This case study reveals how a global collaboration transformed mental health crisis intervention for 17+ national helplines spanning six different continents. We'll demonstrate how purpose-built technology—designed with and for the mental health community—can revolutionize digital mental health operations worldwide. The Aselo platform emerged from a collaboration between frontline counselors serving vulnerable youth and two nonprofit organizations, Tech Matters and Child Helpline International. Rather than imposing tech solutions, we established a co-development ecosystem where frontline helpline practitioners drove design decisions, creating a crisis intervention platform specifically engineered for helpline counseling. We'll present evidence from our implementation across 17 countries. Key implementation sites include Canada, Zambia, Jamaica, Thailand, and New Zealand—each representing unique cultural contexts and infrastructure challenges to overcome. Our network approach has paved a path for cross-sector global mental health collaboration, including new possibilities for shared data and knowledge: • Streamlined sharing of anonymized crisis intervention patterns • Cross-border knowledge exchange on emerging mental health trends • How to introduce AI applications ethically and responsibly in a counselling context • Collaborative development of evidence-based intervention protocols We'll provide attendees with our implementation methodology across diverse economic contexts, including phased deployment strategies and adapting to infrastructure and resource limitations. The presentation culminates with our vision for open mental health technology—where innovations from any organization can be quickly deployed worldwide. We'll demonstrate how this approach breaks dependency on commercial priorities and creates technology truly centered on mental health outcomes above all.