How to integrate Greptile MCP with Atomic Agent

Connect Atomic Agent 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.

21 Tools

Introduction

Atomic Agent is an open-source AI agent that runs on your machine and supports local models through llama.cpp. Connect it to 1,500+ apps through Composio, including Greptile.

This guide uses Atomic Agent's built-in Composio integration. You need Atomic Agent v0.5.6 or later, your own Composio API key, and a Greptile account. See the Atomic Agent documentation for installation instructions.

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How Atomic Agent connects to Greptile

Atomic Agent connects to Composio's Tool Router over Streamable HTTP MCP. It discovers the tools needed for your request, and Composio handles account authentication.

Execution and account-connection tools follow Atomic Agent's configured approval policy. Review any approval prompt before allowing an action on your connected account.

Connect Greptile to Atomic Agent

  1. Sign up or sign in to the Composio dashboard. Copy your API key.
  2. In Atomic Agent, open the Integrations tab and select Composio. Select API key, press e, paste the key, and press Enter. The tools become available immediately, without a restart.
  3. Ask Atomic Agent to do something in Greptile. It searches Composio for the right tool.
  4. On first use, open the sign-in link returned in the chat. Connect your Greptile account, then return to Atomic Agent to continue.

Headless setup

Add the following line to ~/.atomic-agent/.env, replacing YOUR_COMPOSIO_API_KEY with your key. Start Atomic Agent after saving the file.

bash
COMPOSIO_API_KEY=YOUR_COMPOSIO_API_KEY

What is the Greptile MCP server, and what's possible with it?

The Greptile MCP server is an implementation of the Model Context Protocol that connects your AI agent and assistants like Claude, Cursor, etc directly to your Greptile account. It provides structured and secure access so your agent can perform Greptile operations on your behalf.

Use Greptile from Atomic Agent

With your account connected, ask Atomic Agent to work with Greptile in natural language. You can connect more apps through the same Composio integration as you need them.

Visit the Atomic Agent website or inspect the Atomic Agent source code.

Troubleshooting

Why is my API key rejected?

Copy the key directly from the Composio dashboard. Atomic Agent requires ASCII characters because it sends the key in an HTTP header. Remove any extra characters introduced when copying.

Why are Composio tools unavailable after saving a key?

Check that you use Atomic Agent v0.5.6 or later and that Composio is enabled in your configuration. A "composio": { "enabled": false } setting disables the integration while keeping the saved key on disk.

Does Composio have a free plan?

The Hobby plan includes 100,000 tool calls per month. Composio-managed OAuth apps have a lower included allowance. See Composio pricing for the current limits that apply to your connection.

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.

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. Atomic Agent 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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