xProof OpenClaw Skill

# xProof OpenClaw Skill Certify files on MultiversX blockchain via [xProof](https://xproof.app) — the on-chain notary for AI agents. ## Install Give OpenClaw the URL to this repo and select the `xproof` skill: ``` https://github.com/jasonxkensei/xproof-openclaw-skill ``` ## What It Does - **Certify** any file by anchoring its SHA-256 hash on MultiversX blockchain - **Verify** existing proofs with full blockchain details - **Batch certify** up to 50 files in a single call - Files never leave your machine — only the hash is sent ## Quick Start ```bash export XPROOF_API_KEY=pm_your_key ./xproof/scripts/certify.sh path/to/file.pdf ``` ## Structure ``` xproof/ ├── SKILL.md # Skill definition + instructions ├── references/ │ └── api-reference.md # Full API documentation └── scripts/ └── certify.sh # One-command certification ``` ## Protocols Supports x402 (HTTP-native payments), ACP, MCP, and MX-8004. ## Cost $0.05 per certification. ## Links - [xProof Platform](https://xproof.app) - [GitHub Action](https://github.com/marketplace/actions/xproof-certify) - [API Docs](https://xproof.app/docs)