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aamatte

Re:Kapso CLI: WhatsApp numbers for agents on Monday March 23, 2026 @10:06AM (#47489741)
Today we are launching the Kapso CLI:

WhatsApp numbers for agents.

```

npm install -g @kapso/cli

kapso setup

```

Kapso provides a pre-verified number for free. Just connect your Meta account and you're live.

Your agent can then send and receive messages, read conversations, and respond, all from the CLI.

Kapso is a Meta Business Partner using official Meta APIs.

Free to start: kapso[dot]ai

Re:Show HN: Kapso – WhatsApp for developers on Friday December 26, 2025 @06:22AM (#46391124)
at the beginning Kapso was more focused on ai agents :)
Re:Show HN: Kapso – WhatsApp for developers on Friday December 26, 2025 @04:37AM (#46390633)
yeah unfortunately you need a Facebook account
Re:Show HN: Kapso – WhatsApp for developers on Thursday December 25, 2025 @10:09AM (#46384829)
soon!
Re:Show HN: Kapso – WhatsApp for developers on Wednesday December 24, 2025 @09:42AM (#46375972)
thanks! yes, we use the official Meta API
Re:Show HN: Kapso – WhatsApp for developers on Wednesday December 24, 2025 @06:07AM (#46374511)
thanks! and yeah, the integration pain is exactly why I built this.

let me know what you think once you try it!

Re:Show HN: Kapso – WhatsApp for developers on Tuesday December 23, 2025 @04:33PM (#46369728)
Thanks! For now we're focused on going deeper on WhatsApp. There's still a lot to build. But other channels aren't off the table eventually.
Re:Show HN: Kapso – WhatsApp for developers on Tuesday December 23, 2025 @03:14PM (#46368985)
Twilio priced WhatsApp messages like SMS: $0.005 per message.

That made sense for SMS where you send one message and you're done.

But WhatsApp conversations don't work that way. People send bursts of short messages instead of one long one.

A typical conversation can easily hit 30-50 messages. Building AI agents with that pricing gets expensive fast.

At Twilio's rates, 100k messages would cost you $500.

Our Pro plan is $25/month and includes 100k messages.

Re:Show HN: Kapso – WhatsApp for developers on Tuesday December 23, 2025 @02:56PM (#46368790)
Thanks!!
Re:Show HN: Kapso – WhatsApp for developers on Tuesday December 23, 2025 @02:55PM (#46368786)
Thanks! Agreed on the composability pain. That's part of why we bundle inbox, observability, workflows, etc, together.

Show HN: Kapso – WhatsApp for developers

https://kapso.ai/

Hey HN, I'm Andres. I've been building Kapso as a solo founder, and just crossed 4,000 developers, all organic.WhatsApp has 3B+ users and 98% open rates. You'd expect developers to be building tons of stuff on it, especially when the US is the fastest-growing market in WhatsApp usage.But it’s not happening… And I'd bet it's because the DX is painful.Every team needs to build the same features...

( Read More... | 26 comments | 17 points | on HN )
Re:Show HN: SignatureAPI – Electronic Signature API on Thursday October 03, 2024 @10:59AM (#41731414)
What's the green checkmark?
Re:Show HN: Pullpo – Code review conversations on Slack on Friday March 31, 2023 @08:41AM (#35386214)
Very useful. We are using it on a daily basis and it has definitely increased our shipping cadence. PRs are merged faster.