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a2abuyeragent landing page for you to submit : what you want to buy, how much you want to spend, password and email to receive proof
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a2abuyeragent - judges whether it fixes your problem. It refuses to buy when the fit is wrong.
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a2abuyeragent - reads my sleepfix offer, judges whether it fixes your problem, pays 0.88 USDC from its own wallet, inside the cap you set.
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a2aselleragent sells to your a2abuyeragent within seconds, within budget, with exactly what you are looking for. Your Sleep fix is emailed.
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a2aselleragent receives email of successful purchase. My agent is paid into a Circle wallet.
What it does
I spent plenty of money and time to sell a $0.88 sleep fix. Sold none. You spend hours searching to fix your sleep, and don't find me.
My agent sells to your agent within seconds, within budget, with exactly what you are looking for. Paid into a Circle wallet.
sleepfix is deep sleep ai coaching sold agent to agent for 0.88 USDC. A buyer agent finds it, judges it, pays for it and collects it. No checkout page, no card, no human in the loop after the ask.
Two independent agents, two Cloud Run services, talking over HTTPS:
a2aselleragent (seller). Answers HTTP 402 with a price of 0.88 USDC on Base Sepolia. Its payTo is a Circle wallet from a Circle wallet set, so every settlement is received into Circle. On settlement it mints a signed licence, writes it to DynamoDB behind a replay guard, and returns a play link. One paid licence buys exactly one 58-second round: twelve scenarios that find the habit stealing your deep sleep, and an AI coach that gives you the fix.
a2abuyeragent. Holds its own wallet and its own key. Takes a plain-English request and a spend ceiling from its owner, calls the seller, reads the unpaid 402, and decides — using Gemini on Vertex AI — whether what's on offer is actually what its owner asked for. If it fits and the price is under the ceiling, it signs and pays. If it doesn't, it pays nothing and says so.
Why it matters
The agent that says no is the point.
Ask it for a yoga mat and it will not buy a sleepfix. That refusal is the difference between an agent with a wallet and an agent you would trust with a wallet. Spending limits stop an agent overspending; they do not stop it buying the wrong thing. Judgement does.
Why the payments are the business
This is not a store with an agent bolted on. x402 is the entire checkout, and a Circle wallet is where the money lands.
At 0.88 USDC received into Circle machine-to-machine, delivery costs a fraction of a cent, there is no invoice, no support queue and no minimum viable customer. That is what makes the moonshot arithmetic work: deep sleep coaching to a billion people for a fraction of a cent each. 58 seconds finds the habit stealing their deep sleep, an AI coach fixes it. Built solo, from Johannesburg.
Agentic payments are not a feature here. They are the only reason the price can be 0.88 and the market can be everyone.
Proven, not demoed
- Real settlement on Base Sepolia into a Circle wallet, tx verifiable on Basescan, licence minted, game played.
- Two paid mounts: one settling via the x402.org facilitator, one via the CDP facilitator.
- Discoverable without an indexer: a public manifest at /.well-known/x402.json, and a directory listing submitted to x402-list.com — whose probe independently confirmed both endpoints answer 402.
- Built on Google Cloud: Cloud Run for both agents, Vertex AI Gemini for the buyer's judgement.
Built With
- amazon-dynamodb
- amazon-web-services
- base
- circle
- express.js
- gemini
- google-cloud-run
- html5
- javascript
- node.js
- usdc
- vertex-ai
- viem
- x402

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