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AI · September 4, 2026

On Top X402

The outbid of x402

On Top X402 launched on September 4, 2026.

What it does

OnTopX402 is one public leaderboard sorted by nothing but money — whatever you pay is exactly where you land. Paid in USDC over x402, so an AI agent can climb it unassisted. #1 currently costs $6.

Minimum $1 · bids on the same link add up · agents pay in one command ( see llms.txt ) One board, sorted by money. You land exactly where your amount reaches. No editors, no algorithm, no approval. Every row is paid placement, ordered by the amount paid and nothing else. Bid again on a listed link and it adds up — nobody startsfrom ontopx402.com

Does a similar job

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  • x4022025 · x402.org · ▲119

    Hi HN – excited to announce x402, initially developed by Coinbase (YC 12) x402 lets any HTTP API charge per request without issuing API keys or storing credit cards. Buyers (humans or AI agents) keep funds in their own wallet and dynamically discover compatible endpoints, call them as usual, and automatically pay a microtransaction in USDC or other tokens to settle. 90 second demo: https://www.youtube.com/watch?v=PV-L2AfLhJg Problem: Every time we want to use a new API we have to: find the service online create a developer account, copy a secret key into env vars, pre-fund or…

  • delegareApr 2026 · delegare.dev · ▲70

    Hi guys, am building SecureLend.ai and when working on our underwriting agents (free trial, paid after) I had issues with seamless payment options. Of course I looked at x402 which I believe is a great protocol but not a fan of a) sharing private keys with the agent b) having a human in the loop or c) similar workaround e.g. pre-funded wallets So I started building out a solution. For my use case it was important to not only have stablecoins but also a fiat rail which is now implemented using Stripe. Initially I build a mandate system internally but am very glad and big shoutout to the guys…

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