REST

ManyChat integration

In brief

ManyChat does not support MCP — External Request HTTP only. Map the JSON response to display steps to the technician.

Prerequisites

ManyChat Pro or higher (External Request)
AskMarcel API key (ak_live_)
ManyChat flow collecting brand/model/error code

Configure External Request

1
Add External Request action
In your flow → Actions → External Request.
2
Method and URL
POST https://api.askmarcel.app/v1/diagnostic
3
Headers
Authorization: Bearer {{your_key}} and Content-Type: application/json.

Body

Use ManyChat variables collected in the flow.

JSON body

{
  "brand": "{{brand}}",
  "model": "{{model}}",
  "error_code": "{{error_code}}"
}

Map the response

ManyChat handles nested arrays (steps[]) poorly. Two strategies:

Simple: display diagnostic field (string) + source.manual + source.page
Advanced: use Make/n8n as intermediary to format steps[] as text

Mapping limitation

If steps[] does not display correctly, use the diagnostic field alone or a Make/n8n intermediary.

Display to technician

Use a Message block with mapped custom fields: {{diagnostic}}, Page {{source.page}} — {{source.manual}}.

Verify it works

Trigger the flow with a test error code. ManyChat message should show diagnostic and source.

curl test

curl -s https://api.askmarcel.app/v1/diagnostic \
  -H "Authorization: Bearer ak_live_..." \
  -H "Content-Type: application/json" \
  -d '{"brand":"Mitsubishi","model":"Ecodan PUHZ-W85","error_code":"E7"}'

Known limitations

No MCP — REST only
External Request requires a paid ManyChat plan
Nested arrays (steps[]): limited mapping — prefer Make/n8n if formatted list needed

Video coming soon

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