Bring Sender
to CrewAI
Learn how to connect Sender.net to CrewAI and start using 11 AI agent tools in minutes. Fully managed, enterprise secure, and ready to use without writing a single line of code.
What is the Sender.net MCP Server?
Connect your Sender.net account to any AI agent and take full control of your email marketing orchestration through natural conversation. Sender.net provides a powerful and affordable platform for managing subscribers, creating automated campaigns, and tracking engagement, and this integration allows you to orchestrate your entire marketing ecosystem without leaving your chat interface.
What you can do
- Subscriber & Audience Orchestration — List all managed subscribers and retrieve detailed profile metadata, including creating and organizing contacts into groups programmatically.
- Campaign Performance Intelligence — Retrieve real-time analytics for sent campaigns, including open rates, click-through rates, and subscriber growth via natural language.
- Group & Segment Control — Manage your subscriber lists and group associations to ensure your targeted communication is always synchronized directly from the AI interface.
- Transactional Messaging Management — Access account profile metadata and monitor campaign delivery statuses using simple AI commands.
- Operational Monitoring — Track system activity and monitor audience health to ensure your marketing operations are always optimized.
How it works
1. Subscribe to this server
2. Enter your Sender.net API access token from your dashboard settings
3. Start managing your email marketing from Claude, Cursor, or any MCP-compatible client
No more manual stat checking or CSV list management. Your AI acts as a dedicated marketing manager or audience coordinator.
Who is this for?
- Marketing Managers — quickly retrieve campaign results and monitor list growth without switching apps.
- Sales Teams — automate the ingestion of new leads and organize them into specific groups via natural conversation.
- E-commerce Owners — streamline the retrieval of subscriber engagement data and monitor marketing health directly within the chat.
Built-in capabilities (11)
Create a new email campaign
Add a new subscriber
Remove a subscriber
Get performance metrics
Get details for a subscriber group
Get details for a subscriber
Get your Sender.net profile
List all sent and draft campaigns
List your contact groups
Supports filtering by group or status. List your Sender.net subscribers
Update subscriber information
Why CrewAI?
When paired with CrewAI, Sender.net becomes a first-class tool in your multi-agent workflows. Each agent in the crew can call Sender.net tools autonomously, one agent queries data, another analyzes results, a third compiles reports, all orchestrated through Vinkius with zero configuration overhead.
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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
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Sequential and hierarchical crew patterns map naturally to real-world workflows: enumerate subdomains → analyze DNS history → check WHOIS records → compile findings into actionable reports
Sender.net in CrewAI
Sender.net and 3,400+ other MCP servers. One platform. One governance layer.
Teams that connect Sender.net 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 | 3,400+ 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 Sender.net in CrewAI
The Sender.net 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 11 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
Sender.net for CrewAI
Every tool call from CrewAI to the Sender.net MCP Server is protected by DLP redaction, cryptographic audit chains, V8 sandbox isolation, kill switch, and financial circuit breakers.
Frequently asked questions
Can my AI automatically add a new subscriber to a specific group by providing their email?
Yes! Use the create_subscriber tool. Provide the email address and an array of Group IDs, and your agent will create the record and assign them instantly.
How do I check the performance statistics for a recently sent campaign?
Simply ask the agent to run the get_campaign_stats action with the Campaign ID. It will retrieve the detailed metadata, including opens, clicks, and bounces.
How do I find my Sender.net API Token?
Log in to your Sender.net dashboard, navigate to Settings > API access tokens, and you will find or generate your unique Bearer token there.
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.