WhatsApp for agents: API key → isolated session → confirm before send. Billing off until you enable.
POST /v1/tenants → save api_key onceGET /v1/tenants/{id}/session/qr → fresh Linked Devices QRGET /v1/tenants/{id}/status until status: connectedGET /v1/tenants/{id}/chats?q= → chat_id + exact recipient_labelPOST /v1/test-send with those fields + confirm:truehttps://api.spansend.com/mcp/ with X-API-Key — see ActivationActivation quickstart · GET /health · /docs OpenAPI
Product story / waitlist: soak.spansend.com