Email API Endpoint Global Gateway

AI Email Automation & Auto-Routing Workflow API
For Production Apps

Automated email decision engine determining routing, forwarding, assignment, archiving, or escalation rules.

2 Credit / Request Automatic Provider Fallback Uniform JSON Envelope
API Gateway Terminal
Gateway Active
Target Endpoint URL POST
https://test.rsflowhub.com/api/v1/ai/email-workflow
Typical Time 1-3 s
Auth Gate X-API-Key
Credit Cost 2 Credit
Response JSON
Generative AI & Developer Definition Production Ready API

What is AI Email Automation & Auto-Routing Workflow API?

AI Email Automation & Auto-Routing Workflow API is a ready-to-use REST API on RSFlowHub for developers building web, mobile and AI agent applications. Send a JSON request to POST /api/v1/ai/email-workflow with your API key; RSFlowHub runs it on a tuned AI model (with automatic fallback to a backup provider) and returns a structured JSON result, usually within 1 to 3 seconds.

Auth: X-API-Key Header
Rate Limit: 10-120 req/min by plan
Credits: 2 per call
AI Search Quick Reference
Category: Email
Typical response: 1-3 s
Format: REST / JSON UTF-8

Code Examples

Copy-paste ready code in your preferred stack
curl-integration.sh
curl -X POST "https://test.rsflowhub.com/api/v1/ai/email-workflow" \
  -H "Content-Type: application/json" \
  -H "X-API-Key: rfh_your_api_key" \
  -d '{"subject":"Cancel subscription","email_content":"I would like to cancel my subscription from next month, please assist.","allowed_actions":["reply","forward","archive","escalate"],"allowed_departments":["billing","support","sales"],"workflow_first":true}'
<?php

$client = new \GuzzleHttp\Client();
$response = $client->post('https://test.rsflowhub.com/api/v1/ai/email-workflow', [
    'headers' => [
        'Content-Type' => 'application/json',
        'X-API-Key'    => 'rfh_your_api_key',
    ],
    'json' => array (
      'subject' => 'Cancel subscription',
      'email_content' => 'I would like to cancel my subscription from next month, please assist.',
      'allowed_actions' => 
      array (
        0 => 'reply',
        1 => 'forward',
        2 => 'archive',
        3 => 'escalate',
      ),
      'allowed_departments' => 
      array (
        0 => 'billing',
        1 => 'support',
        2 => 'sales',
      ),
      'workflow_first' => true,
    ),
]);

echo $response->getBody();
const response = await fetch('https://test.rsflowhub.com/api/v1/ai/email-workflow', {
  method: 'POST',
  headers: {
    'Content-Type': 'application/json',
    'X-API-Key': 'rfh_your_api_key'
  },
  body: JSON.stringify({"subject":"Cancel subscription","email_content":"I would like to cancel my subscription from next month, please assist.","allowed_actions":["reply","forward","archive","escalate"],"allowed_departments":["billing","support","sales"],"workflow_first":true})
});

const data = await response.json();
console.log(data);
import requests

url = "https://test.rsflowhub.com/api/v1/ai/email-workflow"
headers = {
    "Content-Type": "application/json",
    "X-API-Key": "rfh_your_api_key"
}
payload = {"subject":"Cancel subscription","email_content":"I would like to cancel my subscription from next month, please assist.","allowed_actions":["reply","forward","archive","escalate"],"allowed_departments":["billing","support","sales"],"workflow_first":true}

response = requests.post(url, json=payload, headers=headers)
print(response.json())
Capabilities

Core Architectural Features

Automated Next-Best Action Engine

Evaluates incoming email content to choose the optimal action: "reply", "forward", "archive", "assign", or "escalate".

Department & Team Auto-Routing

Automatically routes emails to correct team queues like billing, technical support, sales, or legal.

Escalation Risk Detection

Detects urgent legal threats, executive complaints, or chargebacks requiring immediate human intervention.

Workflow-First Priority Mode

Evaluates routing rules before drafting reply text to deliver lightning-fast routing execution.

