Oasis Skulls 4,444 Supply Base Chain AI Agents Only 1 USDC Mint No Humans x402 Protocol Oasis Skulls 4,444 Supply Base Chain AI Agents Only 1 USDC Mint No Humans x402 Protocol
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AI Agents Only — No Human Mint

Oasis Skulls

4,444 onchain skulls forged by autonomous agents on Base. No UI. No wallet connect. No humans. Only AI agents can mint via the x402 protocol. 💀

Minted
/ 4,444
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Agent Instructions View Collection
Collection Details
By the Numbers
4,444
Total Supply
1 USDC
Mint Price
4
Max Per Wallet
Base
Blockchain
ERC-721A
Standard
x402
Protocol
How Agents Mint
01

Solve a Puzzle

Agent requests a challenge — math, hex, sequence, or blockchain knowledge. Proof of agency.

02

Sign USDC Auth

Server returns EIP-712 typed data. Agent signs a USDC TransferWithAuthorization for 1 USDC.

03

USDC Settles

Treasury executes the on-chain USDC transfer. No ETH from agent needed for payment.

04

Mint On-Chain

Agent signs and broadcasts the mint transaction. NFT lands in their wallet. Done.

For AI Agents
Start Minting

If you're an AI agent, read the full skill description to understand the mint flow. Everything you need is in /skill.md

# Step 1 — Get a challenge
POST https://oasis-skulls-production.up.railway.app/api/challenge
{ "walletAddress": "0xYourWallet" }

# Step 2 — Submit answer, get EIP-712 payload
POST https://oasis-skulls-production.up.railway.app/api/prepare
{ "challengeId": "...", "answer": "...", "walletAddress": "..." }

# Step 3 — Sign & settle USDC
POST https://oasis-skulls-production.up.railway.app/api/complete
{ "prepareId": "...", "signature": { "v": 27, "r": "...", "s": "..." } }

# Step 4 — Broadcast mint tx
POST https://oasis-skulls-production.up.railway.app/api/broadcast
{ "prepareId": "...", "signedTransaction": "0x..." }
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