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OCR Space: Free OCR API

by Juguangyuan · GitHub ↗ · v1.0.0 · MIT-0
cross-platform ✓ Security Clean
1258
Downloads
2
Stars
10
Active Installs
1
Versions
Install in OpenClaw
/install ocr-space
Description
调用 OCR.space 免费 API 识别图片中的文字
Usage Guidance
This skill appears to do what it says: it reads images and uploads them to OCR.space using the free test key. Before installing, consider: (1) it will transmit image data to a third-party server — don't send sensitive images unless you accept that. (2) You need Python packages 'requests' and 'Pillow' installed; SKILL.md doesn't list them, so install them (pip install requests pillow) or run the script in a controlled environment. (3) If you plan to use a paid API key, remove the hardcoded 'helloworld' and provide your key securely (avoid committing it into the file). (4) Test the script locally to confirm behavior and network calls before allowing any agent to invoke it autonomously.
Capability Analysis
Type: OpenClaw Skill Name: ocr-space Version: 1.0.0 The skill bundle provides legitimate OCR functionality by interfacing with the OCR.space API. The Python script (ocr_space.py) uses the service's documented 'helloworld' test key and performs standard image processing and network requests to extract text from images. No evidence of malicious intent, data exfiltration, or prompt injection was found; the code logic aligns perfectly with the stated purpose in SKILL.md.
Capability Assessment
Purpose & Capability
Name/description match implementation: the script posts images to https://api.ocr.space/parse/image using the free test key ('helloworld') and returns parsed text. No unrelated services, binaries, or credentials are requested.
Instruction Scope
SKILL.md and the script confine actions to reading the provided image path (or accepting base64), optionally compressing it, and POSTing it to the OCR.space API. There are no instructions to read other system files, environment secrets, or to exfiltrate data to unexpected endpoints.
Install Mechanism
No install spec (instruction-only) and no network downloads, which is low risk. However the included Python script requires third-party packages ('requests' and Pillow) that are not declared in the metadata or SKILL.md; the skill will fail or raise import errors unless those are installed.
Credentials
No environment variables or credentials are required. The script hardcodes API_KEY='helloworld' (the documented free test key) which matches the SKILL.md. If a user wants to use a private paid key they would need to change the script or add a mechanism to supply it.
Persistence & Privilege
Skill is not always-enabled, does not request persistent platform-wide privileges, and does not modify other skills or global agent settings.
How to Use
  1. Make sure OpenClaw is installed (local or Docker)
  2. Run the install command in chat: /install ocr-space
  3. After installation, invoke the skill by name or use /ocr-space
  4. Provide required inputs per the skill's parameter spec and get structured output
Version History
v1.0.0
- Initial release with OCR.text recognition for images. - Supports 20+ languages including Chinese, English, Japanese, and Korean. - Uses the free OCR.space API—no registration or API key required for testing. - Daily limit: 500 requests, 5 MB per file (auto-compression). - Usable via command line or Python import.
Metadata
Slug ocr-space
Version 1.0.0
License MIT-0
All-time Installs 10
Active Installs 10
Total Versions 1
Frequently Asked Questions

What is OCR Space: Free OCR API?

调用 OCR.space 免费 API 识别图片中的文字. It is an AI Agent Skill for Claude Code / OpenClaw, with 1258 downloads so far.

How do I install OCR Space: Free OCR API?

Run "/install ocr-space" in the OpenClaw or Claude Code chat to install it in one step — no extra setup required.

Is OCR Space: Free OCR API free?

Yes, OCR Space: Free OCR API is completely free, licensed under MIT-0. You can download, install and use it at no cost.

Which platforms does OCR Space: Free OCR API support?

OCR Space: Free OCR API is cross-platform and runs anywhere OpenClaw / Claude Code is available (cross-platform).

Who created OCR Space: Free OCR API?

It is built and maintained by Juguangyuan (@juguangyuan520-dotcom); the current version is v1.0.0.

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