Compatible with every major AI agent and IDE
What is the MRPLN MCP Server?
Connect your MRPLN account to any AI agent to streamline your marketing automation and multi-channel customer engagement. MRPLN provides a unified platform for WhatsApp, SMS, and Email automation powered by AI.
What you can do
- Customer Management — Create, update, and list customers to maintain a clean and actionable marketing database
- WhatsApp Business API — Access your approved WABA templates and send highly engaging messages directly through Meta's official API
- Multi-channel Messaging — Send immediate or automated messages via SMS and Email to reach your audience where they are
- Tactic Monitoring — List and retrieve performance analytics for your marketing tactics to optimize ROI in real-time
- Template Management — List and use pre-approved message templates for consistent brand communication
How it works
- Subscribe to this server
- Enter your MRPLN API Key from your dashboard settings
- Start managing your marketing planning and execution from Claude, Cursor, or any MCP client
Who is this for?
- Marketing Agencies — manage multiple customer flows and multi-channel campaigns efficiently
- E-commerce Owners — automate post-purchase engagement and recovery via WhatsApp and SMS
- Sales Teams — qualify leads and maintain high-touch engagement across different channels
Built-in capabilities (10)
Create a new customer/lead
Get details for a specific customer
Get performance analytics for a tactic
List all customers/leads
List all marketing tactics
List WhatsApp Business templates
Send an email
Send an SMS message
Pass components as a JSON string. Send a WhatsApp message
Update an existing customer
Why CrewAI?
When paired with CrewAI, MRPLN becomes a first-class tool in your multi-agent workflows. Each agent in the crew can call MRPLN tools autonomously, one agent queries data, another analyzes results, a third compiles reports, all orchestrated through Vinkius with zero configuration overhead.
- —
Multi-agent collaboration lets you decompose complex workflows into specialized roles, one agent researches, another analyzes, a third generates reports, each with access to MCP tools
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CrewAI's native MCP integration requires zero adapter code: pass Vinkius Edge URL directly in the
mcpsparameter and agents auto-discover every available tool at runtime - —
Built-in task delegation and shared memory mean agents can pass context between steps without manual state management, enabling multi-hop reasoning across tool calls
- —
Sequential and hierarchical crew patterns map naturally to real-world workflows: enumerate subdomains → analyze DNS history → check WHOIS records → compile findings into actionable reports
MRPLN in CrewAI
MRPLN and 4,000+ other MCP servers. One platform. One governance layer.
Teams that connect MRPLN to CrewAI through Vinkius don't need to source, host, or maintain individual MCP servers. Every tool call runs inside a hardened runtime with credential isolation, DLP, and a signed audit chain.
Raw MCP | Vinkius | |
|---|---|---|
| Server catalog | Find and host yourself | 4,000+ managed |
| Infrastructure | Self-hosted | Sandboxed V8 isolates |
| Credential handling | Plaintext in config | Vault + runtime injection |
| Data loss prevention | None | Configurable DLP policies |
| Kill switch | None | Global instant shutdown |
| Financial circuit breakers | None | Per-server limits + alerts |
| Audit trail | None | Ed25519 signed logs |
| SIEM log streaming | None | Splunk, Datadog, Webhook |
| Honeytokens | None | Canary alerts on leak |
| Custom domains | Not applicable | DNS challenge verified |
| GDPR compliance | Manual effort | Automated purge + export |
Why teams choose Vinkius for MRPLN in CrewAI
The MRPLN MCP Server runs on Vinkius-managed infrastructure inside AWS — a purpose-built runtime with per-request V8 isolates, Ed25519 signed audit chains, and sub-40ms cold starts. All 10 tools execute in hardened sandboxes optimized for native MCP execution.
Your AI agents in CrewAI only access the data you authorize, with DLP that blocks sensitive information from ever reaching the model, kill switch for instant shutdown, and up to 60% token savings. Enterprise-grade infrastructure, zero maintenance.

* Every MCP server runs on Vinkius-managed infrastructure inside AWS - a purpose-built runtime with per-request V8 isolates, Ed25519 signed audit chains, and sub-40ms cold starts optimized for native MCP execution. See our infrastructure
How Vinkius secures
MRPLN for CrewAI
Every tool call from CrewAI to the MRPLN MCP Server is protected by DLP redaction, cryptographic audit chains, V8 sandbox isolation, kill switch, and financial circuit breakers.
Frequently asked questions
How do I get my MRPLN API Key?
Log in to your MRPLN dashboard at app.mrpln.com, go to Settings > API Keys, and generate a new key for your integration.
Can I send free-form WhatsApp messages?
WhatsApp Business API primarily requires approved templates for business-initiated conversations. Free-form text is available only within a 24-hour service window after a user message.
Which channels are supported for messaging?
MRPLN currently supports WhatsApp Business API, SMS, and Email messaging through this MCP server.
How does CrewAI discover and connect to MCP tools?
CrewAI connects to MCP servers lazily. when the crew starts, each agent resolves its MCP URLs and fetches the tool catalog via the standard tools/list method. This means tools are always fresh and reflect the server's current capabilities. No tool schemas need to be hardcoded.
Can different agents in the same crew use different MCP servers?
Yes. Each agent has its own mcps list, so you can assign specific servers to specific roles. For example, a reconnaissance agent might use a domain intelligence server while an analysis agent uses a vulnerability database server.
What happens when an MCP tool call fails during a crew run?
CrewAI wraps tool failures as context for the agent. The LLM receives the error message and can decide to retry with different parameters, fall back to a different tool, or mark the task as partially complete. This resilience is critical for production workflows.
Can CrewAI agents call multiple MCP tools in parallel?
CrewAI agents execute tool calls sequentially within a single reasoning step. However, you can run multiple agents in parallel using process=Process.parallel, each calling different MCP tools concurrently. This is ideal for workflows where separate data sources need to be queried simultaneously.
Can I run CrewAI crews on a schedule (cron)?
Yes. CrewAI crews are standard Python scripts, so you can invoke them via cron, Airflow, Celery, or any task scheduler. The crew.kickoff() method runs synchronously by default, making it straightforward to integrate into existing pipelines.
MCP tools not discovered
Ensure the Edge URL is correct. CrewAI connects lazily when the crew starts. check console output.
Agent not using tools
Make the task description specific. Instead of "do something", say "Use the available tools to list contacts".
Timeout errors
CrewAI has a 10s connection timeout by default. Ensure your network can reach the Edge URL.
Rate limiting or 429 errors
Vinkius enforces per-token rate limits. Check your subscription tier and request quota in the dashboard. Upgrade if you need higher throughput.
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