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PayAPI Market
The API marketplace where the badge means I paid for it
44 APIs and 394 endpoints your AI agent can pay for per request in USDC on Base. No signups, no API keys, no subscriptions. 23 listings carry a verified badge, meaning I paid the endpoint from my own wallet and it returned real data, with the on-chain transaction hash to prove it. Most x402 directories list endpoints nobody has ever paid. Free to list, providers keep 100%.
The problem: AI agents hit paywalls constantly. Sign up, get a key, enter a card, wait for approval. An agent can't do any of that. It stops and waits for a human.
The x402 protocol fixes this. An endpoint returns HTTP 402 with a price, the agent signs a USDC payment, and the data comes back. No account, no key, sub-cent amounts, settled on Base in about a second.
The problem with x402 marketplaces is that most of them are directories. Anyone can list an endpoint and claim it takes payment. Nobody checks.
So I check. Every verified listing on PayAPI Market has been paid for from my own wallet, on-chain, and returned real product. If it didn't return real data, it doesn't get the badge. The transaction hash is on Base and anyone can look it up.
Today that's 56 verified listings. It’s not the biggest catalogue in this space. It’s the one where the badge is backed by a receipt.
Listing is free and providers keep 100% of what they earn.
Happy to answer anything about x402, the verification process, or what breaks when agents start paying for things.
About PayAPI Market on Product Hunt
“The API marketplace where the badge means I paid for it”
PayAPI Market was submitted on Product Hunt and earned 0 upvotes and 1 comments, placing #66 on the daily leaderboard. 44 APIs and 394 endpoints your AI agent can pay for per request in USDC on Base. No signups, no API keys, no subscriptions. 23 listings carry a verified badge, meaning I paid the endpoint from my own wallet and it returned real data, with the on-chain transaction hash to prove it. Most x402 directories list endpoints nobody has ever paid. Free to list, providers keep 100%.
On the analytics side, PayAPI Market competes within API, Developer Tools and Artificial Intelligence — topics that collectively have 1.1M followers on Product Hunt. The dashboard above tracks how PayAPI Market performed against the three products that launched closest to it on the same day.
Who hunted PayAPI Market?
PayAPI Market was hunted by Chet Parker. A “hunter” on Product Hunt is the community member who submits a product to the platform — uploading the images, the link, and tagging the makers behind it. Hunters typically write the first comment explaining why a product is worth attention, and their followers are notified the moment they post. Around 79% of featured launches on Product Hunt are self-hunted by their makers, but a well-known hunter still acts as a signal of quality to the rest of the community. See the full all-time top hunters leaderboard to discover who is shaping the Product Hunt ecosystem.
For a complete overview of PayAPI Market including community comment highlights and product details, visit the product overview.
Chet Parker
Hi Product Hunt,
I'm Chet, and I built PayAPI Market solo.
The problem: AI agents hit paywalls constantly. Sign up, get a key, enter a card, wait for approval. An agent can't do any of that. It stops and waits for a human.
The x402 protocol fixes this. An endpoint returns HTTP 402 with a price, the agent signs a USDC payment, and the data comes back. No account, no key, sub-cent amounts, settled on Base in about a second.
The problem with x402 marketplaces is that most of them are directories. Anyone can list an endpoint and claim it takes payment. Nobody checks.
So I check. Every verified listing on PayAPI Market has been paid for from my own wallet, on-chain, and returned real product. If it didn't return real data, it doesn't get the badge. The transaction hash is on Base and anyone can look it up.
Today that's 56 verified listings. It’s not the biggest catalogue in this space. It’s the one where the badge is backed by a receipt.
Listing is free and providers keep 100% of what they earn.
Happy to answer anything about x402, the verification process, or what breaks when agents start paying for things.