AILANG Parse MCP server

AILANG Parse

Universal document parsing and generation in AILANG. Extracts structured content from DOCX, PPTX, XLSX, PDF, and image files into JSON and markdown — and writes documents back out in 9 formats. To author a document, write Markdown and convert it; see Writing documents in Markdown.

Office formats (DOCX, PPTX, XLSX) use deterministic XML parsing — no AI, no cloud, instant results. PDFs default to the deterministic pdftotext backend (poppler) — also no AI, no cloud — with docling and liteparse as local alternatives and pluggable AI (Gemini, Claude, local Ollama) for scanned/image-only pages via --pdf-backend ai. Images delegate to whatever AI model you plug in. AILANG Parse is AI-agnostic: swap --pdf-backend/--ai to change the backend, zero code changes.

Install

Two routes; both put a docparse command on your PATH, and both write output next to the file you parse (--output-dir DIR or DOCPARSEOUTPUTDIR to change that).

Already have AILANG? (0.42.0+ of this package, AILANG v0.40.0 dev or later)

ailang install sunholo/ailang_parse
docparse report.docx

The package's [bin] table gives you a shim in ~/.ailang/bin that runs straight out of the registry cache: parse one file, or --convert it. It is deliberately the thin path — describe/summarize, batch mode, PDF backends and --install-backends are not on it (see below). ailang bin list / ailang bin uninstall docparse manage it.

Otherwise, or for the full CLI:

curl -fsSL https://www.sunholo.com/ailang-parse/install.sh | sh

Fetches the published package (~400 KB), installs the AILANG runtime if you do not have it, and links the full docparse wrapper (plus docparse-audit and docparse-render) into ~/.local/bin. --version, --prefix and --uninstall are supported; re-running is a no-op. If you install both, ailang install tells you which one docparse resolves to.

That covers every deterministic format. PDF needs two more things, and they are easy to miss:

brew install poppler        # pdftotext, the default PDF backend
                            # (apt install poppler-utils on Debian/Ubuntu)
docparse --install-backends # docling + liteparse, for scans and layout

--install-backends matters even if you never pass --pdf-backend: when pdftotext finds no text layer the parser escalates to docling on its own, so without it a scanned PDF fails on the default backend. AI backends authenticate with Google ADC (gcloud auth application-default login), not an API key.

Contributors: install from a clone instead

Shortened. The full README is on GitHub.