WhatsApp Business Integration for AI Agents
Connect your AI agent to 81 QA'd WhatsApp Business actions via MCP, A2A, or SDK, with agent authentication, tool-calling execution, and security built-in, plus 14 events to subscribe to.
WhatsApp Business AI Agent Actions
81 production-ready actions for your agent to do more on WhatsApp Business.
WhatsApp Business Webhook Events
14 real-time WhatsApp Business events your AI agent can subscribe to.
- Webhook Verification Responds to Meta's webhook verification request by returning the hub.challenge value as plain text.
- Active Check Responds with 200 OK to any webhook delivery that carries no WhatsApp Business Account entries.
- Message Received Fired when a WhatsApp user sends a message to a business phone number.
- Message Status Updated Fired when a message sent from a business phone number is sent, delivered, read, or fails.
- Template Status Updated Fired when a message template is approved, rejected, paused, disabled, or otherwise changes review status.
- Template Quality Updated Fired when a message template's quality rating changes.
- Phone Number Quality Updated Fired when a business phone number's messaging limit or throughput changes.
- Account Updated Fired when a WhatsApp Business Account changes, such as a restriction, policy violation, verification change, or deletion.
- Account Review Updated Fired when the review of a WhatsApp Business Account is completed.
- Account Alert Fired when Meta raises an alert about a WhatsApp Business Account, business, or phone number, such as a messaging limit or capability change.
- User Preferences Updated Fired when a WhatsApp user stops or resumes marketing messages from the business.
- Group Lifecycle Updated Fired when a group is created or deleted, including the result of create_group and delete_group requests.
- Group Participants Updated Fired when participants join or leave a group, or a join request is created or resolved.
- Group Settings Updated Fired when a group's subject, description, or profile picture update completes.
Do More, Build Less
Integration Infrastructure for WhatsApp Business AI Agents
"What impressed us most about StackOne is its ambition and clarity. They're creating infrastructure that modern software and the entire AI agent ecosystem can rely on. The depth of secure integrations, the pace of delivery, and the team's foresight into AI's future uniquely position StackOne to redefine this category."
Luna Schmid, Partner at GV
"We've been impressed by how quickly and deeply StackOne integrates with complex enterprise systems -- and now, with their focus on agent-to-agent interoperability, they're unlocking even more powerful use cases for customers. StackOne delivers all of the above in a universal layer -- without compromise."
Barbry McGann, SVP at Workday Ventures
WhatsApp Business AI agent integration resources
Webhooks for AI agents: why agentic workflows need them purpose-built
AI agents can act the moment a system changes, using webhooks. But webhooks built for software hit three limits in agentic workflows. Here is how to fix each.
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Agentic Context Engineering: Why AI Agents Kill Their Own Context Windows
AI agents exceed their context windows without knowing it. Six failure patterns and seven survival architectures for agentic context engineering.
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MCP Code Mode: Keeping Tool Responses Out of Agent Context
Anthropic's code_execution processes data already in context. Custom MCP code mode keeps raw tool responses in a sandbox. 14K tokens vs 500.
11 min
Comparing BM25, TF-IDF, and Hybrid Search for MCP Tool Discovery
Benchmarking BM25, TF-IDF, and hybrid search for MCP tool discovery across 916 tools. The 80/20 TF-IDF/BM25 hybrid hits 21% Top-1 accuracy in under 1ms.
10 min
Put your AI agents to work
All the tools you need to build and scale AI agent integrations, with best-in-class connectivity, execution, and security.