Compatible with every major AI agent and IDE
What is the ToolJet MCP Server?
Connect your ToolJet workspace to any AI agent to interact with your internal databases and automate business logic through natural language.
What you can do
- Database Exploration — List all available tables within your ToolJet Database to understand your data structure.
- Advanced Querying — Execute SQL SELECT queries on your tables to retrieve specific records, filter data, and generate insights.
- Data Entry — Insert new rows into your database tables directly from the chat interface using structured JSON data.
- Workflow Automation — Trigger complex ToolJet Workflows via webhooks, passing custom payloads to start automated business processes.
How it works
- Subscribe to this server
- Enter your ToolJet API Key (and optional Host URL for self-hosted instances)
- Start managing your internal data and workflows from Claude, Cursor, or any MCP-compatible client
Who is this for?
- Developers — Quickly query internal databases or trigger CI/CD workflows without leaving the code editor.
- Operations Teams — Update records or start business processes using natural language instead of complex UIs.
- Data Analysts — Explore ToolJet Database tables and run ad-hoc queries to verify data integrity.
Built-in capabilities (4)
Insert a new row into a ToolJet Database table
List all tables in the ToolJet Database
Use this for reading data (SELECT). Perform a SQL query on a ToolJet Database table
Trigger a ToolJet Workflow via Webhook
Why LangChain?
LangChain's ecosystem of 500+ components combines seamlessly with ToolJet through native MCP adapters. Connect 4 tools via Vinkius and use ReAct agents, Plan-and-Execute strategies, or custom agent architectures. with LangSmith tracing giving full visibility into every tool call, latency, and token cost.
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The largest ecosystem of integrations, chains, and agents. combine ToolJet MCP tools with 500+ LangChain components
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Agent architecture supports ReAct, Plan-and-Execute, and custom strategies with full MCP tool access at every step
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LangSmith tracing gives you complete visibility into tool calls, latencies, and token usage for production debugging
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Memory and conversation persistence let agents maintain context across ToolJet queries for multi-turn workflows
ToolJet in LangChain
ToolJet and 4,000+ other MCP servers. One platform. One governance layer.
Teams that connect ToolJet to LangChain 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 ToolJet in LangChain
The ToolJet 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 4 tools execute in hardened sandboxes optimized for native MCP execution.
Your AI agents in LangChain 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
ToolJet for LangChain
Every tool call from LangChain to the ToolJet MCP Server is protected by DLP redaction, cryptographic audit chains, V8 sandbox isolation, kill switch, and financial circuit breakers.
Frequently asked questions
Can I perform complex SQL joins using this server?
Yes, the query_table tool allows you to execute SQL queries. As long as the tables exist in your ToolJet Database and your organization ID is correct, you can perform SELECT statements including joins and filters.
How do I trigger a specific automation I built in ToolJet?
You can use the trigger_workflow tool. You will need the workflow_id and can optionally provide a JSON payload to pass data into the workflow's entry point.
Can I see the list of all my database tables?
Absolutely. Use the list_tables tool to retrieve a complete list of all tables currently configured in your ToolJet Database workspace.
How does LangChain connect to MCP servers?
Use langchain-mcp-adapters to create an MCP client. LangChain discovers all tools and wraps them as native LangChain tools compatible with any agent type.
Which LangChain agent types work with MCP?
All agent types including ReAct, OpenAI Functions, and custom agents work with MCP tools. The tools appear as standard LangChain tools after the adapter wraps them.
Can I trace MCP tool calls in LangSmith?
Yes. All MCP tool invocations appear as traced steps in LangSmith, showing input parameters, response payloads, latency, and token usage.
MultiServerMCPClient not found
Install: pip install langchain-mcp-adapters
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