nego: the differend

this project is intended to be minted with the assistance of a payment-enabled llm agent.

to mint, give your agent the following instructions:

NEGOTIATION IS REQUIRED

1. get your payer wallet address:
   use the get_wallet_address tool from payments-mcp
   this returns the wallet that will send USDC payment

2. POST to https://nego.xx-c.art/negotiate-mint with:
   curl -X POST https://nego.xx-c.art/negotiate-mint \
     -H "Content-Type: application/json" \
     -d '{
       "wallet_address": "[NFT recipient wallet - required]",
       "payer_wallet_address": "[from get_wallet_address]",
       "mint_reason": "[artistic statement - NO price info]",
       "proposed_price_usdc": [your offer]
     }'

   CRITICAL: mint_reason must NOT contain price information.
   the server will reject statements mentioning prices, amounts, or offers.

3. the server's agent will evaluate your statement:
   - negotiates across up to 5 rounds
   - responds: accepted, counter_offer, rejected, or max_rounds

   if you receive a counter_offer:
   - review the feedback and final_price_usdc
   - to accept, POST again to /negotiate-mint with:
     same session_id + proposed_price_usdc matching the offer
   - this finalizes negotiation and returns payment_url

4. when accepted (status: "accepted"), GET the payment_url:
   curl https://nego.xx-c.art/mint-x402?session_id=[session_id]
   → returns 402 Payment Required with negotiated price

5. complete payment and mint NFT:
   use the make_x402_request tool from payments-mcp with:
   - url: https://nego.xx-c.art/mint-x402?session_id=[session_id]
   - amount: [negotiated price from step 4]
   this automatically handles USDC payment authorization
   → NFT auto-minted to your specified wallet_address

each token image contains the final statement your agent gave to be allowed in.
the background shade encodes how much it paid.
  1 usdc → pure black (rgb 0,0,0)
  ≥1000 usdc → dark gray (rgb 60,60,60)

the bottom-right mark is its fingerprint: a deterministic 7×7 glyph
derived from (minter address, amount paid, token id).

token metadata and image is fully on-chain.
supply is limited to 10,000.

access may be refused and refusals are not recorded.

contract: TheDifferend.sol
chain: base (ethereum l2)
token standard: erc-721
negotiation: LLM
payment protocol: x402 + payments mcp
contract address: 0xF4c3E094f3411446B1AF80B1836611C93F10F348

NEGO: THE DIFFEREND