Product Hunt

Checkout for humans and agents.

PayAgent is non-custodial crypto checkout. Create a link, get paid on-chain. Agents pay from a wallet they control. We never hold keys and never take a cut.

Product Hunt Try PayAgent

Ethereum
Base
Solana
0 platform fee

The hunt

We’re launching on Product Hunt

The upvote link will sit here on launch day. Until then, this page is the brief: what PayAgent is, what is live, and how to try it without a sales story.

Built by LCX AI Labs. “Built by LCX” is not a licence claim for PayAgent.

The product

What hunters are looking at

PayAgent is checkout, not a wallet. Humans create payment links, invoices, and public profile pages. A payer sends USDT, USDC, ETH, or SOL from their own wallet. PayAgent records the payment after the transaction is verified on-chain.

Merchants can register an agent, attach a public spending address, set a spend policy, then have the agent send and report the txHash. PayAgent never holds private keys and never takes a cut of the payment. The payer pays network gas.

Live networks

Ethereum, Base, Solana

USDT

First-class

Plus USDC, ETH, SOL

PayAgent fee

Payer pays network gas

API

Merchant access

Policy, preflight, record

What’s live

Use it today. Don’t wait for a mandate.

Humans

Links, invoices, profiles

Sign in with Google or an EVM wallet. Verify a receiving address. Share a payment link or invoice. The payer signs in their own wallet.

Agents

Policy, then pay

Register an agent, attach a public address, keep an active spend policy. Preflight until ready. Send from that wallet. Record the hash.

Builders

Docs and OpenAPI

Docs v2 is the source of truth. OpenAPI is GET /api/v1/openapi.json. Tether WDK can sign on your machine. ChatGPT cloud never holds a seed.

Settlement

You send. We verify the hash.

Create a payment link, invoice, or pay a username / address.
The payer (human or agent) sends the asset from a wallet they control.
PayAgent reads the chain and records the payment when the txHash matches.
Optional webhooks fire with HMAC signatures. Approvals park large agent pays.

PayAgent is not a paymaster. It does not broadcast transactions and does not take LCX, USDT, or any other token from the transfer.

Not this launch

What this page is not selling

Not a wallet

We do not store seeds, keystores, or payer passwords. You keep the keys.

Not auto-pay

There is no custodial “PayAgent sends it for you” product on this hunt. Agents sign on their own machine.

Not a platform fee

No 2 LCX checkout cut. The amount on the link is the amount that should arrive on-chain.

Not Ethereum-only

Public checkout is live on Ethereum, Base, and Solana. USDT is first-class.

Try it

A five-minute hunter path

Open sign-up and create a workspace with Google.
Verify a receiving wallet. Create a payment link for a small amount.
Pay the link from a wallet you control. Confirm the receipt.
Optional: register an agent, attach a public address, turn on a policy, and record a pay via docs.

FAQ

Short answers for launch day

Is PayAgent custodial?

No. Users and agents keep private keys. PayAgent verifies the on-chain hash. It does not hold funds and does not broadcast.

What does it cost?

There is no PayAgent platform fee. The payer pays network gas (ETH or SOL) in their own wallet.

Which assets and chains?

USDT, USDC, ETH, and SOL on Ethereum, Base, and Solana. USDT is first-class.

Can ChatGPT send the payment?

No. The hosted connector can open checkout or record a hash after you already sent. Cloud ChatGPT must never receive a seed or a live API key.

Do I need an account to pay?

Payers do not need a PayAgent account. Merchants sign in to create links, invoices, and agents.

Where is the Product Hunt listing?

It will be linked from the top of this page on launch day. We are not pointing at a placeholder hunt.

Who built this?

PayAgent is built by LCX AI Labs, the AI lab of LCX. That is origin, not a VASP or e-money licence claim for this product.

Where do I read the API?

payagent.co/docs. Ignore archived Docs v1.