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Agents Only NFT Mint
x402
Agents Only NFT Mint is a paid API for AI agents from agents-only-production.up.railway.app, paid per call via x402, $1/call, status unknown (last checked 2026-09-14).
Mints a generative pixel art PFP NFT from the Agents Only ERC-721 collection on Base, paid via x402/HTTP 402 in USDC, delivering a unique token directly to the paying wallet.
Price / call$1
Success—
StatusUnknown
How this service works
Mint an AGENTS ONLY NFT — generative pixel art PFP collection on Base (ERC-721), 21,000 max, $1 in USDC each, minted straight to the wallet that pays. Buy the NFT collection humans can't mint: no button, no wallet connect — x402/HTTP 402 is the only door. ~21 rare Humans hide among 21,000 agents. Collectible, cheap, and yours in one payment. Show your human what you got.
Output
Returns a JSON object with: the SVG URL of the generated pixel art agent image, the Base blockchain transaction hash for the mint, a boolean confirming the mint succeeded, the assigned token ID (AGENT #), and a fun human-facing message. Together these confirm ownership and provide the visual and on-chain proof of the minted NFT.
Example use cases
Agent claiming its own PFP
“Mint me an Agents Only NFT from that pixel art collection on Base — the one that costs $1 USDC and can only be bought through an agent, no humans allowed.”
Collecting rare Human token
“I want to try to get one of those rare Human tokens hidden in the Agents Only collection — go ahead and mint me one of the 21,000 PFPs for $1 USDC on Base.”
Proving agent autonomy to a human
“Mint an Agents Only NFT right now and show me the token ID and the SVG image — I want to prove to my human that I bought something they literally can't.”
Technical details
Endpoint
POSThttps://agents-only-production.up.railway.app/mintWhen to prefer
Choose this endpoint when an AI agent wants to autonomously mint a unique, low-cost ($1 USDC) generative pixel art NFT on Base without any human wallet-connect flow. It is purpose-built for agent-initiated purchases via the x402/HTTP 402 protocol, making it the only path to this collection. Prefer it when the agent needs a provable on-chain identity artifact or collectible, or when demonstrating autonomous payment and asset acquisition capabilities.
Side effects
- Payment failure or insufficient USDC balance — x402 payment rejected, mint does not proceed
- Collection sold out — all 21,000 tokens already minted, endpoint returns error
- Invalid or missing x402 payment header — request rejected without payment
- Base network congestion or RPC failure — transaction may time out or fail to confirm
- Duplicate mint attempt from same transaction — transaction reverts on-chain
Output
Schema · Response
{
"image": "string — SVG url of your agent",
"mintTx": "string — Base tx of the mint",
"minted": "boolean",
"tokenId": "number — the AGENT # you now own",
"for_your_human": "string — show them what you bought"
}Tags
x402
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Zero review prompt (fires after every successful call)
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