How to connect Greptile with ChatGPT

Connect ChatGPT to Greptile MCP. Search repo for security vulnerabilities across branches, summarize recent pull request comments and suggestions, and more using natural language, with authentication handled for you.

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Greptile MCP is a developer platform that indexes codebases, pull requests, and engineering knowledge. It helps teams find code quickly, review changes, and maintain reusable project context.

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How to connect Greptile MCP with ChatGPT

ChatGPT can take action across your apps and files, stay with a project for hours, and turn a goal into finished materials like sheets, slides, and docs, not just answers.

In this guide, I will explain the easiest and most secure way to connect your Greptile account to ChatGPT via Composio Connect, so it can search your codebase, inspect pull requests, summarize engineering knowledge, and manage context through natural language commands 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 Greptile integration lets ChatGPT take actions like creating drafts, sending updates, labeling records, and more.
1,500+ 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. We will use the ChatGPT desktop app, and the steps are the same on the web.
Access to the Greptile workspace you want to connect.
Composio plugin.

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 Greptile to ChatGPT

1. Install the Composio plugin

Click the button. ChatGPT opens the Composio plugin page. Click Install plugin.

Install in ChatGPT

Composio plugin page in ChatGPT with the Install plugin button

You can also find it inside ChatGPT: go to Settings, open Plugins, search the marketplace for Composio, and click Install plugin.

2. Authenticate

After you install, ChatGPT asks you to authenticate with Composio. Log in and click Allow access to authorize ChatGPT to use your Composio account.

Composio login and Allow access screen for ChatGPT

3. Start using Composio

That is it. Composio tools are now available in ChatGPT. Type @Composio followed by your request, for example @Composio find unread Greptile messages and summarize them, and it will run the actions you authorize. On first use it asks you to authorize Greptile.

Option 2: Add Composio as an MCP server

If you cannot use the plugin marketplace, add Composio as a custom MCP server instead.

1. Open the MCP settings

In ChatGPT, go to Settings and open the Plugins section. Inside the Plugins page, click the MCP tab.

ChatGPT settings showing the Plugins page with the MCP tab selected

2. Add the server

Click Add server. In the Name field enter Composio, for Type select Streamable HTTP, and in the URL field paste the Composio MCP server URL:

bash

https://connect.composio.dev/mcp

ChatGPT Add server dialog with the name Composio, type Streamable HTTP, and the Composio MCP URL

Then click Save. The Composio server now appears in your MCP plugins list.

ChatGPT Plugins page showing the Composio MCP server added to the list

3. Authenticate

Click Authenticate on the Composio entry, log in via Composio, and click Allow access. Composio tools are then available in ChatGPT the same way as with the plugin.

What you can do after connecting Greptile

Search repo for security vulnerabilities across branches
Summarize recent pull request comments and suggestions
Create context bundle from project docs

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 Greptile MCP action and event your agent gets out of the box.

Create custom context

Create a persistent review rule or pattern in the selected organization.

Get analytics overview

Get review analytics for repositories visible to the caller, optionally intersected by exact team, repository, and author filters.

Get code review

Get one code-review run by its stable id.

Get custom context

Get one saved review rule or pattern and up to 10 linked review-comment references.

Get knowledge base document

Read one current knowledge-base markdown document after listing its path.

Get me

Identify the caller and discover the organizations available to other tools.

Get merge request

Get one pull request or merge request with metadata, statistics, comments, up to 10 recent review records, and summary citations for the latest completed review.

List analytics filter options

List exact team names, repository names, or author logins available to the caller for analytics filters.

List analytics findings

List review findings visible to the caller, newest first, with optional exact scope, severity, security, stored-addressed-status, text, and date filters.

List code reviews

List code-review runs visible to the caller, newest first, optionally filtered by repository, PR number, or status.

List custom context

List saved review rules and learned patterns visible to the caller, newest first.

List knowledge base documents

List paths in one repository's current published knowledge base to map its documented subsystems before reading.

List knowledge bases

Discover repositories with reachable Greptile knowledge-base data; start here before asking how an unfamiliar repository works.

List merge request comments

List all matching comments for one pull request or merge request, newest first.

List merge requests

List merge requests and pull requests visible to the caller, newest first.

List pull requests

Alias of list_merge_requests with the same filters and result contract.

List repositories

List repositories visible to the caller in the selected organization, sorted by name.

Search custom context

Search visible custom-context bodies by case-insensitive substring, newest matches first.

Search greptile comments

Search Greptile-generated review comments by case-insensitive body substring across PR and CLI/headless reviews, newest first.

Search knowledge base

Search one repository's current knowledge base for a case-insensitive substring when you know the term, symbol, endpoint, or convention to investigate.

Trigger code review

Request a new asynchronous Greptile review for an existing GitHub pull request or GitLab merge request.

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FAQ

Frequently asked questions

With a standalone Greptile MCP server, the agents and LLMs can only access a fixed set of Greptile tools tied to that server. However, with the Composio Tool Router, agents can dynamically load tools from Greptile 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 Greptile tools.

Yes, absolutely. You can configure which Greptile 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 Greptile data and credentials are handled as safely as possible.

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