.510", then read or set up alerts on the saved PDF.

Local development

git clone https://github.com/jkamilo81/diario-oficial-mcp
cd diario-oficial-mcp
uv venv
uv pip install -e ".[dev]"
uv run diario-oficial-mcp   # run over stdio
pytest -q                   # smoke tests against the live portal

Config pointing at your local checkout instead of git:

{
  "mcpServers": {
    "diario-oficial": {
      "command": "uv",
      "args": ["run", "--directory", "/absolute/path/to/diario-oficial-mcp", "diario-oficial-mcp"]
    }
  }
}

How it works

The portal is a JSF/PrimeFaces application. Downloading an edition is a session-bound, three-step flow handled by client.py:

1. GET /diario/ — obtain the JSESSIONID cookie and JSF ViewState; the landing page already lists the most recent editions with per-row "Ver Diario" buttons.

2. POST the row button — returns a viewer page containing a PrimeFaces streamed-content URL.

3. GET that streamed-content URL (same session) — returns the PDF bytes.

Search by date or number is a POST of the search form that re-renders the editions table with the matching row, after which the same download flow runs.

Troubleshooting

• No editions returned / "Could not find ... ViewState". The portal HTML likely changed. The brittle parts are the PrimeFaces component ids in client.py (e.g. dtbDiariosOficiales:*:j_idt38). Run pytest -q to confirm and update the parsing.

• No edition found for date .... No edition was published that day (weekends/holidays), or the date is not in dd/MM/yyyy format.

• TLS / certificate errors. httpx bundles its own CA store, so this is usually a network/proxy issue rather than the portal.

• The server "hangs" when run manually. Expected — it waits for an MCP client on stdio. It's meant to be launched by Kiro / Claude Desktop.

Notes & limitations

• Depends on the portal's current HTML structure; see Troubleshooting.

• Editions are typically large scanned PDFs (10+ MB). Text extraction / OCR for reading or alerting is intentionally out of scope for this server.

• Be considerate with request volume against a government service.

License

MIT