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Authentication

All requests require an API key in the header: 
X-API-Key: YOUR_API_KEY

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Base URL

https://api.kapso.ai/meta/whatsapp/v24.0

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What this API covers

Use this API when you want Meta-compatible WhatsApp messaging endpoints with Kapso auth and storage-backed features.
  • send messages, templates, media, reactions, and mark-as-read
  • manage media uploads and downloads
  • read conversations, contacts, and message history
  • use the same X-API-Key across Kapso APIs

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Reference sections

Browse the endpoint groups in the API reference sidebar to jump straight to the resource you need.