docpull

docpull

Security-hardened, browser-free crawler that turns static documentation sites into clean, AI-ready Markdown — fast.

docpull uses async HTTP (not Playwright) to fetch server-rendered pages, extracts main content, and writes clean Markdown with source-URL frontmatter — in seconds, with a small install footprint. It won't render JavaScript, but for the large class of docs that don't need it (API references, Python/Go stdlib, most dev-tool docs, OpenAPI specs, Next.js and Docusaurus builds), it is a fast, auditable, sandbox-friendly way to pipe documentation into an LLM context, a RAG index, or an offline archive. SSRF, XXE, DNS-rebinding, and CRLF-injection protections are on by default — a necessity when an AI agent is choosing the URLs.

Install

pip install docpull

# Optional extras
pip install 'docpull[llm]'           # tiktoken for token-accurate chunking
pip install 'docpull[trafilatura]'   # alternative extractor for noisy pages
pip install 'docpull[mcp]'           # run as an MCP server for AI agents
pip install 'docpull[all]'           # everything above

Quick start

# Crawl and save Markdown
docpull https://docs.example.com

# One page, no crawl — the fast path for agents
docpull https://docs.example.com/guide --single

# LLM-ready NDJSON with 4k-token chunks streamed to stdout
docpull https://docs.example.com --profile llm --stream | jq .

# Mirror a site for offline use
docpull https://docs.example.com --profile mirror --cache

Framework-aware extraction

docpull inspects each page before running the generic extractor and can pull content directly from framework data feeds:

Framework	Strategy
Next.js	Parses __NEXT_DATA__ JSON
Mintlify	__NEXT_DATA__ with Mintlify tagging
OpenAPI	Renders openapi.json / swagger.json into Markdown
Docusaurus	Detected and tagged; generic extractor produces Markdown
Sphinx	Detected from generator metadata / Read the Docs hosts and tagged; generic extractor produces Markdown

JS-only SPAs with no server-rendered content are detected and skipped with a clear reason (or, with --strict-js-required, reported as an error so agents can route elsewhere).

Agent-friendly features

• --single — fetch a single URL without discovery. Designed for tool loops.
• --stream — NDJSON one-record-per-line, flushed on every page, pipeable.
• --max-tokens-per-file N — split each page into token-bounded chunks on heading boundaries (exact counts with tiktoken, estimate without).
• --emit-chunks — write one file or record per chunk instead of per page.
• --strict-js-required — hard-fail on JS-only pages instead of silently skipping.
• --extractor trafilatura — swap in trafilatura for sites where the default heuristics struggle.

Python API

from docpull import fetch_one

ctx = fetch_one("https://docs.python.org/3/library/asyncio.html")
print(ctx.title, ctx.source_type)
print(ctx.markdown[:500])

Async streaming:

import asyncio
from docpull import Fetcher, DocpullConfig, ProfileName, EventType

async def main():
    cfg = DocpullConfig(
        url="https://docs.example.com",
        profile=ProfileName.LLM,  # chunked NDJSON output
    )
    async with Fetcher(cfg) as fetcher:
        async for event in fetcher.run():
            if event.type == EventType.FETCH_PROGRESS:
                print(f"{event.current}/{event.total}: {event.url}")
        print(f"Done: {fetcher.stats.pages_fetched} pages")

asyncio.run(main())

Single-page from an agent tool:

from docpull import Fetcher, DocpullConfig

async def tool_call(url: str) -> str:
    async with Fetcher(DocpullConfig(url=url)) as f:
        ctx = await f.fetch_one(url, save=False)
        return ctx.markdown or ctx.error or ""

Profiles