Guides

Zapier

Webhooks by Zapier recipes for posting, Catch Hook for events, and the MCP server for Zapier Agents.

There is no overads app in the Zapier directory yet. Webhooks by Zapier covers every call, and Zapier Agents can use the MCP server directly.

Create a scheduled post#

{
  "content": "{{copy}}",
  "connectionIds": ["3f1c1a2e-6b2a-4a0e-9a5f-0d5a7d0f2b11"],
  "scheduledAt": "{{publish_at}}"
}

Zapier flattens the response, so the post id is data__id and the first warning code is warnings__0__code. Add a Filter step on warnings__0__code exactly matches APPROVAL_REQUIRED to branch.

List scheduled posts#

Receive events#

• Add Webhooks by Zapier > Catch Raw Hook as the trigger and copy the URL. Catch Raw Hook keeps the body as a string, which is what the signature is computed over.
• Register it with POST https://api.overads.io/public/v1/webhooks; store the returned secret in Zapier's storage or as a Code step secret.
• Add a Code by Zapier (JavaScript) step that computes crypto.createHmac('sha256', secret).update(rawBody).digest('hex') and compares it to the X-Overads-Signature header with crypto.timingSafeEqual, then parses the JSON.

Zapier Agents#

Available on Zapier plans that allow custom MCP servers. The agent sees the same tool list as any other client.