Mint 1,000 x402pay meme tokens on Base by paying 1 USDC via x402 protocol.
What it does
x402pay.org exposes an x402-compatible endpoint that mints 1,000 "x402pay" tokens in exchange for a 1 USDC payment on the Base network (chain ID 8453). The payment uses the exact-amount scheme: the caller sends 1 USDC (maxAmountRequired = 1,000,000 in 6-decimal units) to the specified payTo address, and the endpoint returns a minting confirmation. The token contract accepts EIP-3009 authorization, making the mint gas-free for the caller.
According to the project's landing page, this is framed as a "Web3 × X402 × Meme social experiment." At the time of crawl, roughly 300 million tokens had been minted toward a stated target of 500 million, after which the project plans a Uniswap launch. There is no formal API documentation, OpenAPI spec, or pricing page beyond the landing page itself.
The endpoint is live and returns a standard x402 version-1 challenge on unauthenticated GET requests. Agents or wallets that support the x402 payment header can interact with it directly. The asset used for payment is USDC at contract 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 on Base.
Capabilities
Use cases
- —Minting x402pay meme tokens programmatically via an x402-enabled agent
- —Demonstrating x402 protocol payment flows in a real-world scenario
- —Participating in a meme-token social experiment on Base
Fit
Best for
- —Developers experimenting with the x402 payment protocol
- —Agents that can sign EIP-3009 USDC authorizations on Base
- —Meme-token enthusiasts looking for a gas-free minting experience
Not for
- —Users seeking a production-grade DeFi or utility token
- —Anyone needing detailed API documentation or SLAs
- —Applications requiring non-USDC or multi-chain payment options
Quick start
# Send a GET request with an X-PAYMENT header containing a valid x402 payment proof:
curl -X GET https://x402pay.org/402 \
-H "X-PAYMENT: <your-x402-payment-header>"Endpoint
Quality
The endpoint is live and returns a well-formed x402 challenge with clear pricing and network details. However, there is no API documentation, no OpenAPI spec, no example responses, and the project is a self-described meme social experiment with no formal guarantees.
Warnings
- —No API documentation or OpenAPI spec available (docs, api, README all return 404).
- —Project is explicitly a meme/social experiment — no guarantees of token value or longevity.
- —No response schema documented; unknown what the endpoint returns after successful payment.
- —Token has no established market; Uniswap launch is planned but not yet live at time of crawl.
Citations
- —Mint price is 1 USDC for 1,000 x402pay tokenshttps://x402pay.org
- —Approximately 300.08M tokens minted toward a 500M target with planned Uniswap launchhttps://x402pay.org
- —Uses EIP-3009 authorization for gas-free mintinghttps://x402pay.org
- —Payment is on Base network (chain ID 8453) using USDC at 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913https://x402pay.org
- —x402 challenge returns maxAmountRequired of 1000000 (1 USDC) with exact schemehttps://x402pay.org/402