How to integrate Elasticsearch MCP with ChatGPT

How to integrate Elasticsearch MCP with ChatGPT ChatGPT is one of the most popular AI tools today, with capabilities ranging from deep research and image generation to writing, coding, and everyday productivity. In this guide, I will explain the easiest and most secure way to connect your Elasticsearch account to ChatGPT via Composio Connect, so it can summarize unread updates from this morning, create draft replies to urgent messages, fetch contact details for recent senders, and more without ever putting your account credentials at risk.

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Elasticsearch is a distributed, RESTful search and analytics engine for all types of data. It delivers fast, scalable search and powerful analytics across massive datasets.

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How to integrate Elasticsearch MCP with ChatGPT

ChatGPT is one of the most popular AI tools today, with capabilities ranging from deep research and image generation to writing, coding, and everyday productivity.

In this guide, I will explain the easiest and most secure way to connect your Elasticsearch account to ChatGPT via Composio Connect, so it can summarize unread updates from this morning, create draft replies to urgent messages, fetch contact details for recent senders, and more without ever putting your account credentials at risk.

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Why use Composio over default connectors?

  • Apps with read and write access. Default connectors mostly can read your data. Composio's Elasticsearch integration lets ChatGPT take actions like creating drafts, sending updates, labeling records, and more.
  • 1,000+ SaaS toolkits out of the box. Composio gives you instant access to a vast catalog of pre-built connectors, from Gmail and Slack to Notion, Linear, and Salesforce.
  • One MCP server for every app. Connect any of your applications on demand through a single endpoint, rather than juggling a separate server for each app.
  • Smart, context-aware tool loading. Unlike traditional MCP servers that dump every available tool into the LLM context window, Composio searches for and loads only the tools relevant to the task at hand.
  • Cross-app automation. Chain actions across multiple apps in a single run - fetch a thread, summarize it in Notion, and post highlights to Slack without leaving the conversation.

Prerequisites

  • A ChatGPT account with Plus subscription or higher (Business, Enterprise, Edu, or Pro). We will use ChatGPT Web.
  • Access to the Elasticsearch workspace you want to connect.
  • Composio MCP.

Note: Composio connects through OAuth. You will be asked to sign in and approve specific permissions. Review the permission screen carefully if you are using a work account.

Step-by-step: Connect Elasticsearch to ChatGPT

1. Enable Developer Mode

In ChatGPT, go to Settings > Apps > Advanced settings and turn on Developer Mode.

ChatGPT settings showing Developer Mode toggle

2. Add the MCP server

Click Create app, then paste the Composio MCP server URL:

bash
https://connect.composio.dev/mcp
ChatGPT create app flow with Composio MCP URL

3. Authorize in your browser

A browser window will open automatically. Sign in to authorize ChatGPT to access your Composio account.

Composio authorization screen for ChatGPT MCP setup

4. Start using Composio

Composio tools are now available in ChatGPT chats and Deep Research. In every new chat, click the + icon at the bottom, click More, and select Composio to enable tools for that conversation.

What you can do after connecting Elasticsearch

  • Search for documents with error status
  • Create a new index named 'projects'
  • Update all records in 'users' index

Security + privacy notes (important)

  • Use least-privilege access: Only grant permissions you actually need.
  • Review OAuth permissions before approving: Make sure requested scopes match what you expect Composio and ChatGPT to do.
  • Keep write actions human-reviewed: For actions like sending messages, creating labels, or editing drafts, keep manual confirmation enabled.
  • Be careful with sensitive data: Avoid using this setup with highly sensitive information unless allowed by your personal, company, or client policies.
TOOLS

Supported Tools

Every Elasticsearch action and event your agent gets out of the box.

Get Index Schema

Tool to get the complete schema/mapping of a specific Elasticsearch index.

List Indices

Tool to list all available Elasticsearch indices.

Ping Cluster

Tool to ping the Elasticsearch cluster and check if it is running.

Query Index

Tool to query an Elasticsearch index with various filters, time ranges, and pagination support.

FRAMEWORKS

How to build Elasticsearch MCP Agent with another framework

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OpenAI Agents SDK

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Claude Code

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Claude Cowork logo

Claude Cowork

Use Elasticsearch MCP with Claude Cowork

Codex logo

Codex

Use Elasticsearch MCP with Codex

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Use Elasticsearch MCP with Cursor

OpenClaw logo

OpenClaw

Use Elasticsearch MCP with OpenClaw

Hermes logo

Hermes

Use Elasticsearch MCP with Hermes

CLI logo

CLI

Use Elasticsearch MCP with CLI

Google ADK logo

Google ADK

Use Elasticsearch MCP with Google ADK

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LangChain

Use Elasticsearch MCP with LangChain

Vercel AI SDK logo

Vercel AI SDK

Use Elasticsearch MCP with Vercel AI SDK

Mastra AI logo

Mastra AI

Use Elasticsearch MCP with Mastra AI

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LlamaIndex

Use Elasticsearch MCP with LlamaIndex

CrewAI logo

CrewAI

Use Elasticsearch MCP with CrewAI

OpenCode logo

OpenCode

Use Elasticsearch MCP with OpenCode

VS Code logo

VS Code

Use Elasticsearch MCP with VS Code

FAQ

Frequently asked questions

With a standalone Elasticsearch MCP server, the agents and LLMs can only access a fixed set of Elasticsearch tools tied to that server. However, with the Composio Tool Router, agents can dynamically load tools from Elasticsearch and many other apps based on the task at hand, all through a single MCP endpoint.

Yes, you can. ChatGPT fully supports MCP integration. You get structured tool calling, message history handling, and model orchestration while Tool Router takes care of discovering and serving the right Elasticsearch tools.

Yes, absolutely. You can configure which Elasticsearch scopes and actions are allowed when connecting your account to Composio. You can also bring your own OAuth credentials or API configuration so you keep full control over what the agent can do.

All sensitive data such as tokens, keys, and configuration is fully encrypted at rest and in transit. Composio is SOC 2 Type 2 compliant and follows strict security practices so your Elasticsearch data and credentials are handled as safely as possible.

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