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CallNode
Phone numbers as infrastructure for your AI agent
CallNode gives your AI agent a phone number. Point it at any webhook or WebSocket — it handles voice, SMS, and MMS. Reply with text, CallNode speaks it. No SDKs, no telephony stack, no carrier contracts. Built for developers shipping voice AI: HMAC signing, test mode, OpenAPI spec, and pay-as-you-go from $0.02/min.
Hey PH! We're CallNode — if your stack can accept an HTTP POST, it can now answer a phone call. Happy to answer technical questions all day.
About CallNode on Product Hunt
“Phone numbers as infrastructure for your AI agent”
CallNode was submitted on Product Hunt and earned 2 upvotes and 1 comments, placing #148 on the daily leaderboard. CallNode gives your AI agent a phone number. Point it at any webhook or WebSocket — it handles voice, SMS, and MMS. Reply with text, CallNode speaks it. No SDKs, no telephony stack, no carrier contracts. Built for developers shipping voice AI: HMAC signing, test mode, OpenAPI spec, and pay-as-you-go from $0.02/min.
On the analytics side, CallNode competes within Messaging, API and Artificial Intelligence — topics that collectively have 632.4k followers on Product Hunt. The dashboard above tracks how CallNode performed against the three products that launched closest to it on the same day.
Who hunted CallNode?
CallNode was hunted by Chandler Etienne. 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 CallNode including community comment highlights and product details, visit the product overview.
Chandler Etienne