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Superstables
Find APIs your AI agent can pay for in stablecoins
Superstables indexes APIs, data feeds and compute that accept stablecoin payments over x402 and MPP, and probes each endpoint for payment challenges. Free with no key: browse the directory or query it from your agent via JSON API, MCP or plain English.
Hey Product Hunt 👋
Agents are starting to pay for things themselves, through HTTP 402 payment challenges over protocols like x402 and MPP. But finding which services actually accept those payments is still guesswork. Superstables is an index of them: APIs, data feeds, GPU and compute providers, tools, and other agents.
• We probe endpoints on a rolling schedule and show whether each one returned a payment challenge at its last check.
• You can filter by rail, chain, asset and price.
• It’s free with no account. Use the web directory, the JSON API, the MCP server (find_services, get_service, get_stats), or ask in plain English.
• There’s also an early preview where an agent buys a test service and the owner approves the payment from their own wallet. It’s testnet only for now.
If you run a paid API, you can submit it for listing. I’d love to hear which services you’d want your agent to find.
About Superstables on Product Hunt
“Find APIs your AI agent can pay for in stablecoins”
Superstables was submitted on Product Hunt and earned 3 upvotes and 1 comments, placing #147 on the daily leaderboard. Superstables indexes APIs, data feeds and compute that accept stablecoin payments over x402 and MPP, and probes each endpoint for payment challenges. Free with no key: browse the directory or query it from your agent via JSON API, MCP or plain English.
On the analytics side, Superstables competes within API, Fintech, Artificial Intelligence and GitHub — topics that collectively have 669.5k followers on Product Hunt. The dashboard above tracks how Superstables performed against the three products that launched closest to it on the same day.
Who hunted Superstables?
Superstables was hunted by Rittwika Roy Choudhury. 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 Superstables including community comment highlights and product details, visit the product overview.
Rittwika Roy Choudhury