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Featured in Domain Arrivals · 2026-08-15

CatchMySignal Gives AI Agents an Inbox

catchmysignal.com ↗ · Developer Corner · score 79.0
○Open: public page gives enough substance to understand the site $Paid: pricing, booking, ecommerce, subscription, or paid access is visible ADAds: visible ad load or ad-supported content ✦Pretty: notable design, copy, craft, or presentation ◆Pro: polished, finished-feeling, serious, or operationally mature ◇Niche: specific audience, workflow, or unusually focused use case ◉Human: personal, local, community, civic, handmade, or real-person signal !Suspicious: scammy, spammy, trust theater, finance fog, or credibility concern

A temporary webhook service lets an AI agent receive outside events while it is offline, then retrieve them later through REST or MCP.

Why it surfaced

CatchMySignal turns asynchronous waiting into a small, concrete piece of agent infrastructure: create an inbox, hand its secret URL to Stripe, GitHub, or a form, and collect the event when the agent resumes. Its MVP spells out unusually specific limits—24-hour default lifetimes, up to 100 events, 64 KB bodies—and includes both REST endpoints and MCP tools.

The Two-Tonne Temperature Problem

August 15’s newborn domains include a live-aboard hydrogen airship with a two-tonne lift problem, a Japanese toolbox that explains its assumptions, an advisory-by-advisory Hawaiʻi hurricane archive, and a wedding-gift game about ungrateful poultry.

This is one of 1,000 discoveries in the 2026-08-15 Domain Arrivals issue.