HashProof: API for Verifiable Credentials

Hi Product Hunt 👋 I'm Camilo, founder of HashProof. I originally built this to solve a problem in my own event platform. Like many platforms, we generate certificates for attendees, but most tools in this space are SaaS products with subscriptions. I didn’t want another dashboard or subscription. I just wanted an API that could issue verifiable credentials and let me pay per use. So I built HashProof. Instead of generating PDF certificates, HashProof lets developers issue verifiable credentials whose metadata is stored on IPFS and whose hash is registered on the blockchain for public verification. Each credential costs 0.10 USDC using x402, making it simple to integrate into apps or automation workflows. While building it, I realized this could also work well for AI agents that need to issue credentials automatically. I tested it by connecting HashProof to my OpenClaw agent, and the agent was able to generate credentials on its own. The first version was built in 3 days, and HashProof already issued the first credentials. Would love feedback from developers, event platforms, or anyone working with digital credentials. You can try the quickstart and generate your first credential in seconds.🙌