This product was not featured by Product Hunt yet. It will not be visible on their landing page and won't be ranked (cannot win product of the day regardless of upvotes).
ContactAPI is an open source API for saving contacts. You send a POST with an email and any JSON fields you want, and they get saved as is. The rest is plain CRUD to list, get, update, and delete. Use a secret key on your backend, or a publishable key in the browser that can only create contacts and is locked to your domains. It also runs an MCP server, so AI clients like Claude can manage your contacts directly.
Hi everyone. I kept building the same save an email endpoint for every side project, so I turned it into a small open source service.
You POST an email plus any JSON you want and it gets saved. Same email updates in place instead of duplicating. There are publishable keys for the browser and secret keys for your backend.
It also has an MCP server, so Claude and Cursor can manage your contacts for you.
Built with Hono, deployed on Vercel, MIT licensed. Would love your feedback on the API and the MCP part.
Finally a contact API that does not try to be a full CRM. Hooked it up in like ten minutes and the publishable key being domain locked is genuinely thoughtful for browser use.
About ContactAPI on Product Hunt
“A simple API to save contacts, with an MCP server”
ContactAPI was submitted on Product Hunt and earned 4 upvotes and 2 comments, placing #118 on the daily leaderboard. ContactAPI is an open source API for saving contacts. You send a POST with an email and any JSON fields you want, and they get saved as is. The rest is plain CRUD to list, get, update, and delete. Use a secret key on your backend, or a publishable key in the browser that can only create contacts and is locked to your domains. It also runs an MCP server, so AI clients like Claude can manage your contacts directly.
ContactAPI was featured in API (98.4k followers), Developer Tools (515.4k followers) and Artificial Intelligence (473.1k followers) on Product Hunt. Together, these topics include over 191.2k products, making this a competitive space to launch in.
Who hunted ContactAPI?
ContactAPI was hunted by MeduardKrasniqi. 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.
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