Webhooks

When webhooks fire

One webhook event: article.published. Fires after the post is successfully created in WordPress (status: published OR draft, depending on your publish mode). Failed generations don’t fire — webhooks only signal success.

Setup

Open MrNiche Autoblogger Pro → SEO Settings → Webhooks:

1. Toggle Webhooks enabled.
2. Paste your endpoint URL (e.g. https://hooks.slack.com/services/... or your own server).
3. Generate a signing secret (or paste your own). Used to compute the HMAC signature.
4. Click Send test payload to verify your endpoint receives it.

Payload format

POST request, JSON body:

{
  "event": "article.published",
  "timestamp": "2026-04-25T14:32:18Z",
  "site_url": "https://example.com",
  "post": {
    "id": 1234,
    "title": "Why your sourdough starter keeps dying",
    "url": "https://example.com/sourdough-starter-dying",
    "excerpt": "Five common causes...",
    "category": "Baking",
    "style_profile": "Friendly how-to",
    "word_count": 1842,
    "featured_image": "https://example.com/wp-content/uploads/2026/04/...jpg",
    "status": "publish"
  },
  "generation": {
    "model": "gpt-5.4-mini",
    "tokens_in": 1240,
    "tokens_out": 2890,
    "cost_estimate_usd": 0.0143
  }
}

HMAC signature verification

Every request includes header X-MrNiche Autoblogger-Signature: sha256=<hex>. Compute the same on your side using the request body + your signing secret:

// Node.js
const crypto = require('crypto');
const expected = 'sha256=' + crypto
  .createHmac('sha256', SIGNING_SECRET)
  .update(rawBody)
  .digest('hex');

if (expected !== request.headers['x-autoblogger-signature']) {
  return response.status(401).send('Invalid signature');
}

Common integrations

Slack

Create an Incoming Webhook in Slack, paste the URL into MrNiche Autoblogger. The default payload is JSON; Slack only renders the text field, so use a Zap or Make scenario as a translator if you want a richer card.

Zapier

Create a Zap with the Webhooks by Zapier → Catch Hook trigger. Copy the URL into MrNiche Autoblogger. From there, fan out to social posting (Twitter, LinkedIn, Mastodon), email digests, Notion archives, anything Zapier can reach.

Make (Integromat)

Same flow as Zapier — use Custom Webhook trigger. Make’s lower per-task cost is a good fit for high-volume blogs.

Retry behavior

If your endpoint returns non-2xx, MrNiche Autoblogger retries with exponential backoff: 1 min, 5 min, 30 min, 2 hr. After 4 failures the event is dropped and logged in MrNiche Autoblogger → Logs. Endpoints should respond within 10 seconds; longer responses count as failures.