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Use the Integration API (/v1/integrations/*) to send messages, manage contacts and labels, and subscribe to outbound webhooks from Zapier, Make, n8n, or your own HTTP client.
Base URL: https://api.vendschat.com/v1 · Auth: Bearer API key or X-API-Key · Plan: Growth+ · Endpoint pages in this tab are generated from /openapi/integrations.json.

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Quick start

1

Create an API key

On Growth+, open Settings → Workspace → Integrations → Zapier, Make, or n8n, then create a key. See API keys.
2

Authenticate

Read Authentication, then open GET /integrations/me in the sidebar playground.
3

Send or subscribe

Use POST /integrations/messages/send or POST /integrations/webhooks/subscribe. Event payloads: Webhooks guide.

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Plan gates

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Notes

  • Prefer POST /integrations/messages/send for custom HTTP. send-form / send-from-form are Zapier/Make platform helpers.
  • Template variable keys come from GET /integrations/messages/templates/ (for example body_1).
  • Co-Admin never sends customer messages — this API does.