NFT Skill for OpenClaw

Allows an OpenClaw agent to autonomously generate art, mint NFTs, list on marketplace, monitor sales, evolve based on milestones, and post social updates.

When to Use This Skill

• User asks to generate AI art or procedural digital art
• User wants to mint an NFT on Base
• User wants to list an NFT for sale on the marketplace
• User wants to monitor on-chain NFT sales
• User wants to evolve art style after a sales milestone
• User wants to tweet or announce a new NFT drop on X (Twitter)
• User mentions "NFT", "mint", "Base blockchain", "AI art", "digital art", or "marketplace listing"

Setup (First Run)

Before first use, ensure the project is built:

cd {baseDir} && npm install && npm run build

The user must populate a .env file with their keys:

cp {baseDir}/.env.example {baseDir}/.env

Required variables: BASE_RPC_URL, BASE_PRIVATE_KEY, NFT_CONTRACT_ADDRESS, MARKETPLACE_ADDRESS, PINATA_API_KEY, PINATA_SECRET, LLM_PROVIDER.

To deploy contracts (one-time setup):

cd {baseDir} && npm run deploy:testnet   # Base Sepolia testnet
cd {baseDir} && npm run deploy:mainnet   # Base mainnet

Contract addresses are automatically written to .env after deployment.

Tools

All tools output JSON. The agent should look for the final line matching {"status":"success",...} or {"status":"error",...}.

1. generate — Generate Art

Generate new art and upload to IPFS.

cd {baseDir} && npm run cli -- generate --generation <number> --theme "<description>"

Parameters:

Output:

{"status": "success", "result": {"imagePath": "...", "metadata": {...}, "metadataUri": "Qm..."}}

Example:

cd {baseDir} && npm run cli -- generate --generation 1 --theme "neon cyberpunk city"

2. mint — Mint NFT

Mint a new ERC721 token on Base with an IPFS metadata URI.

cd {baseDir} && npm run cli -- mint --metadata-uri <uri>

Parameters:

Output:

{"status": "success", "result": {"tokenId": "1", "txHash": "0x...", "blockNumber": 12345, "gasUsed": "80000"}}

Example:

cd {baseDir} && npm run cli -- mint --metadata-uri QmXyz123abc

3. list — List NFT on Marketplace

List a minted NFT for sale on the marketplace.

cd {baseDir} && npm run cli -- list --token-id <id> --price <eth>

Parameters:

Output:

{"status": "success", "result": {"success": true, "price": "0.05", "txHash": "0x..."}}

Example:

cd {baseDir} && npm run cli -- list --token-id 1 --price 0.05

4. monitor — Monitor Sales

Watch for sales events in real-time. Streams JSON to stdout until interrupted (Ctrl+C).

cd {baseDir} && npm run cli -- monitor [--from-block <number>]

Parameters:

Output (per sale):

{"status": "sale", "result": {"buyer": "0x...", "tokenId": "1", "price": "0.05", "txHash": "0x...", "blockNumber": 12345}}

Example:

cd {baseDir} && npm run cli -- monitor --from-block 12000000

5. evolve — Evolve Agent

Trigger the evolution logic when sales milestones are met.

cd {baseDir} && npm run cli -- evolve --proceeds <eth> --generation <number> --trigger "<reason>"

Parameters:

Output:

{"status": "success", "result": {"previousGeneration": 1, "newGeneration": 2, "improvements": [...], "newAbilities": [...]}}

Example:

cd {baseDir} && npm run cli -- evolve --proceeds "0.5" --generation 1 --trigger "Sold 3 NFTs"

6. tweet — Post to X

Post an update to X (Twitter).

cd {baseDir} && npm run cli -- tweet --content "<text>"

Parameters:

Output:

{"status": "success", "result": "tweet_id_string"}

Example:

cd {baseDir} && npm run cli -- tweet --content "New AI art drop incoming! #AIArt #Base"

Typical Workflow

A full autonomous cycle the agent should follow:

1. Generate art with a theme → receive metadata URI
2. Mint the NFT with that URI → receive token ID
3. List the NFT on the marketplace at a price
4. Tweet about the new listing
5. Monitor sales for purchase events
6. Evolve when a sales milestone is reached
7. Repeat from step 1 with the new generation number

Error Handling

• If a command returns {"status":"error",...}, read the message field and report it to the user.
• Common issues: missing .env variables, insufficient wallet balance, network RPC errors.
• For wallet balance issues, suggest the user funds their Base wallet.
• For missing env vars, remind the user to populate {baseDir}/.env.

Environment Variables