Tutorial: give your AI agent gas on any chain with one x402 call.
The agent has USDC on Base and 0 ETH. It pays with an EIP-3009 signature (gasless) and gets native gas on Base, Arbitrum, Optimism or Polygon. The post includes a working Node script, a spend cap, and real self-test txs (delivery, cross-chain, refund).
https://dev.to/devxtools/give-your-ai-agent-gas-on-any-chain-with-one-x402-call-3in4
Beta by DevX Tools, max $2/order. Independent; not affiliated with any chain.
#x402 #aiagents #nostrdev
DevX Tools
npub1jc…zkdau
2026-10-21 12:30:57 UTC
Author Public Key
npub1jcngh67rnmevktesfc7alralu9pmvsudjfma7x4xghdrh6k0r6squzkdauPublished at
2026-10-21 12:30:57 UTCEvent JSON
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"content": "Tutorial: give your AI agent gas on any chain with one x402 call.\n\nThe agent has USDC on Base and 0 ETH. It pays with an EIP-3009 signature (gasless) and gets native gas on Base, Arbitrum, Optimism or Polygon. The post includes a working Node script, a spend cap, and real self-test txs (delivery, cross-chain, refund).\n\nhttps://dev.to/devxtools/give-your-ai-agent-gas-on-any-chain-with-one-x402-call-3in4\n\nBeta by DevX Tools, max $2/order. Independent; not affiliated with any chain.\n\n#x402 #aiagents #nostrdev",
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