CursorIDE

ElectricSQL (Sync Engine) MCP Server

Bring Postgres
to Cursor

Name: ElectricSQL (Sync Engine) MCP Server
Price: 29 USD
Availability: InStock
Rating: 5.0 (1 reviews)
Author: Vinkius

Learn how to connect ElectricSQL (Sync Engine) to Cursor and start using 2 AI agent tools in minutes. Fully managed, enterprise secure, and ready to use without writing a single line of code.

GDPR Free for Subscribers

Get ShapePost Shape

Unlock for AI Agents

Ask AI about this MCP Server ChatGPT Claude Perplexity

Compatible with every major AI agent and IDE

Claude

ChatGPT

Cursor

Gemini

Windsurf

VS Code

JetBrains

Vercel

+ other MCP clients

What is the ElectricSQL (Sync Engine) MCP Server?

Connect your ElectricSQL sync engine to any AI agent to stream data directly from Postgres into your conversation context. This server leverages the Electric HTTP Sync API to fetch 'shapes' of data efficiently.

What you can do

Real-time Sync — Fetch data from Postgres tables with support for initial snapshots and incremental updates using log offsets.
Shape Management — Define specific subsets of data (shapes) using SQL-like WHERE clauses and precise column selection.
Live Streaming — Enable long-polling or Server-Sent Events (SSE) to keep your agent updated as data changes in the database.
Complex Filtering — Use POST-based subset snapshots to handle complex WHERE clauses without hitting URL length limits.
Pagination & Limits — Efficiently browse large datasets with built-in limit, offset_rows, and order_by support.

How it works

Subscribe to this server
Provide your Electric Service URL (e.g., your local or cloud Electric endpoint)
Start querying your Postgres data directly from Claude, Cursor, or any MCP client

Who is this for?

Developers — build AI-powered tools that need live access to application data without complex backend plumbing.
Data Engineers — inspect and sync specific database 'shapes' for analysis or debugging via natural language.
Product Teams — monitor real-time system state or user activity directly within the AI chat interface.

Built-in capabilities (2)

get_shape

Use offset=-1 for initial sync. Sync a shape of data out of Postgres via GET

post_shape

Sync a shape of data out of Postgres via POST (Subset Snapshots)

Why Cursor?

Cursor's Agent mode turns ElectricSQL (Sync Engine) into an in-editor superpower. Ask Cursor to generate code using live data from ElectricSQL (Sync Engine) and it fetches, processes, and writes. all in a single agentic loop. 2 tools appear alongside file editing and terminal access, creating a unified development environment grounded in real-time information.

—
Agent mode turns Cursor into an autonomous coding assistant that can read files, run commands, and call MCP tools without switching context
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Cursor's Composer feature can generate entire files using real-time data fetched through MCP. no copy-pasting from external dashboards
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MCP tools appear alongside built-in tools like file reading and terminal access, creating a unified agentic environment
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VS Code extension compatibility means your existing workflow, keybindings, and extensions all work alongside MCP tools

See it in action

ElectricSQL (Sync Engine) in Cursor

AI Agent→Vinkius

High Security·Kill Switch·Plug and Play

Why Vinkius

ElectricSQL (Sync Engine) and 4,000+ other MCP servers. One platform. One governance layer.

Teams that connect ElectricSQL (Sync Engine) to Cursor 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.

4,000+MCP Servers ready

<40msCold start

60%Token savings

	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

Unlock for AI Agents View step-by-step setup guide for Cursor →

Enterprise Security

Why teams choose Vinkius for ElectricSQL (Sync Engine) in Cursor

The ElectricSQL (Sync Engine) 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 2 tools execute in hardened sandboxes optimized for native MCP execution.

Your AI agents in Cursor 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.

Unlock for AI Agents View full ElectricSQL (Sync Engine) details →

Fully ManagedVinkius Servers

60%Token savings

High SecurityEnterprise-grade

IAMAccess control

EU AI ActCompliant

DLPData protection

V8 IsolateSandboxed

Ed25519Audit chain

<40msKill switch

Stream every event to Splunk, Datadog, or your own webhook in real-time

* 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

The Vinkius Advantage

How Vinkius secures
ElectricSQL (Sync Engine) for Cursor

Every tool call from Cursor to the ElectricSQL (Sync Engine) MCP Server is protected by DLP redaction, cryptographic audit chains, V8 sandbox isolation, kill switch, and financial circuit breakers.

< 40msCold start

Ed25519Signed audit chain

60%Token savings

FAQ

Frequently asked questions

How do I perform an initial sync of a database table?

Use the get_shape tool and set the offset parameter to -1. This triggers ElectricSQL to send the full initial snapshot of the specified table.

What should I do if my SQL WHERE clause is too long for a standard URL?

You should use the post_shape tool. It sends the filtering criteria in the request body, which prevents '414 Request-URI Too Long' errors when using complex logic.

Can the AI agent receive updates automatically when data changes in Postgres?

Yes! By setting the live parameter to true in get_shape, the agent can establish a long-polling connection to stream incremental changes as they happen.

What is Agent mode and why does it matter for MCP?

Agent mode is Cursor's autonomous execution mode where the AI can perform multi-step tasks: reading files, editing code, running terminal commands, and calling MCP tools. Without Agent mode, Cursor operates in a simpler ask-and-answer mode that doesn't support tool calling. Always ensure you're in Agent mode when working with MCP servers.

Where does Cursor store MCP configuration?

Cursor looks for MCP server configurations in a mcp.json file. You can configure servers at the project level (.cursor/mcp.json in your project root) or globally (~/.cursor/mcp.json). Project-level configs take precedence.

Can Cursor use MCP tools in inline edits?

No. MCP tools are only available in Agent mode through the chat panel. Inline completions and Tab suggestions do not trigger MCP tool calls. This is by design. tool calls require user visibility and approval.

How do I verify MCP tools are loaded?

Open Settings → Features → MCP and look for your server name. A green indicator means the server is connected. You can also check Agent mode's available tools by clicking the tools dropdown in the chat panel.