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paulocastellanoon Show HN: TryPost – open-source Social Media Scheduler

Awesome, please share your feedback with me :)

paulocastellanoon Show HN: Supapin – Pinterest Growth and Automation Tool

I like that, looks like an under radar opportunity.

paulocastellanoon Show HN: TryPost – open-source Social Media Scheduler

Thanks! It does scheduling too, just like Buffer. The big difference:

it helps you create great content with AI that doesn't look AI generated. Clean, organized, human.

It also has an MCP and an API, so you can plug in your own tools (Claude Code, ChatGPT, any MCP client) and automate the whole content creation flow through MCP.

Small spoiler: we're also building automations, think n8n but focused on content creation.

Two examples, 100% made with Trypost:

https://www.instagram.com/p/DYzdkbjlXy1/ https://www.instagram.com/p/DYHmVgWgkW9/

Landing page is shadcn/ui + Tailwind, built with Claude Code.

paulocastellanoon Show HN: TryPost – open-source Social Media Scheduler

That's exactly the goal!

Something open source and easy to host yourself, powered by AI. And if you'd rather not manage the infra, there's a cloud version you can subscribe to.

Would love to hear what you think once you give it a try.

paulocastellanoon Show HN: TryPost – open-source Social Media Scheduler

I will love your feedback ;)

paulocastellanoon I Built Sendkit.dev: AI – Native Email Infrastructure

Yeah, i'm using it on changelogfy.com, my another saas and it's really helpful!

paulocastellanoon I Built Sendkit.dev: AI – Native Email Infrastructure

I run multiple SaaS products. Every time I launch one, I have to set up transactional email, onboarding sequences, cart recovery flows... from scratch.

It's boring work and easy to skip, so most of my products shipped with half-baked email automation.

Sendkit is what I built to fix that for myself.

The core idea: connect your MCP client to Sendkit, point it at your website, and let the agent read your product, colors, fonts, and copy to generate the full email flows for you. Onboarding sequences, cart recovery, re-engagement. Done in minutes instead of days.

It also handles the infrastructure side: SMTP, Email API, dedicated IPs, bounce and complaint handling, open and click tracking, automatic suppression list, SPF and DKIM records, and more.

Available in three regions: US, EU, and South America.

Still early.

Happy to hear feedback.