Compatible with every major AI agent and IDE
What is the Mailjet MCP Server?
Connect your Mailjet account to any AI agent and manage email operations through natural conversation.
What you can do
- Email Sending — Send transactional and marketing emails at scale
- Contact Management — Manage contact lists with properties and segmentation
- Template Management — Browse, create, and manage email templates
- Delivery Analytics — Track opens, clicks, bounces, and spam reports
- Campaign Management — Create and monitor email campaigns
- Statistics — Access detailed sending statistics and trends
How it works
- Subscribe to this server
- Enter your Mailjet API Key and Secret Key
- Start managing email from Claude, Cursor, or any MCP-compatible client
Who is this for?
- Developers — integrate email sending with rich APIs
- Marketers — manage campaigns and contact lists
- Operations — monitor deliverability and sender reputation
Built-in capabilities (12)
Add email to contacts
Check account stats
) for a specific campaign ID. Check campaign stats
Get template content
List audience contacts
List contact lists
List saved templates
Check sending domains
List past campaigns
Send transactional email
Send using template
Add contact to list
Why LlamaIndex?
LlamaIndex agents combine Mailjet tool responses with indexed documents for comprehensive, grounded answers. Connect 12 tools through Vinkius and query live data alongside vector stores and SQL databases in a single turn. ideal for hybrid search, data enrichment, and analytical workflows.
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Data-first architecture: LlamaIndex agents combine Mailjet tool responses with indexed documents for comprehensive, grounded answers
- —
Query pipeline framework lets you chain Mailjet tool calls with transformations, filters, and re-rankers in a typed pipeline
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Multi-source reasoning: agents can query Mailjet, a vector store, and a SQL database in a single turn and synthesize results
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Observability integrations show exactly what Mailjet tools were called, what data was returned, and how it influenced the final answer
Mailjet in LlamaIndex
Mailjet and 4,000+ other MCP servers. One platform. One governance layer.
Teams that connect Mailjet to LlamaIndex 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 Mailjet in LlamaIndex
The Mailjet 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 12 tools execute in hardened sandboxes optimized for native MCP execution.
Your AI agents in LlamaIndex 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
Mailjet for LlamaIndex
Every tool call from LlamaIndex to the Mailjet MCP Server is protected by DLP redaction, cryptographic audit chains, V8 sandbox isolation, kill switch, and financial circuit breakers.
Frequently asked questions
Can I send both transactional and marketing emails?
Yes. Mailjet supports both transactional (triggered) and marketing (campaign) emails through the same API.
Does Mailjet require two API keys?
Yes. Mailjet uses API Key and Secret Key pair with Basic Auth against api.mailjet.com/v3.
Can I manage contact lists and segments?
Yes. Create and manage contact lists, set contact properties, and build segments with dynamic conditions.
How does LlamaIndex connect to MCP servers?
Use the MCP client adapter to create a connection. LlamaIndex discovers all tools and wraps them as query engine tools compatible with any LlamaIndex agent.
Can I combine MCP tools with vector stores?
Yes. LlamaIndex agents can query Mailjet tools and vector store indexes in the same turn, combining real-time and embedded data for grounded responses.
Does LlamaIndex support async MCP calls?
Yes. LlamaIndex's async agent framework supports concurrent MCP tool calls for high-throughput data processing pipelines.
BasicMCPClient not found
Install: pip install llama-index-tools-mcp
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