Email Validator by LifeStep
Validate email syntax and MX, detect disposable/role addresses, suggest typo fixes
No keyCORSHTTPS
Sendinblue
A service that provides solutions relating to marketing and/or transactional email and/or SMS
Checked today: not responding
API key
Required
HTTPS
Supported
Browser calls
No, needs a proxy
Status
Failing · 0/100
Overview & Architectural Role
Sendinblue provides programmatic access to a service that provides solutions relating to marketing and/or transactional email and/or sms. Delivered over secure HTTPS protocols, it exposes structured endpoints designed to integrate cleanly into modern frontend frameworks, backend microservices, and automated data pipelines without requiring local database provisioning.
Who it is built for
Engineers building web dashboards, mobile applications, CLI utilities, or background cron workers in need of reliable email data feeds.
Architectural Advantage
Consuming Sendinblue removes the operational overhead of running custom scrapers, orchestrating headless browser fleets, or manually seeding and maintaining a local database. Instead of reverse-engineering volatile DOM layouts or dealing with anti-bot IP blocks, your application connects directly to a standardized JSON interface designed for backend ingestion with consistent schema schemas. Dedicated authentication ensures rate quotas and credential tracking per project environment.
What our checks found
- Health score
- 0/100
- Reliability
- 0%
- Average latency
- 2558ms
Last checked 2026-10-24. Measured independently, not self-reported by the provider.
Core Use Cases & Architecture Ideas
Practical real-world patterns for integrating Sendinblue into software systems.
Automated Content Enrichment Pipeline
Augment user submissions or catalog items with metadata, tagging, summaries, or vector analysis.
Architecture: An async job queue pushes inbound text or media to Sendinblue, awaiting the transformed payload before updating the primary relational database.
Interactive Chat & Intelligent Assistant
Power real-time conversational flows, prompt engineering experiments, or automated customer support triage.
Architecture: Next.js API route streams response tokens from Sendinblue directly to a React frontend using Server-Sent Events (SSE).
Sentiment & Anomaly Detection Monitor
Classify incoming customer feedback, support tickets, or error logs to detect customer sentiment trends.
Architecture: Ingestion webhook forwards message payloads to Sendinblue for classification, routing high-priority flags to Slack notification channels.
Code Implementation Examples
Production-ready starting templates with error handling for Sendinblue.
// Requires an API key. Check the docs for whether it goes in a header or a query parameter.
// Modern native fetch with error handling
async function callApi() {
try {
const response = await fetch('https://developers.brevo.com/api/v1/resource', {
method: 'GET',
headers: {
'Authorization': 'Bearer YOUR_API_KEY',
Accept: 'application/json',
},
});
if (!response.ok) {
throw new Error(`HTTP ${response.status}: ${response.statusText}`);
}
const data = await response.json();
console.log('Response payload:', data);
return data;
} catch (error) {
console.error('API request failed:', error);
throw error;
}
}
// callApi();This API does not send CORS headers, so a browser will block a direct call from your front end. Call it from your server, or put a small proxy in front of it.
Response Payload & Live Testing
Inspect the expected JSON structure returned by Sendinblue.
Expected JSON Response Payload
Authentic sample payload structure to evaluate schema attributes before integration.
{
"id": "gen-nf051t1",
"model": "standard-v1",
"choices": [
{
"index": 0,
"message": {
"role": "assistant",
"content": "Processed output generated successfully from input prompt."
},
"finish_reason": "stop"
}
],
"usage": {
"prompt_tokens": 18,
"completion_tokens": 12,
"total_tokens": 30
}
}Format: application/json
Integration Considerations & Best Practices
Technical factors to keep in mind when integrating Sendinblue into production environments.
Implement In-Memory or Edge Caching
Avoid triggering rate limits on public feeds by caching response payloads in Redis, Vercel KV, or standard HTTP Cache-Control headers with a 5-to-15 minute TTL.
Shield Credentials in Backend Route Handlers
Never expose private API keys in client-side JavaScript or bundle environments. Proxy requests through a Next.js API route or serverless backend to keep secret keys out of public DevTools inspection.
CORS Proxy Required for Browser Frontend Calls
This API does not send Access-Control-Allow-Origin response headers. Direct fetch() calls from browser JavaScript will fail due to Same-Origin Policy. Route your calls through a server backend or lightweight edge proxy.
Validate HTTP Status Before Parsing JSON
Always inspect response.ok before executing response.json(). Upstream services returning 4xx or 502 Bad Gateway often serve HTML error pages, which cause syntax errors when parsed as JSON.
Where this listing comes from
Aggregated from one public source (public-apis), then normalised and checked by us.
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Sendinblue — common questions
Answered from what our own scheduled checks found, not from the provider's marketing.
Is Sendinblue free to use?
Sendinblue is listed in our free catalogue, but it requires an API key, so you will need to register before your first call. Providers frequently reserve higher limits and commercial use for paid plans.
Does Sendinblue need an API key?
Yes. Sendinblue authenticates with an API key. Keep it server-side rather than in browser code, because anything in your frontend bundle is readable by anyone who opens developer tools.
Can I call Sendinblue from browser JavaScript?
Not directly. Sendinblue did not return CORS headers when we checked, so the browser will block your page from reading the response even though the request itself succeeds. Call it from a server, or put a small proxy in front of it.
Is Sendinblue still working?
Not at our last check on 2026-10-24. Sendinblue did not respond successfully, which is why it is marked as down here. This may be temporary; we re-check on a schedule and the badge above reflects the most recent run.
Is Sendinblue available over HTTPS?
Yes. Sendinblue serves over HTTPS, so you can call it from a secure page without triggering a mixed-content block.