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Require unknown senders to solve a CAPTCHA or pay to reach your email and calendar.
felixdoerp · HN
Hi HN, The one thing AI reliably does is generate noise. Half the tools I see launch are just machines for producing more noise across more channels. And people are starting to see this in the form of emails in their inboxes as spam filters are struggling. There used to be a useful signal in email: the effort a sender put into customizing a message was a rough proxy for how relevant it actually was. AI killed that. Now it's customized slop with the appearance of effort with none of the cost. It is painful that the open internet / open channels have been abused like this. Captchainbox applies the idea of proof-of-work to email. If a sender is willing to do a bit of work to reach you, the message is more likely to be worth your time and the sender more likely to be real. The work is a traditional captcha. You can also set a pay-to-deliver amount if you want more friction. The proceeds of the delivery payment after transaction costs go to the Internet Archive and the EFF. The tool curr

On-chain intelligence platform providing market signals and data for AI agents.
@BlockBeatsAsia · X
🚀BlockBeats Pro 正式上线,一次订阅解锁律动全站服务🎉🎉 过去几周,不少用户发现律动陆续上线了新板块——链上数据、预测市场解读、TradFi情报、AI 信息流……也一直有人在问我们:这些内容能不能打包看,如何自主筛选想看的内容? 现在它来了,BlockBeats Pro➡️ 1⃣链上溯源 + 内幕地址捕捉 2⃣PolyBeats预测市场全量分析 3⃣TradFi 跨市场情报,休息日也不断更 4⃣AI行业信息流 + 深度研报 5⃣TradingBeats即将解锁,最棒的链上Perp与地址分析工具 一个账号,覆盖链上到传统市场、从数据到解读的完整闭环。性价比拉满🔥🔥

Manage your creator audience on Telegram and OnlyFans with AI-powered CRM and marketplace tools.
@KMA_KVIQA · X

Fetch X post replies and publish them as embeddable social proof carousels.
@tamimbuilds · X
x replies into embedded carousel

Bulk leave Telegram groups and delete chat history from your browser.
@rolex_devv · X
Fast and secure way of leaving multiple groups and channels on Telegram.

Touch Grass is a Chrome extension: pick sites to block, hit your daily scroll limit, get locked out, then upload outdoor proof to unlock. AI says yes or no. Free tier + Pro from $8
@ch1lldev · X

Automate Telegram community paywalls with Stripe integration to accept recurring payments.
@Unloqqq · X
I still hope that helps

Receive and manage form submissions via email with spam protection and webhooks.
danilovilhena · HN
AI-ready free form backend

Anonymous LLM proxy accepting Bitcoin and Monero for API access to Anthropic and OpenAI without an account.
not_wowinter13 · HN
Anonymous LLM proxy. Pay in crypto, no account needed

Make group polls in under a minute with swiping votes, no login required.
@DrockStowe · X
For anyone who has a hard time with group decision making.

Automatically configure email authentication to prevent spoofing and improve inbox delivery.
@okamigenshin · X
Try Authex, for securing your domain and email autonomously.