niche

What This Skill Does

The Niche skill for OpenClaw is a specialized marketplace agent designed for the secure, decentralized trading of physical collectibles. It bridges the gap between digital payments and physical inspections by utilizing a partial-deposit escrow system on the Base Sepolia network. Unlike traditional online marketplaces, Niche allows buyers to "lock in" a card with a small USDC deposit, securing the item while retaining the right to physically inspect the asset before committing to the full purchase price. The skill leverages Supabase Edge Functions for all heavy-duty logic, keeping the CLI client lightweight while ensuring all on-chain operations—such as token locking and gas-sponsored transactions—are executed securely.

Installation

To integrate this skill into your OpenClaw agent, use the following command: clawhub install openclaw/skills/skills/clementsutjiatma/niche After installation, ensure you run niche login to initialize your passkey-based identity. The system will sync your wallet and session state automatically, allowing you to begin searching and managing listings immediately.

Use Cases

• Physical Asset Protection: Use Niche to secure high-value trading cards (like Pokemon or Magic: The Gathering) without worrying about online scams, thanks to in-person inspection requirements.
• Low-Barrier Transactions: If you are a buyer, you can reserve cards with a minimal deposit (e.g., $10) instead of tying up the full purchase amount in a marketplace listing.
• Automated Trading Management: Sellers can use the agent to automate the posting of inventory, track deposits, and handle the release of escrow funds via simple CLI commands.

Example Prompts

1. "Niche, search for all Pokemon cards priced under $100 and display the top results in my terminal."
2. "I want to list my Shadowless Charizard for $500 with a $50 minimum deposit requirement. Use the Niche skill to create the posting."
3. "Check the status of my active deposits. Do I have any pending items that need to be picked up today?"

Tips & Limitations

• Authentication: Always perform your initial setup via the hosted UI link provided by the tool to ensure your Passkeys and wallet are correctly generated.
• Security: While the escrow system is on-chain, remember that the physical inspection is the ultimate verification step. Never finalize the transaction on the app unless you have confirmed the condition of the card in person.
• Gas: The skill uses gas-sponsored transactions, meaning you don't need to manually manage ETH balances, making it highly accessible for beginners.
• Dependency: Because the backend is hosted on Supabase, the skill requires an active internet connection to communicate with the Edge Functions; it will not function in offline mode.