PayAPI Market

What it does

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 marketplace that pays for every API it verifies. 119 live APIs for AI agents, 102 settlement-verified with real USDC on Base. Property, companies, weather, vehicles, finance, HMO licensing, waste collection, air quality, text analytics, and more. Free to list, no per-request fee, keep 100%. Alternative to RapidAPI and Coinbase Agentic Market for domain experts.

No API keys. No accounts. No monthly plans for buyers. Every verified listing was paid for from our own wallet and returned real data. On-chain, on Base. 102 settlement-verified · providers keep 100% · pay per request in USDC. Powered by the x402 payment standard: agents pay per call, providers get paid automatically. We paid for it from our own buyer wallet and received product back. The badge is enforced at database level: it cannot be set without a matching settlement record. 102 listings carry it, of which 9 are our own first-party APIs. The provider submitted it and it responds to a challenge. We have not paid for it yet. Not the biggest catalogue. The one where the badge is a receipt.…from payapi.market

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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…

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  API PickFeb 2026 · apipick.com · ▲71

  Data APIs for AI agents & developers — free to start

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  P402.ioJan 2026 · p402.io · ▲102

  Route, verify, and settle paid API calls with clear traces

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  x402 wallet API: 9 Base endpoints, USDCAug 2026 · api.kachangsia.com · ▲1

  9 Base endpoints for AI agents, paid in USDC per call

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  x402stockJun 2026 · x402stock.xyz · ▲3

  x402 API for US stock market data

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  GlianaAIJul 2026 · ai.glianalabs.com · ▲5

  Pay-per-call AI — 59 models, no signup, no API key

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  Spira Maxima▲578

  Video model that turns script into viral social media videos

  AI · 17d ago · spira.ai

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  Rill Browser▲540

  The browser where Claude Code and Codex work beside you

  AI · 17d ago · rill.love

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  Germany's new sovereign AI model Kolibri▲424

  Kolibri is Aleph Alpha

  AI · 19d ago · tej.as

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  Giving Opus 5.5 a simulated paint canvas▲392

  Paintings by AI models: programs run through a simulation of oil paint.

  AI · 20d ago · stillwet.art

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  PixVerse R2▲381

  A real-time world model you can explore and change

  AI · 29d ago · world.pixverse.video

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  Hemory▲381

  Keep listening. Searchable memory for your AI agents.

  AI · 30d ago · hemory.com

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  The load-bearing vocabulary of Claude▲710

  Life & fun · Aug 2026 · louisabraham.github.io

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  Hey Noah▲656

  A proactive AI executive assistant for founders

  AI · Aug 2026 · heynoah.io

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  Clipto MCP▲655

  Hey HN, We recently built Clipto. It’s a tool that lets you search over terabytes of video, audio, and images on your computer, without relying on the cloud. Motivation: we probably all had this similar experience, we know a moment exists in a video or audio, but finding it takes hours scrubbing the timeline. You can send all the media to process in the cloud, but it’s slow, expensive and raises privacy concerns. So we decided to build our own on-device media search engine. How it works (high level): 1. We ingest video, audio, image; normalize formats via ffmpeg; run content analysis to…

  Work · Aug 2026 · clipto.com

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  Simple algorithm and color space to generate diverse skin tones▲627

  Hello HN! I found that picking out plausible but diverse skin tones for my digital art and game development projects was kind of difficult, and I got curious about if there was a way to define a color space that made it easy. I've built a color picker and procedural generation algorithm based on the space as well as a bunch of other fun js features and demos throughout the page that use the equations. If you find it interesting, I have lots of explanations of how I built it and what properties the space has. The methodology might be a bit shaky, but hopefully the result is as helpful for…

  Life & fun · Aug 2026 · toneyalexander.github.io

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  AdAnt AI▲620

  Claude for viral, high-converting social ads

  AI · Aug 2026 · adant.ai

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  Astute▲606

  Automate your B2B brand going viral, with new media creators

  AI · Aug 2026 · company-app.joinastute.com