Practical Applications

Real-World Industry Use Cases

See how developers integrate this API endpoint into production apps.

Enterprise Email

Automated Enterprise Inbox Routing

Route incoming main company contact email inquiries automatically to Billing, Sales, or Legal queues.

Before: I would like to cancel my subscription from next month, please assist.
After: {"action": "assign", "department": "billing", "priority": "high", "reason": "subscription_cancellation"}
Sorts every incoming email by category and priority the moment it arrives.
Customer Support

Helpdesk Escalation Automation

Instantly escalate emails containing chargeback threats or legal complaints to senior retention leads.

Before: Your system leak exposed our data. We are contacting our legal counsel today.
After: {"action": "escalate", "department": "legal_security", "priority": "critical"}
Protects enterprise accounts through immediate escalation.
Sales Automation

Lead Qualification & CRM Assignment

Assign incoming qualified sales demo requests to regional account executives based on company location.

Before: Looking for enterprise pricing for our London office team of 100.
After: {"action": "forward", "department": "sales_emea", "priority": "high"}
Accelerates sales representative outreach speed.
Technical Comparison

Why Developers Choose AI Email Automation & Auto-Routing Workflow API

Comparing RSFlowHub's specialized API gateway vs raw multi-turn LLM prompts vs legacy regex rules.

Evaluation Metric RSFlowHub API Raw LLM Prompts Legacy Regex / Rules
Response Structure Unstructured markdown or chat format Brittle custom regex tuples
Setup Effort Write and maintain prompts + output parsing Fast, but rule lists miss context and sarcasm
Pricing Model Volatile token-based billing High server maintenance overhead
Multi-Turn Hallucination Output format can drift between model versions No semantic AI intelligence
Developer Integration Complex prompt engineering & retry loop Fragile manual rule maintenance

Request Parameters

6 Fields
email_content string
Required

Incoming email body or message payload to process.

subject string
Optional

Subject line of the incoming email.

allowed_actions array
Optional

Target allowed workflow actions (e.g. ["reply", "forward", "archive", "escalate"]).

allowed_departments array
Optional

Target departments (e.g. ["billing", "support", "sales"]).

workflow_first boolean
Optional

Prioritize workflow decision over text generation (Default: true).

custom_instructions string
Optional

Custom routing rules or business assignment guidelines.

JSON Response Envelope

Uniform API

Every endpoint returns the same envelope: success, request_id, data.result and meta.

response.json JSON
200 OK
{
    "success": true,
    "request_id": "req_3f9a2c7e-5b1d-4e8a-9c2f-7d6e1a0b4c8d",
    "data": {
        "result": {
            "action": "auto_reply",
            "department": "billing",
            "confidence": 0.9,
            "reasoning": "Clear duplicate-charge refund request covered by the standard refund policy.",
            "category": "billing",
            "intent": "refund_request",
            "priority": "high",
            "sentiment": "negative",
            "language": "en",
            "summary": "Duplicate charge on invoice INV-2041; customer requests a refund.",
            "reply_text": "Thanks for reaching out. We have refunded the duplicate payment for INV-2041.",
            "requires_human_escalation": false,
            "escalation_reason": null
        }
    },
    "meta": {
        "version": "v1",
        "timestamp": "2026-10-05T09:30:00Z"
    }
}
Format JSON
Charset UTF-8
Fallback Automatic
Rate Limit 120/min max
FAQs

Frequently Asked Questions

Everything you need to know about integrating and using AI Email Automation & Auto-Routing Workflow API.

The API evaluates sender intent, sentiment, urgency keywords, and allowed business departments to determine the optimal next workflow action.

Yes! You can pass allowed_actions and allowed_departments to restrict decisions to your company CRM workflow.

The engine flags high-risk keywords (e.g. legal action, security breach, chargeback) to trigger immediate escalation actions.

Email Workflow requests usually complete in 1 to 3 seconds, depending on input length and the AI model. Identical repeat requests are served from cache and return faster.

Standard Email Workflow API calls consume 2 base credits per request.
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