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Install in OpenClaw
/install ntriq-x402-alt-text
Description
Generate WCAG-compliant alt text and detailed image descriptions for accessibility. Pay $0.01 USDC via x402.
Usage Guidance
This skill appears to do what it says (generate alt text) but it requires you to pay per call and to send image data to a third-party endpoint. Before installing: (1) Ask the publisher how the X-PAYMENT header is obtained and stored — the skill metadata does not declare any credential or env var for that token. Avoid pasting private payment keys into an agent prompt. (2) Consider privacy: any image you send (including base64) will go to x402.ntriq.co.kr — confirm their data-retention and sharing policy and whether images are stored. (3) If you need offline or privacy-preserving processing, prefer a local alt-text solution or a provider with documented auth flow. (4) Verify TLS and domain authenticity and test with non-sensitive images and a small payment before sending real data. If the publisher cannot explain how payments are securely handled (and how to supply the X-PAYMENT header without exposing secrets), treat the skill as risky.
Capability Analysis
Type: OpenClaw Skill
Name: ntriq-x402-alt-text
Version: 1.0.0
The skill bundle provides documentation for an AI agent to interact with a paid image-to-alt-text API service. It specifies a legitimate use case (WCAG compliance) and uses the x402 protocol for transparent micropayments ($0.01 USDC) via the endpoint https://x402.ntriq.co.kr/alt-text. No malicious code, data exfiltration, or deceptive prompt injection was identified.
Capability Tags
Capability Assessment
Purpose & Capability
Name/description (alt text generator) match the instructions: POST an image (URL or base64) to the provider and receive WCAG-compliant alt_text and description. No unrelated capabilities or creds are requested.
Instruction Scope
Runtime instructions direct the agent to upload image data (URL or base64) to https://x402.ntriq.co.kr/alt-text and to include an X-PAYMENT header. Uploading arbitrary images to a third-party service can leak private or sensitive images; the SKILL.md does not constrain what can be uploaded or warn about privacy. The payment header requirement is referenced but not explained (how to obtain/populate it), creating ambiguity in agent behavior.
Install Mechanism
Instruction-only skill with no install spec or code files; nothing is written to disk and no third-party packages are installed, which is low-risk from an install perspective.
Credentials
SKILL.md requires an X-PAYMENT header for a paid call but the registry metadata lists no required environment variables or primary credential. This is an inconsistency: the agent will need a payment token/secret but the skill doesn't declare where it should come from. That gap could lead the agent to prompt the user for a sensitive payment token or to handle it insecurely.
Persistence & Privilege
always is false and there is no install-time persistence or modification of other skills. The skill does not request elevated or permanent presence.
How to Use
- Make sure OpenClaw is installed (local or Docker)
- Run the install command in chat:
/install ntriq-x402-alt-text - After installation, invoke the skill by name or use
/ntriq-x402-alt-text - Provide required inputs per the skill's parameter spec and get structured output
Version History
v1.0.0
ntriq-x402-alt-text 1.0.0
- Initial release.
- Generate concise, WCAG-compliant alt text (≤125 characters) and detailed image descriptions for accessibility.
- Supports image input via URL or base64, with optional language selection.
- Pay $0.01 USDC per API call using x402 protocol on Base mainnet.
Metadata
Frequently Asked Questions
What is Ntriq X402 Alt Text?
Generate WCAG-compliant alt text and detailed image descriptions for accessibility. Pay $0.01 USDC via x402. It is an AI Agent Skill for Claude Code / OpenClaw, with 65 downloads so far.
How do I install Ntriq X402 Alt Text?
Run "/install ntriq-x402-alt-text" in the OpenClaw or Claude Code chat to install it in one step — no extra setup required.
Is Ntriq X402 Alt Text free?
Yes, Ntriq X402 Alt Text is completely free, licensed under MIT-0. You can download, install and use it at no cost.
Which platforms does Ntriq X402 Alt Text support?
Ntriq X402 Alt Text is cross-platform and runs anywhere OpenClaw / Claude Code is available (cross-platform).
Who created Ntriq X402 Alt Text?
It is built and maintained by ntriq (@ntriq-gh); the current version is v1.0.0.
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