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Install in OpenClaw
/install html-ocr
Description
OCR for HTML pages containing image-embedded or scanned content. Uses MinerU to extract text from images within HTML files and web pages. Features: OCR extra...
README (SKILL.md)
HTML OCR
Use OCR to extract text from HTML files that contain scanned images or image-embedded content using MinerU.
Install
npm install -g mineru-open-api
# or via Go (macOS/Linux):
go install github.com/opendatalab/MinerU-Ecosystem/cli/mineru-open-api@latest
Quick Start
# OCR extraction from local HTML file (requires token)
mineru-open-api extract page.html --ocr -o ./out/
# With VLM model for better accuracy
mineru-open-api extract page.html --ocr --model vlm -o ./out/
Authentication
Token required:
mineru-open-api auth # Interactive token setup
export MINERU_TOKEN="your-token" # Or via environment variable
Create token at: https://mineru.net/apiManage/token
Capabilities
- Supported input: local .html file
- OCR requires
extractwith token — not available inflash-extract - Use
--ocrflag to enable OCR on image-embedded content in HTML - Use
--model vlmfor complex or mixed-content pages
Notes
- HTML is NOT supported by
flash-extract; useextractwith token - If the HTML has normal text content, OCR is not needed — use
html-extractinstead - Output goes to stdout by default; use
-o \x3Cdir>to save to a file or directory - All progress/status messages go to stderr; document content goes to stdout
- MinerU is open-source by OpenDataLab (Shanghai AI Lab): https://github.com/opendatalab/MinerU
Usage Guidance
This skill appears to do what it says: it runs the MinerU CLI and requires a MINERU_TOKEN. Before installing, consider: (1) MINERU_TOKEN is sensitive — only provide it if you trust MinerU/mineru-open-api and the organization. (2) OCRing local HTML/images will likely upload those files to MinerU servers — avoid sending sensitive documents. (3) Global npm packages and go installs execute third-party code at install time; review the mineru-open-api package source or GitHub repo (https://github.com/opendatalab/MinerU) if you need higher assurance. (4) If you decide to proceed, run the CLI in an isolated environment/container and grant the token minimal scope; revoke the token if you suspect misuse.
Capability Analysis
Type: OpenClaw Skill
Name: html-ocr
Version: 0.4.0
The skill bundle provides instructions and metadata for using the MinerU OCR tool (developed by OpenDataLab) to process HTML files. It correctly identifies dependencies on the legitimate 'mineru-open-api' package and requires a standard API token (MINERU_TOKEN) for its cloud-based extraction features. No malicious code, data exfiltration, or prompt injection attempts were found in SKILL.md or _meta.json.
Capability Assessment
Purpose & Capability
The skill is an instruction-only wrapper around the mineru-open-api CLI and declares the exact binary and MINERU_TOKEN credential it needs. The declared dependencies (mineru-open-api via npm or Go) and the MINERU_TOKEN credential align with the stated HTML OCR purpose.
Instruction Scope
SKILL.md instructs the agent to run mineru-open-api on local HTML files and to authenticate with MINERU_TOKEN or interactive auth. This stays within the OCR purpose. Note: running the CLI will upload page content/images to MinerU's service (expected for a remote OCR API), so private/sensitive content may be transmitted externally.
Install Mechanism
Install options are npm (mineru-open-api) or go install from a GitHub path. These are expected for a CLI tool and are not downloads from arbitrary URLs. Installing a global npm package or running go install executes third-party code at install time — standard but worth auditing if you don't trust the publisher.
Credentials
The only required environment variable is MINERU_TOKEN (declared as primaryEnv). That is proportionate for an API-backed OCR CLI. No unrelated credentials or extra config paths are requested.
Persistence & Privilege
The skill is user-invocable, not always-on, and does not request special system persistence or cross-skill configuration. It uses normal CLI invocation and environment token-based auth.
How to Use
- Make sure OpenClaw is installed (local or Docker)
- Run the install command in chat:
/install html-ocr - After installation, invoke the skill by name or use
/html-ocr - Provide required inputs per the skill's parameter spec and get structured output
Version History
v0.4.0
SEO: expand description for better ClawHub vector search discovery
v0.3.0
Rollback to original version
v0.2.0
SEO optimization v0.2.0
v1.0.1
Fix: declare MINERU_TOKEN credential in metadata
v1.0.0
HTML OCR - use OCR to extract text from HTML files that contain scanned images or image-embedded con
Metadata
Frequently Asked Questions
What is HTML OCR?
OCR for HTML pages containing image-embedded or scanned content. Uses MinerU to extract text from images within HTML files and web pages. Features: OCR extra... It is an AI Agent Skill for Claude Code / OpenClaw, with 173 downloads so far.
How do I install HTML OCR?
Run "/install html-ocr" in the OpenClaw or Claude Code chat to install it in one step — no extra setup required.
Is HTML OCR free?
Yes, HTML OCR is completely free, licensed under MIT-0. You can download, install and use it at no cost.
Which platforms does HTML OCR support?
HTML OCR is cross-platform and runs anywhere OpenClaw / Claude Code is available (cross-platform).
Who created HTML OCR?
It is built and maintained by mzlzyCA (@mzlzyca); the current version is v0.4.0.
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